HDOJ 1017 HDU 1017 A Mathematical Curiosity ACM 1017 IN HDU

MiYu原创, 转帖请注明 : 转载自 ______________白白の屋    

 

题目地址 :
　　　　http://acm.hdu.edu.cn/showproblem.php?pid=1017

题目描述:

A Mathematical Curiosity

Time Limit: 2000/1000 MS (Java/Others)    Memory Limit: 65536/32768 K (Java/Others)
Total Submission(s): 8614    Accepted Submission(s): 2592

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

        
       
       
       

        
        
        
         1

10 1
20 3
30 4
0 0
        
       
       
       

 

Sample Output

        
       
       
       

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

 

 

 题目分析 :

　　没事水一水, 嘿嘿.......   新手只需要 注意下输出就可以了 . 暴力过, 没什么技巧

 

代码如下 :

 /*

MiYu原创, 转帖请注明 : 转载自 ______________白白の屋

          http://www.cnblog.com/MiYu

Author By : MiYu

Test      : 1

Program   : 1017

*/

#include <iostream>

#include <algorithm>

using namespace std;

int main ()

{

    int T;    cin >> T;

    for ( int k = 1; k <= T; ++ k ){

           int N, M, ca = 1, cnt = 0;

           if ( k != 1 ) putchar ( 10 );

           while ( cin >> N >> M, N || M ){     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",ca++, cnt );   

           }      

    } 

    return 0;

}