Submission #972963

#	Time	Username	Problem	Language	Result	Execution time	Memory
972963		Unforgettablepl	Street Lamps (APIO19_street_lamps)	C++17	20 / 100	86 ms	11196 KiB

street_lamps

#include <bits/stdc++.h>
using namespace std;

#define int long long

bool state[300001];
int ans[300001];
int last[300001];

int32_t main(){
    ios_base::sync_with_stdio(false);
    cin.tie(nullptr);
    int n,q;
    cin >> n >> q;
    for(int i=1;i<=n;i++){
        char a;cin>>a;
        if(a=='1')state[i]=true;
    }
    for(int i=1;i<=q;i++){
        string type;cin>>type;
        if(type=="toggle"){
            int x;cin>>x;
            if(!state[x]){
                state[x]=true;
                last[x] = i;
            } else {
                state[x]=false;
                ans[x]+=i-last[x];
            }
        } else {
            int l,r;cin>>l>>r;
            int offset = 0;
            if(state[l])offset+=i-last[l];
            cout << ans[l]+offset << '\n';
        }
    }
}

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