swap numbers

swap numbers

@@ -0,0 +1,21 @@
+#include<stdio.h>
+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;
+}