C Program Print Pythagorean triplets

Three positive integer numbers a, band c, such that a<b<c form a Pythagorean triplet if c²= a² +b² , i. e,, a, b and c form the sides of a right-angled triangle. To select the values of a and b such that a < b and a, b < max, we can use nested for loops as shown below:

Note the use of typecast in the if statement to test whether c contains an integer value or not and in the printf statement. The complete program is given below.

/* Determine and print Pythagorean triplets */
#include<stdio.h>
#include<conio.h>
#include<math.h>
void main() {
  int max; /* max value of side a or b */
  int a, b; /* two sides of a triangle */
  printf("Enter max value of sides a, b: ");
  scanf("%d", &max);
  for (a = 1; a <= max; a++) {
    for (b = a; b <= max; b++) {
      float c = sqrt(a *a+ b * b); /*third side*/
      if (c == (int) c)
        printf ("%2d %2d %2d\n", a, b, (int) c);
    }
  }
   getch();
}