oj.uz

Submission #424554

# Submission time Handle Problem Language Result Execution time Memory
424554 2021-06-12T05:28:17 Z tengiz05 Building 4 (JOI20_building4) C++17
11 / 100
 481 ms 524292 KB 
#include <bits/stdc++.h>
int main() {
    std::ios::sync_with_stdio(false);
    std::cin.tie(nullptr);
    int n;
    std::cin >> n;
    std::vector<int> a(2 * n), b(2 * n);
    for (int i = 0; i < 2 * n; i++) {
        std::cin >> a[i];
    }
    for (int i = 0; i < 2 * n; i++) {
        std::cin >> b[i];
    }
    std::vector<std::vector<int>> dp(2 * n + 1, std::vector<int>(n + 1, 2e9));
    std::vector<std::vector<int>> par(2 * n + 1, std::vector<int>(n + 1, 0));
    dp[0][0] = 0;
    for (int i = 1; i <= 2 * n; i++) {
        for (int j = 0; j <= n; j++) {
            if (j && a[i - 1] >= dp[i - 1][j - 1]) {
                if (dp[i][j] > a[i - 1]) {
                    dp[i][j] = a[i - 1];
                    par[i][j] = -1;
                }
            }
            if (b[i - 1] >= dp[i - 1][j]) {
                if (dp[i][j] > b[i - 1]) {
                    dp[i][j] = b[i - 1];
                    par[i][j] = 0;
                }
            }
        }
    }
    if (dp[2 * n][n] < 2e9) {
        int i = 2 * n, j = n;
        std::string ans;
        while (i > 0) {
            if (par[i][j] == -1) {
                ans += 'A';
                j--;
            } else {
                ans += 'B';
            }
            i--;
        }
        reverse(ans.begin(), ans.end());
        std::cout << ans << "\n";
    } else {
        std::cout << -1 << "\n";
    }
    return 0;
}

Subtask #1
11.0 / 11.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 204 KB Output is correct
2 Correct 0 ms 204 KB Output is correct
3 Correct 0 ms 204 KB Output is correct
4 Correct 0 ms 204 KB Output is correct
5 Correct 49 ms 53956 KB Output is correct
6 Correct 40 ms 51316 KB Output is correct
7 Correct 31 ms 40368 KB Output is correct
8 Correct 63 ms 46868 KB Output is correct
9 Correct 57 ms 49056 KB Output is correct
10 Correct 46 ms 39256 KB Output is correct
11 Correct 43 ms 55628 KB Output is correct
12 Correct 47 ms 63192 KB Output is correct
13 Correct 47 ms 63180 KB Output is correct
14 Correct 88 ms 63280 KB Output is correct
15 Correct 73 ms 63296 KB Output is correct
16 Correct 59 ms 63304 KB Output is correct
17 Correct 64 ms 63116 KB Output is correct
18 Correct 49 ms 63184 KB Output is correct
19 Correct 48 ms 63300 KB Output is correct
20 Correct 56 ms 63260 KB Output is correct
21 Correct 47 ms 63180 KB Output is correct
22 Correct 68 ms 63288 KB Output is correct
23 Correct 64 ms 63280 KB Output is correct
24 Correct 97 ms 63296 KB Output is correct
25 Correct 58 ms 62540 KB Output is correct
26 Correct 63 ms 63284 KB Output is correct
27 Correct 67 ms 63280 KB Output is correct
28 Correct 47 ms 50688 KB Output is correct
29 Correct 57 ms 63328 KB Output is correct
30 Correct 45 ms 51112 KB Output is correct
31 Correct 55 ms 63180 KB Output is correct
32 Correct 46 ms 44596 KB Output is correct
33 Correct 56 ms 63284 KB Output is correct

Subtask #2
0 / 89.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 204 KB Output is correct
2 Correct 0 ms 204 KB Output is correct
3 Correct 0 ms 204 KB Output is correct
4 Correct 0 ms 204 KB Output is correct
5 Correct 49 ms 53956 KB Output is correct
6 Correct 40 ms 51316 KB Output is correct
7 Correct 31 ms 40368 KB Output is correct
8 Correct 63 ms 46868 KB Output is correct
9 Correct 57 ms 49056 KB Output is correct
10 Correct 46 ms 39256 KB Output is correct
11 Correct 43 ms 55628 KB Output is correct
12 Correct 47 ms 63192 KB Output is correct
13 Correct 47 ms 63180 KB Output is correct
14 Correct 88 ms 63280 KB Output is correct
15 Correct 73 ms 63296 KB Output is correct
16 Correct 59 ms 63304 KB Output is correct
17 Correct 64 ms 63116 KB Output is correct
18 Correct 49 ms 63184 KB Output is correct
19 Correct 48 ms 63300 KB Output is correct
20 Correct 56 ms 63260 KB Output is correct
21 Correct 47 ms 63180 KB Output is correct
22 Correct 68 ms 63288 KB Output is correct
23 Correct 64 ms 63280 KB Output is correct
24 Correct 97 ms 63296 KB Output is correct
25 Correct 58 ms 62540 KB Output is correct
26 Correct 63 ms 63284 KB Output is correct
27 Correct 67 ms 63280 KB Output is correct
28 Correct 47 ms 50688 KB Output is correct
29 Correct 57 ms 63328 KB Output is correct
30 Correct 45 ms 51112 KB Output is correct
31 Correct 55 ms 63180 KB Output is correct
32 Correct 46 ms 44596 KB Output is correct
33 Correct 56 ms 63284 KB Output is correct
34 Runtime error 481 ms 524292 KB Execution killed with signal 9
35 Halted 0 ms 0 KB -