diff --git a/.competitive-verifier/docs/static/_includes/header-title.html b/.competitive-verifier/docs/static/_includes/header-title.html
index d01f0743..8cac119f 100644
--- a/.competitive-verifier/docs/static/_includes/header-title.html
+++ b/.competitive-verifier/docs/static/_includes/header-title.html
@@ -6,4 +6,4 @@ <h1><a href="{{ '/' | relative_url }}">{{ site.title | default: site.github.repo
 
 {% if site.email %}
 <p class="addr"><i class="fa-solid fa-envelope"></i>&nbsp;<a href="mailto:{{site.email}}">{{ site.email }}</a></p>
-{% endif %}
\ No newline at end of file
+{% endif %}
diff --git a/.competitive-verifier/docs/static/_includes/highlight_additional.html b/.competitive-verifier/docs/static/_includes/highlight_additional.html
index cde547f6..1c0ee8c8 100644
--- a/.competitive-verifier/docs/static/_includes/highlight_additional.html
+++ b/.competitive-verifier/docs/static/_includes/highlight_additional.html
@@ -1 +1 @@
-<script defer src="https://cdnjs.cloudflare.com/ajax/libs/highlight.js/11.6.0/languages/awk.min.js"></script>
\ No newline at end of file
+<script defer src="https://cdnjs.cloudflare.com/ajax/libs/highlight.js/11.6.0/languages/awk.min.js"></script>
diff --git a/.competitive-verifier/docs/static/_includes/installer.template.html b/.competitive-verifier/docs/static/_includes/installer.template.html
index 46680095..f7352bd1 100644
--- a/.competitive-verifier/docs/static/_includes/installer.template.html
+++ b/.competitive-verifier/docs/static/_includes/installer.template.html
@@ -78,4 +78,4 @@
                 aria-label="Copied!">Copy</button>
         </div>
     </div>
-</div>
\ No newline at end of file
+</div>
diff --git a/.competitive-verifier/docs/static/_includes/toppage_footer.html b/.competitive-verifier/docs/static/_includes/toppage_footer.html
index 099153fb..2f8985c7 100644
--- a/.competitive-verifier/docs/static/_includes/toppage_footer.html
+++ b/.competitive-verifier/docs/static/_includes/toppage_footer.html
@@ -1,2 +1,2 @@
 <h2>Others</h2>
-<div><ul><li><a href="{{ '/coverage' | relative_url }}">coverage</a></li></ul></div>
\ No newline at end of file
+<div><ul><li><a href="{{ '/coverage' | relative_url }}">coverage</a></li></ul></div>
diff --git a/.competitive-verifier/docs/static/installer.js b/.competitive-verifier/docs/static/installer.js
index 01611792..44aefded 100644
--- a/.competitive-verifier/docs/static/installer.js
+++ b/.competitive-verifier/docs/static/installer.js
@@ -1,4 +1,4 @@
-(async function () {
+(async () => {
   /**
    *  @param {string[]} lines
    *  @return {string} string with head space
@@ -23,7 +23,7 @@
   function yamlTextProperty(name, text) {
     const arr = text.split(/\r?\n/)
     arr.splice(0, 0, `${name}: |`)
-    return arr.join('\n' + inputStringHeadSpace)
+    return arr.join(`\n${inputStringHeadSpace}`)
   }
 
   /**
@@ -31,7 +31,7 @@
    *  @return {string} yaml array
    */
   function parallelIndexMatrix(size) {
-    if (isNaN(size)) {
+    if (Number.isNaN(size)) {
       throw new Error('Parallel size must be integer.')
     } else if (size < 1) {
       throw new Error('Parallel size must be positive.')
@@ -100,7 +100,7 @@
   function buildActionYaml() {
     try {
       const branch = inputBranch.value.trim()
-      const parallelSize = parseInt(inputParallelSize.value.trim())
+      const parallelSize = parseInt(inputParallelSize.value.trim(), 10)
       const configToml = inputConfigToml.value.trim()
       const include = inputInclude.value.trim()
       const exclude = inputExclude.value.trim()
@@ -212,11 +212,11 @@
             '  run: dotnet tool install -g CompetitiveVerifierCsResolver',
             '# required only if you have unit test.',
             '- name: Unit test',
-            '  run: dotnet test $UNITTEST_CSPROJ --logger "CompetitiveVerifier;OutDirectory=${{runner.temp}}/VerifierCsUnitTestResult" --no-build  -c Release',
+            `  run: dotnet test $UNITTEST_CSPROJ --logger "CompetitiveVerifier;OutDirectory=\${{runner.temp}}/VerifierCsUnitTestResult" --no-build  -c Release`,
             '  env:',
             '    UNITTEST_CSPROJ: YourUnittest.csproj',
             '- name: Resolve',
-            '  run: dotnet run --project $VERIFY_CSPROJ --no-launch-profile --no-build -c Release | tee ${{runner.temp}}/problems.json',
+            `  run: dotnet run --project $VERIFY_CSPROJ --no-launch-profile --no-build -c Release | tee \${{runner.temp}}/problems.json`,
             '  env:',
             '    VERIFY_CSPROJ: YourVerify.csproj',
             '- name: cs-resolve',
@@ -227,8 +227,8 @@
             '    # Specify patterns',
             includeParam,
             excludeParam,
-            '    unittest-result: ${{runner.temp}}/VerifierCsUnitTestResult/*.csv',
-            '    problems: ${{runner.temp}}/problems.json',
+            `    unittest-result: \${{runner.temp}}/VerifierCsUnitTestResult/*.csv`,
+            `    problems: \${{runner.temp}}/problems.json`,
           )
 
