Submission #932501

#	Time	Username	Problem	Language	Result	Execution time	Memory
932501		vjudge1	Bali Sculptures (APIO15_sculpture)	C++17	50 / 100	80 ms	500 KiB

sculpture

#include <bits/stdc++.h>
#define ll long long

using namespace std;

const int N = 2e3 + 5;

int n, u, v;
int a[N];
ll pre[N];

bool ck(ll a, ll b, ll c){
    return (a | b) < (b | c);
}

namespace sub1{
    int dp[N];

    void solve(){
        ll ans = 0;
        for (ll i = 45; i >= 0; -- i){
            ll cur = (1ll << i);
            for (int j = 1; j <= n; ++ j){
                dp[j] = n + 1;
                for (int k = j - 1; k >= 0; -- k){
                    if (ck(pre[j] - pre[k], ans, cur)) dp[j] = min(dp[j], dp[k] + 1);
                }
            }
            if (dp[n] > v) ans += cur;
        }
        cout << ans;
    }
}

namespace sub2{
    bool dp[105][105];

    void solve(){
        ll ans = 0;
        for (ll i = 45; i >= 0; -- i){
            ll cur = 1ll << i;
            dp[0][0] = 1;
            for (int j = 1; j <= n; ++ j){
                for (int t = 0; t <= j; ++ t) dp[j][t] = 0;
                for (int k = 0; k < j; ++ k){
                    if (ck(pre[j] - pre[k], ans, cur)){
                        for (int t = 0; t <= k; ++ t) dp[j][t + 1] |= dp[k][j];
                    }
                }
            }
            bool ck = false;
            for (int t = u; t <= v; ++ t) if (dp[n][t]) ck = true;
            if (!ck) ans += cur;
        }
        cout << ans;
    }
}

void solve(){
    cin >> n >> u >> v;
    for (int i = 1; i <= n; ++ i) cin >> a[i], pre[i] = pre[i - 1] + a[i];

    if (u == 1) sub1::solve();
    else sub2::solve();
}

int main(){
    ios_base::sync_with_stdio(0);
    cin.tie(0);
    cout.tie(0);
    solve();
    return 0;
}

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