Submission #1097112

#	Time	Username	Problem	Language	Result	Execution time	Memory
1097112		Trisanu_Das	Infinite Race (EGOI24_infiniterace2)	C++17	100 / 100	17 ms	3420 KiB

Main

#include <bits/stdc++.h>
using namespace std;
#define int long long
 
int v[200005];
 
signed main(){
  ios_base::sync_with_stdio(0); cin.tie(0);
  int m, n; cin >> m >> n;
  int mx = 0;
  while(n--){
    int x; cin >> x;
    if(x > 0){
      if(v[x] == mx) v[x] = ++mx;
      else v[x] = mx;
    }else if(v[-x] != 0) v[-x]--;
  }
  cout << max(mx - 1ll, 0ll) << '\n';
}

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