Submission #1136111

#	Time	Username	Problem	Language	Result	Execution time	Memory
1136111		lopkus	Bali Sculptures (APIO15_sculpture)	C++20	100 / 100	988 ms	472 KiB

sculpture

#include <bits/stdc++.h>
using namespace std;
using ll = long long;
using pii = pair<int, int>;
#define pb push_back
#define ff first
#define ss second
const int inf = 1e9;
const int lg = 41;

int main(){
    ios_base::sync_with_stdio(0);
    cin.tie(0);
    cout.tie(0);
    
    int n, l, r; cin>>n>>l>>r;
    vector<int> a(n + 1);
    vector<ll> p(n + 1);
    for (int i = 1; i <= n; i++){
        cin>>a[i];
        p[i] = p[i - 1] + a[i];
    }
    
    if (l != 1){
        ll out = (1LL << (lg + 1)) - 1;
        for (int b = lg; b >= 0; b--){
            out -= (1LL << b);
            vector<vector<bool>> dp(n + 1, vector<bool>(r + 1)); dp[0][0] = 1;
            for (int i = 1; i <= n; i++){
                for (int j = 1; j <= i; j++){
                    ll s = p[i] - p[j - 1];
                    bool ind = 1;
                    for (int bb = b; bb <= lg; bb++){
                        if (((s >> bb) & 1) > ((out >> bb) & 1)){
                            ind = 0;
                            break;
                        }
                    }
                    if (ind){
                        for (int x = 1; x <= r; x++){
                            dp[i][x] = max(dp[i][x], dp[j - 1][x - 1]);
                        }
                    }
                }
            }
            bool ind = 0;
            for (int i = l; i <= r; i++){
                if (dp[n][i]){
                    ind = 1;
                    break;
                }
            }
            if (!ind){
                out += (1LL << b);
            }
        }
        cout<<out<<"\n";
        return 0;
    }
  
    ll out = (1LL << (lg + 1)) - 1;
    for (int b = lg; b >= 0; b--){
        out -= (1LL << b);
        vector<int> dp(n + 1, inf); dp[0] = 0;
        for (int i = 1; i <= n; i++){
            for (int j = 1; j <= i; j++){
                ll s = p[i] - p[j - 1];
                bool ind = 1;
                for (int bb = b; bb <= lg; bb++){
                    if (((s >> bb) & 1) > ((out >> bb) & 1)){
                        ind = 0;
                        break;
                    }
                }
                if (ind){
                    dp[i] = min(dp[i], dp[j - 1] + 1);
                }
            }
        }
        if (dp[n] > r){
            out += (1LL << b);
        }
    }
    cout<<out<<"\n";
}

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