Submission #1047150

#	Time	Username	Problem	Language	Result	Execution time	Memory
1047150		ZeroCool	Infinite Race (EGOI24_infiniterace2)	C++14	100 / 100	56 ms	600 KiB

Main

#include <bits/stdc++.h>
using namespace std;
 
#define int long long
#define ll long long
#define ar array
#define ld long double
 
const int N = 2e5 + 20;
const int B = 400;
const int M = 200;
const int INF = 1e15;
const int LOG = 63;
const int MOD = 998244353;
 
#pragma GCC optimize("O3,unroll-loops")
#pragma GCC target("avx,bmi,bmi2,lzcnt,popcnt")



signed main(){ios_base::sync_with_stdio(false);cin.tie(0);
    int n, q;
    cin>>n>>q;
    bitset<N> b;
    int ans = 0;
    while(q--){
        int x;
        cin>>x;
        if(x > 0){
            if(b[x]){
                ans++;
                b &= 0;
            }
            b[x] = 1;
        }else b[-x] = 0;
    }
    cout<<ans;
}
 

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