제출 #333408

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
333408		rocks03	Bali Sculptures (APIO15_sculpture)	C++14	0 / 100	1 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, ll>, ll> memo;

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

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

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

컴파일 시 표준 에러 (stderr) 메시지

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")
      |

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