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Submission #718837

# Submission time Handle Problem Language Result Execution time Memory
718837 2023-04-05T00:51:49 Z Ahmed57 Lightning Conductor (POI11_pio) C++14
91 / 100
 343 ms 13100 KB 
#include <bits/stdc++.h>

using namespace std;
long long dp[500001];
long long arr[500001];
void dc(int l,int r,int optl,int optr){
    if(l>r)return ;
    int mid = (l+r)/2;
    long long best = optl;
    for(int cut = optl;cut<=min(mid,optr);cut++){
        if(arr[best]+sqrt(abs(mid-best))<arr[cut]+sqrt(abs(mid-cut))){
            best = cut;
        }
    }
    dp[mid]=max(dp[mid],arr[best]+(long long)ceil(sqrt(abs(mid-best))));
    int opt = best;
    dc(l,mid-1,optl,opt);
    dc(mid+1,r,opt,optr);
}
int main(){
    //ios_base::sync_with_stdio(false);cin.tie(0);cout.tie(0);
    int n;
    cin>>n;
    for(int i = 1;i<=n;i++){
        cin>>arr[i];
    }
    for(int i = 0;i<=n;i++)dp[i] = 0;
    dc(1,n,0,n-1);
    reverse(arr+1,arr+n+1);
    reverse(dp+1,dp+n+1);
    dc(1,n,0,n-1);
    reverse(dp+1,dp+n+1);
    reverse(arr+1,arr+n+1);
    for(int i = 1;i<=n;i++){
        cout<<dp[i]-arr[i]<<"\n";
    }
}

Subtask #1
9.0 / 9.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 212 KB Output is correct

Subtask #2
9.0 / 9.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 212 KB Output is correct

Subtask #3
9.0 / 9.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 212 KB Output is correct

Subtask #4
9.0 / 9.0

# Verdict Execution time Memory Grader output
1 Correct 19 ms 980 KB Output is correct

Subtask #5
9.0 / 9.0

# Verdict Execution time Memory Grader output
1 Correct 34 ms 1576 KB Output is correct

Subtask #6
0 / 9.0

# Verdict Execution time Memory Grader output
1 Correct 40 ms 1584 KB Output is correct
2 Incorrect 27 ms 1484 KB Output isn't correct
3 Halted 0 ms 0 KB -

Subtask #7
9.0 / 9.0

# Verdict Execution time Memory Grader output
1 Correct 63 ms 2188 KB Output is correct
2 Correct 63 ms 2116 KB Output is correct
3 Correct 53 ms 2716 KB Output is correct

Subtask #8
9.0 / 9.0

# Verdict Execution time Memory Grader output
1 Correct 144 ms 4932 KB Output is correct
2 Correct 137 ms 4692 KB Output is correct
3 Correct 120 ms 5452 KB Output is correct

Subtask #9
9.0 / 9.0

# Verdict Execution time Memory Grader output
1 Correct 236 ms 9200 KB Output is correct
2 Correct 233 ms 7196 KB Output is correct
3 Correct 201 ms 9204 KB Output is correct

Subtask #10
9.0 / 9.0

# Verdict Execution time Memory Grader output
1 Correct 343 ms 12972 KB Output is correct
2 Correct 326 ms 10316 KB Output is correct
3 Correct 269 ms 13088 KB Output is correct

Subtask #11
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 336 ms 10788 KB Output is correct
2 Correct 316 ms 10060 KB Output is correct
3 Correct 274 ms 13100 KB Output is correct