Submission #1190559

#	Time	Username	Problem	Language	Result	Execution time	Memory
1190559		Gray	Bali Sculptures (APIO15_sculpture)	C++20	100 / 100	169 ms	484 KiB

sculpture

#include <bits/stdc++.h>
using namespace std;
#define ll long long
#define ull unsigned long long
#define ld long double
#define ff first
#define ss second
#define ln "\n"
#define mp make_pair
#define pb push_back
#define INF (ll)1e18
ll MOD = (ll)(1e9+7);

ll bforce(ll n, ll l, ll r, vector<ll> &a, vector<ll> &pref){
    ll res=INF;
    for (ll i=0; i<(1<<n); i++){
        if (!(i&(1<<(n-1)))) continue;
        ll cres=0, csum=0;
        for (ll j=0; j<n; j++){
            csum+=a[j+1];
            if (i&(1ll<<j)){
                cres|=csum; csum=0;
            }
        }
        cres|=csum;
        ll cnt=__builtin_popcountll(i);
        if (cnt>=l and cnt<=r) res=min(res, cres);
    }
    return res;
}

void solve(){
    ll n, l, r; cin >> n >> l >> r;
    vector<ll> a(n+1), pref(n+1);
    for (ll i=1; i<=n; i++){
        cin >> a[i]; pref[i]=pref[i-1]+a[i];
    }
    ll res=0;
    for (ll i=60; i>=0; i--){
        if (l==1){
            vector<ll> dp(n+1, INF);
            dp[0]=0;
            for (ll j=1; j<=n; j++){
                for (ll b=0; b<j; b++){
                    if ((((pref[j]-pref[b])|res)>>i)==(res>>i)){
                        dp[j]=min(dp[j], dp[b]+1);
                    }
                }
            }
            bool pos=0;
            if (dp[n]<=r) pos=1;
            if (!pos){
                res+=(1ull<<i);
            }

        }else{
            vector<vector<ll>> dp(n+1, vector<ll>(r+1, 0));
            dp[0][0]=1;
            for (ll j=1; j<=n; j++){
                for (ll k=1; k<=r; k++){
                    for (ll b=0; b<j; b++){
                        if ((((pref[j]-pref[b])|res)>>i)==(res>>i) and dp[b][k-1]){
                            dp[j][k]=1;
                        }
                    }
                }
            }
            bool pos=0;
            for (ll j=l; j<=r; j++){
                if (dp[n][j]){
                    pos=1;
                }
            }
            if (!pos){
                res+=(1ull<<i);
            }
        }
    }

    cout << res << ln;
}

int main(){
    ios_base::sync_with_stdio(false); cin.tie(nullptr);
    #ifdef LOCAL
    auto start = chrono::high_resolution_clock::now();
    #endif
    ll testc=1;
    // cin >> testc;
    for (ll __c=1; __c<=testc; __c++) solve();
    #ifdef LOCAL
    auto duration = chrono::duration_cast<chrono::microseconds>(chrono::high_resolution_clock::now() - start);
    cout << setprecision(0) << fixed << "time: " << (double)duration.count()/1000.0 << " milliseconds" << endl;
    #endif
}

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