Submission #602687

#	Time	Username	Problem	Language	Result	Execution time	Memory
602687		fuad27	Bali Sculptures (APIO15_sculpture)	C++17	50 / 100	215 ms	460 KiB

sculpture

/*
 * Created: 2022-07-23 13:06
*/
#ifndef LOCAL
	#pragma GCC optimize("O3,unroll-loops")
	#pragma GCC target("avx2,bmi,bmi2,lzcnt,popcnt")
#endif

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

using ll = long long;

#define FOR(i,a,b) for(int i=int(a);i<int(b);i++)
#define rep(i,b) FOR(i,0,b)
#define FORN(i,a,b) for(int i=int(b)-1;i>=a;i--)
#define per(i,b) FORN(i,0,b)

#define mkp make_pair
#define pb push_back
#define ep emplace_back
#define ff first
#define ss second
#define bg begin()
#define ed end()
#define sz(x) (int)x.size()
#define all(x) (x).bg,(x).ed
#define FIO ios_base::sync_with_stdio(0);\
	cin.tie(0);

template<class t> using vc=vector<t>;;
template<class t> using vvc=vc<vc<t>>;

using pii=pair<int,int>;
using pll=pair<ll,ll>;
using vi= vc<int>;
using vll= vc<ll>;


#ifdef LOCAL
#include "/home/fuad/cp/dbg.h"
#else
#define dbg(x...)
#endif

mt19937 rng(chrono::steady_clock::now().time_since_epoch().count());
mt19937_64 rngll(chrono::steady_clock::now().time_since_epoch().count());
const long long inf=1e18;
void solve() {
	int n, a, b;
	cin >> n >> a >> b;
	ll y[n];
	long long pref[n+1];
	rep(i,n)cin>>y[i];
	for(int i = 0;i<n;i++) {
		pref[i+1]=pref[i];
		pref[i+1]+=y[i];
	}
	ll res=(1ll<<60)-1;
	for(int B = 59;B>=0;B--) {
		res^=(1ll<<B);
		vc<ll> dp(n+1, inf);
		dp[0]=0;
		for(int i = 1;i<=n;i++) {
			for(int j = 0;j<i;j++) {
				if(((pref[i]-pref[j])|res)==res)dp[i]=min(dp[i], dp[j]+1);
			}
		}
		if(dp[n]>b){
			res^=(1ll<<B);
//			cout << B << ": " << dp[n] << endl;
		}
	}
	cout<<res<<"\n";
}

int main () {
	FIO;
	int t=1;
	// cin >> t;
	while(t--)
		solve();
}

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