Submission #418064

#	Time	Username	Problem	Language	Result	Execution time	Memory
418064		cgiosy	Bali Sculptures (APIO15_sculpture)	C++17	100 / 100	104 ms	452 KiB

sculpture

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

int main() {
	ios::sync_with_stdio(0);cin.tie(0);
	int N, S, E;
	cin>>N>>S>>E;
	int A[N+1];
	for(int i=1; i<=N; i++) cin>>A[i];
	ll m=(1LL<<41)-1;
	int L[N+1], R[N+1];
	L[0]=R[0]=0;
	for(int k=40; k>=0; k--) {
		m^=1LL<<k;
		for(int i=1; i<=N; i++) {
			L[i]=1e9, R[i]=-1e9;
			ll s=0;
			for(int j=i-1; j>=0; j--) {
				s+=A[j+1];
				if((s&m)==s) {
					L[i]=min(L[i], L[j]+1);
					R[i]=max(R[i], R[j]+1);
				}
			}
		}
		if(!(S<=R[N] && L[N]<=E)) m^=1LL<<k;
	}
	cout<<m<<'\n';
}

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