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Submission #491077

# Submission time Handle Problem Language Result Execution time Memory
491077 2021-11-30T13:16:14 Z tar_palantir K blocks (IZhO14_blocks) C++17
0 / 100
 36 ms 87200 KB 
#include<bits/stdc++.h>
#define int     long long
#define task    "block"
using namespace std;
using ii=pair<int,int>;

const int mn=1e5+11;
const int mk=111;

int n,k;
int a[mn];
int dp[mn][mk];

ii st[mn];
int32_t main()
{
    cin.tie(0)->sync_with_stdio(0);

    cin>>n>>k;
    
    for(int i=1;i<=n;i++)
    	cin>>a[i];
    
    memset(dp,0x3f,sizeof(dp));
    dp[0][1]=0;
    for(int i=1;i<=n;i++)
    	dp[i][1]=max(dp[i-1][1],a[i]);
    for(int j=2;j<=k;j++){
    	int cnt=0;
    	for(int i=j;i<=n;i++){
    		int mval=dp[i-1][j-1];
    		
    		while(cnt && a[st[cnt].first]<=a[i]){
    			mval=min(mval,st[cnt].second);
    			cnt--;
    		}
    		
    		dp[i][j]=min(dp[st[cnt].first][j],mval+a[i]);
    		st[++cnt]=ii(j,mval);
    	}	
    }
    
    cout<<dp[n][k];
}

Subtask #1
0 / 14.0

# Verdict Execution time Memory Grader output
1 Correct 29 ms 87116 KB Output is correct
2 Correct 30 ms 87184 KB Output is correct
3 Correct 30 ms 87100 KB Output is correct
4 Correct 31 ms 87176 KB Output is correct
5 Correct 35 ms 87100 KB Output is correct
6 Correct 30 ms 87116 KB Output is correct
7 Correct 30 ms 87116 KB Output is correct
8 Correct 31 ms 87184 KB Output is correct
9 Correct 31 ms 87196 KB Output is correct
10 Correct 30 ms 87144 KB Output is correct
11 Correct 32 ms 87108 KB Output is correct
12 Correct 36 ms 87192 KB Output is correct
13 Incorrect 36 ms 87156 KB Output isn't correct
14 Halted 0 ms 0 KB -

Subtask #2
0 / 18.0

# Verdict Execution time Memory Grader output
1 Correct 31 ms 87108 KB Output is correct
2 Correct 31 ms 87108 KB Output is correct
3 Correct 31 ms 87160 KB Output is correct
4 Correct 33 ms 87152 KB Output is correct
5 Correct 31 ms 87108 KB Output is correct
6 Correct 31 ms 87116 KB Output is correct
7 Correct 31 ms 87116 KB Output is correct
8 Correct 33 ms 87144 KB Output is correct
9 Correct 32 ms 87136 KB Output is correct
10 Correct 32 ms 87116 KB Output is correct
11 Correct 33 ms 87200 KB Output is correct
12 Correct 36 ms 87080 KB Output is correct
13 Correct 31 ms 87192 KB Output is correct
14 Incorrect 32 ms 87108 KB Output isn't correct
15 Halted 0 ms 0 KB -

Subtask #3
0 / 21.0

# Verdict Execution time Memory Grader output
1 Correct 29 ms 87116 KB Output is correct
2 Correct 30 ms 87184 KB Output is correct
3 Correct 30 ms 87100 KB Output is correct
4 Correct 31 ms 87176 KB Output is correct
5 Correct 35 ms 87100 KB Output is correct
6 Correct 30 ms 87116 KB Output is correct
7 Correct 30 ms 87116 KB Output is correct
8 Correct 31 ms 87184 KB Output is correct
9 Correct 31 ms 87196 KB Output is correct
10 Correct 30 ms 87144 KB Output is correct
11 Correct 32 ms 87108 KB Output is correct
12 Correct 36 ms 87192 KB Output is correct
13 Incorrect 36 ms 87156 KB Output isn't correct
14 Halted 0 ms 0 KB -

Subtask #4
0 / 47.0

# Verdict Execution time Memory Grader output
1 Correct 29 ms 87116 KB Output is correct
2 Correct 30 ms 87184 KB Output is correct
3 Correct 30 ms 87100 KB Output is correct
4 Correct 31 ms 87176 KB Output is correct
5 Correct 35 ms 87100 KB Output is correct
6 Correct 30 ms 87116 KB Output is correct
7 Correct 30 ms 87116 KB Output is correct
8 Correct 31 ms 87184 KB Output is correct
9 Correct 31 ms 87196 KB Output is correct
10 Correct 30 ms 87144 KB Output is correct
11 Correct 32 ms 87108 KB Output is correct
12 Correct 36 ms 87192 KB Output is correct
13 Incorrect 36 ms 87156 KB Output isn't correct
14 Halted 0 ms 0 KB -