문제
풀이
#include <iostream>
using namespace std;
void solve(void) {
int x; cin >> x;
int a; cin >> a;
int b; cin >> b;
int ans = 0;
if (a == 1) ans += x;
if (b == 1) {
int c = (a == 1) ? 1 : x;
while (c--) {
int d; cin >> d;
if (d == 1) ans++;
}
}
cout << ans;
}
int main(void) {
ios::sync_with_stdio(false);
cin.tie(nullptr);
solve();
return 0;
}