C Program to Swap two no's without using third variable - Typical Programs

C Program to Swap two no’s without using third variable

Program to show swap of two no’s without using third variable

#include<stdio.h>
int main() {
   int a, b;
   printf("\nEnter value for num1 & num2 : ");
   scanf("%d %d", &a, &b);
   a = a + b;
   b = a - b;
   a = a - b;
   printf("\nAfter swapping value of a : %d", a);
   printf("\nAfter swapping value of b : %d", b);
   return (0);
}

#include<stdio.h>

int main() {

int a, b;

printf("\nEnter value for num1 & num2 : ");

scanf("%d %d", &a, &b);

a = a + b;

b = a - b;

a = a - b;

printf("\nAfter swapping value of a : %d", a);

printf("\nAfter swapping value of b : %d", b);

return (0);

}

Output :

Enter value for num1 & num2 : 10 20
After swapping value of a : 20
After swapping value of b : 10

Enter value for num1 & num2 : 10 20

After swapping value of a : 20

After swapping value of b : 10

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C Program to Swap two no’s without using third variable

Program to show swap of two no’s without using third variable