Submission #1124765

#	Time	Username	Problem	Language	Result	Execution time	Memory
1124765		mmdrzada	Bali Sculptures (APIO15_sculpture)	C++17	71 / 100	1095 ms	836 KiB

sculpture

#include <bits/stdc++.h>
 
using namespace std;
#define int long long

typedef vector<int> vi;
typedef vector<char> vc;
typedef pair<int, int> pii;
typedef long long ll;
typedef pair<ll, ll> pll;
typedef vector<ll> vll;

#define sep ' '
#define F first
#define S second
#define fastIO   ios_base::sync_with_stdio(0);cin.tie(0);cout.tie(0);
#define pb push_back
#define kill(x) {cout << x << endl;return;}
#define sz(x) int(x.size())
#define SP(x) setprecision(x) 
#define mod(x) (1ll*x%M+M)%M
#define pq priority_queue
#define mid (l+r)/2
// #define mid2 (l+r+1)/2
#define pll pair<ll, ll>
#define REP(i, k) for (int i = 0 ; i < k ; i ++)
#define MP make_pair
#define us unordered_set

const int INF = 1e9+10;
const int N = 2e3+10;
const int lgn = 63;
ll n, a, b;
ll y[N];

bitset<N> dp[N];

bool f(int x, int ut) {
	REP(i, n+1)
		REP(j, n+1)
			dp[i][j] = false;
	dp[0][0] = true;
	dp[0] <<= 1;
	
	for(int i = 1 ; i <= n ; i ++) {
		ll s = 0;
		for(int k = i ; k >= 1; k --) {
			s += y[k];
			if ((s>>ut) > (x>>ut)) break;
			if (!((0ll | (s>>ut) | (x>>ut)) == (x>>ut))) continue;
			dp[i] |= dp[k-1];
		}
		dp[i] <<= 1;
	}
	
	// for(int i = 1 ; i <= n ; i ++) {
		// ll s = 0;
		// for(int k = i ; k >= 1 ; k --) {
			// s += y[k];
			// if ((s>>ut) > (x>>ut)) break;
			// if (((0ll | (s>>ut) | (x>>ut)) == (x>>ut))) {
				// dp[i] |= dp[k-1];
				// break;
			// }
		// }
		// dp[i] <<= 1;
	// }
	for(int i = a+1 ; i <= b+1 ; i ++) {
		if (dp[n][i]) return true;
	}
	return false;
}

void solve() {
	cin >> n >> a >> b;
	for(int i = 1 ; i <= n ; i ++) cin >> y[i];
	ll fixed = 0;
	for(int i = lgn ; i >= 0 ; i --) {
		if (!f(fixed, i)) fixed += 1ll<<i;
	}
	cout << fixed << endl;
}

// check MAXN
int32_t main() {
	fastIO;
	
	solve();
	
	return 0;
}

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