Submission #30876

#	Time	Username	Problem	Language	Result	Execution time	Memory
30876		Navick	Bali Sculptures (APIO15_sculpture)	C++14	71 / 100	183 ms	6512 KiB

sculpture

#include <bits/stdc++.h>
#define F first
#define S second
#define pii pair<int, int>
#define pb push_back

using namespace std;

typedef long long ll;
typedef long double ld;

const int N = 2100, LOG = 40, INF = 1e9;

ll ps[N], n, A, B;
bool dp[N][N];
int pd[N];

bool good(ll vl, int k, ll res){
	if(((vl | res) - res) < (1LL << k))return true;
	return false;
}

bool check(int k, ll res){
	dp[0][0] = true;
	for(int i=1; i<=n; i++)
		dp[i][0] = false;

	for(int i=1; i<=n; i++){
		for(int j=1; j<=i; j++){
			dp[i][j] = false;
			for(int t=i-1; t>=0; t--)
				if(good(ps[i] - ps[t], k, res))
					dp[i][j] |= dp[t][j - 1];
		}
	}

	for(int i=A; i<=B; i++)
		if(dp[n][i])return true;
	return false;

}

bool check2(int k, ll res){
	pd[0] = 0;
	for(int i=1; i<=n; i++){
		pd[i] = INF;
		for(int t=i-1; t>=0; t--)
			if(good(ps[i] - ps[t], k, res))
				pd[i] = min(pd[i], pd[t] + 1);
	}
	if(pd[n] <= B)return true;
	return false;
}

int main(){
	ios_base::sync_with_stdio(0); cin.tie(0);
	cin >> n >> A >> B;
	for(int i=0; i<n; i++){
		int x; cin >> x;
		ps[i + 1] = ps[i] + x;
	}

	ll res = 0;
	for(int i=LOG-1; i>=0; i--){
		if(n < 110){
			if(!check(i, res))res += (1LL << i);
		}else{
			if(!check2(i, res))res += (1LL << i);
		}
	}

	cout << res << endl;

}

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