Submission #1070456

#	Time	Username	Problem	Language	Result	Execution time	Memory
1070456		raduv	Infinite Race (EGOI24_infiniterace2)	C++17	100 / 100	45 ms	2488 KiB

Main

#include <bits/stdc++.h>
using namespace std;
const int MAXN = 200'000;
int v[MAXN];
int main()
{
    int n, q, i, x, ans = 0, lastdeleted;
    cin >> n >> q;
    lastdeleted = 0;
    for(i = 1; i <= q; i++){
      cin >> x;
      if(x < 0){
        v[-x] = 0;
      }
      else{
        if(v[x] > lastdeleted){
          ans++;
          v[x] = i + 1;
          lastdeleted = i;
        }
        else
          v[x] = i;
      }
    }
    cout << ans << "\n";
    return 0;
}

• Subtask 1: 29 / 29
• Subtask 2: 34 / 34
• Subtask 3: 22 / 22
• Subtask 4: 15 / 15