Submission #1192023

#	Time	Username	Problem	Language	Result	Execution time	Memory
1192023		Aviansh	가로등 (APIO19_street_lamps)	C++20	20 / 100	57 ms	5080 KiB

street_lamps

#include <bits/stdc++.h>

using namespace std;

signed main(){
    ios::sync_with_stdio(0);
    cin.tie(0);
    int n,q;
    cin >> n >> q;
    string s;
    cin >> s;
    array<int,2>evs[n];
    for(int i = 0;i<n;i++){
        evs[i][0]=0;
        evs[i][1]=0;
    }
    int tim = 0;
    while(q--){
        tim++;
        string quer;
        cin >> quer;
        if(quer[0]=='q'){
            int a,b;
            cin >> a >> b;
            a--;b-=2;
            //assert(a==b);
            if(s[a]=='1'){
                cout << evs[a][0]+tim-evs[a][1] << "\n";
            }
            else{
                cout << evs[a][0] << "\n";
            }
        }
        else{
            int i;
            cin >> i;
            i--;
            if(s[i]=='1'){
                evs[i][0]+=tim-evs[i][1];
                evs[i][1]=tim;
                s[i]='0';
            }
            else{
                evs[i][1]=tim;
                s[i]='1';
            }
        }
    }
    return 0;
}

• Subtask 1: 0 / 20
• Subtask 2: 20 / 20
• Subtask 3: 0 / 20
• Subtask 4: 0 / 20
• Subtask 5: 0 / 20