제출 #527588

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
527588		SlavicG	Bali Sculptures (APIO15_sculpture)	C++17	71 / 100	1085 ms	16160 KiB

sculpture

#include "bits/stdc++.h"
using namespace std;
 
#define ll long long
 
#define       forn(i,n)              for(int i=0;i<n;i++)
#define          all(v)              v.begin(), v.end()
#define         rall(v)              v.rbegin(),v.rend()
 
#define            pb                push_back
#define          sz(a)               (int)a.size()

const int N = 2005;
ll p[N];
ll sum(int l, int r) {
    return p[r] - (l ? p[l - 1] : 0);
}

//dp[index][OR][number of subarrays] = 1 if possible to obtain such partition

int dp[N][N];
ll excluded;

bool check(ll k, int n, vector<ll>& a, int A, int B) {
    for(int i = 0;i < N; ++i) for(int j = 0;j < N; ++j) dp[i][j] = 0;
    dp[0][0] = 1;
    for(int i = 1; i <= n; ++i) {
        for(int j = 0;j < i; ++j) {
            ll s = sum(j, i - 1);
            if((s & excluded) || (s & (1LL << k))) continue;
            for(int x = 0;x < n; ++x) {
                dp[i][x + 1] |= dp[j][x];
            }
        }
    }
    for(int j = A; j <= B; ++j) {
        if(dp[n][j]) return true;
    }
    return false;
}

void solve() { 
    ll n, A, B;
    cin >> n >> A >> B;
    vector<ll> a(n);
    for(int i = 0;i < n; ++i) {
        cin >> a[i];
        p[i] = (i ? p[i - 1] : 0) + a[i];
    }

    ll ans = 0;
    for(ll pw = 62; pw >= 0; --pw) {
        if(check(pw, n, a, A, B)) {
            excluded += (1LL << pw);
        } else {
            ans += (1LL << pw);
        }
    }
    cout << ans << "\n";
} 
 
int32_t main() {
    ios_base::sync_with_stdio(0);cin.tie(0);cout.tie(0);
    int t = 1;
    //cin >> t;
    while(t--) {
        solve();
    }
}

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