           initializeForVerification.push(...setup)
@@ -304,7 +304,7 @@ jobs:
 `
 
       if (initializeForResolving.length > 0) {
-        actionYaml += stepDefinition(["      # Initialize your own environment for resolving.", ...initializeForResolving]) + "\n"
+        actionYaml += `${stepDefinition(["      # Initialize your own environment for resolving.", ...initializeForResolving])}\n`
       }
 
       actionYaml += `
@@ -329,7 +329,7 @@ jobs:
     runs-on: ubuntu-latest
     needs: [setup]
     env:
-      SPLIT_SIZE: "${parseInt(inputParallelSize.value.trim())}"
+      SPLIT_SIZE: "${parallelSize}"
     strategy:
       matrix:
         # prettier-ignore
@@ -364,7 +364,7 @@ jobs:
           cache-pip: true
 `
       if (initializeForVerification.length > 0) {
-        actionYaml += stepDefinition(["      # Initialize your own environment for verification.", ...initializeForVerification]) + "\n"
+        actionYaml += `${stepDefinition(["      # Initialize your own environment for verification.", ...initializeForVerification])}\n`
       }
 
       actionYaml += `
@@ -404,14 +404,14 @@ jobs:
       - uses: actions/checkout@v4
         with:
           fetch-depth: 2147483647
-  
+
       - name: Download verify_files.json and all artifacts
         id: all-artifacts
         uses: competitive-verifier/actions/download-verify-artifact@v2
         with:
           download-all: true
           artifact-root: .artifacts/
-  
+
       - name: Extract bundled
         shell: bash
         run: |
@@ -424,7 +424,7 @@ jobs:
           fi
         env:
           SRCDIR: .artifacts/Bundled-\${{ runner.os }}
-  
+
       - name: Set up competitive-verifier
         uses: competitive-verifier/actions/setup@v2
         with:
@@ -602,7 +602,7 @@ jobs:
       outputCreateActionLink.href = createUrl
 
       const editUrl = `${repoRoot}/edit/${inputBranch.value}/.github/workflows/verify.yml`;
-      (async function () {
+      (async () => {
         const editResponse = await fetch(`https://api.github.com/repos/${repoUser}/${repoName}/contents/.github/workflows/verify.yml`)
         if (editResponse.ok)
           outputCreateActionLink.href = editUrl
@@ -612,8 +612,8 @@ jobs:
       const badgeVerifyRaw = document.getElementById('badge-verify-raw')
       const badgeVerifyLink = document.getElementById('badge-verify-link')
       const badgeVerifyImg = document.getElementById('badge-verify-img')
-      const link = repoRoot + "/actions"
-      const img = repoRoot + "/actions/workflows/verify.yml/badge.svg"
+      const link = `${repoRoot}/actions`
+      const img = `${repoRoot}/actions/workflows/verify.yml/badge.svg`
       badgeVerifyRaw.value = `[![Actions Status](${img})](${link})`
       badgeVerifyLink.href = link
       badgeVerifyImg.src = img
@@ -646,9 +646,9 @@ jobs:
     if (repsitory.endsWith('.git')) {
       repsitory = repsitory.substring(0, repsitory.length - 4)
     }
-    let found = repsitory.match(/github.com\/([^\/]+)\/([^\/]+)$/)
+    let found = repsitory.match(/github.com\/([^/]+)\/([^/]+)$/)
     if (!found) {
-      found = repsitory.match(/^([^\/]+)\/([^\/]+)$/)
+      found = repsitory.match(/^([^/]+)\/([^/]+)$/)
     }
     return found
   }
diff --git a/.editorconfig b/.editorconfig
new file mode 100644
index 00000000..d1aeab2e
--- /dev/null
+++ b/.editorconfig
@@ -0,0 +1,55 @@
+root = true
+
+[*]
+indent_style = space
+indent_size = 4
+
+end_of_line = lf
+charset = utf-8
+trim_trailing_whitespace = true
+insert_final_newline = true
+
+# Common binary files
+[*.{png,jpg,jpeg,gif,webp,ico,pdf,zip,gz,tar,7z,jar,war,class,exe,dll,so,dylib,woff,woff2,ttf,eot}]
+end_of_line = unset
+charset = unset
+trim_trailing_whitespace = unset
+insert_final_newline = unset
+
+# Markdown
+[*.{md,mdx}]
+indent_size = 2
+trim_trailing_whitespace = false
+
+# Generated Python and C / C++ binary files
+[*.{a,lib,o,obj,pyc,pyo,pyd}]
+end_of_line = unset
+charset = unset
+trim_trailing_whitespace = unset
+insert_final_newline = unset
+
+# Shell
+[*.{sh,bash,zsh}]
+indent_size = 2
+
+# YAML
+[*.{yml,yaml}]
+indent_size = 2
+
+# Generated JSON schema files
+[*.schema.json]
+indent_size = 2
+
+# Git bundle files
+[*.bundle]
+end_of_line = unset
+charset = unset
+trim_trailing_whitespace = unset
+insert_final_newline = unset
+
+# Test fixtures
+[*.{hello,in,out,txt}]
+end_of_line = unset
+charset = unset
+trim_trailing_whitespace = unset
+insert_final_newline = unset
diff --git a/.gitattributes b/.gitattributes
index c33bd9c4..248e71b4 100644
--- a/.gitattributes
+++ b/.gitattributes
@@ -1,10 +1,107 @@
 * text=auto eol=lf
 
