算法题

Record of my solutions and thoughts to algorithm problems.

LeetCode

Problems Solutions Topic Difficulty
3 Longest Substring Without Repeating Characters C++ Hash Table Two Pointer Medium
5 Longest Palindromic Substring C++ Two Pointer Medium
6 ZigZag Conversion C++ String Medium
7 Reverse Integer C++ Math Easy
8 String to Integer (atoi) C++ String Simulation Medium
9 Palindrome Number C++ Math Easy
10 Regular Expression Matching C++ String Dynamic Programming Hard
11 Container With Most Water C++ Array Two Pointer Medium
12 Integer to Roman C++ Math HashMap Medium
13 Roman to Integer C++ Math HashMap Easy
14 Longest Common Prefix C++ String Easy
15 3Sum C++ Array Two Pointers Medium
16 3Sum Closest C++ Array Two Pointers Medium
17 Letter Combinations of a Phone Number C++ Array Backtracking Medium
19 Remove Nth Node From End of List C++ Linked List Two Pointers Medium
37 Sudoku Solver C++ Hard
51 N-Queens C++ Hard
100 Same Tree C++ Easy
709 To Lower Case C++ Easy
771 Jewels and Stones C++ Easy
929 Unique Email Address C++ Easy
961 N-Repeated Element in Size 2N Array C++ Easy

POJ

Codes of Analysis of Algorithms Course

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