E - Polycarp and Snakes 题意:在一个全是点的图上开始画线,每次将一行或一列任意长度染成字母,一笔染一种字母,字母必须从a开始连续到后面某个字母可以覆盖. 问所给图案是否满足 ,若满足输出它画了几个字母,然后输出这每个字母开始和截止画的横纵坐标. 思路:存图,模拟,用个x1,x2,y1,y2记录每个字母出现位置的最小最大的横纵坐标,对于每个字母如果它的x1,x2,y1,y2不是初始值的话,那么它在图上就出现过(没有被覆盖掉),那么这个字母必然满足,x1==x2||y1==y…

A.B 略,相信大家都会做 ^_^ C. Exam in BerSU 题意 给你一个长度为 \(n\) 的序列 \(a_i\) .对于每个 \(i\in [1,N]\) 求 \([1,i-1]\) 中删去至少多少个数能满足剩余 \([1,i]\) 中数的和小于 \(M\) . \(n\le 2\cdot 10^5, M\le 2\cdot 10^7, a_i\le 100\) . Solution 看到值域 \(\le 100\) ,直接用桶记每个数出现多少次,然后从大到小暴力扫一遍桶就做完了.…

Polycarp is a music editor at the radio station. He received a playlist for tomorrow, that can be represented as a sequence a1, a2, ..., an, where ai is a band, which performs the i-th song. Polycarp likes bands with the numbers from 1 to m, but he d…

Description Polycarp is a music editor at the radio station. He received a playlist for tomorrow, that can be represented as a sequence a1, a2, ..., an, where ai is a band, which performs the i-th song. Polycarp likes bands with the numbers from 1 to…

C. Polycarp at the Radio time limit per test: 2 seconds memory limit per test: 256 megabytes input: standard input output: standard output Polycarp is a music editor at the radio station. He received a playlist for tomorrow, that can be represented a…

C. Polycarp at the Radio time limit per test 2 seconds memory limit per test 256 megabytes input standard input output standard output Polycarp is a music editor at the radio station. He received a playlist for tomorrow, that can be represented as a…

题目链接: 题目 F. Polycarp and Hay time limit per test: 4 seconds memory limit per test: 512 megabytes input: standard input output: standard output 问题描述 The farmer Polycarp has a warehouse with hay, which can be represented as an n × m rectangular table,…

同swustoj 8 Snakes Time Limit: 1000MS   Memory Limit: 65536K Total Submissions: 1015   Accepted: 341 Description Buffalo Bill wishes to cross a 1000x1000 square field. A number of snakes are on the field at various positions, and each snake can strike…

题目链接:http://poj.org/problem?id=2588 Snakes Time Limit: 1000MS   Memory Limit: 65536K   Description Buffalo Bill wishes to cross a 1000x1000 square field. A number of snakes are on the field at various positions, and each snake can strike a particular…

Polycarp's problems time limit per test 2 seconds memory limit per test 256 megabytes input standard input output standard output Polycarp is an experienced participant in Codehorses programming contests. Now he wants to become a problemsetter. He se…

B. Polycarp and Letters time limit per test 2 seconds memory limit per test 256 megabytes input standard input output standard output Polycarp loves lowercase letters and dislikes uppercase ones. Once he got a string s consisting only of lowercase an…

Description Polycarp loves lowercase letters and dislikes uppercase ones. Once he got a string s consisting only of lowercase and uppercase Latin letters. Let A be a set of positions in the string. Let's call it pretty if following conditions are met…

Polycarp has recently got himself a new job. He now earns so much that his old wallet can't even store all the money he has. Berland bills somehow come in lots of different sizes. However, all of them are shaped as rectangles (possibly squares). All…

1151 - Snakes and Ladders Time Limit: 2 second(s)    Memory Limit: 32 MB 'Snakes and Ladders' or 'Shap-Ludu' is a game commonly played in Bangladesh. The game is so common that it would be tough to find a person who hasn't played it. But those who ha…

861D - Polycarp's phone book 思路:用map做的话,只能出现一次循环,否则会超时. 代码: #include<bits/stdc++.h> using namespace std; #define f first #define s second #define pb push_back #define mp make_pair map<string,int> ma; ]; int main(){ int n; string s,nu; cin>&…