-*.bundle binary
-*.gif binary
-*.ico binary
-*.jpg binary
-*.jpeg binary
-*.png binary
-*.woff binary
+# Common binary files
+*.png   binary
+*.jpg   binary
+*.jpeg  binary
+*.gif   binary
+*.webp  binary
+*.ico   binary
+*.pdf   binary
+*.zip   binary
+*.gz    binary
+*.tar   binary
+*.7z    binary
+*.jar   binary
+*.war   binary
+*.class binary
+*.exe   binary
+*.dll   binary
+*.so    binary
+*.dylib binary
+*.woff  binary
 *.woff2 binary
+*.ttf   binary
+*.eot   binary
+
+# Markdown
+*.md    text diff=markdown whitespace=-blank-at-eol
+*.mdx   text diff=markdown whitespace=-blank-at-eol
+
+# Python
+*.py    text diff=python
+*.pyi   text diff=python
+*.pyw   text diff=python
+
+# C / C++
+*.c     text diff=cpp
+*.cc    text diff=cpp
+*.cpp   text diff=cpp
+*.cxx   text diff=cpp
+*.h     text diff=cpp
+*.hh    text diff=cpp
+*.hpp   text diff=cpp
+*.hxx   text diff=cpp
+*.ipp   text diff=cpp
+*.tpp   text diff=cpp
+*.ixx   text diff=cpp
+*.cppm  text diff=cpp
+
+# Generated Python and C / C++ binary files
+*.a     binary
+*.lib   binary
+*.o     binary
+*.obj   binary
+*.pyc   binary
+*.pyo   binary
+*.pyd   binary
+
+# Shell
+*.sh    text diff=bash
+*.bash  text diff=bash
+*.zsh   text diff=bash
+
+# Java
+*.java  text diff=java
+
+# Go
+*.go    text diff=golang
+
+# Rust
+*.rs    text diff=rust
+
+# Awk
+*.awk   text
+
+# HTML
+*.html  text diff=html
+
+# CSS
+*.css   text diff=css
+*.scss  text diff=css
+
+# JavaScript
+*.js    text
+
+# JSON
+*.json  text
+
+# YAML
+*.yml   text
+*.yaml  text
+
+# Configuration and lock files
+*.toml  text
+*.lock  text
+
+# Git bundle files
+*.bundle binary
+
+# Test fixtures
+*.hello text -eol
+*.in    text -eol
+*.out   text -eol
+*.txt   text=auto -eol
+
+# Vendored documentation assets
+src/competitive_verifier_resources/jekyll/assets/vendor/** linguist-vendored -text -eol
diff --git a/.vscode/launch.json b/.vscode/launch.json
index 20e3b00f..1af0245f 100644
--- a/.vscode/launch.json
+++ b/.vscode/launch.json
@@ -57,4 +57,4 @@
             "console": "integratedTerminal"
         },
     ]
-}
\ No newline at end of file
+}
diff --git a/examples/awk/aplusb.awk b/examples/awk/aplusb.awk
index 1d5a4392..8ce2415a 100644
--- a/examples/awk/aplusb.awk
+++ b/examples/awk/aplusb.awk
@@ -1,4 +1,4 @@
 # competitive-verifier: TITLE Calculate "A + B"
 function add(a, b) {
     return a + b;
-}
\ No newline at end of file
+}
diff --git a/examples/awk/aplusb2.awk b/examples/awk/aplusb2.awk
index 88f768e4..f4eff287 100644
--- a/examples/awk/aplusb2.awk
+++ b/examples/awk/aplusb2.awk
@@ -1,2 +1,2 @@
 # competitive-verifier: LOCALCASE //examples/data/aplusb
-$0=$1+$2
\ No newline at end of file
+$0=$1+$2
diff --git a/examples/cpp/segment_tree.hpp b/examples/cpp/segment_tree.hpp
index 83e13cd5..b22dfc83 100644
--- a/examples/cpp/segment_tree.hpp
+++ b/examples/cpp/segment_tree.hpp
@@ -4,7 +4,7 @@
 #include "examples/cpp/monoids.hpp"
 
