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全部文章（共613篇）

D. Vasya and Chess

链接：https://codeforces.com/problemset/problem/493/D Vasya decided to learn to play chess. Classic chess doesn't seem interesting to him, so he plays h...

2020-05-28

0 433

A. Next Test

链接：https://codeforces.com/problemset/problem/27/A «Polygon» is a system which allows to create programming tasks in a simple and professional way. Wh...

2020-05-28

0 478

A. Mafia

链接：https://codeforces.com/problemset/problem/348/A One day n friends gathered together to play "Mafia". During each round of the game some ...

2020-05-28

0 657

C. Number of Ways

链接：https://codeforces.com/contest/466/problem/C You've got array a[1], a[2], ..., a[n], consisting of n integers. Count the number of ways to split a...

2020-05-28

0 341

D. Zero Quantity Maximization

链接：https://codeforces.com/problemset/problem/1133/D You are given two arrays aa and bb, each contains nn integers. You want to create a new array cc...

2020-05-28

0 521

B. Kefa and Company

链接：https://codeforces.com/problemset/problem/580/B Kefa wants to celebrate his first big salary by going to restaurant. However, he needs company. K...

2020-05-28

0 687

A. Vasya and Petya's Game

链接：https://codeforces.com/problemset/problem/576/A Vasya and Petya are playing a simple game. Vasya thought of number x between 1 and n, and Petya tr...

2020-05-28

0 322

A. Alice and Bob

链接：https://codeforces.com/contest/346/problem/A It is so boring in the summer holiday, isn't it? So Alice and Bob have invented a new game to play. T...

2020-05-28

0 386

D. 1-2-K Game

链接：https://codeforces.com/contest/1194/problem/D Alice and Bob play a game. There is a paper strip which is divided into n + 1 cells numbered from le...

2020-05-28

0 380

A. Gerald's Hexagon

链接：https://codeforces.com/problemset/problem/559/A Gerald got a very curious hexagon for his birthday. The boy found out that all the angles of the h...

2020-05-28

0 421