제출 #1007763

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
1007763		makanhulia	Lasers (NOI19_lasers)	C++17	24 / 100	47 ms	600 KiB

lasers

#include <bits/stdc++.h>
using namespace std; 
#define int long long
#define ld long double
#define fi first 
#define se second 
#define pb push_back
#define pii pair<int,int>
#define piii pair<pair<int,int>,pair<int,int>>
#define pip pair<int,pair<int,int>>

signed main(){
    ios_base::sync_with_stdio(false); 
    cin.tie(NULL); 
    cout.tie(NULL); 
    int n, q; cin >> n >> q; 
    int val = 0; 
    for(int i = 1; i <= q; i++){
        int x; cin >> x; 
        int tmp = 0; 
        for(int i = 1; i <= x; i++){
            int a; cin >> a; tmp += a;  
        }
        val = max(val,tmp); 
    }
    cout << max(0ll, val - (n - val + 1ll) + 1ll) << endl; 
}

• Subtask 1: 10 / 10
• Subtask 2: 14 / 14
• Subtask 3: 0 / 20
• Subtask 4: 0 / 21
• Subtask 5: 0 / 22
• Subtask 6: 0 / 13