A Mathematical CuriosityTime Limit: 2000/1000 MS (Java/Others)Memory Limit: 65536/32768 K (Java/Others)Total Submission(s): 31228Accepted Submission(s): 10004
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
Source
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题目没有算法，，直接枚举就可以，不过这个输入的要求有点奇葩，以前没见过这样的。一直没明白过来到底是什么意思，写完直接交了直接WA，斗争很久就是交不上，看了一个前辈的一句话，才知道是这样….
代码：
#include<iostream>#include<algorithm>#include<stdio.h>#include<string.h>#include<stdlib.h>using namespace std;int n,m;int main(){int T;scanf("%d",&T);while(T–){int k = 0;while(scanf("%d%d",&n,&m)!=EOF){if(n == 0 && m == 0){break;}int cnt = 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){cnt++;}}}printf("Case %d: %d\n",++k,cnt);}if(T){printf("\n");}}return 0;}
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人生就是要感受美丽的善良的，丑恶的病态的。
