Submission #492585

#	Time	Username	Problem	Language	Result	Execution time	Memory
492585		PoPularPlusPlus	Bali Sculptures (APIO15_sculpture)	C++17	100 / 100	115 ms	452 KiB

sculpture

#include <bits/stdc++.h>
using namespace std;
#define ll long long
#define ull unsigned long long 
#define pb(e) push_back(e)
#define sv(a) sort(a.begin(),a.end())
#define sa(a,n) sort(a,a+n)
#define mp(a,b) make_pair(a,b)
#define vf first
#define vs second
#define ar array
#define all(x) x.begin(),x.end()
const int inf = 0x3f3f3f3f;
const int mod = 1000000007; 
const double PI=3.14159265358979323846264338327950288419716939937510582097494459230;
bool remender(ll a , ll b){return a%b;}

void solve(){
	int n;
	cin >> n;
	int a , b;
	cin >> a >> b;
	ll arr[n + 1];
	for(int i = 1; i <= n; i++)cin >> arr[i];
	if(n <= 100){
		ll dp[n + 1][b + 1];
		ll cur = 0;
		ll ans = 0;
		ll sum;
		for(ll bit = 39; bit >= 0; bit--){
			memset(dp,-1,sizeof dp);
			dp[0][0] = 1;
			cur += 1LL << bit;
			for(int i = 1; i <= n; i++){
				sum = 0;
				for(int j = 1; j <= min(i , b); j++){
					sum = 0;
					for(int k = i; k > 0; k--){
						sum += arr[k];
						if((sum & cur) == 0)dp[i][j] = max(dp[i][j] , dp[k-1][j-1]);
					}
				}
			}
			int possible = 0;
			for(int j = a; j <= b; j++){
				if(dp[n][j] != -1){
					possible = 1;
				}
			}
			if(possible == 0){
				cur -= 1LL << bit;
				ans += 1LL << bit;
			}
		}
		cout << ans << '\n';
	}
	else {
		ll ans = 0;
		ll cur = 0;
		ll sum;
		int dp[n + 1];
		memset(dp,-1,sizeof dp);
		for(ll bit = 45; bit >= 0; bit--){
			cur += 1LL << bit;
			memset(dp,-1,sizeof dp);
			dp[0] = 0;
			for(int i = 1; i <= n; i++){
				sum = 0;
				for(int j = i; j > 0; j--){
					sum += arr[j];
					if((sum & cur) == 0 && dp[j-1] != -1){
						if(dp[i]!=-1)dp[i] = min(dp[i] , dp[j-1] + 1);
						else dp[i] = dp[j-1] + 1;
					}
				}
			}
			if(dp[n] > b || dp[n] == -1){
				cur -= 1LL << bit;
				ans += 1LL << bit;
			}
		}
		cout << ans << '\n';
	}
}

int main(){
ios_base::sync_with_stdio(false);
cin.tie(NULL);
	//int t;cin >> t;while(t--)
	solve();
	return 0;
}

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