문제
풀이
#include <iostream>
using namespace std;
void solve(void) {
int a, b; cin >> a >> b;
cout << 1 + (b - a + (a % 2 == 0) - (b % 2 == 0)) / 2;
}
int main(void) {
ios::sync_with_stdio(false);
cin.tie(nullptr);
solve();
return 0;
}