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Submission #296934

# Submission time Handle Problem Language Result Execution time Memory
296934 2020-09-11T05:17:49 Z ahmad_salah K blocks (IZhO14_blocks) C++17
53 / 100
 1000 ms 80120 KB 
#pragma GCC optimize("Ofast,no-stack-protector,unroll-loops,fast-math,O3")
#include <bits/stdc++.h>
using namespace std;

const int M = 1e5 + 1;
int seg[101][4 * M], big = 1e9;

void update(int L, int R, int ind, int x, int i, int j) {
    if (L == R)
        seg[i][j] = x;
    else {
        int mid = (L + R) / 2;
        if (ind <= mid)
            update(L, mid, ind, x, i, j * 2 + 1);
        else
            update(mid + 1, R, ind, x, i, j * 2 + 2);
        seg[i][j] = min(seg[i][j * 2 + 1], seg[i][j * 2 + 2]);
    }
}
int get(int l, int r, int L, int R, int i, int j) {
    if (r < L || l > R)
        return big;
    if (L >= l && R <= r)
        return seg[i][j];
    return min(get(l, r, L, (L + R) / 2, i, j * 2 + 1), get(l, r, (L + R) / 2 + 1, R, i, j * 2 + 2));
}

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

    int n, k;
    cin >> n >> k;
    int dp[n + 1][k + 1], a[n], greater[n];

    for (int &x : a)
        cin >> x;

    stack<int> st;
    for (int i = 0; i < n; i++) {
        while (!st.empty() && a[st.top()] < a[i])
            greater[st.top()] = i, st.pop();
        st.push(i);
    }
    while (!st.empty())
        greater[st.top()] = n, st.pop();

    for (int i = 0; i < k; i++)
        dp[n][i] = big, update(0, n, n, big, i, 0);
    for (int i = 0; i < n; i++)
        dp[i][k] = big, update(0, n, i, big, k, 0);
    dp[n][k] = 0;

    for (int i = n - 1; i >= 0; i--) {
        for (int j = k - 1; j >= 0; j--) {
            dp[i][j] = min(dp[greater[i]][j], a[i] + get(i + 1, greater[i], 0, n, j + 1, 0));
            update(0, n, i, dp[i][j], j, 0);
        }
    }
    cout << dp[0][0] << '\n';
}

Subtask #1
14.0 / 14.0

# Verdict Execution time Memory Grader output
1 Correct 1 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 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 512 KB Output is correct
9 Correct 1 ms 416 KB Output is correct
10 Correct 1 ms 384 KB Output is correct
11 Correct 1 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 1 ms 384 KB Output is correct
15 Correct 1 ms 384 KB Output is correct
16 Correct 1 ms 384 KB Output is correct
17 Correct 1 ms 384 KB Output is correct
18 Correct 1 ms 384 KB Output is correct

