A Pythagorean triplet is a set of three natural numbers, a b c, for which,
For example, 3² + 4² = 9 + 16 = 25 = 5².
There exists exactly one Pythagorean triplet for which a + b + c = 1000.
Find the product abc.
answer:
#include
#include
void main()
{
 long int a,b,c,as,bs,cs;
 clrscr();
 for(a=1;a<1000;a++)
  for(b=1;b<1000;b++)
   for(c=1;c<1000;c++)
   {
    as=a*a;
    bs=b*b;
    cs=c*c;
    if((as+bs)==cs)
     {
     if(a+b+c==1000)
      printf("a=%ld,b=%ld,c=%ld\t as=%ld,bs=%ld,cs=%ld\tproduct=%ld\n",a,b,c,as,bs,cs,a*b*c);
     }
   }
 printf("over\n");

 getch();
} 
answer:31875000