Write a C program to swap two numbers without using a temporary variable.
#include
int main()
{
int num1=10,num2=20;
num1=num1+num2;
num2=num1-num2;
num1=num1-num2;
printf("After swap two numbers
");
printf("num1=%d , num2=%d ",num1,num2);
return 0;
}
