oj.uz

Submission #250233

# Submission time Handle Problem Language Result Execution time Memory
250233 2020-07-17T09:17:06 Z apostoldaniel854 K blocks (IZhO14_blocks) C++14
100 / 100
 166 ms 41080 KB 
#include <bits/stdc++.h>

using namespace std;

using ll = long long;
#define pb push_back
#define dbg(x) cerr << #x << " " << x << "\n"

const int N = 1e5, K = 100;
int a[1 + N];
int dp[1 + K][1 + N];
int mn[1 + N];
int stk[1 + N];

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

    int n, k;
    cin >> n >> k;
    for (int i = 1; i <= n; i++) {
        cin >> a[i];
        dp[1][i] = max (dp[1][i - 1], a[i]);
    }
    dp[1][0] = (1 << 30);
    for (int nrBlocks = 2; nrBlocks <= k; nrBlocks++) {
        int vf = 0;
        dp[nrBlocks][0] = (1 << 30);
        for (int i = 1; i <= n; i++) {
            int best = dp[nrBlocks - 1][i - 1];
            while (vf && a[stk[vf]] <= a[i]) {
                best = min (best, mn[stk[vf]]);
                vf--;
            }
            mn[i] = best;
            dp[nrBlocks][i] = a[i] + best;
            if (vf)
                dp[nrBlocks][i] = min (dp[nrBlocks][i], dp[nrBlocks][stk[vf]]);
            stk[++vf] = i;
        }
    }
    cout << dp[k][n] << "\n";
    return 0;
}

Subtask #1
14.0 / 14.0

# 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 1 ms 384 KB Output is correct
4 Correct 1 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 0 ms 384 KB Output is correct
14 Correct 1 ms 384 KB Output is correct
15 Correct 0 ms 384 KB Output is correct
16 Correct 1 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 0 ms 384 KB Output is correct
3 Correct 1 ms 384 KB Output is correct
4 Correct 0 ms 384 KB Output is correct
5 Correct 1 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 1 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 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 1 ms 384 KB Output is correct
18 Correct 1 ms 384 KB Output is correct
19 Correct 1 ms 384 KB Output is correct
20 Correct 1 ms 384 KB Output is correct

Subtask #3
21.0 / 21.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 640 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 1 ms 384 KB Output is correct
6 Correct 1 ms 384 KB Output is correct
7 Correct 1 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 1 ms 384 KB Output is correct
11 Correct 1 ms 416 KB Output is correct
12 Correct 0 ms 384 KB Output is correct
13 Correct 1 ms 512 KB Output is correct
14 Correct 0 ms 512 KB Output is correct
15 Correct 1 ms 896 KB Output is correct
16 Correct 1 ms 896 KB Output is correct
17 Correct 1 ms 616 KB Output is correct
18 Correct 1 ms 896 KB Output is correct
19 Correct 1 ms 896 KB Output is correct

Subtask #4
47.0 / 47.0

# Verdict Execution time Memory Grader output
1 Correct 4 ms 1536 KB Output is correct
2 Correct 6 ms 1024 KB Output is correct
3 Correct 9 ms 2304 KB Output is correct
4 Correct 43 ms 14584 KB Output is correct
5 Correct 129 ms 40952 KB Output is correct
6 Correct 16 ms 2944 KB Output is correct
7 Correct 63 ms 19448 KB Output is correct
8 Correct 1 ms 512 KB Output is correct
9 Correct 1 ms 640 KB Output is correct
10 Correct 1 ms 640 KB Output is correct
11 Correct 1 ms 640 KB Output is correct
12 Correct 1 ms 384 KB Output is correct
13 Correct 1 ms 512 KB Output is correct
14 Correct 16 ms 4864 KB Output is correct
15 Correct 2 ms 640 KB Output is correct
16 Correct 5 ms 1536 KB Output is correct
17 Correct 6 ms 1024 KB Output is correct
18 Correct 12 ms 2220 KB Output is correct
19 Correct 57 ms 14524 KB Output is correct
20 Correct 166 ms 40936 KB Output is correct
21 Correct 16 ms 3072 KB Output is correct
22 Correct 83 ms 19448 KB Output is correct
23 Correct 14 ms 1784 KB Output is correct
24 Correct 27 ms 5752 KB Output is correct
25 Correct 166 ms 40952 KB Output is correct
26 Correct 1 ms 384 KB Output is correct
27 Correct 1 ms 512 KB Output is correct
28 Correct 13 ms 4864 KB Output is correct
29 Correct 2 ms 640 KB Output is correct
30 Correct 4 ms 1664 KB Output is correct
31 Correct 6 ms 1024 KB Output is correct
32 Correct 9 ms 2304 KB Output is correct
33 Correct 46 ms 14584 KB Output is correct
34 Correct 133 ms 41080 KB Output is correct
35 Correct 16 ms 3200 KB Output is correct
36 Correct 69 ms 19576 KB Output is correct
37 Correct 2 ms 640 KB Output is correct
38 Correct 12 ms 4864 KB Output is correct
39 Correct 1 ms 384 KB Output is correct
40 Correct 1 ms 384 KB Output is correct
41 Correct 1 ms 384 KB Output is correct
42 Correct 1 ms 384 KB Output is correct