Submission #972961

#	Time	Username	Problem	Language	Result	Execution time	Memory
972961		Unforgettablepl	Street Lamps (APIO19_street_lamps)	C++17	20 / 100	133 ms	4576 KiB

street_lamps

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

#define int long long

bool state[101];
int ans[101][101];

void compute(){
    for(int start = 1;start<=100;start++){
        for(int end = start;end<=100;end++){
            if(!state[end])break;
            ans[start][end]++;
        }
    }
}

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++){
        compute();
        string type;cin>>type;
        if(type=="toggle"){
            int x;cin>>x;
            state[x] = !state[x];
        } else {
            int l,r;cin>>l>>r;
            cout << ans[l][r-1] << '\n';
        }
    }
}

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