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题目Given an array nums, write a function to move all 0’s to the end of it while maintaining the relative order of the non-zero elements.For ex... 阅读全文
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题目Given an array nums containing n + 1 integers where each integer is between 1 and n (inclusive), prove that at least one duplicate number m... 阅读全文
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题目Given a pattern and a string str, find if str follows the same pattern.Here follow means a full match, such that there is a bijection betwe... 阅读全文
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题目Given two strings s and t, determine if they are isomorphic.Two strings are isomorphic if the characters in s can be replaced to get t.All ... 阅读全文
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题目Given a 2d grid map of ‘1’s (land) and ‘0’s (water), count the number of islands. An island is surrounded by water and is formed by connect... 阅读全文
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题目Given an array of integers, find out whether there are two distinct indices i and j in the array such that the difference between nums[i] a... 阅读全文
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题目Given an array of integers and an integer k, find out whether there are two distinct indices i and j in the array such that nums[i] = nums[... 阅读全文
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题目Given a sorted integer array without duplicates, return the summary of its ranges.For example, given [0,1,2,4,5,7], return [“0->2”,”4->5”,”... 阅读全文
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