Submission #774502

#	Time	Username	Problem	Language	Result	Execution time	Memory
774502		OrazB	Bali Sculptures (APIO15_sculpture)	C++17	9 / 100	1082 ms	456 KiB

sculpture

#include <bits/stdc++.h>
#include <ext/pb_ds/assoc_container.hpp>
#include <ext/pb_ds/tree_policy.hpp>
#include <functional>
using namespace __gnu_pbds;
using namespace std;
typedef tree<int, null_type, less<int>, rb_tree_tag,
             tree_order_statistics_node_update>
    ordered_set;
//Dijkstra->set
//set.find_by_order(x) x-position value
//set.order_of_key(x) number of strictly less elements don't need *set.??
#define N 100005
#define wr cout << "Continue debugging\n";
#define all(x) (x).begin(), (x).end()
#define ll long long int
#define pii pair <ll, ll>
#define pb push_back
#define ff first
#define ss second

const ll inf = 1e18;
int n, A, B;
int a[N], c[N];
ll pref[N], ans = inf;

// bool F(ll y, ll x){
// 	return (((x^y)|x) == x);
// }

// void rec(int x, int pos, int cnt){
// 	if (pos == n){
// 		if (cnt <= B){cout << x;exit(0);}
// 		return;
// 	}
// 	for (int i = pos+1; i <= n; i++){
// 		if (F(pref[i]-pref[pos], x)) rec(x, i, cnt+1);
// 	}
// }

void bit(int x){
	if (x == n){
		ll sum = 0, cur = 0;
		int cnt = 1;
		for (int i = 1; i <= n; i++){
			sum += a[i];
			if (c[i]){
				cur |= sum;
				sum = 0;
				cnt++;
			}
		}
		if (cnt < A or cnt > B) return;
		ans = min(ans, cur|sum);
		return;
	}
	for (int i = 0; i < 2; i++){
		c[x] = i;
		bit(x+1);
	}
}

int main ()
{
	ios::sync_with_stdio(false);
	cin.tie(0);
	cin >> n >> A >> B;
	for (int i = 1; i <= n; i++){
		cin >> a[i];
		pref[i] = pref[i-1]+a[i];
	}
 //  	for (int x = 0; x <= 1000; x++){
	// 	rec(x, 0, 0);
	// }
	bit(1);
	cout << ans << '\n';
}	

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