 /**
- * @brief a Segment Tree (generalized with monoids) 
+ * @brief a Segment Tree (generalized with monoids)
  * @tparam Monoid is a monoid; commutativity is not required
  * @see https://en.wikipedia.org/wiki/Segment_tree
  */
@@ -50,4 +50,4 @@ struct segment_tree {
 
 typedef segment_tree<plus_monoid> plus_segment_tree;
 typedef segment_tree<max_monoid> max_segment_tree;
-typedef segment_tree<min_monoid> min_segment_tree;
\ No newline at end of file
+typedef segment_tree<min_monoid> min_segment_tree;
diff --git a/examples/external/verify_files.json b/examples/external/verify_files.json
index 97f37561..7d8bfd61 100644
--- a/examples/external/verify_files.json
+++ b/examples/external/verify_files.json
@@ -117,4 +117,4 @@
             }
         }
     }
-}
\ No newline at end of file
+}
diff --git a/examples/go/helloworld_test.go b/examples/go/helloworld_test.go
index 6b03ca9a..48cd6e96 100644
--- a/examples/go/helloworld_test.go
+++ b/examples/go/helloworld_test.go
@@ -3,13 +3,13 @@
 package main
 
 import (
-	"./helloworld"
-	"testing"
+    "./helloworld"
+    "testing"
 )
 
 func TestHelloWorld(t *testing.T) {
-	want := "Hello World"
-	if got := helloworld.GetHelloWorld(); got != want {
-		t.Errorf("helloworld.GetHelloWorld() = %v, want %v", got, want)
-	}
+    want := "Hello World"
+    if got := helloworld.GetHelloWorld(); got != want {
+        t.Errorf("helloworld.GetHelloWorld() = %v, want %v", got, want)
+    }
 }
diff --git a/examples/prev-result.json b/examples/prev-result.json
index caefb5d9..5e057d65 100644
--- a/examples/prev-result.json
+++ b/examples/prev-result.json
@@ -1109,4 +1109,4 @@
             "newest": true
         }
     }
-}
\ No newline at end of file
+}
diff --git a/integration_test_data/.gitattributes b/integration_test_data/.gitattributes
index ff9f7dda..aae0f9ff 100644
--- a/integration_test_data/.gitattributes
+++ b/integration_test_data/.gitattributes
@@ -1,3 +1,98 @@
 * text=auto eol=lf
 
+# Common binary files
+*.png   binary
+*.jpg   binary
+*.jpeg  binary
+*.gif   binary
+*.webp  binary
+*.ico   binary
+*.pdf   binary
+*.zip   binary
+*.gz    binary
+*.tar   binary
+*.7z    binary
+*.jar   binary
+*.war   binary
+*.class binary
+*.exe   binary
+*.dll   binary
+*.so    binary
+*.dylib binary
+*.woff  binary
+*.woff2 binary
+*.ttf   binary
+*.eot   binary
+
+# Markdown
+*.md    text diff=markdown whitespace=-blank-at-eol
+*.mdx   text diff=markdown whitespace=-blank-at-eol
+
+# Python
+*.py    text diff=python
+*.pyi   text diff=python
+*.pyw   text diff=python
+
+# C / C++
+*.c     text diff=cpp
+*.cc    text diff=cpp
+*.cpp   text diff=cpp
+*.cxx   text diff=cpp
+*.h     text diff=cpp
+*.hh    text diff=cpp
+*.hpp   text diff=cpp
+*.hxx   text diff=cpp
+*.ipp   text diff=cpp
+*.tpp   text diff=cpp
+*.ixx   text diff=cpp
+*.cppm  text diff=cpp
+
+# Generated Python and C / C++ binary files
+*.a     binary
+*.lib   binary
+*.o     binary
+*.obj   binary
+*.pyc   binary
+*.pyo   binary
+*.pyd   binary
+
+# Java
+*.java  text diff=java
+
+# Go
+*.go    text diff=golang
+
+# Rust
+*.rs    text diff=rust
+
+# Awk
+*.awk   text
+
+# HTML
+*.html  text diff=html
+
+# CSS
+*.css   text diff=css
+*.scss  text diff=css
+
+# JavaScript
+*.js    text
+
+# JSON
+*.json  text
+
+# YAML
+*.yml   text
+*.yaml  text
+
+# Configuration and lock files
+*.toml  text
+
+# Git bundle files
 *.bundle binary
+
+# Test fixtures
+*.hello text -eol
+*.in    text -eol
+*.out   text -eol
+*.txt   text=auto -eol
diff --git a/integration_test_data/CompileFailure/verify.json b/integration_test_data/CompileFailure/verify.json
index 25ea500f..8fd71687 100644
--- a/integration_test_data/CompileFailure/verify.json
+++ b/integration_test_data/CompileFailure/verify.json
@@ -19,4 +19,4 @@
             ]
         }
     }
-}
\ No newline at end of file
+}
diff --git a/integration_test_data/GoData/config.toml b/integration_test_data/GoData/config.toml
index 59de12c9..557a4dc8 100644
--- a/integration_test_data/GoData/config.toml
+++ b/integration_test_data/GoData/config.toml
@@ -1,3 +1,3 @@
 [languages.go]
 compile = "env GO111MODULE=off go build -o {tempdir}/{path} {basedir}/{path}"
-execute = "{tempdir}/{path}"
\ No newline at end of file
+execute = "{tempdir}/{path}"
diff --git a/integration_test_data/GoData/helloworld_test.go b/integration_test_data/GoData/helloworld_test.go
index 6b03ca9a..48cd6e96 100644
--- a/integration_test_data/GoData/helloworld_test.go
+++ b/integration_test_data/GoData/helloworld_test.go
@@ -3,13 +3,13 @@
 package main
 
