C Exercises: Find the product xyz

Last update on May 27 2022 12:16:45 (UTC/GMT +8 hours)

C Programming Practice: Exercise-25 with Solution

A Pythagorean triplet is a set of three natural numbers, x < y < z, for which,
x² + y² = z²
For example, 3² + 4² = 9 + 16 = 25 = 5².
There exists exactly one Pythagorean triplet for which x +y + z = 1000.
Write a C programming to find the product xyz.

C Code:

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

int main(void)
{
  int x, y;

  for (x = 1; x <= 333; x++) {
    for (y = x; y <= 666; y++) {
      int z = (1000 - x - y);
      if (x*x + y*y == z*z) {
      	printf("Numbers are: %d, %d, %d ", x, y, z);
        printf("\nProduct of x, y, z is : %d", x * y * z);
      }
    }
  }
  return 0;
}

Sample Output:

Numbers are: 200, 375, 425 
Product of x, y, z is : 31875000

Flowchart:

C Programming Code Editor:

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Previous: Write a C programming to find the thirteen adjacent digits in the 1000-digit number that have the greatest product. What is the value of this product?.
Next: Write a C programming to find the sum of all the primes below ten thousand.

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C Programming: Tips of the Day

Static variable inside of a function in C

The scope of variable is where the variable name can be seen. Here, x is visible only inside function foo().

The lifetime of a variable is the period over which it exists. If x were defined without the keyword static, the lifetime would be from the entry into foo() to the return from foo(); so it would be re-initialized to 5 on every call.

The keyword static acts to extend the lifetime of a variable to the lifetime of the programme; e.g. initialization occurs once and once only and then the variable retains its value - whatever it has come to be - over all future calls to foo().

Ref : https://bit.ly/3fOq7XP