Submission #674600

#	Time	Username	Problem	Language	Result	Execution time	Memory
674600		parsadox2	Bali Sculptures (APIO15_sculpture)	C++14	50 / 100	141 ms	480 KiB

sculpture

#include <bits/stdc++.h>
#define pb 		push_back
#define F		first
#define S 		second
#define debug(x)    cout << #x << "= " << x << ", "
#define ll 		long long
#define fast 		ios::sync_with_stdio(false), cin.tie(0),  cout.tie(0)
#define Sz(x)         (int) x.size()
#define int long long
using namespace std;
mt19937 rng(chrono::steady_clock::now().time_since_epoch().count());

const int maxn = 2e3 + 10 , maxl = 50;
int n , ar[maxn] , a , b , res , ps[maxn];
int dp[maxn];

bool find_ans(int mask)
{
	for(int i = 1 ; i <= n ; i++)
		dp[i] = n + 1;
	dp[0] = 0;
	for(int i = 1 ; i <= n ; i++)
	{
		for(int k = 0 ; k < i ; k++)
		{
			int tmp = ps[i] - ps[k];
			if((tmp & mask) == tmp)
				dp[i] = min(dp[i] , dp[k] + 1);
		}
	}
	bool flg = false;
	if(dp[n] <= b)
		flg = true;
	return flg;
}

void solve()
{
	for(int bit = maxl ; bit > -1 ; bit--)
	{
		int tmp = res;
		tmp |= ((1LL << (bit)) - 1);
		if(!find_ans(tmp))
			res |= (1LL << bit);
	}
}

int32_t main()
{
	fast;
	cin >> n >> a >> b;
	for(int i = 1 ; i <= n ; i++)
	{
		cin >> ar[i];
		ps[i] = ps[i - 1] + ar[i];
	}
	solve();
	cout << res << endl;
	return 0;
}

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