Ans is 111 ( option B)
x is declared globally and initiliase to 10. Hence we can access it anywhere outside main as well as inside main
first from main you called function1(10)
void function1(int x){
x = x * x; // It's x is not same as we declared globally , it's another variable, which can be access inside this function only
function2(x); // function2(100)
}
void function2(int y){
x = x + y; // Here, x is our global variable, hence it will add 100 to it and make x to 110
}
int main(){
function1(x); here on calling this function will change x to 110 finally.
x++; // Incremenet x by 1
cout << x << endl; // print 111.
}
