Can you find it? Time Limit: 10000/3000 MS (Java/Others)    Memory Limit: 32768/10000 K (Java/Others)Total Submission(s): 8506    Accepted Submission(s): 2216 Problem Description Give you three sequences of numbers A, B, C, then we give you a number…

链接:http://acm.hdu.edu.cn/showproblem.php?pid=2141 Can you find it? Time Limit: 10000/3000 MS (Java/Others)    Memory Limit: 32768/10000 K (Java/Others)Total Submission(s): 11503    Accepted Submission(s): 3021 Problem Description Give you three seque…

题目连接 http://acm.hdu.edu.cn/showproblem.php?pid=2141 Can you find it? Description Give you three sequences of numbers A, B, C, then we give you a number X. Now you need to calculate if you can find the three numbers Ai, Bj, Ck, which satisfy the formu…

题目链接:http://acm.hdu.edu.cn/showproblem.php?pid=2141 题目大意:查找是否又满足条件的x值. 这里简单介绍一个小算法,二分查找. /* x^2+6*x-7==y 输入y 求x 精确度为10^-5 0=<x<=10000 */ #include <iostream> #include <cstdio> using namespace std; int main (void) { double y; while(cin>…

题意: 给出一个序列,对每两个数求异或结果后取最低位的1出来作为一个数,然后求这些数字的和.比如:{a,b,c},结果是lowbit(a^b)+lowbit(a^c)+lowbit(b^a)+lowbit(b^c)+lowbit(c^a)+lowbit(c^b).若不剔除结果为0的,应该有n*n个数的和作为结果. 思路: 试考虑二分法. 观察到可能的取值 lowbit[a]=1,2,4,8.....也就是说最多有29种,结果就是ans=C1*1+C2*2+C3*4+C4*8....C为个数.可以…

HDU 3081 Marriage Match II pid=3081" target="_blank" style="">题目链接 题意:n个女孩n个男孩,每一个女孩能够和一些男孩配对.然后有些女孩是朋友.满足这个朋友圈里面的人,假设有一个能和某个男孩配对,其它就都能够,然后每轮要求每一个女孩匹配到一个男孩.且每轮匹配到的都不同,问最多能匹配几轮 思路:二分轮数k,然后建图为,源点连向女孩,男孩连向汇点容量都为k,然后女孩和男孩之间连边为.有关系的…

题目链接: Can you find it? Time Limit: 10000/3000 MS (Java/Others)    Memory Limit: 32768/10000 K (Java/Others)Total Submission(s): 38634    Accepted Submission(s): 9395 Problem Description Give you three sequences of numbers A, B, C, then we give you a…

Can you find it? Time Limit: 10000/3000 MS (Java/Others)    Memory Limit: 32768/10000 K (Java/Others)Total Submission(s): 9180    Accepted Submission(s): 2401 Problem Description Give you three sequences of numbers A, B, C, then we give you a number…

Can you find it? Time Limit: 10000/3000 MS (Java/Others)    Memory Limit: 32768/10000 K (Java/Others)Total Submission(s): 19416    Accepted Submission(s): 4891 Problem Description Give you three sequences of numbers A, B, C, then we give you a number…

Problem Description Give you three sequences of numbers A, B, C, then we give you a number X. Now you need to calculate if you can find the three numbers Ai, Bj, Ck, which satisfy the formula Ai+Bj+Ck = X.   Input There are many cases. Every data cas…