 import (
-	"./helloworld"
-	"testing"
+    "./helloworld"
+    "testing"
 )
 
 func TestHelloWorld(t *testing.T) {
-	want := "Hello World"
-	if got := helloworld.GetHelloWorld(); got != want {
-		t.Errorf("helloworld.GetHelloWorld() = %v, want %v", got, want)
-	}
+    want := "Hello World"
+    if got := helloworld.GetHelloWorld(); got != want {
+        t.Errorf("helloworld.GetHelloWorld() = %v, want %v", got, want)
+    }
 }
diff --git a/integration_test_data/HandMadeDocs/docs/static/foo/bar.js b/integration_test_data/HandMadeDocs/docs/static/foo/bar.js
index 24b93b48..a5b97098 100644
--- a/integration_test_data/HandMadeDocs/docs/static/foo/bar.js
+++ b/integration_test_data/HandMadeDocs/docs/static/foo/bar.js
@@ -1 +1 @@
-console.log('foo')
\ No newline at end of file
+console.log('foo')
diff --git a/integration_test_data/HandMadeDocs/libdoc/plain.html b/integration_test_data/HandMadeDocs/libdoc/plain.html
index 10b775ae..49c7f6d2 100644
--- a/integration_test_data/HandMadeDocs/libdoc/plain.html
+++ b/integration_test_data/HandMadeDocs/libdoc/plain.html
@@ -3,4 +3,4 @@
 <head><meta charset="UTF-8"><title>Document</title>
 </head>
 <body><h1>Hello</h1></body>
-</html>
\ No newline at end of file
+</html>
diff --git a/integration_test_data/HandMadeDocs/result.json b/integration_test_data/HandMadeDocs/result.json
index 253cd346..80b0c759 100644
--- a/integration_test_data/HandMadeDocs/result.json
+++ b/integration_test_data/HandMadeDocs/result.json
@@ -2,4 +2,4 @@
     "$schema": "../../schema/verify_result.schema.json",
     "total_seconds": 0,
     "files": {}
-}
\ No newline at end of file
+}
diff --git a/integration_test_data/HandMadeDocs/verify.json b/integration_test_data/HandMadeDocs/verify.json
index 41d13f6b..34821973 100644
--- a/integration_test_data/HandMadeDocs/verify.json
+++ b/integration_test_data/HandMadeDocs/verify.json
@@ -111,4 +111,4 @@
             ]
         }
     }
-}
\ No newline at end of file
+}
diff --git a/integration_test_data/IncludeExclude/config.toml b/integration_test_data/IncludeExclude/config.toml
index fb8c6bad..8ffe0677 100644
--- a/integration_test_data/IncludeExclude/config.toml
+++ b/integration_test_data/IncludeExclude/config.toml
@@ -1,4 +1,4 @@
 [languages.txt]
 compile = "true"
 execute = "true"
-list_dependencies = ""
\ No newline at end of file
+list_dependencies = ""
diff --git a/integration_test_data/UserDefinedAndPythonData/awk/aplusb.awk b/integration_test_data/UserDefinedAndPythonData/awk/aplusb.awk
index 1d5a4392..8ce2415a 100644
--- a/integration_test_data/UserDefinedAndPythonData/awk/aplusb.awk
+++ b/integration_test_data/UserDefinedAndPythonData/awk/aplusb.awk
@@ -1,4 +1,4 @@
 # competitive-verifier: TITLE Calculate "A + B"
 function add(a, b) {
     return a + b;
-}
\ No newline at end of file
+}
diff --git a/integration_test_data/UserDefinedAndPythonData/awk/aplusb_direct.awk b/integration_test_data/UserDefinedAndPythonData/awk/aplusb_direct.awk
index c3c86024..e209f4c1 100644
--- a/integration_test_data/UserDefinedAndPythonData/awk/aplusb_direct.awk
+++ b/integration_test_data/UserDefinedAndPythonData/awk/aplusb_direct.awk
@@ -1,2 +1,2 @@
 # competitive-verifier: PROBLEM https://judge.yosupo.jp/problem/aplusb
-$0=$1 + $2
\ No newline at end of file
+$0=$1 + $2
diff --git a/integration_test_data/UserDefinedAndPythonData/docs_settings/static/_includes/head-custom.html b/integration_test_data/UserDefinedAndPythonData/docs_settings/static/_includes/head-custom.html
index ee297941..7d96c179 100644
--- a/integration_test_data/UserDefinedAndPythonData/docs_settings/static/_includes/head-custom.html
+++ b/integration_test_data/UserDefinedAndPythonData/docs_settings/static/_includes/head-custom.html
@@ -1,4 +1,4 @@
 <link rel="stylesheet" href="{{ "/assets/css/default.css" | relative_url }}">
 {% include mathjax/mathjax.html %}
 {% include head-custom2.html %}
-{% include highlight/highlight_header.html %}
\ No newline at end of file
+{% include highlight/highlight_header.html %}
diff --git a/integration_test_data/UserDefinedAndPythonData/python/success1.py b/integration_test_data/UserDefinedAndPythonData/python/success1.py
index 0634b7fb..9c4af685 100644
--- a/integration_test_data/UserDefinedAndPythonData/python/success1.py
+++ b/integration_test_data/UserDefinedAndPythonData/python/success1.py
@@ -23,4 +23,4 @@ def main() -> None:
 # `https://example.com/top_back
 # 'https://example.com/single'
 # "https://example.com/double"
-# `https://example.com/back`
\ No newline at end of file
+# `https://example.com/back`
diff --git a/src/competitive_verifier_resources/.gitattributes b/src/competitive_verifier_resources/.gitattributes
index f0f52beb..eb663d72 100644
--- a/src/competitive_verifier_resources/.gitattributes
+++ b/src/competitive_verifier_resources/.gitattributes
@@ -1,6 +1,61 @@
 * text=auto eol=lf
 
