[C++] 백준 2010번 : 플러그

https://www.acmicpc.net/problem/2010

#include <iostream>

using namespace std;

int main() {

int tc;

cin >> tc;

int n,cnt =0;

for (int i = 0; i < tc - 1; i++) {

cin >> n;

cnt += n - 1;

}

cin >> n;

cnt += n;

cout << cnt;

}