Given a non-negative integer num, repeatedly add all its digits until the result has on...
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Leetcode258---Add Digits
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leetcode8---String to Integer (atoi)
Implement atoi to convert a string to an integer.Hint: Carefully consider all possible ...
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leetcode7---Reverse Integer
Reverse digits of an integer.Example1: x = 123, return 321Example2: x = -123, return -3...
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leetcode6---ZigZag Conversion
The string "PAYPALISHIRING" is written in a zigzag pattern on a given number of rows li...
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leetcode5---Longest Palindromic Substring
Given a string s, find the longest palindromic substring in s. You may assume that the ...
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leetcode4---Median of Two Sorted Arrays
There are two sorted arrays nums1 and nums2 of size m and n respectively. Find the medi...
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leetcode3---Longest Substring Without Repeating Characters
Given a string, find the length of the longest substring without repeating characters. ...
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leetcode2---Add Two Numbers
You are given two non-empty linked lists representing two non-negative integers. The di...
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leetcode1---Two Sum
Given an array of integers, return indices of the two numbers such that they add up to ...
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