Hello, can someone explain this code to me?

Question

Hello, I am trying to practice C++ and I have come across an interesting piece of code:

int test(int x, int y)
{
const int n = 100;
int val = abs(x - n);
int val2 = abs(y - n);

return val == val2 ? 0 : (val < val2 ? x : y);
}

Can someone explain to me how this section work:
return val == val2 ? 0 : (val < val2 ? x : y);

Answer 1

Jibraeel Abdelwahhab

That's ternary operator which is a short of if and else statement

condition ? expression1 : expression2

Means if condition is true then expression1 will execute otherwise expression2 will execute

Answer 2

It's same as :

if(val==val2){
return 0;
}
else {
if(val<val2){
return x;
} else {
return y;
}
}