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Submission #733038

# Submission time Handle Problem Language Result Execution time Memory
733038 2023-04-30T03:23:05 Z boyliguanhan Street Lamps (APIO19_street_lamps) C++17
20 / 100
 5000 ms 524288 KB 
#include<bits/stdc++.h>
using namespace std;
char opposite(char c) {
    if(c=='0')
        return '1';
    return '0';
}
bool ok(string str, int a, int b) {
    for(int i = a-1; i < b-1; i++) {
        if(str[i]=='0')
            return 0;
    }
    return 1;
}
int main() {
    int n, q;
    cin >> n >> q;
    vector<string> states;
    string str;
    cin >> str;
    states.push_back(str);
    for(int i = 0; i < q; i++) {
        string type;
        int a, b;
        cin >> type >> a;
        if(type=="toggle") {
            str[a-1] = opposite(str[a-1]);
        } else {
            cin >> b;
            int ans = 0;
            for(auto i: states)
                ans+=ok(i, a, b);
            cout << ans << '\n';
        }
        states.push_back(str);
    }
}

Subtask #1
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 212 KB Output is correct
2 Correct 1 ms 212 KB Output is correct
3 Correct 1 ms 212 KB Output is correct
4 Correct 1 ms 212 KB Output is correct
5 Correct 1 ms 212 KB Output is correct
6 Correct 1 ms 300 KB Output is correct
7 Correct 1 ms 212 KB Output is correct

Subtask #2
0 / 20.0

# Verdict Execution time Memory Grader output
1 Execution timed out 5023 ms 3604 KB Time limit exceeded
2 Halted 0 ms 0 KB -

Subtask #3
0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 1336 KB Output is correct
2 Correct 19 ms 1236 KB Output is correct
3 Correct 40 ms 1248 KB Output is correct
4 Correct 130 ms 1344 KB Output is correct
5 Runtime error 2970 ms 524288 KB Execution killed with signal 9
6 Halted 0 ms 0 KB -

Subtask #4
0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 80 ms 1292 KB Output is correct
2 Correct 52 ms 1272 KB Output is correct
3 Correct 50 ms 1236 KB Output is correct
4 Correct 4 ms 1236 KB Output is correct
5 Runtime error 190 ms 524288 KB Execution killed with signal 9
6 Halted 0 ms 0 KB -

Subtask #5
0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 212 KB Output is correct
2 Correct 1 ms 212 KB Output is correct
3 Correct 1 ms 212 KB Output is correct
4 Correct 1 ms 212 KB Output is correct
5 Correct 1 ms 212 KB Output is correct
6 Correct 1 ms 300 KB Output is correct
7 Correct 1 ms 212 KB Output is correct
8 Execution timed out 5023 ms 3604 KB Time limit exceeded
9 Halted 0 ms 0 KB -