LchinaM的博客_leetcode

292. Nim Game

You are playing the following Nim Game with your friend: There is a heap of stones on the table, each time one of youmoves the last stone will be the

Game

Nim

原创 2023-09-05 09:28:26 25 阅读

258. Add Digits

Given a non-negative integer num, repeatedly add all its digits until the result has only one digit. + 8 = 11, 1 + 1 = 2. Since 2 has on

git

原创 2023-09-05 09:28:23 0 阅读

LeetCode 15. 3Sum

Given an array S of n integers, are there elements a, b, c in S such that a + b + c = 0? Find all unique triplets in the array which gives the sum of zero.

List

i++

原创 2023-09-05 09:27:56 33 阅读

LeetCode 100. Same Tree

Given two binary trees, write a function to check if they are equal or not.

ide

原创 2023-09-05 09:27:52 43 阅读

263. Ugly Number

Write a program to check whether a given number is an ugly number.Ugly numbers are positive numbers whose prime factors only inclu

系统

原创 2023-09-05 09:26:32 44 阅读

202. Happy Number

Write an algorithm to determine if a number is "happy".A happy number is a number defined by the following process: Starting

#include

git

原创 2023-09-05 09:26:28 51 阅读

LeetCode 1. two sum

Given an array of integers, return indices of the two numbers such that they add up to a specifolution, and you may not use the sam

系统

原创 2023-09-05 09:24:25 42 阅读

LeetCode 5. Longest Palindromic Substring

Given a string s, find the longest palindromic substring in s. You may assume that the maximu Input: "babad" Output: "bab" Note: "aba" is also a valid answer.

系统

原创 2023-09-05 09:24:21 72 阅读

LeetCode 22. Generate Parentheses

Given n pairs of parentheses, write a function to generate all

系统

原创 2023-09-05 09:24:15 92 阅读

LeetCode 34. Search for a Range

Given an array of integers sorted in ascending order, find the starting and ending position of a given target value. If the

i++

原创 2023-09-05 09:23:44 47 阅读

LeetCode 43. Multiply Strings

Given two non-negative integers num1 and num2 represented

git

原创 2023-09-05 09:23:41 53 阅读

LeetCode 2. Add Two Numbers

You are given two non-empty linked lists representing two non-negative integers. The digits are stored in reverse order and each of their nodes contain a singmbers and return i

git

原创 2023-09-05 09:22:47 47 阅读

LeetCode 3. Longest Substring Without Repeating Characters

Given a string, find the length of the longest substring without repeating characters.

bc

原创 2023-09-05 09:22:40 57 阅读

LeetCode 6. ZigZag Conversion

The string "PAYPALISHIRING" is written in a zigzag pattern on a given number of rows like this: (you may want to display this pattern in a fixed font for better legibility)

系统

原创 2023-09-05 09:22:36 72 阅读

LeetCode 11. Container With Most Water

Given n non-negative integers a1, a2,

系统

原创 2023-09-05 09:22:31 47 阅读

LeetCode 8. String to Integer (atoi)

Implement atoi to convert a string to an integer. Hint: Carefully consider all possible input cases. If you want a challenge, please do not see below and ask yourself what are the possible input ca

ide

git

原创 2023-09-05 09:22:26 60 阅读

LeetCode 12. Integer to Roman

Given an integer, convert it to a roman numeral.

XC

原创 2023-09-05 09:22:20 43 阅读

LeetCode 16. 3Sum Closest

Given an array S of n integers, find three integers in S such that the sum is closest to a given number, target. Return the sum of the three integers. You may assume that each input would have exac

系统

原创 2023-09-05 09:22:15 53 阅读

LeetCode 17. Letter Combinations of a Phone Number

Given a digit string, return all possible letter combinations that the number could represent.

git

bc

原创 2023-09-05 09:22:11 58 阅读

LeetCode 46. Permutations

Given a collection of distinct numbers, return all possible permutations.

系统

原创 2023-09-05 09:22:06 57 阅读

LeetCode 19. Remove Nth Node From End of List

Given a linked list, remove the nth node from the end of list and return its head. After removing the second node from the end, the

系统

原创 2023-09-05 09:21:54 52 阅读

LeetCode 18. 4Sum

Given an array S of n integers, are there elements a, b, c, and d in S such that a + b + c + d = target? Find all unique quadruplets in the array which gives the sum of target.

系统

原创 2023-09-05 09:21:50 54 阅读

LeetCode 24. Swap Nodes in Pairs

Given a linked list, swap every two adjacent nodes and return its head.

系统

原创 2023-09-05 09:21:45 44 阅读

LeetCode 33. Search in Rotated Sorted Array

Suppose an array sorted in ascending order is rotated at some pivot unknown to you beforehand. You are given a target value to search. If foun

系统

原创 2023-09-05 09:21:38 48 阅读

LeetCode 31. Next Permutation

Implement next permutation, which rearranges numbers into the lexicographically next greater permutation of numbers

ico

原创 2023-09-05 09:21:33 56 阅读

LeetCode 61. Rotate List

Given a list, rotate the list to the right by k places, where k is non-negative. return 4->5->1->2->3->NULL. answer: class Solution { public:

系统

原创 2023-09-05 09:21:30 35 阅读

LeetCode 39. Combination Sum

Given a set of candidate numbers (C) (without duplicates) and a target number (T), find all unique combinations in C where the candidate numbers sums to T.

系统

原创 2023-09-05 09:21:26 53 阅读

LeetCode 40. Combination Sum II

Given a collection of candidate numbers (C) and a target number (T), find all unique combinations in C where

sed

原创 2023-09-05 09:21:18 64 阅读

LeetCode 54. Spiral Matrix

Given a matrix of m x n elements (m rows, n columns), return all elements of the matri

系统

原创 2023-09-05 09:21:14 44 阅读

LeetCode 75. Sort Colors

Given an array with n objects colored red, white or blue, sort them so that objects of the same color a

系统

原创 2023-09-05 09:21:07 41 阅读

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