oj.uz

Submission #167404

# Submission time Handle Problem Language Result Execution time Memory
167404 2019-12-08T08:29:08 Z muhammad_hokimiyon K blocks (IZhO14_blocks) C++14
100 / 100
 182 ms 40948 KB 
#include <bits/stdc++.h>

#pragma GCC optimize("Ofast")

#define fi first
#define se second
#define ll long long

using namespace std;

const int N = 1e5 + 7;
const int mod = 1e9 + 7;

int n,k;
int a[N];
int d[111][N];

void solve()
{
    cin >> n >> k;
    int mx = 0;
    for( int i = 1; i <= n; i++ ){
        cin >> a[i];
        mx = max( mx , a[i] );
        d[1][i] = mx;
    }
    for( int i = 2; i <= k; i++ ){
        d[i][i] = d[i - 1][i - 1] + a[i];
        stack < pair < int , int > > st;
        st.push({d[i - 1][i - 1] , a[i]});
        for( int j = i + 1; j <= n; j++ ){
            int c = d[i - 1][j - 1];
            while( !st.empty() && st.top().se <= a[j] ){
                c = min( c , st.top().fi );
                st.pop();
            }
            if( st.empty() || c + a[j] <= st.top().fi + st.top().se ){
                st.push({c , a[j]});
            }
            d[i][j] = st.top().fi + st.top().se;
        }
    }
    cout << d[k][n];
}

int main()
{
    ios_base::sync_with_stdio(0);
    cin.tie(0); cout.tie(0);
    //freopen( "input.txt" , "r" , stdin );
    //freopen( "output.txt" , "w" , stdout );

    int t = 1;//cin >> t;
    while( t-- ){
        solve();
    }
}

Subtask #1
14.0 / 14.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 376 KB Output is correct
2 Correct 2 ms 376 KB Output is correct
3 Correct 2 ms 376 KB Output is correct
4 Correct 2 ms 376 KB Output is correct
5 Correct 2 ms 504 KB Output is correct
6 Correct 2 ms 376 KB Output is correct
7 Correct 2 ms 376 KB Output is correct
8 Correct 2 ms 380 KB Output is correct
9 Correct 2 ms 376 KB Output is correct
10 Correct 2 ms 376 KB Output is correct
11 Correct 2 ms 376 KB Output is correct
12 Correct 2 ms 376 KB Output is correct
13 Correct 2 ms 376 KB Output is correct
14 Correct 2 ms 376 KB Output is correct
15 Correct 2 ms 376 KB Output is correct
16 Correct 2 ms 376 KB Output is correct
17 Correct 2 ms 376 KB Output is correct
18 Correct 2 ms 376 KB Output is correct

Subtask #2
18.0 / 18.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 380 KB Output is correct
2 Correct 2 ms 376 KB Output is correct
3 Correct 2 ms 376 KB Output is correct
4 Correct 2 ms 376 KB Output is correct
5 Correct 2 ms 376 KB Output is correct
6 Correct 2 ms 420 KB Output is correct
7 Correct 2 ms 376 KB Output is correct
8 Correct 2 ms 376 KB Output is correct
9 Correct 2 ms 376 KB Output is correct
10 Correct 2 ms 376 KB Output is correct
11 Correct 2 ms 376 KB Output is correct
12 Correct 2 ms 376 KB Output is correct
13 Correct 2 ms 376 KB Output is correct
14 Correct 2 ms 376 KB Output is correct
15 Correct 2 ms 376 KB Output is correct
16 Correct 2 ms 376 KB Output is correct
17 Correct 2 ms 388 KB Output is correct
18 Correct 2 ms 376 KB Output is correct
19 Correct 2 ms 376 KB Output is correct
20 Correct 2 ms 380 KB Output is correct

Subtask #3
21.0 / 21.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 504 KB Output is correct
2 Correct 2 ms 376 KB Output is correct
3 Correct 2 ms 376 KB Output is correct
4 Correct 2 ms 376 KB Output is correct
5 Correct 2 ms 376 KB Output is correct
6 Correct 2 ms 376 KB Output is correct
7 Correct 2 ms 376 KB Output is correct
8 Correct 3 ms 452 KB Output is correct
9 Correct 4 ms 376 KB Output is correct
10 Correct 2 ms 376 KB Output is correct
11 Correct 2 ms 376 KB Output is correct
12 Correct 2 ms 376 KB Output is correct
13 Correct 2 ms 504 KB Output is correct
14 Correct 2 ms 504 KB Output is correct
15 Correct 2 ms 760 KB Output is correct
16 Correct 2 ms 760 KB Output is correct
17 Correct 2 ms 632 KB Output is correct
18 Correct 2 ms 760 KB Output is correct
19 Correct 3 ms 864 KB Output is correct

Subtask #4
47.0 / 47.0

# Verdict Execution time Memory Grader output
1 Correct 6 ms 1528 KB Output is correct
2 Correct 8 ms 1016 KB Output is correct
3 Correct 11 ms 2044 KB Output is correct
4 Correct 46 ms 14328 KB Output is correct
5 Correct 129 ms 40568 KB Output is correct
6 Correct 17 ms 2552 KB Output is correct
7 Correct 66 ms 19036 KB Output is correct
8 Correct 2 ms 504 KB Output is correct
9 Correct 2 ms 504 KB Output is correct
10 Correct 2 ms 504 KB Output is correct
11 Correct 2 ms 632 KB Output is correct
12 Correct 2 ms 376 KB Output is correct
13 Correct 3 ms 376 KB Output is correct
14 Correct 16 ms 4856 KB Output is correct
15 Correct 17 ms 504 KB Output is correct
16 Correct 6 ms 1500 KB Output is correct
17 Correct 8 ms 1016 KB Output is correct
18 Correct 12 ms 2040 KB Output is correct
19 Correct 45 ms 14328 KB Output is correct
20 Correct 119 ms 40568 KB Output is correct
21 Correct 17 ms 2552 KB Output is correct
22 Correct 62 ms 19068 KB Output is correct
23 Correct 15 ms 1784 KB Output is correct
24 Correct 24 ms 5368 KB Output is correct
25 Correct 124 ms 40544 KB Output is correct
26 Correct 2 ms 376 KB Output is correct
27 Correct 2 ms 504 KB Output is correct
28 Correct 19 ms 4856 KB Output is correct
29 Correct 3 ms 504 KB Output is correct
30 Correct 7 ms 1528 KB Output is correct
31 Correct 8 ms 1016 KB Output is correct
32 Correct 13 ms 2164 KB Output is correct
33 Correct 88 ms 14532 KB Output is correct
34 Correct 182 ms 40948 KB Output is correct
35 Correct 18 ms 2772 KB Output is correct
36 Correct 89 ms 19444 KB Output is correct
37 Correct 4 ms 504 KB Output is correct
38 Correct 15 ms 4984 KB Output is correct
39 Correct 2 ms 504 KB Output is correct
40 Correct 2 ms 376 KB Output is correct
41 Correct 2 ms 376 KB Output is correct
42 Correct 2 ms 376 KB Output is correct