C. Edo and Magnets Time Limit: 20 Sec Memory Limit: 256 MB 题目连接 http://codeforces.com/contest/594/problem/C Description Edo has got a collection of n refrigerator magnets! He decided to buy a refrigerator and hang the magnets on the door. The shop ca…

A. Vitaly and Night Time Limit: 20 Sec Memory Limit: 256 MB 题目连接 http://codeforces.com/contest/595/problem/A Description One day Vitaly was going home late at night and wondering: how many people aren't sleeping at that moment? To estimate, Vitaly de…

Codeforces Round #297 (Div. 2)D. Arthur and Walls Time Limit: 2 Sec  Memory Limit: 512 MBSubmit: xxx  Solved: 2xx 题目连接 http://codeforces.com/contest/525/problem/D Description Finally it is a day when Arthur has enough money for buying an apartment. H…

A. Warrior and Archer Time Limit: 20 Sec Memory Limit: 256 MB 题目连接 http://codeforces.com/contest/594/problem/A Description In the official contest this problem has a different statement, for which jury's solution was working incorrectly, and for this…

D. Max and Bike Time Limit: 20 Sec Memory Limit: 256 MB 题目连接 http://codeforces.com/contest/595/problem/D Description For months Maxim has been coming to work on his favorite bicycle. And quite recently he decided that he is ready to take part in a cy…

B. Pasha and Phone Time Limit: 20 Sec Memory Limit: 256 MB 题目连接 http://codeforces.com/contest/595/problem/B Description Pasha has recently bought a new phone jPager and started adding his friends' phone numbers there. Each phone number consists of ex…

题意: 这道英文题的题意稍稍有点复杂. 找长度为n的数字序列有多少种.这个序列可以分为n/k段,每段k个数字.k个数可以变成一个十进制的数Xi.要求对这每n/k个数,剔除Xi可被ai整除的情况,剔除X的第一个数(包括前导0)是bi的情况.问剩下的组合有多少种. 思路: 这题我是一波三折的.首先也没有考虑很多,看着可以暴力模拟过程,我就直接开始敲了,几个for循环敲出来,再把bug调一调和特殊情况考虑考虑,交了之后开始TLE,这时候意识到复杂度太大了,于是开始优化,做了(b[i])*(mmax/1…

题意:给你很多对数,要么是0要么是1.不全0则ans++. 思路即题意. #include<cstdio> #include<cstring> #include<iostream> using namespace std; #define MAX(x,y) (((x)>(y)) ? (x) : (y)) #define MIN(x,y) (((x) < (y)) ? (x) : (y)) #define ABS(x) ((x)>0?(x):-(x))…

C题题目出错了,unrating,2题就能有很好的名次,只能呵呵了. 水 A - Vitaly and Night /************************************************ * Author :Running_Time * Created Time :2015/11/8 星期日 22:41:11 * File Name :A.cpp ************************************************/ #include <b…

B. Pasha and Phone time limit per test 1 second memory limit per test 256 megabytes input standard input output standard output Pasha has recently bought a new phone jPager and started adding his friends' phone numbers there. Each phone number consis…