Subtask #2
18.0 / 18.0

# Verdict Execution time Memory Grader output
1 Correct 1 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 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 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 1 ms 384 KB Output is correct
15 Correct 1 ms 384 KB Output is correct
16 Correct 1 ms 512 KB Output is correct
17 Correct 1 ms 512 KB Output is correct
18 Correct 1 ms 384 KB Output is correct
19 Correct 1 ms 512 KB Output is correct
20 Correct 1 ms 512 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 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 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 512 KB Output is correct
9 Correct 1 ms 416 KB Output is correct
10 Correct 1 ms 384 KB Output is correct
11 Correct 1 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 1 ms 384 KB Output is correct
15 Correct 1 ms 384 KB Output is correct
16 Correct 1 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
21 Correct 1 ms 384 KB Output is correct
22 Correct 1 ms 384 KB Output is correct
23 Correct 1 ms 384 KB Output is correct
24 Correct 1 ms 384 KB Output is correct
25 Correct 1 ms 384 KB Output is correct
26 Correct 1 ms 384 KB Output is correct
27 Correct 1 ms 384 KB Output is correct
28 Correct 1 ms 384 KB Output is correct
29 Correct 1 ms 384 KB Output is correct
30 Correct 1 ms 384 KB Output is correct
31 Correct 1 ms 384 KB Output is correct
32 Correct 1 ms 384 KB Output is correct
33 Correct 1 ms 384 KB Output is correct
34 Correct 1 ms 512 KB Output is correct
35 Correct 1 ms 512 KB Output is correct
36 Correct 1 ms 384 KB Output is correct
37 Correct 1 ms 512 KB Output is correct
38 Correct 1 ms 512 KB Output is correct
39 Correct 1 ms 768 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
43 Correct 1 ms 384 KB Output is correct
44 Correct 1 ms 384 KB Output is correct
45 Correct 1 ms 384 KB Output is correct
46 Correct 1 ms 384 KB Output is correct
47 Correct 1 ms 384 KB Output is correct
48 Correct 1 ms 384 KB Output is correct
49 Correct 1 ms 384 KB Output is correct
50 Correct 1 ms 384 KB Output is correct
51 Correct 1 ms 512 KB Output is correct
52 Correct 1 ms 512 KB Output is correct
53 Correct 2 ms 1280 KB Output is correct
54 Correct 2 ms 1152 KB Output is correct
55 Correct 1 ms 768 KB Output is correct
56 Correct 2 ms 1152 KB Output is correct
57 Correct 2 ms 1280 KB Output is correct

Subtask #4
0 / 47.0

# Verdict Execution time Memory Grader output
1 Correct 1 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 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 512 KB Output is correct
9 Correct 1 ms 416 KB Output is correct
10 Correct 1 ms 384 KB Output is correct
11 Correct 1 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 1 ms 384 KB Output is correct
15 Correct 1 ms 384 KB Output is correct
16 Correct 1 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
21 Correct 1 ms 384 KB Output is correct
22 Correct 1 ms 384 KB Output is correct
23 Correct 1 ms 384 KB Output is correct
24 Correct 1 ms 384 KB Output is correct
25 Correct 1 ms 384 KB Output is correct
26 Correct 1 ms 384 KB Output is correct
27 Correct 1 ms 384 KB Output is correct
28 Correct 1 ms 384 KB Output is correct
29 Correct 1 ms 384 KB Output is correct
30 Correct 1 ms 384 KB Output is correct
31 Correct 1 ms 384 KB Output is correct
32 Correct 1 ms 384 KB Output is correct
33 Correct 1 ms 384 KB Output is correct
34 Correct 1 ms 512 KB Output is correct
35 Correct 1 ms 512 KB Output is correct
36 Correct 1 ms 384 KB Output is correct
37 Correct 1 ms 512 KB Output is correct
38 Correct 1 ms 512 KB Output is correct
39 Correct 1 ms 768 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
43 Correct 1 ms 384 KB Output is correct
44 Correct 1 ms 384 KB Output is correct
45 Correct 1 ms 384 KB Output is correct
46 Correct 1 ms 384 KB Output is correct
47 Correct 1 ms 384 KB Output is correct
48 Correct 1 ms 384 KB Output is correct
49 Correct 1 ms 384 KB Output is correct
50 Correct 1 ms 384 KB Output is correct
51 Correct 1 ms 512 KB Output is correct
52 Correct 1 ms 512 KB Output is correct
53 Correct 2 ms 1280 KB Output is correct
54 Correct 2 ms 1152 KB Output is correct
55 Correct 1 ms 768 KB Output is correct
56 Correct 2 ms 1152 KB Output is correct
57 Correct 2 ms 1280 KB Output is correct
58 Correct 60 ms 4984 KB Output is correct
59 Correct 28 ms 2432 KB Output is correct
60 Correct 97 ms 6520 KB Output is correct
61 Correct 899 ms 54392 KB Output is correct
62 Execution timed out 1065 ms 80120 KB Time limit exceeded
63 Halted 0 ms 0 KB -