Given two words word1 and word2, find the minimum number of steps required to make word1 and word2 the same, where in each step you can delete one cha ...
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其他好文 时间：
2020-07-28 14:04:15
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77
题目描述 Roundgod is given n,k,construct a permutation P of 1~n satisfying that for all integers i in [1,n],there exists a contiguous subarray in P of len ...
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2020-07-28 00:18:40
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75
Given the root of a binary tree and an integer distance. A pair of two different leaf nodes of a binary tree is said to be good if the length of the s ...
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其他好文 时间：
2020-07-27 15:58:17
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93
Given an array of positive integers target and an array initial of same size with all zeros. Return the minimum number of operations to form a target ...
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其他好文 时间：
2020-07-27 15:38:31
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66
题目来源： http://codeforces.com/problemset/problem/122/A Petya loves lucky numbers. Everybody knows that lucky numbers are positive integers whose decimal ...
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其他好文 时间：
2020-07-27 13:40:27
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64
题意 给你两个长度为 \(n\) 的串 \(a,b\) 求 \(a,b\) 两序列各任取一数相加形成的$n^2$个和的异或和 $1 \le n \le 2 \times 10^5$ $0 \le a_i \le 2^{28}$ 传送门 思路 按位考虑。对于第$i$位，令 \(x=2^i\)，所有数对 ...
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其他好文 时间：
2020-07-26 22:51:31
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66
Given an array of integers A with even length, return true if and only if it is possible to reorder it such that A[2 * i + 1] = 2 * A[2 * i] for every ...
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编程语言 时间：
2020-07-26 19:14:18
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72
题目链接 https://leetcode-cn.com/problems/merge-two-binary-trees/ 题解 递归解法 解法见代码注释 // Problem: LeetCode 617 // URL: https://leetcode-cn.com/problems/merge- ...
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2020-07-26 01:03:49
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54
##题面 he length of the longest common prefix of two strings s=s1s2…sn and t=t1t2…tm is defined as the maximum integer k (0≤k≤min(n,m)) such that s1s2…s ...
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其他好文 时间：
2020-07-26 00:15:56
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106
Given an array of words and a width maxWidth, format the text such that each line has exactly maxWidth characters and is fully (left and right) justif ...
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其他好文 时间：
2020-07-25 09:35:28
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71
