oj.uz

Submission #311857

# Submission time Handle Problem Language Result Execution time Memory
311857 2020-10-12T01:20:52 Z nikatamliani K blocks (IZhO14_blocks) C++14
53 / 100
 27 ms 35840 KB 
#include <bits/stdc++.h>
using namespace std;
const int N = 3005, oo = 1e9;
int n, k, a[N], dp[N][N];
int main() {
    cin >> n >> k;
    for(int i = 1; i <= n; ++i) {
        cin >> a[i];
    }
    for(int i = 0; i < N; ++i) {
        for(int j = 0; j < N; ++j) {
            dp[i][j] = oo;
        }
    }
    stack < int > st;
    dp[0][0] = 0;
    vector < int > v[k + 1];
    v[0].push_back(0);
    // for(int i = 0; i <= k; ++i) v[i].push_back(0);
    for(int i = 1; i <= n; ++i) {
        while(!st.empty() && a[st.top()] <= a[i]) st.pop();
        int x = 0;
        if(!st.empty()) x = st.top();
        for(int j = min(i, k); j >= 1; --j) {
            dp[i][j] = dp[x][j];
            int l = 0, r = (int)v[j - 1].size() - 1, ans = -1;
            while(r >= l) {
                int m = l + r >> 1;
                if(v[j - 1][m] >= x) {
                    ans = v[j - 1][m];
                    r = m - 1;
                } else {
                    l = m + 1;
                }
            }
            if(~ans)dp[i][j] = min(dp[ans][j - 1] + a[i], dp[i][j]);
            while(!v[j].empty() && dp[v[j].back()][j] >= dp[i][j]) v[j].pop_back();
            v[j].push_back(i);
        }
        st.push(i);
    }
    cout << dp[n][k] << '\n';
}

Compilation message

blocks.cpp: In function 'int main()':
blocks.cpp:28:27: warning: suggest parentheses around '+' inside '>>' [-Wparentheses]
   28 |                 int m = l + r >> 1;
      |                         ~~^~~

Subtask #1
14.0 / 14.0

# Verdict Execution time Memory Grader output
1 Correct 22 ms 35712 KB Output is correct
2 Correct 22 ms 35712 KB Output is correct
3 Correct 22 ms 35712 KB Output is correct
4 Correct 22 ms 35704 KB Output is correct
5 Correct 22 ms 35712 KB Output is correct
6 Correct 22 ms 35712 KB Output is correct
7 Correct 21 ms 35704 KB Output is correct
8 Correct 22 ms 35712 KB Output is correct
9 Correct 22 ms 35712 KB Output is correct
10 Correct 22 ms 35712 KB Output is correct
11 Correct 22 ms 35712 KB Output is correct
12 Correct 22 ms 35712 KB Output is correct
13 Correct 22 ms 35712 KB Output is correct
14 Correct 22 ms 35712 KB Output is correct
15 Correct 22 ms 35712 KB Output is correct
16 Correct 23 ms 35840 KB Output is correct
17 Correct 22 ms 35704 KB Output is correct
18 Correct 23 ms 35704 KB Output is correct

Subtask #2
18.0 / 18.0

# Verdict Execution time Memory Grader output
1 Correct 22 ms 35704 KB Output is correct
2 Correct 23 ms 35712 KB Output is correct
3 Correct 23 ms 35712 KB Output is correct
4 Correct 22 ms 35712 KB Output is correct
5 Correct 22 ms 35712 KB Output is correct
6 Correct 22 ms 35712 KB Output is correct
7 Correct 22 ms 35704 KB Output is correct
8 Correct 22 ms 35712 KB Output is correct
9 Correct 22 ms 35712 KB Output is correct
10 Correct 24 ms 35704 KB Output is correct
11 Correct 22 ms 35712 KB Output is correct
12 Correct 23 ms 35712 KB Output is correct
13 Correct 22 ms 35704 KB Output is correct
14 Correct 23 ms 35712 KB Output is correct
15 Correct 22 ms 35712 KB Output is correct
16 Correct 23 ms 35712 KB Output is correct
17 Correct 22 ms 35712 KB Output is correct
18 Correct 22 ms 35704 KB Output is correct
19 Correct 23 ms 35712 KB Output is correct
20 Correct 22 ms 35704 KB Output is correct

