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Submission #173701

# Submission time Handle Problem Language Result Execution time Memory
173701 2020-01-05T07:26:47 Z itgl K blocks (IZhO14_blocks) C++14
100 / 100
 631 ms 43084 KB 
#include<bits/stdc++.h>
#define pb push_back
using namespace std;
int n, k;
int a[100005];
int dp[100005][105];

int main(){
  cin >> n >> k;
  int sum=0;
  for(int i=1;i<=n;i++){
    cin >> a[i];
    sum+=a[i];

  }
  memset(dp,1e9+7,sizeof(dp));
  dp[0][1]=0;
  for(int i=1;i<=n;i++){
    dp[i][1]=max(dp[i-1][1],a[i]);
  }
  dp[0][1]=1e9+7;

  for(int i=2;i<=k;i++){
    stack<int> pval, val;
    for(int j=1;j<=n;j++){
      int x = dp[j-1][i-1];
      while(!pval.empty()&&a[pval.top()]<a[j]){
        x=min(x,val.top());
        pval.pop();
        val.pop();
      }

      if(pval.size()){
        dp[j][i]=dp[pval.top()][i];

      }
      pval.push(j);
      val.push(min(dp[j][i-1],x));

      dp[j][i]=min(dp[j][i],x+a[j]);

    }
  }

  cout << dp[n][k] << endl;
  return 0;
}
// 10 3 7 9 21 3 9 10 4

Subtask #1
14.0 / 14.0

# Verdict Execution time Memory Grader output
1 Correct 36 ms 41528 KB Output is correct
2 Correct 36 ms 41464 KB Output is correct
3 Correct 37 ms 41464 KB Output is correct
4 Correct 37 ms 41464 KB Output is correct
5 Correct 36 ms 41464 KB Output is correct
6 Correct 36 ms 41464 KB Output is correct
7 Correct 36 ms 41464 KB Output is correct
8 Correct 36 ms 41464 KB Output is correct
9 Correct 36 ms 41464 KB Output is correct
10 Correct 36 ms 41464 KB Output is correct
11 Correct 36 ms 41468 KB Output is correct
12 Correct 36 ms 41464 KB Output is correct
13 Correct 36 ms 41468 KB Output is correct
14 Correct 36 ms 41464 KB Output is correct
15 Correct 36 ms 41464 KB Output is correct
16 Correct 37 ms 41464 KB Output is correct
17 Correct 32 ms 41464 KB Output is correct
18 Correct 37 ms 41464 KB Output is correct

Subtask #2
18.0 / 18.0

# Verdict Execution time Memory Grader output
1 Correct 36 ms 41464 KB Output is correct
2 Correct 36 ms 41440 KB Output is correct
3 Correct 37 ms 41384 KB Output is correct
4 Correct 36 ms 41464 KB Output is correct
5 Correct 36 ms 41464 KB Output is correct
6 Correct 36 ms 41464 KB Output is correct
7 Correct 36 ms 41464 KB Output is correct
8 Correct 36 ms 41440 KB Output is correct
9 Correct 36 ms 41464 KB Output is correct
10 Correct 36 ms 41464 KB Output is correct
11 Correct 36 ms 41512 KB Output is correct
12 Correct 36 ms 41464 KB Output is correct
13 Correct 36 ms 41464 KB Output is correct
14 Correct 36 ms 41464 KB Output is correct
15 Correct 41 ms 41464 KB Output is correct
16 Correct 36 ms 41480 KB Output is correct
17 Correct 36 ms 41464 KB Output is correct
18 Correct 36 ms 41464 KB Output is correct
19 Correct 37 ms 41456 KB Output is correct
20 Correct 36 ms 41336 KB Output is correct

Subtask #3
21.0 / 21.0

# Verdict Execution time Memory Grader output
1 Correct 36 ms 41464 KB Output is correct
2 Correct 36 ms 41464 KB Output is correct
3 Correct 41 ms 41464 KB Output is correct
4 Correct 36 ms 41464 KB Output is correct
5 Correct 36 ms 41464 KB Output is correct
6 Correct 36 ms 41464 KB Output is correct
7 Correct 36 ms 41464 KB Output is correct
8 Correct 36 ms 41464 KB Output is correct
9 Correct 36 ms 41464 KB Output is correct
10 Correct 40 ms 41464 KB Output is correct
11 Correct 36 ms 41464 KB Output is correct
12 Correct 36 ms 41464 KB Output is correct
13 Correct 37 ms 41464 KB Output is correct
14 Correct 37 ms 41464 KB Output is correct
15 Correct 37 ms 41464 KB Output is correct
16 Correct 36 ms 41360 KB Output is correct
17 Correct 37 ms 41464 KB Output is correct
18 Correct 36 ms 41364 KB Output is correct
19 Correct 36 ms 41464 KB Output is correct

Subtask #4
47.0 / 47.0

# Verdict Execution time Memory Grader output
1 Correct 48 ms 41460 KB Output is correct
2 Correct 61 ms 41848 KB Output is correct
3 Correct 71 ms 41976 KB Output is correct
4 Correct 152 ms 41836 KB Output is correct
5 Correct 482 ms 42616 KB Output is correct
6 Correct 113 ms 42508 KB Output is correct
7 Correct 280 ms 42660 KB Output is correct
8 Correct 36 ms 41464 KB Output is correct
9 Correct 36 ms 41464 KB Output is correct
10 Correct 36 ms 41464 KB Output is correct
11 Correct 36 ms 41436 KB Output is correct
12 Correct 37 ms 41464 KB Output is correct
13 Correct 37 ms 41464 KB Output is correct
14 Correct 75 ms 41636 KB Output is correct
15 Correct 42 ms 41596 KB Output is correct
16 Correct 50 ms 41592 KB Output is correct
17 Correct 61 ms 41820 KB Output is correct
18 Correct 70 ms 41976 KB Output is correct
19 Correct 175 ms 41940 KB Output is correct
20 Correct 547 ms 42616 KB Output is correct
21 Correct 99 ms 42488 KB Output is correct
22 Correct 314 ms 42588 KB Output is correct
23 Correct 94 ms 42616 KB Output is correct
24 Correct 133 ms 42488 KB Output is correct
25 Correct 631 ms 42616 KB Output is correct
26 Correct 37 ms 41464 KB Output is correct
27 Correct 38 ms 41468 KB Output is correct
28 Correct 68 ms 41592 KB Output is correct
29 Correct 43 ms 41592 KB Output is correct
30 Correct 49 ms 41592 KB Output is correct
31 Correct 62 ms 41976 KB Output is correct
32 Correct 70 ms 42124 KB Output is correct
33 Correct 193 ms 42132 KB Output is correct
34 Correct 440 ms 43084 KB Output is correct
35 Correct 100 ms 42888 KB Output is correct
36 Correct 276 ms 42932 KB Output is correct
37 Correct 42 ms 41592 KB Output is correct
38 Correct 67 ms 41464 KB Output is correct
39 Correct 38 ms 41464 KB Output is correct
40 Correct 37 ms 41464 KB Output is correct
41 Correct 39 ms 41464 KB Output is correct
42 Correct 36 ms 41464 KB Output is correct