Programming Examples

C Program to Swap Two Numbers

Write a C Program to Swap Two Numbers


int main() {
      double first, second, temp;
      printf("Enter first number: ");
      scanf("%lf", &first);
      printf("Enter second number: ");
      scanf("%lf", &second);

      // Value of first is assigned to temp
      temp = first;

      // Value of second is assigned to first
      first = second;

      // Value of temp (initial value of first) is assigned to second
      second = temp;

      printf("\nAfter swapping, firstNumber = %.2lf\n", first);
      printf("After swapping, secondNumber = %.2lf", second);
      return 0;

Enter first number: 1.20

Enter second number: 2.45

After swapping, firstNumber = 2.45

After swapping, secondNumber = 1.20

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