Question

write a program in c++ to interchange 2 values without the 3rd variable. Select the correct answer from above options

Answer 1

#include int main() { printf(“Hello world!\n”); int a,b; printf(“Enter the two number \n”); scanf(“%d%d”,&a,&b); a=a+b; b=a-b; a=a-b; printf(“%d%d”,a,b); return 0; }