Submission #1007711

#	Time	Username	Problem	Language	Result	Execution time	Memory
1007711		makanhulia	Lasers (NOI19_lasers)	C++17	0 / 100	10 ms	348 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; val = max(val,a);  
        }
    }
    cout << val - (n - val + 1) + 1 << endl; 
}

Compilation message (stderr)

lasers.cpp: In function 'int main()':
lasers.cpp:20:13: warning: unused variable 'tmp' [-Wunused-variable]
   20 |         int tmp = 0;
      |             ^~~

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