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Submission #168532

# Submission time Handle Problem Language Result Execution time Memory
168532 2019-12-13T12:41:27 Z muhammad_hokimiyon K blocks (IZhO14_blocks) C++14
100 / 100
 232 ms 80644 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;

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

void solve()
{
    cin >> n >> k;
    for( int i = 1; i <= n; i++ ){
        cin >> a[i];
        d[1][i] = max( d[1][i - 1] , a[i] );
    }
    for( int i = 2; i <= k; i++ ){
        d[i][i] = d[i - 1][i - 1] + a[i];
        stack < pair < ll , ll > > st;
        st.push({d[i - 1][i - 1] , a[i]});
        for( int j = i + 1; j <= n; j++ ){
            ll cnt = d[i - 1][j - 1];
            while( !st.empty() && st.top().se <= a[j] ){
                cnt = min( cnt , st.top().fi );
                st.pop();
            }
            if( st.empty() || st.top().fi + st.top().se > cnt + a[j] ){
                st.push({cnt , 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 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 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 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 376 KB Output is correct
2 Correct 2 ms 380 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 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 376 KB Output is correct
18 Correct 2 ms 376 KB Output is correct
19 Correct 2 ms 380 KB Output is correct
20 Correct 2 ms 504 KB Output is correct

Subtask #3
21.0 / 21.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 632 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 2 ms 376 KB Output is correct
9 Correct 2 ms 376 KB Output is correct
10 Correct 2 ms 380 KB Output is correct
11 Correct 2 ms 376 KB Output is correct
12 Correct 2 ms 380 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 888 KB Output is correct
16 Correct 2 ms 888 KB Output is correct
17 Correct 2 ms 632 KB Output is correct
18 Correct 2 ms 888 KB Output is correct
19 Correct 2 ms 888 KB Output is correct

Subtask #4
47.0 / 47.0

# Verdict Execution time Memory Grader output
1 Correct 7 ms 2552 KB Output is correct
2 Correct 7 ms 1272 KB Output is correct
3 Correct 11 ms 3448 KB Output is correct
4 Correct 55 ms 27744 KB Output is correct
5 Correct 154 ms 80060 KB Output is correct
6 Correct 17 ms 4176 KB Output is correct
7 Correct 77 ms 37160 KB Output is correct
8 Correct 2 ms 504 KB Output is correct
9 Correct 2 ms 632 KB Output is correct
10 Correct 2 ms 632 KB Output is correct
11 Correct 2 ms 632 KB Output is correct
12 Correct 2 ms 376 KB Output is correct
13 Correct 2 ms 504 KB Output is correct
14 Correct 18 ms 8824 KB Output is correct
15 Correct 4 ms 676 KB Output is correct
16 Correct 6 ms 2552 KB Output is correct
17 Correct 7 ms 1400 KB Output is correct
18 Correct 11 ms 3392 KB Output is correct
19 Correct 52 ms 27768 KB Output is correct
20 Correct 139 ms 80092 KB Output is correct
21 Correct 17 ms 4216 KB Output is correct
22 Correct 71 ms 36984 KB Output is correct
23 Correct 14 ms 2552 KB Output is correct
24 Correct 26 ms 9592 KB Output is correct
25 Correct 144 ms 80164 KB Output is correct
26 Correct 2 ms 376 KB Output is correct
27 Correct 2 ms 504 KB Output is correct
28 Correct 23 ms 8824 KB Output is correct
29 Correct 4 ms 760 KB Output is correct
30 Correct 8 ms 2552 KB Output is correct
31 Correct 7 ms 1272 KB Output is correct
32 Correct 13 ms 3696 KB Output is correct
33 Correct 79 ms 27992 KB Output is correct
34 Correct 232 ms 80644 KB Output is correct
35 Correct 19 ms 4532 KB Output is correct
36 Correct 112 ms 37544 KB Output is correct
37 Correct 3 ms 632 KB Output is correct
38 Correct 17 ms 8824 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