程序代码：

#include<stdio.h>
#include<math.h>
int main(void)
{
    double a;
    double b;
    double c;

    for (a = 1; a <= 100000; a++)
    {
        for (b = a; b <= 100000; b++)
        {
            c = sqrt(a * a + b * b);
            if (c <= 100000)
            {
                if ( c == (int)c)
                {
                    printf("a=%d,b=%d,c=%d\n", (int)a, (int)b, (int)c);
                }
            }
        }
    }

    return (0);
}