Submission #972745

#	Time	Username	Problem	Language	Result	Execution time	Memory
972745		Gangsta	Bali Sculptures (APIO15_sculpture)	C++14	50 / 100	91 ms	600 KiB

sculpture

#include "bits/stdc++.h"
#define ll long long int
#define pb push_back
#define pii pair<int,int>
#define ff first
#define ss second
#define sz size()

const int N = 2e5 + 1;

using namespace std;

int a, b, n, arr[N], dp[N];

bool check(ll x){
	for(int i = 1; i <= n; i++) dp[i] = 1e9;
	for(int i = 1; i <= n; i++){
		ll sum = 0;
		for(int j = i; j > 0; j--){
			sum += arr[j];
			if((sum & x) == sum){
				dp[i] = min(dp[i], dp[j-1] + 1);
			}
		}
	}
	return dp[n] <= b;
}

int main(){
    ios::sync_with_stdio(false); cin.tie(nullptr);
    //freopen("input.in", "r", stdin);
    //freopen("output.out", "w", stdout);
    cin >> n >> a >> b;
    for(int i = 1; i <= n; i++){
    	cin >> arr[i];
    }
    ll x = (1LL<<42)-1;
    for(int i = 41; i >= 0; i--){
    	x -= (1LL<<i);
    	if(!check(x)) x += (1LL<<i);
    }
    cout << x << '\n';
}

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