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Submission #105368

# Submission time Handle Problem Language Result Execution time Memory
105368 2019-04-11T14:39:02 Z thanhtraf K blocks (IZhO14_blocks) C++11
100 / 100
 681 ms 41116 KB 
 #include<bits/stdc++.h>
 using namespace std;

 #define task "data"

 const int maxn=1e5+5;
 const int vc=-1e9+5;
 int dp[maxn][100] , n , a[maxn] , k ;
  typedef pair<int,int> ii;
  #define fi first
  #define se second

  main()
   {
       //freopen(task".inp","r",stdin);
      // freopen(task".out","w",stdout);

       scanf("%d%d",&n,&k);

       for (int i=1;i<=n;i++) scanf("%d",&a[i]);

       memset(dp, 0x3f, sizeof dp);
       //cout<<dp[1][0];
        dp[0][1]=0;

          for (int i=1;i<=n;i++)
           {
                dp[i][1]=max(a[i],dp[i-1][1]);
                // cout<<dp[i][1];
           }

        for (int i=2;i<=k;i++)
        {
            stack<ii> s;
            for (int j=i;j<=n;j++)
            {
                int minf=dp[j-1][i-1];
                while (s.size()&&a[j]>=a[s.top().se])
                {
                    minf=min(minf,s.top().fi);
                    s.pop();
                }
                //cout<<minf<<endl;
                    if(s.size()==0)
                    dp[j][i]=dp[0][i];
                    else
                        dp[j][i]=dp[s.top().se][i];
                dp[j][i]=min(minf+a[j],dp[j][i]);
                s.push(ii(minf,j));;
            }
        }

        cout<<dp[n][k];

        return 0;
   }

Compilation message

blocks.cpp:14:8: warning: ISO C++ forbids declaration of 'main' with no type [-Wreturn-type]
   main()
        ^
blocks.cpp: In function 'int main()':
blocks.cpp:19:13: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
        scanf("%d%d",&n,&k);
        ~~~~~^~~~~~~~~~~~~~
blocks.cpp:21:36: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
        for (int i=1;i<=n;i++) scanf("%d",&a[i]);
                               ~~~~~^~~~~~~~~~~~

Subtask #1
14.0 / 14.0

# Verdict Execution time Memory Grader output
1 Correct 35 ms 39544 KB Output is correct
2 Correct 33 ms 39416 KB Output is correct
3 Correct 33 ms 39416 KB Output is correct
4 Correct 34 ms 39444 KB Output is correct
5 Correct 32 ms 39544 KB Output is correct
6 Correct 33 ms 39544 KB Output is correct
7 Correct 33 ms 39544 KB Output is correct
8 Correct 33 ms 39416 KB Output is correct
9 Correct 36 ms 39544 KB Output is correct
10 Correct 31 ms 39552 KB Output is correct
11 Correct 38 ms 39420 KB Output is correct
12 Correct 34 ms 39544 KB Output is correct
13 Correct 34 ms 39544 KB Output is correct
14 Correct 36 ms 39544 KB Output is correct
15 Correct 35 ms 39544 KB Output is correct
16 Correct 37 ms 39416 KB Output is correct
17 Correct 35 ms 39544 KB Output is correct
18 Correct 34 ms 39416 KB Output is correct

Subtask #2
18.0 / 18.0

# Verdict Execution time Memory Grader output
1 Correct 38 ms 39416 KB Output is correct
2 Correct 38 ms 39416 KB Output is correct
3 Correct 34 ms 39416 KB Output is correct
4 Correct 32 ms 39500 KB Output is correct
5 Correct 33 ms 39544 KB Output is correct
6 Correct 33 ms 39552 KB Output is correct
7 Correct 34 ms 39416 KB Output is correct
8 Correct 37 ms 39516 KB Output is correct
9 Correct 32 ms 39416 KB Output is correct
10 Correct 35 ms 39544 KB Output is correct
11 Correct 38 ms 39420 KB Output is correct
12 Correct 34 ms 39544 KB Output is correct
13 Correct 37 ms 39416 KB Output is correct
14 Correct 33 ms 39544 KB Output is correct
15 Correct 38 ms 39416 KB Output is correct
16 Correct 34 ms 39416 KB Output is correct
17 Correct 32 ms 39416 KB Output is correct
18 Correct 34 ms 39424 KB Output is correct
19 Correct 38 ms 39420 KB Output is correct
20 Correct 32 ms 39424 KB Output is correct

