oj.uz

Submission #272712

# Submission time Handle Problem Language Result Execution time Memory
272712 2020-08-18T13:52:24 Z Killer2501 K blocks (IZhO14_blocks) C++14
100 / 100
 361 ms 82456 KB 
#include <bits/stdc++.h>
#define ll long long
#define pb push_back
#define task "blocks"
#define fi first
#define se second
#define pll pair<ll, ll>
using namespace std;
const ll N = 1e5 + 5;
const ll mod = 1e9 + 7;
ll n, sum= 0, m, tong, k, ans, T, t;

ll a[N], dp[N][102];

char c[N];
inline void sol()
{
    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 <= k; j ++)
            dp[i][j] = mod;
    }
    dp[0][1] = 0;
    for(int i = 1; i <= n; i ++)
    {
        dp[i][1] = max(dp[i-1][1], a[i]);
        //cout << dp[i][1] <<" ";
    }
    for(int j = 2; j <= k; j ++)
    {
        stack<pll> ds;
        for(int i = j; i <= n; i ++)
        {
            ll mn = dp[i-1][j-1];
            while(!ds.empty() && a[ds.top().se] <= a[i])
            {

                mn = min(mn, ds.top().fi);
                ds.pop();
            }
            dp[i][j] = min(dp[ds.empty() ? 0 : ds.top().se][j], mn + a[i]);
            ds.push({mn, i});
            //cout << dp[i][j] <<' ';
        }
        //cout << '\n';
    }
    cout << dp[n][k] << '\n';
}
int main()
{
    ios_base::sync_with_stdio(0);
    cin.tie(0);
    cout.tie(0);
    sol();
  return 0;
}

Subtask #1
14.0 / 14.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 384 KB Output is correct
2 Correct 0 ms 384 KB Output is correct
3 Correct 0 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 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 1 ms 384 KB Output is correct
11 Correct 0 ms 384 KB Output is correct
12 Correct 1 ms 512 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 0 ms 384 KB Output is correct
2 Correct 0 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 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 1 ms 384 KB Output is correct
12 Correct 1 ms 416 KB Output is correct
13 Correct 1 ms 384 KB Output is correct
14 Correct 0 ms 384 KB Output is correct
15 Correct 0 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 384 KB Output is correct
2 Correct 1 ms 384 KB Output is correct
3 Correct 0 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 0 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 512 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

Subtask #4
47.0 / 47.0

# Verdict Execution time Memory Grader output
1 Correct 8 ms 8448 KB Output is correct
2 Correct 23 ms 36480 KB Output is correct
3 Correct 29 ms 36472 KB Output is correct
4 Correct 78 ms 36480 KB Output is correct
5 Correct 255 ms 81656 KB Output is correct
6 Correct 58 ms 81668 KB Output is correct
7 Correct 157 ms 81784 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 1152 KB Output is correct
13 Correct 1 ms 1152 KB Output is correct
14 Correct 22 ms 8448 KB Output is correct
15 Correct 7 ms 8448 KB Output is correct
16 Correct 9 ms 8448 KB Output is correct
17 Correct 26 ms 36472 KB Output is correct
18 Correct 31 ms 36480 KB Output is correct
19 Correct 85 ms 36480 KB Output is correct
20 Correct 361 ms 81784 KB Output is correct
21 Correct 53 ms 81784 KB Output is correct
22 Correct 158 ms 81656 KB Output is correct
23 Correct 58 ms 81700 KB Output is correct
24 Correct 72 ms 81660 KB Output is correct
25 Correct 287 ms 81784 KB Output is correct
26 Correct 1 ms 1152 KB Output is correct
27 Correct 1 ms 1168 KB Output is correct
28 Correct 21 ms 8576 KB Output is correct
29 Correct 5 ms 8576 KB Output is correct
30 Correct 10 ms 8576 KB Output is correct
31 Correct 24 ms 36472 KB Output is correct
32 Correct 28 ms 36736 KB Output is correct
33 Correct 87 ms 36800 KB Output is correct
34 Correct 341 ms 82456 KB Output is correct
35 Correct 65 ms 82228 KB Output is correct
36 Correct 166 ms 82344 KB Output is correct
37 Correct 6 ms 8448 KB Output is correct
38 Correct 20 ms 8448 KB Output is correct
39 Correct 1 ms 1152 KB Output is correct
40 Correct 2 ms 1152 KB Output is correct
41 Correct 1 ms 384 KB Output is correct
42 Correct 1 ms 308 KB Output is correct