Submission #732812

#	Time	Username	Problem	Language	Result	Execution time	Memory
732812		penguin133	Bali Sculptures (APIO15_sculpture)	C++17	100 / 100	114 ms	352 KiB

sculpture

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

#define int long long
#define pi pair<int, int>
#define pii pair<int, pi>
#define fi first
#define se second
#ifdef _WIN32
#define getchar_unlocked _getchar_nolock
#endif
mt19937_64 rng(chrono::steady_clock::now().time_since_epoch().count());

int n, a, b, A[2005], dp[2005];
bool dp2[105][105];
void solve(){
	cin >> n >> a >> b;
	for(int i=1;i<=n;i++)cin >> A[i];
	if(a > 1){
		int ans = 0, bt = 45, tmp = 0;
		while(bt >= 0){
			tmp += (1ll << bt);
			dp2[0][0] = 1;
			for(int i=1;i<=n;i++){
				for(int j=1;j<=n;j++){
					dp2[i][j] = 0;
					int sm = 0;
					for(int k=i;k>=1;k--){
						sm += A[k];
						if((sm & tmp) == 0)dp2[i][j] |= dp2[k-1][j-1];
					}
				}
			}
			bool f = 0;
			for(int i=a;i<=b;i++)if(dp2[n][i])f = 1;
			if(!f)ans += (1ll << bt), tmp -= (1ll << bt);
			bt--;
		}
		cout << ans;
		return;
	}
	int ans = 0, bt = 45, tmp = 0;
	while(bt >= 0){
		tmp += (1ll << bt);
		for(int i=1;i<=n;i++){
			int sm = 0;
			dp[i] = 1e18;
			for(int j=i;j>=1;j--){
				sm += A[j];
				if((sm&tmp) == 0)dp[i] = min(dp[i], dp[j-1] + 1);
			}
		}
		if(dp[n] > b)ans += (1ll << bt), tmp -= (1ll << bt);
		bt--;
	}
	cout << ans;
}

main(){
	ios::sync_with_stdio(0);cin.tie(0);
	int tc = 1;
	//cin >> tc;
	for(int tc1=1;tc1<=tc;tc1++){
		// cout << "Case #" << tc1 << ": ";
		solve();
	}
}

Compilation message (stderr)

sculpture.cpp:59:1: warning: ISO C++ forbids declaration of 'main' with no type [-Wreturn-type]
   59 | main(){
      | ^~~~

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