Submission #333418

#	Time	Username	Problem	Language	Result	Execution time	Memory
333418		rocks03	Bali Sculptures (APIO15_sculpture)	C++14	0 / 100	1093 ms	384 KiB

sculpture

#pragma GCC target("avx2")
#pragma GCC optimization("O3")
#pragma GCC optimization("unroll-loops")
#include<bits/stdc++.h>
using namespace std;
#define ll long long
#define pii pair<int, int>
#define pll pair<ll, ll>
#define ff first
#define ss second
#define pb push_back
#define SZ(x) ((int)(x).size())
#define all(x) x.begin(), x.end()
mt19937 rng(chrono::steady_clock::now().time_since_epoch().count());

const int MAXN = 2e3+100;
int N, A, B, a[MAXN];
map<pair<int, pair<int, ll>>, ll> memo;

ll f(int gruppo, int i, ll ans){
    if(i == N){
        return ans;
    }
    ll cur_ans = (1ll<<60)-1;
    if(N - i + gruppo < A || gruppo > B){
        return cur_ans;
    }
    pair<int, pair<int, ll>> st = {gruppo, {i, ans}};
    /*
    if(memo.count(p)){
        return memo[p];
    }
    */
    ll s = 0;
    for(int j = i; j < N; j++){
        s += a[j];
        cur_ans = min(cur_ans, f(gruppo+1, j+1, (s|ans)));
    }
    //memo[st] = cur_ans;
    return cur_ans;
}

void solve(){
    cin >> N >> A >> B;
    for(int i = 0; i < N; i++){
        cin >> a[i];
    }
    cout << f(1, 0, 0);
}

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

Compilation message (stderr)

sculpture.cpp:2: warning: ignoring #pragma GCC optimization [-Wunknown-pragmas]
    2 | #pragma GCC optimization("O3")
      | 
sculpture.cpp:3: warning: ignoring #pragma GCC optimization [-Wunknown-pragmas]
    3 | #pragma GCC optimization("unroll-loops")
      | 
sculpture.cpp: In function 'long long int f(int, int, long long int)':
sculpture.cpp:28:30: warning: variable 'st' set but not used [-Wunused-but-set-variable]
   28 |     pair<int, pair<int, ll>> st = {gruppo, {i, ans}};
      |                              ^~

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