README.md

Daily Coding Problems C++

A curated collection of C++17 solutions for Daily Coding Problem interview prompts. The repository is organized to stay readable for a small set of problems while scaling cleanly to hundreds of solutions.

Project Overview

Each problem lives in its own folder, grouped by difficulty and named with the pattern <problem-number>-<title-in-kebab-case>. Every problem folder contains a standalone README.md and solution.cpp file.

Repository Structure

• easy/ contains solved easy problems, grouped by folder name and problem number.
• medium/ contains medium-difficulty problems using the same folder convention.
• hard/ contains hard-difficulty problems using the same folder convention.
• Each problem folder contains a README.md with the statement, approach, run instructions, and complexity, plus a solution.cpp file with the implementation.

Problem Index

#	Problem	Difficulty	Topics	Solution
1223	Tree Depth From Encoding	🔴 Hard	Trees, Recursion, Parsing	solution.cpp
1233	RGB Segregation	🔴 Hard	Arrays, Two Pointers, Greedy	solution.cpp
1240	Gray Code	🟡 Medium	Bit Manipulation, Recursion	solution.cpp
1241	Find Celebrity	🟡 Medium	Graphs, Greedy	solution.cpp
1242	Word Ladder	🟡 Medium	Graphs, BFS	solution.cpp
1244	Rescue Boats	🟡 Medium	Arrays, Greedy, Two Pointers	solution.cpp
1245	Text Justification	🟡 Medium	Strings, Greedy	solution.cpp
1247	Sorted Squares	🟢 Easy	Arrays, Two Pointers	solution.cpp
1243	Shift String	🟢 Easy	Strings, Two Pointers	solution.cpp
1248	Substring Concatenation of All Words	🟡 Medium	Strings, Hash Table, Sliding Window	solution.cpp
1249	Valid Binary Search Tree	🟡 Medium	Trees, Recursion	solution.cpp
1250	Palindrome Permutation	🟢 Easy	Strings, Hash Table	solution.cpp
1252	Clock Angle	🟢 Easy	Math, Strings	solution.cpp
1254	Minimum Stabbing Points	🔴 Hard	Greedy, Sorting, Intervals	solution.cpp