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Submission #397387

# Submission time Handle Problem Language Result Execution time Memory
397387 2021-05-02T02:17:22 Z KoD Martian DNA (BOI18_dna) C++17
100 / 100
 142 ms 13996 KB 
#include <bits/stdc++.h>

template <class T>
using Vec = std::vector<T>;

int main() {
    int N, K, R;
    std::cin >> N >> K >> R;
    Vec<int> A(N);
    for (auto& x: A) {
        std::cin >> x;
    }
    Vec<Vec<int>> pos(K);
    for (int i = 0; i < N; ++i) {
        pos[A[i]].push_back(i);
    }
    Vec<int> need(K);
    while (R--) {
        int b;
        std::cin >> b;
        std::cin >> need[b];
    }
    int right = 0;
    for (int i = 0; i < K; ++i) {
        if (need[i] == 0) {
            continue;
        }
        if (need[i] > (int) pos[i].size()) {
            std::cout << "impossible\n";
            return 0;
        }
        right = std::max(right, pos[i][need[i] - 1]);
    }
    int ans = right + 1;
    for (int left = 1; left < N; ++left) {
        const auto x = A[left - 1];
        if (need[x] > 0) {
            need[x] += 1;
            if (need[x] > (int) pos[x].size()) {
                break;
            }
            right = std::max(right, pos[x][need[x] - 1]);
        }
        ans = std::min(ans, right - left + 1);
    }
    std::cout << ans << '\n';
    return 0;
}

Subtask #1
16.0 / 16.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 204 KB Output is correct
2 Correct 1 ms 204 KB Output is correct
3 Correct 1 ms 204 KB Output is correct
4 Correct 1 ms 204 KB Output is correct
5 Correct 1 ms 204 KB Output is correct
6 Correct 1 ms 204 KB Output is correct
7 Correct 1 ms 204 KB Output is correct
8 Correct 1 ms 300 KB Output is correct
9 Correct 1 ms 204 KB Output is correct

Subtask #2
24.0 / 24.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 332 KB Output is correct
2 Correct 2 ms 332 KB Output is correct
3 Correct 2 ms 460 KB Output is correct
4 Correct 2 ms 464 KB Output is correct
5 Correct 2 ms 308 KB Output is correct
6 Correct 1 ms 332 KB Output is correct
7 Correct 1 ms 204 KB Output is correct
8 Correct 1 ms 204 KB Output is correct
9 Correct 1 ms 204 KB Output is correct
10 Correct 1 ms 204 KB Output is correct
11 Correct 1 ms 204 KB Output is correct
12 Correct 1 ms 204 KB Output is correct
13 Correct 1 ms 204 KB Output is correct
14 Correct 1 ms 204 KB Output is correct
15 Correct 1 ms 204 KB Output is correct

Subtask #3
28.0 / 28.0

# Verdict Execution time Memory Grader output
1 Correct 37 ms 2692 KB Output is correct
2 Correct 39 ms 2748 KB Output is correct
3 Correct 39 ms 2536 KB Output is correct
4 Correct 38 ms 2724 KB Output is correct
5 Correct 80 ms 7068 KB Output is correct
6 Correct 36 ms 2600 KB Output is correct
7 Correct 43 ms 2572 KB Output is correct
8 Correct 98 ms 13996 KB Output is correct
9 Correct 68 ms 3496 KB Output is correct
10 Correct 38 ms 2628 KB Output is correct
11 Correct 2 ms 332 KB Output is correct
12 Correct 1 ms 304 KB Output is correct
13 Correct 2 ms 460 KB Output is correct
14 Correct 2 ms 560 KB Output is correct
15 Correct 2 ms 332 KB Output is correct
16 Correct 2 ms 332 KB Output is correct
17 Correct 1 ms 204 KB Output is correct
18 Correct 1 ms 204 KB Output is correct
19 Correct 1 ms 204 KB Output is correct
20 Correct 1 ms 204 KB Output is correct
21 Correct 1 ms 204 KB Output is correct
22 Correct 1 ms 204 KB Output is correct
23 Correct 1 ms 204 KB Output is correct
24 Correct 1 ms 204 KB Output is correct
25 Correct 1 ms 204 KB Output is correct

Subtask #4
32.0 / 32.0

# Verdict Execution time Memory Grader output
1 Correct 114 ms 7420 KB Output is correct
2 Correct 111 ms 6312 KB Output is correct
3 Correct 85 ms 5956 KB Output is correct
4 Correct 39 ms 2596 KB Output is correct
5 Correct 131 ms 9080 KB Output is correct
6 Correct 142 ms 13652 KB Output is correct
7 Correct 65 ms 3652 KB Output is correct
8 Correct 91 ms 4392 KB Output is correct
9 Correct 37 ms 2700 KB Output is correct
10 Correct 40 ms 2732 KB Output is correct
11 Correct 39 ms 2520 KB Output is correct
12 Correct 38 ms 2760 KB Output is correct
13 Correct 75 ms 6980 KB Output is correct
14 Correct 37 ms 2604 KB Output is correct
15 Correct 43 ms 2600 KB Output is correct
16 Correct 109 ms 13992 KB Output is correct
17 Correct 63 ms 3492 KB Output is correct
18 Correct 38 ms 2604 KB Output is correct
19 Correct 2 ms 296 KB Output is correct
20 Correct 1 ms 332 KB Output is correct
21 Correct 2 ms 460 KB Output is correct
22 Correct 2 ms 564 KB Output is correct
23 Correct 2 ms 308 KB Output is correct
24 Correct 1 ms 332 KB Output is correct
25 Correct 1 ms 204 KB Output is correct
26 Correct 1 ms 204 KB Output is correct
27 Correct 1 ms 204 KB Output is correct
28 Correct 1 ms 204 KB Output is correct
29 Correct 1 ms 204 KB Output is correct
30 Correct 1 ms 204 KB Output is correct
31 Correct 1 ms 204 KB Output is correct
32 Correct 1 ms 204 KB Output is correct
33 Correct 1 ms 204 KB Output is correct