D. Divide by three, multiply by two time limit per test 1 second memory limit per test 256 megabytes input:standard input output:standard output Polycarp likes to play with numbers. He takes some integer number x, writes it down on the board, and the…
A. Lesha and array splitting time limit per test:2 seconds memory limit per test:256 megabytes input:standard input output:standard output One spring day on his way to university Lesha found an array A. Lesha likes to split arrays into several parts.…
题目链接:http://codeforces.com/problemset/problem/752/C time limit per test 2 seconds memory limit per test 256 megabytes input standard input output standard output Santa Claus has Robot which lives on the infinite grid and can move along its lines. He…
What-The-Fatherland is a strange country! All phone numbers there are strings consisting of lowercase English letters. What is double strange that a phone number can be associated with several bears! In that country there is a rock band called CF con…
题目链接: E. Beautiful Subarrays time limit per test 3 seconds memory limit per test 512 megabytes input standard input output standard output One day, ZS the Coder wrote down an array of integers a with elements a1, a2, ..., an. A subarray of the arr…
Problem Description On the way to school, Karen became fixated on the puzzle game on her phone! The game is played as follows. In each level, you have a grid with n rows and m columns. Each cell originally contains the number 0. One move consists of…
题意:给出一个边数为n的等边多边形,问是否可以变成m的等边多边形.条件是同一个中心,共用原顶点. 解析:直接n%m==0即可,这样就是平分了.签到题没得说了. #include<iostream> #include<cstdio> #include<cstring> #include<cmath> #include<map> using namespace std; typedef long long ll; const int maxn=1e4…
C. Memory and De-Evolution time limit per test 2 seconds memory limit per test 256 megabytes input standard input output standard output Memory is now interested in the de-evolution of objects, specifically triangles. He starts with an equilateral tr…
