oj.uz

Submission #251420

# Submission time Handle Problem Language Result Execution time Memory
251420 2020-07-21T07:45:09 Z thecodingwizard K blocks (IZhO14_blocks) C++11
100 / 100
 397 ms 81272 KB 
#include <bits/stdc++.h>

using namespace std;

#define ii pair<int, int>
#define f first
#define s second
#define mp make_pair

int main() {
    cin.tie(0); ios::sync_with_stdio(false);

    int n, k; cin >> n >> k;
    int A[n+1]; for (int i = 1; i <= n; i++) cin >> A[i];

    ii dp[n+1][k+1];
    dp[0][0] = mp(0, 0);
    for (int i = 1; i <= n; i++) dp[i][0] = mp(1e9, 1e9);
    for (int j = 1; j <= k; j++) {
        stack<ii> s;
        for (int i = j; i <= n; i++) {
            dp[i][j] = mp(dp[i-1][j-1].f+dp[i-1][j-1].s, A[i]);
            while (!s.empty() && s.top().s <= A[i]) {
                if (s.top().f+A[i] < dp[i][j].f+dp[i][j].s) {
                    dp[i][j] = mp(s.top().f, A[i]);
                }
                s.pop();
            }
            if (!s.empty()) {
                if (s.top().f + s.top().s < dp[i][j].f + dp[i][j].s) {
                    dp[i][j] = s.top();
                }
            }
            s.push(dp[i][j]);
        }
    }
    cout << dp[n][k].f + dp[n][k].s << endl;
}

Subtask #1
14.0 / 14.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 384 KB Output is correct
2 Correct 0 ms 384 KB Output is correct
3 Correct 0 ms 384 KB Output is correct
4 Correct 0 ms 384 KB Output is correct
5 Correct 0 ms 384 KB Output is correct
6 Correct 0 ms 384 KB Output is correct
7 Correct 0 ms 384 KB Output is correct
8 Correct 0 ms 384 KB Output is correct
9 Correct 0 ms 384 KB Output is correct
10 Correct 1 ms 384 KB Output is correct
11 Correct 0 ms 384 KB Output is correct
12 Correct 0 ms 384 KB Output is correct
13 Correct 0 ms 384 KB Output is correct
14 Correct 0 ms 384 KB Output is correct
15 Correct 0 ms 384 KB Output is correct
16 Correct 0 ms 384 KB Output is correct
17 Correct 0 ms 384 KB Output is correct
18 Correct 0 ms 384 KB Output is correct

Subtask #2
18.0 / 18.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 384 KB Output is correct
2 Correct 1 ms 384 KB Output is correct
3 Correct 0 ms 384 KB Output is correct
4 Correct 0 ms 384 KB Output is correct
5 Correct 0 ms 384 KB Output is correct
6 Correct 0 ms 384 KB Output is correct
7 Correct 0 ms 384 KB Output is correct
8 Correct 0 ms 384 KB Output is correct
9 Correct 1 ms 384 KB Output is correct
10 Correct 0 ms 384 KB Output is correct
11 Correct 0 ms 384 KB Output is correct
12 Correct 0 ms 384 KB Output is correct
13 Correct 1 ms 384 KB Output is correct
14 Correct 0 ms 384 KB Output is correct
15 Correct 1 ms 384 KB Output is correct
16 Correct 0 ms 384 KB Output is correct
17 Correct 0 ms 384 KB Output is correct
18 Correct 0 ms 384 KB Output is correct
19 Correct 0 ms 384 KB Output is correct
20 Correct 0 ms 384 KB Output is correct

Subtask #3
21.0 / 21.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 384 KB Output is correct
2 Correct 0 ms 384 KB Output is correct
3 Correct 0 ms 384 KB Output is correct
4 Correct 0 ms 384 KB Output is correct
5 Correct 0 ms 384 KB Output is correct
6 Correct 0 ms 384 KB Output is correct
7 Correct 0 ms 384 KB Output is correct
8 Correct 1 ms 384 KB Output is correct
9 Correct 1 ms 384 KB Output is correct
10 Correct 0 ms 384 KB Output is correct
11 Correct 0 ms 384 KB Output is correct
12 Correct 1 ms 384 KB Output is correct
13 Correct 0 ms 384 KB Output is correct
14 Correct 1 ms 384 KB Output is correct
15 Correct 1 ms 384 KB Output is correct
16 Correct 0 ms 384 KB Output is correct
17 Correct 0 ms 384 KB Output is correct
18 Correct 1 ms 384 KB Output is correct
19 Correct 0 ms 384 KB Output is correct

Subtask #4
47.0 / 47.0

# Verdict Execution time Memory Grader output
1 Correct 7 ms 2432 KB Output is correct
2 Correct 6 ms 1536 KB Output is correct
3 Correct 13 ms 3584 KB Output is correct
4 Correct 95 ms 27648 KB Output is correct
5 Correct 375 ms 80632 KB Output is correct
6 Correct 19 ms 4480 KB Output is correct
7 Correct 164 ms 37368 KB Output is correct
8 Correct 0 ms 384 KB Output is correct
9 Correct 1 ms 384 KB Output is correct
10 Correct 0 ms 384 KB Output is correct
11 Correct 0 ms 384 KB Output is correct
12 Correct 1 ms 384 KB Output is correct
13 Correct 1 ms 384 KB Output is correct
14 Correct 26 ms 8320 KB Output is correct
15 Correct 2 ms 768 KB Output is correct
16 Correct 7 ms 2560 KB Output is correct
17 Correct 7 ms 1664 KB Output is correct
18 Correct 13 ms 3968 KB Output is correct
19 Correct 119 ms 27904 KB Output is correct
20 Correct 380 ms 80820 KB Output is correct
21 Correct 18 ms 4864 KB Output is correct
22 Correct 149 ms 37880 KB Output is correct
23 Correct 15 ms 3200 KB Output is correct
24 Correct 35 ms 10280 KB Output is correct
25 Correct 366 ms 80792 KB Output is correct
26 Correct 1 ms 384 KB Output is correct
27 Correct 1 ms 384 KB Output is correct
28 Correct 25 ms 8448 KB Output is correct
29 Correct 2 ms 768 KB Output is correct
30 Correct 7 ms 2560 KB Output is correct
31 Correct 7 ms 1920 KB Output is correct
32 Correct 12 ms 3968 KB Output is correct
33 Correct 89 ms 28032 KB Output is correct
34 Correct 397 ms 81272 KB Output is correct
35 Correct 20 ms 5376 KB Output is correct
36 Correct 164 ms 38264 KB Output is correct
37 Correct 2 ms 640 KB Output is correct
38 Correct 24 ms 8320 KB Output is correct
39 Correct 1 ms 384 KB Output is correct
40 Correct 0 ms 384 KB Output is correct
41 Correct 0 ms 384 KB Output is correct
42 Correct 0 ms 384 KB Output is correct