一道C題目

 1 #include <stdio.h> 2 #include <math.h> 3  4 int main() 5 { 6     long int sum; 7     long int a,b; 8     int ka = 0,kb,i,j; 9     printf("Enter sum:\n");10     scanf("%ld",&sum);11     for(a = 100; a <= sum; a++)12     {13         b = sum -a;14         if(b < 100)15         {16             return 0;17         }18         ka = (long int)sqrt(a);19         kb = (long int)sqrt(b);20         i = 100 > ka ? 100 : ka;21         for(; i <= a; i++)22         {23             if(a%i == 0)24             {25                 j = 100 > kb ? 100 : kb;26                 for(; j <= b; j++)27                 {28                     if(b%j == 0)29                     {30                         printf("m = %d,n = %d,x = %d,y = %d\n",b/j,a/i,j,i);31                     }32                 }33             }34         }35     }36     37     return 0;    38 }