Submission #1049062

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
1049062	2024-08-08 12:55:50	ihceker	Split the sequence (APIO14_sequence)	C++14	50 / 100	2063 ms	32604 KiB

sequence

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#include<bits/stdc++.h>
#define int long long
#define MOD 1000000007
#define all(x) x.begin(),x.end()
#define ff first
#define ss second
#define pb push_back
#define fast ios_base::sync_with_stdio(false);cin.tie(NULL);cout.tie(NULL);
 
using namespace std;
 
int32_t main(){
  int n,k;
  cin>>n>>k;
  vector<vector<int>>dp(n+1,vector<int>(k+1,-1e15)),pre2(n+1,vector<int>(k+1));
  vector<int>arr(n+1),pre(n+1);
  pre[0]=0;
  for(int i=1;i<=n;i++){
    cin>>arr[i];
    pre[i]=pre[i-1]+arr[i];
  }
  dp[0][0]=0;
  for(int j=1;j<=k;j++){
    for(int i=j;i<=n-1;i++){
      for(int k=i-1;k>=j-1;k--){
        dp[i][j]=max(dp[i][j],dp[k][j-1]+pre[k]*(pre[i]-pre[k]));
        if(dp[i][j]==dp[k][j-1]+pre[k]*(pre[i]-pre[k])){
          pre2[i][j]=k;
        }
      }
 
 
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• Subtask 1: 11 / 11
• Subtask 2: 11 / 11
• Subtask 3: 11 / 11
• Subtask 4: 17 / 17
• Subtask 5: 0 / 21
• Subtask 6: 0 / 29