From 122616424f03edfe6a3b6f6dee96c01026884e89 Mon Sep 17 00:00:00 2001
From: Amir-c-137 <trool.usiz@gmail.com>
Date: Sun, 28 Apr 2024 16:57:01 +0330
Subject: [PATCH 1/3] add 3 function

---
 .DS_Store                         | Bin 0 -> 6148 bytes
 40130212009/How To.txt            |   3 +++
 40130212009/findMissingNumber.js  |  13 +++++++++++++
 40130212009/maximumSubarraySum.js |  22 ++++++++++++++++++++++
 4 files changed, 38 insertions(+)
 create mode 100644 .DS_Store
 create mode 100644 40130212009/How To.txt
 create mode 100644 40130212009/findMissingNumber.js
 create mode 100644 40130212009/maximumSubarraySum.js

diff --git a/.DS_Store b/.DS_Store
new file mode 100644
index 0000000000000000000000000000000000000000..b16c1c28a86745c56db6afc6a76af47821cf829b
GIT binary patch
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diff --git a/40130212009/How To.txt b/40130212009/How To.txt
new file mode 100644
index 0000000..a4c6544
--- /dev/null
+++ b/40130212009/How To.txt	
@@ -0,0 +1,3 @@
+put your answers in a folder.
+rename that folder to your student number.
+after finishing assignment, send a pull request to original repo
\ No newline at end of file
diff --git a/40130212009/findMissingNumber.js b/40130212009/findMissingNumber.js
new file mode 100644
index 0000000..f9b5847
--- /dev/null
+++ b/40130212009/findMissingNumber.js
@@ -0,0 +1,13 @@
+function findMissingNumber(array) {
+  let n = array.length;
+  let sum = (n * (n + 1)) / 2;
+  let sumOfElementArray = 0;
+  for (let i = 0; i < array.length; i++) {
+    sumOfElementArray += array[i];
+  }
+  let missingNumber = sum - sumOfElementArray;
+  return missingNumber;
+}
+
+let array = [0, 1, 2, 3, 5];
+console.log(findMissingNumber(array));
diff --git a/40130212009/maximumSubarraySum.js b/40130212009/maximumSubarraySum.js
new file mode 100644
index 0000000..9f09592
--- /dev/null
+++ b/40130212009/maximumSubarraySum.js
@@ -0,0 +1,22 @@
+function maximumSubarraySum(array) {
+  let n = array.length;
+  let max = array[0];
+  for (let i = 0; i < n; i++) {
+    let s = array[i];
+    if (s >= max) {
+      max = s;
+    }
+    let j = i + 1;
+    while (j < n) {
+      s += array[j];
+      if (s >= max) {
+        max = s;
+      }
+      j++;
+    }
+  }
+  return max;
+}
+
+let array = [1, 5, -1, -50, 3, 4, 7, -5];
+console.log(maximumSubarraySum(array));

From fb708d678052f48c03958d9389e3ce042da32701 Mon Sep 17 00:00:00 2001
From: Amir-c-137 <trool.usiz@gmail.com>
Date: Sun, 28 Apr 2024 17:04:49 +0330
Subject: [PATCH 2/3] add next 3 functions

---
 40130212009/mergeSortedArrays.js | 31 +++++++++++++++++++++++++++++++
 40130212009/removeDuplicates.js  | 12 ++++++++++++
 40130212009/rotateArray.js       | 18 ++++++++++++++++++
 3 files changed, 61 insertions(+)
 create mode 100644 40130212009/mergeSortedArrays.js
 create mode 100644 40130212009/removeDuplicates.js
 create mode 100644 40130212009/rotateArray.js

diff --git a/40130212009/mergeSortedArrays.js b/40130212009/mergeSortedArrays.js
new file mode 100644
index 0000000..46498b8
--- /dev/null
+++ b/40130212009/mergeSortedArrays.js
@@ -0,0 +1,31 @@
+function mergeSortedArrays(array1, array2) {
+  let counter1 = array1.length - 1;
+  let counter2 = array2.length - 1;
+  let counterMerge = array1.length + array2.length - 1;
+
+  array1.length = counterMerge + 1;
+
+  while (counter1 >= 0 && counter2 >= 0) {
+    if (array1[counter1] > array2[counter2]) {
+      array1[counterMerge] = array1[counter1];
+      counter1--;
+    } else {
+      array1[counterMerge] = array2[counter2];
+      counter2--;
+    }
+    counterMerge--;
+  }
+
+  while (counter2 >= 0) {
+    array1[counterMerge] = array2[counter2];
+    counter2--;
+    counterMerge--;
+  }
+
+  return array1;
+}
+
+let array1 = [3, 6, 8, 11];
+let array2 = [1, 4, 5, 7, 9, 10];
+mergeSortedArrays(array1, array2);
+console.log(array1);
diff --git a/40130212009/removeDuplicates.js b/40130212009/removeDuplicates.js
new file mode 100644
index 0000000..bd611a4
--- /dev/null
+++ b/40130212009/removeDuplicates.js
@@ -0,0 +1,12 @@
+function removeDuplicates(array) {
+  let lenOfArray = 0;
+  for (let i = 0; i < array.length; i++) {
+    if (array[i] !== array[i - 1]) {
+      lenOfArray++;
+    }
+  }
+  return lenOfArray;
+}
+
+let array = [1, 2, 2, 3, 3, 3, 4, 5];
+console.log(removeDuplicates(array));
diff --git a/40130212009/rotateArray.js b/40130212009/rotateArray.js
new file mode 100644
index 0000000..2827ba3
--- /dev/null
+++ b/40130212009/rotateArray.js
@@ -0,0 +1,18 @@
+function rotateArray(arr, k) {
+  let n = arr.length;
+  k = k % n;
+  let rotatedArr = new Array(n);
+  for (let i = 0; i < k; i++) {
+    rotatedArr[i] = arr[n - k + i];
+  }
+
+  for (let i = k; i < n; i++) {
+    rotatedArr[i] = arr[i - k];
+  }
+
+  return rotatedArr;
+}
+
+let array = [1, 2, 3, 4, 5];
+let k = 2;
+console.log(rotateArray(array, k));

From cedbc417d6a1844ce9bfa351f8c5a41f20031cd0 Mon Sep 17 00:00:00 2001
From: Amir-c-137 <trool.usiz@gmail.com>
Date: Sun, 28 Apr 2024 17:08:48 +0330
Subject: [PATCH 3/3] fix some stuff

---
 .DS_Store             | Bin 6148 -> 6148 bytes
 40130212009/.DS_Store | Bin 0 -> 6148 bytes
 Answers/How To.txt    |   3 ---
 3 files changed, 3 deletions(-)
 create mode 100644 40130212009/.DS_Store
 delete mode 100644 Answers/How To.txt

diff --git a/.DS_Store b/.DS_Store
index b16c1c28a86745c56db6afc6a76af47821cf829b..dc9ce7ede32164b6ebd47941118164a0f31b20da 100644
GIT binary patch
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GIT binary patch
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diff --git a/Answers/How To.txt b/Answers/How To.txt
deleted file mode 100644
index a4c6544..0000000
--- a/Answers/How To.txt	
+++ /dev/null
@@ -1,3 +0,0 @@
-put your answers in a folder.
-rename that folder to your student number.
-after finishing assignment, send a pull request to original repo
\ No newline at end of file