Submission #385878

#	Time	Username	Problem	Language	Result	Execution time	Memory
385878		Nordway	Bali Sculptures (APIO15_sculpture)	C++17	0 / 100	2 ms	364 KiB

sculpture

#include<bits/stdc++.h>
#include <ext/pb_ds/assoc_container.hpp>
#define x first
#define y second
#define pb push_back
#define mp make_pair
#define all(v) v.begin(),v.end()
#define sz(v) (int)v.size()
#define up_b upper_bound
#define low_b lower_bound
#define nl '\n'

using namespace std;
using namespace __gnu_pbds;

typedef long long ll;
typedef long double ld;

typedef tree<int,null_type,less<int>,rb_tree_tag,tree_order_statistics_node_update>ordered_set;

const int N=1e3+1;
const int M=1e6+1;
const ll inf=1e9+11;
const ld EPS=1e-6;
const int INF=1e9;
const ll mod=/*999999001*/1e9+7;
const int dx[4]={1,0,0,-1};
const int dy[4]={0,1,-1,0};

ll a[N];
ll dp[N][N];

void compute(int i,int l,int r,int optl,int optr){
  if(l>r)return ;
  int mid=(l+r)/2;
  int opt=-1;
  dp[i][mid]=INF;
  for(int k=max(i,optl);k<=min(mid,optr);k++){
    if((dp[i-1][k-1]|(a[mid]-a[k-1]))<dp[i][mid]){
      dp[i][mid]=(dp[i-1][k-1]|(a[mid]-a[k-1]));
      opt=k;
    }
  }
  compute(i,l,mid-1,optl,opt);
  compute(i,mid+1,r,opt,optr);
}

void solve(){
  int n;
  cin>>n;
  int l,r;
  cin>>l>>r;
  for(int i=1;i<=n;i++){
    cin>>a[i];
    a[i]+=a[i-1];
  }
  for(int i=1;i<=n;i++){
    dp[1][i]=a[i];
  }
  ll ans=INF;
  if(l==1)ans=min(ans,dp[1][n]);
  for(int i=2;i<=r;i++){
    compute(i,1,n,1,n);
    if(i>=l)ans=min(ans,dp[i][n]);
  }
  cout<<ans;
}

int main(){
  ios_base::sync_with_stdio(0);
  cin.tie(0),cout.tie(0);
  int T=1;
  //cin>>T;
  for(int i=1;i<=T;i++){
    solve();
    cout<<nl;
  }
  return 0;
}

• Subtask 1: 0 / 9
• Subtask 2: 0 / 16
• Subtask 3: 0 / 21
• Subtask 4: 0 / 25
• Subtask 5: 0 / 29