Codeforces Round #809 (Div. 2) 2022/7/19 下午VP 传送门:https://codeforces.com/contest/1706 A. Another String Minimization Problem #include <bits/stdc++.h> #define int long long const int N = 1e5 + 10; int a[N]; signed main() { std::ios::sync_with_stdio(f…

刷题备忘录,for bug-free 招行面试题--求无序数组最长连续序列的长度,这里连续指的是值连续--间隔为1,并不是数值的位置连续 问题: 给出一个未排序的整数数组,找出最长的连续元素序列的长度. 如: 给出[100, 4, 200, 1, 3, 2], 最长的连续元素序列是[1, 2, 3, 4].返回它的长度:4. 你的算法必须有O(n)的时间复杂度 . 解法: 初始思路 要找连续的元素,第一反应一般是先把数组排序.但悲剧的是题目中明确要求了O(n)的时间复杂度,要做一次排序,是不能达…

[BZOJ1001]狼抓兔子 1001: [BeiJing2006]狼抓兔子 Time Limit: 15 Sec  Memory Limit: 162 MBSubmit: 18872  Solved: 4647[Submit][Status][Discuss] Description 现在小朋友们最喜欢的"喜羊羊与灰太狼",话说灰太狼抓羊不到,但抓兔子还是比较在行的, 而且现在的兔子还比较笨,它们只有两个窝,现在你做为狼王,面对下面这样一个网格的地形: 左上角点为(1,1),右下角点…

E. Connected Components? time limit per test 2 seconds memory limit per test 256 megabytes input standard input output standard output You are given an undirected graph consisting of n vertices and  edges. Instead of giving you the edges that exist i…

A. Olympiad time limit per test 1 second memory limit per test 256 megabytes input standard input output standard output The recent All-Berland Olympiad in Informatics featured n participants with each scoring a certain amount of points. As the head…

接着是C,D的题解 C. Tourist Problem Iahub is a big fan of tourists. He wants to become a tourist himself, so he planned a trip. There are n destinations on a straight road that Iahub wants to visit. Iahub starts the excursion from kilometer 0. The n destina…

Problem F. Grab The Tree Time Limit: 2000/1000 MS (Java/Others)    Memory Limit: 524288/524288 K (Java/Others) Total Submission(s): 2004    Accepted Submission(s): 911 Problem Description Little Q and Little T are playing a game on a tree. There are …

300iq Contest 1 简要题解 咕咕咕 codeforces A. Angle Beats description 有一张\(n\times m\)的方阵,每个位置上标有*,+,.中的一种.你要用尽可能多的\(I\)型和\(L\)型覆盖这个方阵(均占恰好\(3\)个位置),要求\(I\)型中间那个位置必须是+,\(L\)型中间那个位置必须是*或者+,两者非中间的两个位置必须都是.. \(1 \le n, m \le 100.\) solution 由于某种原因,这道题咕咕咕了. B.…

2019 秋季 PAT (Advanced Level) C++题解 考试拿到了满分但受考场状态和知识水平所限可能方法不够简洁,此处保留记录,仍需多加学习.备考总结(笔记目录)在这里 7-1 Forever (20 分) "Forever number" is a positive integer A with K digits, satisfying the following constrains: the sum of all the digits of A is m; the…

目录 注意!!此题解存在大量假算法,请各位巨佬明辨! Problem A Digits Are Not Just Characters 题面 题意 思路 代码 Problem B Arithmetic Progressions 题面 代码 Problem C Emergency Evacuation 题意 题解 代码 Problem D Shortest Common Non-Subsequence 题面 代码 Problem E Eulerian Flight Tour Problem G W…