随笔分类 - LeetCode
摘要：Given an array of scores that are non negative integers. Player 1 picks one of the numbers from either end of the array followed by the player 2 and t
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摘要：Given a binary array, find the maximum number of consecutive 1s in this array. Example 1: Note: + The input array will only contain 0 and 1. + The len
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摘要：Given a positive integer, output its complement number. The complement strategy is to flip the bits of its binary representation. Note: + The given in
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摘要：In the computer world, use restricted resource you have to generate maximum benefit is what we always want to pursue. For now, suppose you are a domin
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摘要：Consider the string s to be the infinite wraparound string of “abcdefghijklmnopqrstuvwxyz”, so s will look like this: “…zabcdefghijklmnopqrstuvwxyzabc
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摘要：In the “100 game,” two players take turns adding, to a running total, any integer from 1..10. The player who first causes the running total to reach o
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摘要：You are given a map in form of a two dimensional integer grid where 1 represents land and 0 represents water. Grid cells are connected horizontally/ve
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摘要：The Hamming distance between two integers is the number of positions at which the corresponding bits are different. Given two integers x and y, calcul
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摘要：There are 1000 buckets, one and only one of them contains poison, the rest are filled with water. They all look the same. If a pig drinks that poison
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摘要：Assume you are an awesome parent and want to give your children some cookies. But, you should give each child at most one cookie. Each child i has a g
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摘要：Given a non empty integer array of size n, find the minimum number of moves required to make all array elements equal, where a move is incrementing n
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摘要：Given an array of integers where 1 ≤ a[i] ≤ n (n = size of array), some elements appear twice and others appear once. Find all the elements of [1, n]
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摘要：Given n points in the plane that are all pairwise distinct, a “boomerang” is a tuple of points (i, j, k) such that the distance between iand j equals
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摘要：Given a non empty array containing only positive integers, find if the array can be partitioned into two subsets such that the sum of elements in both
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摘要：Given two non negative integers num1 and num2 represented as string, return the sum of num1 and num2. Note: + The length of both num1 and num2 is =0;
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摘要：A sequence of number is called arithmetic if it consists of at least three elements and if the difference between any two consecutive elements is the
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摘要：Write a program that outputs the string representation of numbers from 1 to n. But for multiples of three it should output “Fizz” instead of the numbe
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摘要：Given a string which consists of lowercase or uppercase letters, find the length of the longest palindromes that can be built with those letters. This
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摘要：Find the sum of all left leaves in a given binary tree. Example:
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摘要：A binary watch has 4 LEDs on the top which represent the hours (0 11), and the 6 LEDs on the bottom represent the minutes (0 59). Each LED represents
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