-*.jpg binary
-*.png binary
-*.woff binary
+# Common binary files
+*.png   binary
+*.jpg   binary
+*.jpeg  binary
+*.gif   binary
+*.webp  binary
+*.ico   binary
+*.pdf   binary
+*.zip   binary
+*.gz    binary
+*.tar   binary
+*.7z    binary
+*.jar   binary
+*.war   binary
+*.class binary
+*.exe   binary
+*.dll   binary
+*.so    binary
+*.dylib binary
+*.woff  binary
 *.woff2 binary
+*.ttf   binary
+*.eot   binary
+
+# Markdown
+*.md    text diff=markdown whitespace=-blank-at-eol
+*.mdx   text diff=markdown whitespace=-blank-at-eol
+
+# Python
+*.py    text diff=python
+*.pyi   text diff=python
+*.pyw   text diff=python
+
+# Generated Python binary files
+*.pyc   binary
+*.pyo   binary
+*.pyd   binary
+
+# HTML
+*.html  text diff=html
+
+# CSS
+*.css   text diff=css
+*.scss  text diff=css
+
+# JavaScript
+*.js    text
+
+# JSON
+*.json  text
+
+# Test fixtures
+*.hello text -eol
+*.in    text -eol
+*.out   text -eol
+*.txt   text=auto -eol
+
+# Vendored documentation assets
+jekyll/assets/vendor/** linguist-vendored -text -eol
diff --git a/src/competitive_verifier_resources/jekyll/_includes/code.html b/src/competitive_verifier_resources/jekyll/_includes/code.html
index 85f2519a..19b1a320 100644
--- a/src/competitive_verifier_resources/jekyll/_includes/code.html
+++ b/src/competitive_verifier_resources/jekyll/_includes/code.html
@@ -17,4 +17,4 @@
 </div>
 {%- else -%}
 <div style="height: 5em;">:x: <b>There is no code.</b></div>
-{%- endif -%}
\ No newline at end of file
+{%- endif -%}
diff --git a/src/competitive_verifier_resources/jekyll/_includes/code_and_testcases.html b/src/competitive_verifier_resources/jekyll/_includes/code_and_testcases.html
index 294565c3..87d1c45b 100644
--- a/src/competitive_verifier_resources/jekyll/_includes/code_and_testcases.html
+++ b/src/competitive_verifier_resources/jekyll/_includes/code_and_testcases.html
@@ -33,4 +33,4 @@ <h2>{{ include.title | default: 'Code' }}</h2>
         {%- endfor -%}
     </tbody>
 </table>
-{%- endif -%}
\ No newline at end of file
+{%- endif -%}
diff --git a/src/competitive_verifier_resources/jekyll/_includes/document_body.html b/src/competitive_verifier_resources/jekyll/_includes/document_body.html
index 7850e09e..135075dd 100644
--- a/src/competitive_verifier_resources/jekyll/_includes/document_body.html
+++ b/src/competitive_verifier_resources/jekyll/_includes/document_body.html
@@ -1,2 +1,2 @@
 {%- include dependencies.html data=include.data -%}
-{%- include code_and_testcases.html data=include.data -%}
\ No newline at end of file
+{%- include code_and_testcases.html data=include.data -%}
diff --git a/src/competitive_verifier_resources/jekyll/_includes/head-custom.html b/src/competitive_verifier_resources/jekyll/_includes/head-custom.html
index 4ffaf5a2..341adc35 100644
--- a/src/competitive_verifier_resources/jekyll/_includes/head-custom.html
+++ b/src/competitive_verifier_resources/jekyll/_includes/head-custom.html
@@ -12,4 +12,4 @@
 <link rel="stylesheet" href="{{ "/assets/css/default.css" | relative_url }}">
 {% include highlight/highlight_header.html %}
 {% include mathjax/mathjax.html %}
-{% include head-custom2.html %}
\ No newline at end of file
+{% include head-custom2.html %}
diff --git a/src/competitive_verifier_resources/jekyll/_includes/head-custom2.html b/src/competitive_verifier_resources/jekyll/_includes/head-custom2.html
index 579e52fb..19d16426 100644
--- a/src/competitive_verifier_resources/jekyll/_includes/head-custom2.html
+++ b/src/competitive_verifier_resources/jekyll/_includes/head-custom2.html
@@ -1 +1 @@
-<!-- customize with your own .competitive-verifier/docs/static/_includes/head-custom2.html file -->
\ No newline at end of file
+<!-- customize with your own .competitive-verifier/docs/static/_includes/head-custom2.html file -->
diff --git a/src/competitive_verifier_resources/jekyll/_includes/highlight/highlight_header.html b/src/competitive_verifier_resources/jekyll/_includes/highlight/highlight_header.html
index 3e97ae7a..911d15d5 100644
--- a/src/competitive_verifier_resources/jekyll/_includes/highlight/highlight_header.html
+++ b/src/competitive_verifier_resources/jekyll/_includes/highlight/highlight_header.html
@@ -6,4 +6,4 @@
 
