Code_KK的博客

大致题意：网球比赛，n个参赛者，每场比赛每位选手b瓶水+裁判1瓶水，全部比赛每个参赛者p条毛巾每一轮比赛有2^k个人参加比赛（k为2^k求所有比赛完成后所需要的水的数量和毛巾的数量

Little Susie loves strings. Today she calculates distances between them. As Susie is a small girl after all, her strings contain only digits zero and one. She uses the definition of Hamming distance:

DZY loves chessboard, and he enjoys playing with it.He has a chessboard of n rows and m columns. Some cells of the chessboard are bad, others are good. For every good cell, DZY wants to put a ches

DZY loves chemistry, and he enjoys mixing chemicals.DZY has n chemicals, and m pairs of them will react. He wants to pour these chemicals into a test tube, and he needs to pour them in one by one,

题目链接：http://codeforces.com/contest/651/problem/C题目大意：给出n个坐标，求存在（xi,yi）,(xj, yj) 使|xi-xj|+|yi-yj| = sqrt((xi-xj)*(xi-xj)+(yi-yj)*(yi-yj))的组数方法：等式两边平方，化简得只要两个点存在同一列或同一行就可以符合上述等式#include using na

B. Far Relative’s Problemtime limit per test2 secondsmemory limit per test256 megabytesinputstandard inputoutputstandard outputFamil Door wants to celebrate his

大致题意：给出一个n*n的矩阵，求有多少对C在同一行或同一列方法：遍历每一行，求出每一行中C的数量，然后利用组合数学的排列组合求出方案数遍历每一列，同上。。。。。A. Far Relative’s Birthday Caketime limit per test1 secondmemory limit per test256 mega

A. Again Twenty Five!time limit per test0.5 secondsmemory limit per test64 megabytesinputstandard inputoutputstandard outputThe HR manager was disappointed agai

D. Hexagons!time limit per test0.5 secondsmemory limit per test64 megabytesinputstandard inputoutputstandard outputAfter a probationary period in the game devel

大致题意：给出一串数，从中找出连续的字串，求能够整除4的字串的个数方法：从后往前遍历如果一个数的后两位能被4整除，则这个数就是4的倍数#include using namespace std;char str[10000000];int main(){ while(~scanf("%s",str)) { long long ant

Little Susie, thanks to her older brother, likes to play with cars. Today she decided to set up a tournament between them. The process of a tournament is described in the next paragraph.There are n