Subtask #3
21.0 / 21.0

# Verdict Execution time Memory Grader output
1 Correct 34 ms 39544 KB Output is correct
2 Correct 36 ms 39544 KB Output is correct
3 Correct 34 ms 39416 KB Output is correct
4 Correct 35 ms 39544 KB Output is correct
5 Correct 34 ms 39544 KB Output is correct
6 Correct 34 ms 39416 KB Output is correct
7 Correct 34 ms 39468 KB Output is correct
8 Correct 38 ms 39416 KB Output is correct
9 Correct 37 ms 39416 KB Output is correct
10 Correct 37 ms 39416 KB Output is correct
11 Correct 37 ms 39544 KB Output is correct
12 Correct 34 ms 39544 KB Output is correct
13 Correct 33 ms 39384 KB Output is correct
14 Correct 33 ms 39424 KB Output is correct
15 Correct 35 ms 39536 KB Output is correct
16 Correct 32 ms 39544 KB Output is correct
17 Correct 33 ms 39416 KB Output is correct
18 Correct 33 ms 39416 KB Output is correct
19 Correct 33 ms 39428 KB Output is correct

Subtask #4
47.0 / 47.0

# Verdict Execution time Memory Grader output
1 Correct 38 ms 39544 KB Output is correct
2 Correct 43 ms 39936 KB Output is correct
3 Correct 52 ms 39928 KB Output is correct
4 Correct 170 ms 40056 KB Output is correct
5 Correct 609 ms 40628 KB Output is correct
6 Correct 54 ms 40568 KB Output is correct
7 Correct 268 ms 40568 KB Output is correct
8 Correct 37 ms 39544 KB Output is correct
9 Correct 35 ms 39416 KB Output is correct
10 Correct 39 ms 39416 KB Output is correct
11 Correct 38 ms 39416 KB Output is correct
12 Correct 33 ms 39424 KB Output is correct
13 Correct 34 ms 39416 KB Output is correct
14 Correct 48 ms 39544 KB Output is correct
15 Correct 34 ms 39544 KB Output is correct
16 Correct 39 ms 39544 KB Output is correct
17 Correct 41 ms 39928 KB Output is correct
18 Correct 63 ms 39928 KB Output is correct
19 Correct 188 ms 40056 KB Output is correct
20 Correct 621 ms 40696 KB Output is correct
21 Correct 60 ms 40568 KB Output is correct
22 Correct 311 ms 40568 KB Output is correct
23 Correct 50 ms 40568 KB Output is correct
24 Correct 90 ms 40568 KB Output is correct
25 Correct 484 ms 40728 KB Output is correct
26 Correct 32 ms 39544 KB Output is correct
27 Correct 33 ms 39544 KB Output is correct
28 Correct 69 ms 39616 KB Output is correct
29 Correct 33 ms 39544 KB Output is correct
30 Correct 47 ms 39672 KB Output is correct
31 Correct 39 ms 39932 KB Output is correct
32 Correct 51 ms 40160 KB Output is correct
33 Correct 177 ms 40180 KB Output is correct
34 Correct 681 ms 41116 KB Output is correct
35 Correct 53 ms 40912 KB Output is correct
36 Correct 263 ms 40876 KB Output is correct
37 Correct 41 ms 39580 KB Output is correct
38 Correct 52 ms 39544 KB Output is correct
39 Correct 36 ms 39544 KB Output is correct
40 Correct 34 ms 39544 KB Output is correct
41 Correct 37 ms 39456 KB Output is correct
42 Correct 34 ms 39544 KB Output is correct