SNAKES : A A Flexible High-Level Petri Nets Library SNAKES是python一个可以用于Petri网的库 python2安装SNAKES库:  在cmd命令行中输入 pip install snakes (此处需要设置了全局变量才可以直接这样 否则需要先进入python2的安装目录) python3安装SNAKES库: 由于python2和python3有了细微的区别,pip install snakes 安装的库在python3中使用会出现…

D. Polycarp's Picture Gallery time limit per test 2 seconds memory limit per test 256 megabytes input standard input output standard output Polycarp loves not only to take pictures, but also to show his photos to friends. On his personal website he h…

Description Polycarp loves lowercase letters and dislikes uppercase ones. Once he got a string s consisting only of lowercase and uppercase Latin letters. Let A be a set of positions in the string. Let's call it pretty if following conditions are met…

F. Polycarp and Hay 题目连接: http://www.codeforces.com/contest/659/problem/F Description The farmer Polycarp has a warehouse with hay, which can be represented as an n × m rectangular table, where n is the number of rows, and m is the number of columns…

今天佛了,魔鬼周一,在线教学,有点小累,但还好,今天AC了一道,每日一道,还好达成目标,还以为今天完不成了,最近任务越来越多,如何高效完成该好好思考一下了~最重要的还是学业的复习和预习. 今日兴趣新闻: <流浪地球>中的逃生气囊球和马斯克有什么关系? 链接:https://mbd.baidu.com/newspage/data/landingsuper?context=%7B%22nid%22%3A%22news_8599496962815210358%22%7D&n_type=0&a…

Polycarp is practicing his problem solving skill. He has a list of n problems with difficulties a1,a2,-,an, respectively. His plan is to practice for exactly k days. Each day he has to solve at least one problem from his list. Polycarp solves the pro…

Snakes and Ladders LightOJ - 1151 题意: 有100个格子,从1开始走,每次抛骰子走1~6,若抛出的点数导致走出了100以外,则重新抛一次.有n个格子会单向传送到其他格子,tp[i]表示从i传送到tp[i]. 1和100不会有传送,一个格子也不会有两种传送.问走到100的期望值. \(dp[i]\)表示从格子i走出去的期望次数 分两种情况考虑 格子不可以传送 \(dp[i] = \frac{1}{6} \cdot \sum_{j=1}^{k}dp[i+j] + \…

Polycarp has nn coins, the value of the ii-th coin is aiai. Polycarp wants to distribute all the coins between his pockets, but he cannot put two coins with the same value into the same pocket. For example, if Polycarp has got six coins represented a…

题目链接:https://vjudge.net/problem/LightOJ-1151 1151 - Snakes and Ladders    PDF (English) Statistics Forum Time Limit: 2 second(s) Memory Limit: 32 MB 'Snakes and Ladders' or 'Shap-Ludu' is a game commonly played in Bangladesh. The game is so common th…

题目链接: F. Polycarp and Hay time limit per test 4 seconds memory limit per test 512 megabytes input standard input output standard output The farmer Polycarp has a warehouse with hay, which can be represented as an n × m rectangular table, where n is t…

链接 Codeforces 659F Polycarp and Hay 题意 一个矩阵,减小一些数字的大小使得构成一个连通块的和恰好等于k,要求连通块中至少保持一个不变 思路 将数值从小到大排序,按顺序把与其相邻的加到并查集中.记录当前并查集中的个数,如果当前值能被K整除且总和超过了K,那么就可以以该点为中心输出了. 代码 #include <iostream> #include <cstdio> #include <vector> #include <stack…

time limit per test2 seconds memory limit per test256 megabytes inputstandard input outputstandard output Polycarp is a music editor at the radio station. He received a playlist for tomorrow, that can be represented as a sequence a1, a2, -, an, where…

time limit per test4 seconds memory limit per test512 megabytes inputstandard input outputstandard output The farmer Polycarp has a warehouse with hay, which can be represented as an n × m rectangular table, where n is the number of rows, and m is th…

Polycarp and Div 3 time limit per test 3 seconds memory limit per test 256 megabytes input standard input output standard output Polycarp likes numbers that are divisible by 3. He has a huge number ss. Polycarp wants to cut from it the maximum number…

Codeforces Round #606 (Div. 2, based on Technocup 2020 Elimination Round 4) A. Happy Birthday, Polycarp! time limit per test 1 second memory limit per test 256 megabytes input standard input output standard output Hooray! Polycarp turned nn years old…