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Submission #934351

# Submission time Handle Problem Language Result Execution time Memory
934351 2024-02-27T08:04:24 Z vjudge1 Street Lamps (APIO19_street_lamps) C++17
20 / 100
 80 ms 11604 KB 
#include <bits/stdc++.h>
using namespace std;

const int mxN = 3e5 + 7;

int n, q, arr[mxN], res[mxN], on[mxN];

int32_t main() {
    ios_base::sync_with_stdio(0); cin.tie(0); cout.tie(0);

    cin >> n >> q;
    for (int i = 1; i <= n; ++i) {
        char c;
        cin >> c;

        if (c == '1') {
            arr[i] = 1;
        }
        on[i] = -1;
    }

    for (int i = 1; i <= n; ++i) {
        if (arr[i]) {
            on[i] = 0;
        }
    }
    
    for (int i = 1; i <= q; ++i) {
        string t;
        cin >> t;

        if (t[0] == 'q') {
            int a, b;
            cin >> a >> b;
            
            cout << res[a] + (on[a] != -1 ? i - on[a] : 0) << "\n";
        }
        else {
            int ind;
            cin >> ind;
            arr[ind] ^= 1;

            if (arr[ind]) {
                assert(on[ind] == -1);
                on[ind] = i;
            }
            else {
                res[ind] += i - on[ind];
                on[ind] = -1;
            }
        }
    }
}

Subtask #1
0 / 20.0

# Verdict Execution time Memory Grader output
1 Incorrect 0 ms 348 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #2
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 59 ms 4208 KB Output is correct
2 Correct 53 ms 4892 KB Output is correct
3 Correct 54 ms 5460 KB Output is correct
4 Correct 80 ms 9556 KB Output is correct
5 Correct 70 ms 9976 KB Output is correct
6 Correct 66 ms 9464 KB Output is correct
7 Correct 78 ms 9156 KB Output is correct
8 Correct 80 ms 11604 KB Output is correct

Subtask #3
0 / 20.0

# Verdict Execution time Memory Grader output
1 Incorrect 1 ms 348 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #4
0 / 20.0

# Verdict Execution time Memory Grader output
1 Incorrect 1 ms 2392 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #5
0 / 20.0

# Verdict Execution time Memory Grader output
1 Incorrect 0 ms 348 KB Output isn't correct
2 Halted 0 ms 0 KB -