 <script defer src="{{ "/assets/vendor/highlight/highlight.min.js" | relative_url }}"></script>
 {% include highlight_additional.html %}
-<script defer src="{{ "/assets/js/code.js" | relative_url }}"></script>
\ No newline at end of file
+<script defer src="{{ "/assets/js/code.js" | relative_url }}"></script>
diff --git a/src/competitive_verifier_resources/jekyll/_includes/highlight_additional.html b/src/competitive_verifier_resources/jekyll/_includes/highlight_additional.html
index f0a7487a..d5a29230 100644
--- a/src/competitive_verifier_resources/jekyll/_includes/highlight_additional.html
+++ b/src/competitive_verifier_resources/jekyll/_includes/highlight_additional.html
@@ -1 +1 @@
-<!-- customize with your own .competitive-verifier/docs/static/_includes/highlight_additional.html file -->
\ No newline at end of file
+<!-- customize with your own .competitive-verifier/docs/static/_includes/highlight_additional.html file -->
diff --git a/src/competitive_verifier_resources/jekyll/_includes/mathjax/mathjax.html b/src/competitive_verifier_resources/jekyll/_includes/mathjax/mathjax.html
index 6c05afab..09e7a708 100644
--- a/src/competitive_verifier_resources/jekyll/_includes/mathjax/mathjax.html
+++ b/src/competitive_verifier_resources/jekyll/_includes/mathjax/mathjax.html
@@ -2,4 +2,4 @@
 {%- include mathjax/mathjax2.html -%}
 {%- else -%}
 {%- include mathjax/mathjax3.html -%}
-{%- endif -%}
\ No newline at end of file
+{%- endif -%}
diff --git a/src/competitive_verifier_resources/jekyll/_includes/mathjax/mathjax2.html b/src/competitive_verifier_resources/jekyll/_includes/mathjax/mathjax2.html
index 7c85fe81..94b743ab 100644
--- a/src/competitive_verifier_resources/jekyll/_includes/mathjax/mathjax2.html
+++ b/src/competitive_verifier_resources/jekyll/_includes/mathjax/mathjax2.html
@@ -1,3 +1,3 @@
 <!-- MathJax 2 CDN loading is intentionally disabled.
      Fall back to the self-hosted MathJax 3 setup. -->
-{% include mathjax/mathjax3.html %}
\ No newline at end of file
+{% include mathjax/mathjax3.html %}
diff --git a/src/competitive_verifier_resources/jekyll/_includes/mathjax/mathjax3.html b/src/competitive_verifier_resources/jekyll/_includes/mathjax/mathjax3.html
index 0f836fb6..f291a818 100644
--- a/src/competitive_verifier_resources/jekyll/_includes/mathjax/mathjax3.html
+++ b/src/competitive_verifier_resources/jekyll/_includes/mathjax/mathjax3.html
@@ -1,2 +1,2 @@
 <script defer src="{{ "/assets/js/mathjax-config.js" | relative_url }}"></script>
-<script defer src="{{ "/assets/vendor/mathjax/es5/tex-mml-chtml.js" | relative_url }}" id="MathJax-script"></script>
\ No newline at end of file
+<script defer src="{{ "/assets/vendor/mathjax/es5/tex-mml-chtml.js" | relative_url }}" id="MathJax-script"></script>
diff --git a/src/competitive_verifier_resources/jekyll/_includes/multidoc_body.html b/src/competitive_verifier_resources/jekyll/_includes/multidoc_body.html
index 65d98d67..30f08494 100644
--- a/src/competitive_verifier_resources/jekyll/_includes/multidoc_body.html
+++ b/src/competitive_verifier_resources/jekyll/_includes/multidoc_body.html
@@ -24,4 +24,4 @@
     {%- capture page_title -%}{{code.path | xml_escape }}{%- endcapture -%}
 {%- endif -%}
 {%- include code_and_testcases.html data=code title=page_title header=header test_cases_tag='h3' -%}
-{%- endfor -%}
\ No newline at end of file
+{%- endfor -%}
diff --git a/src/competitive_verifier_resources/jekyll/_includes/site_description.html b/src/competitive_verifier_resources/jekyll/_includes/site_description.html
index 258da2f0..d3c38057 100644
--- a/src/competitive_verifier_resources/jekyll/_includes/site_description.html
+++ b/src/competitive_verifier_resources/jekyll/_includes/site_description.html
@@ -5,4 +5,4 @@
 {{- site.description -}}
 {%- else -%}
 {{- site.github.project_tagline -}}
-{%- endif -%}
\ No newline at end of file
+{%- endif -%}
diff --git a/src/competitive_verifier_resources/jekyll/_includes/toppage_body.html b/src/competitive_verifier_resources/jekyll/_includes/toppage_body.html
index 438c61ce..1e6f86e4 100644
--- a/src/competitive_verifier_resources/jekyll/_includes/toppage_body.html
+++ b/src/competitive_verifier_resources/jekyll/_includes/toppage_body.html
@@ -19,4 +19,4 @@ <h3>{{ category.name }}</h3>
     {%- endfor -%}
 </ul>
 {%- endfor -%}
-{%- endfor -%}
\ No newline at end of file
+{%- endfor -%}
diff --git a/src/competitive_verifier_resources/jekyll/_includes/toppage_footer.html b/src/competitive_verifier_resources/jekyll/_includes/toppage_footer.html
index fb079469..f694bbee 100644
--- a/src/competitive_verifier_resources/jekyll/_includes/toppage_footer.html
+++ b/src/competitive_verifier_resources/jekyll/_includes/toppage_footer.html
@@ -1 +1 @@
-<!-- customize with your own .competitive-verifier/docs/static/_includes/toppage_footer.html file -->
\ No newline at end of file
+<!-- customize with your own .competitive-verifier/docs/static/_includes/toppage_footer.html file -->
diff --git a/src/competitive_verifier_resources/jekyll/_layouts/page.html b/src/competitive_verifier_resources/jekyll/_layouts/page.html
index ab52aff5..0f408ea1 100644
--- a/src/competitive_verifier_resources/jekyll/_layouts/page.html
+++ b/src/competitive_verifier_resources/jekyll/_layouts/page.html
@@ -4,4 +4,4 @@
 
