杭电 acm 1017 A Mathematical Curiosity

A Mathematical Curiosity

Time Limit: 2000/1000 MS (Java/Others)    Memory Limit: 65536/32768 K (Java/Others)
Total Submission(s): 29262    Accepted Submission(s): 9316

Problem Description

Given two integers n and m, count the number of pairs of integers (a,b) such that 0 < a < b < n and (a^2+b^2 +m)/(ab) is an integer.

This problem contains multiple test cases!

The first line of a multiple input is an integer N, then a blank line followed by N input blocks. Each input block is in the format indicated in the problem description. There is a blank line between input blocks.

The output format consists of N output blocks. There is a blank line between output blocks.

 

Input

You will be given a number of cases in the input. Each case is specified by a line containing the integers n and m. The end of input is indicated by a case in which n = m = 0. You may assume that 0 < n <= 100.

 

Output

For each case, print the case number as well as the number of pairs (a,b) satisfying the given property. Print the output for each case on one line in the format as shown below.

 

Sample Input

110 120 330 40 0

 

Sample Output

Case 1: 2Case 2: 4Case 3: 5

 

 

妈的蛋，我靠 我再是新手 也不能那么坑爹啊 ，wa N*N次 ！

靠 题目开始好难理解的样子 m&&n都为零才是一个输入块；题目意思是在0到n中查找多少个a b满足那样的两个条件；注意每个输入块中间有空格；而最后一个没有

#include<iostream>int main(){using namespace std;int N,n,t=0,m,count=0;cin>>N;while(N--){while(cin>>n>>m,n+m){count=0;for(int i=1;i<n;i++){for(int j=i+1;j<n;j++){if((i*i+j*j+m)%(i*j)==0)count++;}}cout<<"Case "<<++t<<": "<<count++<<endl;}t=0;if(N)cout<<endl;}return 0;}