Swap two numbers

Write a program to swap content of two variable.

#include<stdio.h>
void Swap_Two_Numbers(int*,int*);
int main()
{
	int num1,num2,temp,op,*ptr1,*ptr2;
	printf("Enter a Number_1 = ");
	scanf("%d",&num1);
	printf("Enter a Number_2 = ");
	scanf("%d",&num2);
	if(num1 == num2)
	{
		printf("Same Data.\nNo Need to Swap\n");
		return 0;
	}
	printf("Enter Option\n1] Using Temperory Variable\n2] One Expression(+/-)\
	\n3] One Expression(*//)\n4] Without Temperory Variable(+/-)\n5] Without Temprory Variable(*//)\
	\n6] Using Pointer\n7] Using Function\n8] Bitwise Method\n");
	scanf("%d",&op);
	printf("Before Swapping\nNum 1 = %d Num 2 = %d\n",num1,num2);
	switch(op)
	{
		case 1:
			temp = num1;
			num1 = num2;
			num2 = temp;
			break;
		case 2:
			num2 = (num1+num2) - (num1=num2);
			break;
		case 3:
			num2 = (num1*num2) / (num1=num2);
			break;
		case 4:
			num1 = num1 + num2;
			num2 = num1 - num2;
			num1 = num1 - num2;
			break;
		case 5:
			num1 = num1 * num2;
			num2 = num1 / num2;
			num1 = num1 / num2;
			break;
		case 6:
			ptr1 = &num1;
			ptr2 = &num2;
			temp = *ptr1;
			*ptr1 = *ptr2;
			*ptr2 = temp;
			break;
		case 7:
			Swap_Two_Numbers(&num1,&num2);
			break;
		case 8:
			num1 = num1 ^ num2;
			num2 = num1 ^ num2;
			num1 = num1 ^ num2;
			break;
		default:
			printf("Invalid Option....\n");
	}
	printf("After Swapping\nNum 1 = %d Num 2 = %d\n",num1,num2);
	return 0;
}
void Swap_Two_Numbers(int *p,int *q)
{
	int temp;
	temp = *p;
	*p = *q;
	*q = temp;
}

Output

Enter a Number_1 = 10
Enter a Number_2 = 20
Enter Option
1] Using Temperory Variable
2] One Expression(+/-)
3] One Expression(*//)
4] Without Temperory Variable(+/-)
5] Without Temprory Variable(*//)
6] Using Pointer
7] Using Function
8] Bitwise Method
4
Before Swapping
Num 1 = 10 Num 2 = 20
After Swapping
Num 1 = 20 Num 2 = 10

Enter a Number_1 = 10
Enter a Number_2 = 20
Enter Option
1] Using Temperory Variable
2] One Expression(+/-)
3] One Expression(*//)
4] Without Temperory Variable(+/-)
5] Without Temprory Variable(*//)
6] Using Pointer
7] Using Function
8] Bitwise Method
8
Before Swapping
Num 1 = 10 Num 2 = 20
After Swapping
Num 1 = 20 Num 2 = 10