题意:a,b,c三种球,能把俩个一样的球变成另一颜色不一样的球.给你目标x,y,z,问能否经过变化至少达打目标. #include<iostream> #include<stdio.h> #include<stdlib.h> #include<memory.h> #include<string.h> #include<algorithm> #include<cmath> ; ; using namespace std; i…

水题 /* *********************************************** Author :Zhou Zhentao Email :774388357@qq.com Created Time :2015/12/15 12:45:27 File Name :main.cpp ************************************************ */ #include <stdio.h> #include <string.h>…

A. Magic Spheres   Carl is a beginner magician. He has a blue, b violet and c orange magic spheres. In one move he can transform two spheres of the same color into one sphere of any other color. To make a spell that has never been seen before, he nee…

A. Magic Spheres Time Limit: 20 Sec Memory Limit: 256 MB 题目连接 http://www.codeforces.com/contest/606/problem/A Description Carl is a beginner magician. He has a blue, b violet and c orange magic spheres. In one move he can transform two spheres of the…

Magic Spheres Time Limit: 2000MS   Memory Limit: 262144KB   64bit IO Format: %I64d & %I64u Submit Status Description Carl is a beginner magician. He has a blue, b violet and c orange magic spheres. In one move he can transform two spheres of the same…

这个题就是求出给的公式的结果. 仅仅要知道异或运算满足交换律跟结合律即可了.之后就是化简公式. #include<map> #include<string> #include<cstring> #include<cstdio> #include<cstdlib> #include<cmath> #include<queue> #include<vector> #include<iostream> #…

题目链接:http://codeforces.com/contest/424/problem/C 题意:求Q值 思路:找规律 显然能够得到一个矩阵 把这个矩阵画出来就能发现一个横向的规律和一个主对角线方向的规律 #include<stdio.h> #include<string.h> #include<iostream> #include<algorithm> #include<queue> #include<vector> usin…

http://acm.hust.edu.cn/vjudge/contest/view.action?cid=102271#problem/A Description Carl is a beginner magician. He has a blue, b violet and c orange magic spheres. In one move he can transform two spheres of the same color into one sphere of any othe…

水 A - Magic Spheres 这题也卡了很久很久,关键是“至少”,所以只要判断多出来的是否比需要的多就行了. #include <bits/stdc++.h> using namespace std; #define lson l, mid, o << 1 #define rson mid + 1, r, o << 1 | 1 typedef long long ll; const int N = 1e5 + 5; const int INF = 0x3f3f…

A. Magic Spheres time limit per test 2 seconds memory limit per test 256 megabytes input standard input output standard output Carl is a beginner magician. He has a blue, b violet and c orange magic spheres. In one move he can transform two spheres o…