Increments

Answer 1

#include <iostream>
using namespace std;

int main(){

int a = 2;

int b = a++ + a++;

cout << a << endl;

cout << b;
}

Answer 2

Why will the value of "a" be 4
And the value of b 5 ?

Answer 3

a++ value of a is used then incremented
++a value of a is incremented then used
so.. b=2+3. =5. ( value of a becomes 3 after first increment )
and as a is incremented two times a=4