#include <iostream> #include<cstdio> #include<cstring> using namespace std; unsigned int r,sum,p,q; unsigned ][]; unsigned gcd(unsigned a,unsigned b) { return b?gcd(b,a%b):a; } /*哈希链表*/ ; int head[HASH],next1[HASH]; int hash1(unsigned in…

描述:红黑袜子,给出的是红袜子被选到的概率,即为p/q,要计算的是在挑选出一对红袜子之前的红袜子和黑袜子的数目,假设红袜子数为n,黑袜子数为m,那么n(n-1)/(m(m-1))=p/q,求出红袜子数和黑袜子数即可 #include<cstdio> #include <cmath> #define LL long long LL gcd(LL x,LL y) { if(x%y==0) return y; else return gcd(y,x%y); } int main() {…

题目 Volume 0. Getting Started 开始10055 - Hashmat the Brave Warrior 10071 - Back to High School Physics 10300 - Ecological Premium 458 - The Decoder 494 - Kindergarten Counting Game 414 - Machined Surfaces 490 - Rotating Sentences 445 - Marvelous Mazes…

各种杂题,水题,模拟,包括简单数论. 1001 A+B 1002 A+B+C 1009 Fat Cat 1010 The Angle 1011 Unix ls 1012 Decoding Task 1019 Grandpa's Other Estate 1034 Simple Arithmetics 1036 Complete the sequence! 1043 Maya Calendar 1054 Game Prediction 1057 Mileage Bank 1067 Rails 10…

A. Vasya the Hipster Time Limit: 1 Sec Memory Limit: 256 MB 题目连接 http://codeforces.com/contest/581/problem/A Description One day Vasya the Hipster decided to count how many socks he had. It turned out that he had a red socks and b blue socks. Accordi…

One day Vasya the Hipster decided to count how many socks he had. It turned out that he had a red socks and b blue socks. According to the latest fashion, hipsters should wear the socks of different colors: a red one on the left foot, a blue one on t…

One day Vasya the Hipster decided to count how many socks he had. It turned out that he had a red socks and b blue socks. According to the latest fashion, hipsters should wear the socks of different colors: a red one on the left foot, a blue one on t…

Division 紫书入门级别的暴力,可我还是写了好长时间 = = [题目链接]uva 725 [题目类型]化简暴力 &题解: 首先要看懂题意,他的意思也就是0~9都只出现一遍,在这2个5位数中. 接着,你要知道:枚举一个5位数就够了,不用2个5位数都枚举,因为你可以通过n知道第2个5位数. 最后set维护出现的次数,ok判断是否可行,pri输出. [时间复杂度]O(1e5) &代码: #include <bits/stdc++.h> using namespace std;…

Cube painting Problem Description: We have a machine for painting cubes. It is supplied with three different colors: blue, red and green. Each face of the cube gets one of these colors. The cube's faces are numbered as in Figure 1. Figure 1. Since a…

"Waiting for orders we held in the wood, word from the front never came By evening the sound of the gunfire was miles away Ah softly we moved through the shadows, slip away through the trees Crossing their lines in the mists in the fields on our hand…