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Submission #163952

# Submission time Handle Problem Language Result Execution time Memory
163952 2019-11-16T11:58:31 Z Leonardo_Paes Street Lamps (APIO19_street_lamps) C++17
0 / 100
 465 ms 4256 KB 
#include <bits/stdc++.h>

using namespace std;

const int maxn = 1e5+10;

typedef pair<int, bool> pii;

int n, q;

pii last[maxn];

int main(){
    ios_base::sync_with_stdio(false);cin.tie(NULL);cout.tie(NULL);

    cin >> n >> q;

    for(int i=1; i<=n; i++){
        char a;

        cin >> a;

        last[i] = {0, bool(a-'0')};
    }


    for(int t=1; t<=q; t++){
        string op;

        cin >> op;

        if(op[0] == 'q'){
            int a, b;

            cin >> a >> b;

            bool ok = true;

            int ans = 0;

            for(int i=a; i<b; i++){
                if(!last[i].second) ok = false;
                ans = max(ans, last[i].first);
            }

            if(!ok) cout << 0 << endl;
            else cout << t-ans << endl;
        }
        else{
            int i;

            cin >> i;

            last[i].first = t, last[i].second ^= 1;
        }
    }

    return 0;
}

Subtask #1
0 / 20.0

# Verdict Execution time Memory Grader output
1 Incorrect 3 ms 504 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #2
0 / 20.0

# Verdict Execution time Memory Grader output
1 Incorrect 465 ms 4256 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #3
0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 376 KB Output is correct
2 Correct 4 ms 376 KB Output is correct
3 Correct 4 ms 376 KB Output is correct
4 Correct 5 ms 376 KB Output is correct
5 Runtime error 6 ms 2296 KB Execution killed with signal 11 (could be triggered by violating memory limits)
6 Halted 0 ms 0 KB -

Subtask #4
0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 5 ms 376 KB Output is correct
2 Incorrect 4 ms 376 KB Output isn't correct
3 Halted 0 ms 0 KB -

Subtask #5
0 / 20.0

# Verdict Execution time Memory Grader output
1 Incorrect 3 ms 504 KB Output isn't correct
2 Halted 0 ms 0 KB -