http://codeforces.com/contest/1092/problem/D2 Vova's family is building the Great Vova Wall (named by Vova himself). Vova's parents, grandparents, grand-grandparents contributed to it. Now it's totally up to Vova to put the finishing touches. The cur…

http://codeforces.com/contest/1092/problem/D1 Vova's family is building the Great Vova Wall (named by Vova himself). Vova's parents, grandparents, grand-grandparents contributed to it. Now it's totally up to Vova to put the finishing touches. The cur…

传送门:http://codeforces.com/contest/1092/problem/D2 D2. Great Vova Wall (Version 2) time limit per test 2 seconds memory limit per test 256 megabytes input standard input output standard output Vova's family is building the Great Vova Wall (named by Vo…

http://codeforces.com/contest/1092/problem/B There are nn students in a university. The number of students is even. The ii-th student has programming skill equal to aiai. The coach wants to form n2n2 teams. Each team should consist of exactly two stu…

http://codeforces.com/contest/1092/problem/C Ivan wants to play a game with you. He picked some string ss of length nn consisting only of lowercase Latin letters. You don't know this string. Ivan has informed you about all its improper prefixes and s…

http://codeforces.com/contest/1092/problem/A You are given two integers nn and kk. Your task is to construct such a string ss of length nn that for each ii from 11 to kk there is at least one ii-th letter of the Latin alphabet in this string (the fir…

题意: 给一排砖,每列的高度$a_i$,问是否可以放1*2的砖,使得n列高度一样,砖只能横着放 思路: 每两个相邻的高度相同的砖可以变成大于等于它的高度的任意高度 所以像这样的 123321 是不满足题意的,因为两边的相同的高度没法合在一起 只有像这样的 321123 才满足 所以,满足题意的墙应该像上述一样几个“凹”的高度的组合加上最多一列高度为h的墙 这个h应该满足h<=max(a),准确来说应该是等于 拿栈搞一搞就行了 代码: #include<iostream> #include…

l链接 [https://codeforces.com/contest/1092/problem/D2] 题意 和D1一样只是不能竖直放了 分析 水平放的话,就只可能是相邻等时才可以,而且你会发现 只有中间数字小于两边的才可以 比如551122是可以的,15522不可以,你用一个栈保存当前不能改变高度的位置 如果遇到相等的就出栈,具体看代码体会吧 代码 #include<bits/stdc++.h> using namespace std; int main(){ int n,h; //fre…

Codeforces Round #527 (Div. 3) 题解 题目总链接:https://codeforces.com/contest/1092 A. Uniform String 题意: 输入n,k,n表示字符串的长度,k表示从1-k的小写字符(1即是a),现在要求最大化最少字符的数量. 题解: 贪心搞一搞就行了. 代码如下: #include <bits/stdc++.h> using namespace std; int T; int n,k; int main(){ cin>…

一场div3... 由于不计rating,所以打的比较浪,zhy直接开了个小号来掉分,于是他AK做出来了许多神仙题,但是在每一个程序里都是这么写的: 但是..sbzhy每题交了两次,第一遍都是对的,结果就涨了.. A - Uniform String 没什么意思.. #include<cstdio> #include<cstring> #include<algorithm> #include<queue> #include<set> #inclu…