 <div {%- if page.lang %} lang="{{page.lang}}"{%- endif -%}>
 {{- content -}}
-</div>
\ No newline at end of file
+</div>
diff --git a/src/competitive_verifier_resources/jekyll/assets/css/code.scss b/src/competitive_verifier_resources/jekyll/assets/css/code.scss
index a761a589..10e1a02b 100644
--- a/src/competitive_verifier_resources/jekyll/assets/css/code.scss
+++ b/src/competitive_verifier_resources/jekyll/assets/css/code.scss
@@ -25,7 +25,7 @@
 .hljs {
     padding: 0;
     display: block;
-    
+
     &.disable {
         display: none;
     }
@@ -67,4 +67,4 @@
     &.selected {
         background-color: #cce;
     }
-}
\ No newline at end of file
+}
diff --git a/src/competitive_verifier_resources/jekyll/assets/css/default.scss b/src/competitive_verifier_resources/jekyll/assets/css/default.scss
index 69b7c4d7..e3763cf1 100644
--- a/src/competitive_verifier_resources/jekyll/assets/css/default.scss
+++ b/src/competitive_verifier_resources/jekyll/assets/css/default.scss
@@ -31,4 +31,4 @@ h1 a:focus {
 
 .testcases-table .col:not(.col1):not(.col2) {
     text-align: center;
-}
\ No newline at end of file
+}
diff --git a/src/competitive_verifier_resources/jekyll/assets/js/mathjax-config.js b/src/competitive_verifier_resources/jekyll/assets/js/mathjax-config.js
index b0b2c8ec..28d81456 100644
--- a/src/competitive_verifier_resources/jekyll/assets/js/mathjax-config.js
+++ b/src/competitive_verifier_resources/jekyll/assets/js/mathjax-config.js
@@ -32,4 +32,4 @@
             load: ['input/asciimath', '[tex]/noerrors']
         }
     };
-})();
\ No newline at end of file
+})();
diff --git a/src/competitive_verifier_resources/jekyll_theme_overrides/jekyll-theme-minimal/_layouts/default.html b/src/competitive_verifier_resources/jekyll_theme_overrides/jekyll-theme-minimal/_layouts/default.html
index b5d3fe5b..75ba8dd8 100644
--- a/src/competitive_verifier_resources/jekyll_theme_overrides/jekyll-theme-minimal/_layouts/default.html
+++ b/src/competitive_verifier_resources/jekyll_theme_overrides/jekyll-theme-minimal/_layouts/default.html
@@ -51,4 +51,4 @@ <h1><a href="{{ "/" | absolute_url }}">{{ site.title | default: site.github.repo
 
     <script src="{{ "/assets/js/scale.fix.js" | relative_url }}"></script>
   </body>
-</html>
\ No newline at end of file
+</html>