How to find the first Pythagorean triple in C

1 Answer

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#include <stdio.h>
#include <math.h>

/*
A Pythagorean triple is a set of three positive integers (a, b, c)
that satisfy the Pythagorean theorem:

        a^2 + b^2 = c^2

These represent the side lengths of a right triangle.
The smallest and most famous Pythagorean triple is (3, 4, 5).
*/

/* Function to find the first Pythagorean triple */
void findFirstPythagoreanTriple(void) {
    for (int a = 1; a <= 100; a++) {
        for (int b = a; b <= 100; b++) {
            int c2 = a * a + b * b;   /* c^2 */
            int c = (int)sqrt((double)c2);

            if (c * c == c2) {        /* Check if c is an integer */
                printf("First Pythagorean triple: %d, %d, %d\n", a, b, c);
                return;
            }
        }
    }
}

int main(void) {
    findFirstPythagoreanTriple();
    
    return 0;
}



/*
run:

First Pythagorean triple: 3, 4, 5

*/

 



answered 3 days ago by avibootz
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