Submission #1028607

#	Time	Username	Problem	Language	Result	Execution time	Memory
1028607		vjudge1	Bali Sculptures (APIO15_sculpture)	C++17	71 / 100	13 ms	596 KiB

sculpture

#include <bits/stdc++.h>
using namespace std;

#define int long long
int const N=105;
int const inf=1e14;

bool dp[N][N];
int dp2[2005];
int arr[N];
int n,A,B;
bool check(int MX){
    for (int i = 0; i <=n; ++i)
        for (int j = 0; j <=n; ++j)
            dp[i][j]=0;
    dp[0][0]=1;
    for(int i=1;i<=n;i++)
        for(int k=1;k<=i;k++){
            int sm=0;
            for(int j=i;j>=1;j--){
                sm+=arr[j];
                if(dp[j-1][k-1] && ((MX|sm)==MX))
                    dp[i][k]=1;
            }
        } 
    for(int k=A;k<=B;k++)
        if(dp[n][k])
            return 1;
    return 0;
}
bool check2(int MX){
    for (int i = 0; i <=n; ++i)
        dp2[i]=inf;
    dp2[0]=0;
    for(int i=0;i<n;i++){
        int sm=0;
        for(int j=i+1;j<=n;j++){
            sm+=arr[j];
            if((MX|sm)==MX)
                dp2[j]=min(dp2[j],dp2[i]+1);
        }
    }
    if(A<=dp2[n] && dp2[n]<=B)
        return 1;
    return 0;
}


signed main(){
    cin>>n>>A>>B;
    for (int i = 1; i <=n; ++i)
        cin>>arr[i];
    if(A==1){
        int one=1;
        int ans=(one<<50)-1;
        for(int b=49;b>=0;b--)
            if(check2(ans-(one<<b)))
                ans-=(one<<b);
        cout<<ans<<endl;
        return 0;
    }
    int one=1;
    int ans=(one<<44)-1;
    for(int b=43;b>=0;b--)
        if(check(ans-(one<<b)))
            ans-=(one<<b);
    cout<<ans<<endl;
    return 0;
}

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