Submission #1073890

#	Time	Username	Problem	Language	Result	Execution time	Memory
1073890		ngrace	Bali Sculptures (APIO15_sculpture)	C++14	9 / 100	75 ms	600 KiB

sculpture

#include <bits/stdc++.h>
using namespace std;
#define v vector
#define ll long long
#define ii pair<int,int>
#define fi first
#define se second
#define on(i,mask) ((bool)((1<<(i)) & (mask)))

int main(){
    int N,A,B;
    cin>>N>>A>>B;
    v<ll> Y(N+1,0);
    v<ll> psum(N+1, 0);
    for(int i=1; i<=N; i++){
        cin>>Y[i];
        psum[i] = psum[i-1]+Y[i];
    }

    if(N<=20){
        ll ans = 1e18;
        for(int div = (1<<N); div<(1<<(N+1)); div++){
            int g = 1;
            int l=0;
            ll res = 0;
            for(int i=1; i<=N; i++){
                if(i!=1 && on(i-2,div)!=on(i-1,div)){
                    g++;
                    res = res | (psum[i-1] - psum[l]);
                    l=i-1;
                }
            }
            res = res | (psum[N]-psum[l]);

            if(A<=g && g<=B) ans = min(ans, res);
        }
        cout<<ans<<endl;
    }
}

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