Subtask #3
21.0 / 21.0

# Verdict Execution time Memory Grader output
1 Correct 22 ms 35712 KB Output is correct
2 Correct 22 ms 35712 KB Output is correct
3 Correct 22 ms 35712 KB Output is correct
4 Correct 22 ms 35704 KB Output is correct
5 Correct 22 ms 35712 KB Output is correct
6 Correct 22 ms 35712 KB Output is correct
7 Correct 21 ms 35704 KB Output is correct
8 Correct 22 ms 35712 KB Output is correct
9 Correct 22 ms 35712 KB Output is correct
10 Correct 22 ms 35712 KB Output is correct
11 Correct 22 ms 35712 KB Output is correct
12 Correct 22 ms 35712 KB Output is correct
13 Correct 22 ms 35712 KB Output is correct
14 Correct 22 ms 35712 KB Output is correct
15 Correct 22 ms 35712 KB Output is correct
16 Correct 23 ms 35840 KB Output is correct
17 Correct 22 ms 35704 KB Output is correct
18 Correct 23 ms 35704 KB Output is correct
19 Correct 22 ms 35704 KB Output is correct
20 Correct 23 ms 35712 KB Output is correct
21 Correct 23 ms 35712 KB Output is correct
22 Correct 22 ms 35712 KB Output is correct
23 Correct 22 ms 35712 KB Output is correct
24 Correct 22 ms 35712 KB Output is correct
25 Correct 22 ms 35704 KB Output is correct
26 Correct 22 ms 35712 KB Output is correct
27 Correct 22 ms 35712 KB Output is correct
28 Correct 24 ms 35704 KB Output is correct
29 Correct 22 ms 35712 KB Output is correct
30 Correct 23 ms 35712 KB Output is correct
31 Correct 22 ms 35704 KB Output is correct
32 Correct 23 ms 35712 KB Output is correct
33 Correct 22 ms 35712 KB Output is correct
34 Correct 23 ms 35712 KB Output is correct
35 Correct 22 ms 35712 KB Output is correct
36 Correct 22 ms 35704 KB Output is correct
37 Correct 23 ms 35712 KB Output is correct
38 Correct 22 ms 35704 KB Output is correct
39 Correct 22 ms 35680 KB Output is correct
40 Correct 21 ms 35712 KB Output is correct
41 Correct 23 ms 35712 KB Output is correct
42 Correct 27 ms 35704 KB Output is correct
43 Correct 24 ms 35712 KB Output is correct
44 Correct 24 ms 35712 KB Output is correct
45 Correct 22 ms 35712 KB Output is correct
46 Correct 24 ms 35704 KB Output is correct
47 Correct 24 ms 35712 KB Output is correct
48 Correct 23 ms 35712 KB Output is correct
49 Correct 23 ms 35712 KB Output is correct
50 Correct 23 ms 35712 KB Output is correct
51 Correct 23 ms 35712 KB Output is correct
52 Correct 23 ms 35704 KB Output is correct
53 Correct 24 ms 35712 KB Output is correct
54 Correct 25 ms 35712 KB Output is correct
55 Correct 22 ms 35712 KB Output is correct
56 Correct 23 ms 35712 KB Output is correct
57 Correct 22 ms 35712 KB Output is correct

Subtask #4
0 / 47.0

# Verdict Execution time Memory Grader output
1 Correct 22 ms 35712 KB Output is correct
2 Correct 22 ms 35712 KB Output is correct
3 Correct 22 ms 35712 KB Output is correct
4 Correct 22 ms 35704 KB Output is correct
5 Correct 22 ms 35712 KB Output is correct
6 Correct 22 ms 35712 KB Output is correct
7 Correct 21 ms 35704 KB Output is correct
8 Correct 22 ms 35712 KB Output is correct
9 Correct 22 ms 35712 KB Output is correct
10 Correct 22 ms 35712 KB Output is correct
11 Correct 22 ms 35712 KB Output is correct
12 Correct 22 ms 35712 KB Output is correct
13 Correct 22 ms 35712 KB Output is correct
14 Correct 22 ms 35712 KB Output is correct
15 Correct 22 ms 35712 KB Output is correct
16 Correct 23 ms 35840 KB Output is correct
17 Correct 22 ms 35704 KB Output is correct
18 Correct 23 ms 35704 KB Output is correct
19 Correct 22 ms 35704 KB Output is correct
20 Correct 23 ms 35712 KB Output is correct
21 Correct 23 ms 35712 KB Output is correct
22 Correct 22 ms 35712 KB Output is correct
23 Correct 22 ms 35712 KB Output is correct
24 Correct 22 ms 35712 KB Output is correct
25 Correct 22 ms 35704 KB Output is correct
26 Correct 22 ms 35712 KB Output is correct
27 Correct 22 ms 35712 KB Output is correct
28 Correct 24 ms 35704 KB Output is correct
29 Correct 22 ms 35712 KB Output is correct
30 Correct 23 ms 35712 KB Output is correct
31 Correct 22 ms 35704 KB Output is correct
32 Correct 23 ms 35712 KB Output is correct
33 Correct 22 ms 35712 KB Output is correct
34 Correct 23 ms 35712 KB Output is correct
35 Correct 22 ms 35712 KB Output is correct
36 Correct 22 ms 35704 KB Output is correct
37 Correct 23 ms 35712 KB Output is correct
38 Correct 22 ms 35704 KB Output is correct
39 Correct 22 ms 35680 KB Output is correct
40 Correct 21 ms 35712 KB Output is correct
41 Correct 23 ms 35712 KB Output is correct
42 Correct 27 ms 35704 KB Output is correct
43 Correct 24 ms 35712 KB Output is correct
44 Correct 24 ms 35712 KB Output is correct
45 Correct 22 ms 35712 KB Output is correct
46 Correct 24 ms 35704 KB Output is correct
47 Correct 24 ms 35712 KB Output is correct
48 Correct 23 ms 35712 KB Output is correct
49 Correct 23 ms 35712 KB Output is correct
50 Correct 23 ms 35712 KB Output is correct
51 Correct 23 ms 35712 KB Output is correct
52 Correct 23 ms 35704 KB Output is correct
53 Correct 24 ms 35712 KB Output is correct
54 Correct 25 ms 35712 KB Output is correct
55 Correct 22 ms 35712 KB Output is correct
56 Correct 23 ms 35712 KB Output is correct
57 Correct 22 ms 35712 KB Output is correct
58 Runtime error 5 ms 512 KB Execution killed with signal 11 (could be triggered by violating memory limits)
59 Halted 0 ms 0 KB -