제출 #1292307

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
1292307		mohyay	비밀 (JOI14_secret)	C++20	0 / 100	20083 ms	8412 KiB

secret

#include <bits/stdc++.h>
using namespace std;
#include <ext/pb_ds/assoc_container.hpp>
#include <ext/pb_ds/tree_policy.hpp>
using namespace __gnu_pbds;
#define ordered_set tree<ll, null_type, less_equal<ll>, rb_tree_tag,tree_order_statistics_node_update>
#define endl '\n'
using ll = long long;
#define pb push_back
#define pF first
#define pS second
#define SP <<' '<<
const ll mod7 = 1e9+7, mod9= 998244353;
const ll MAX_N = 100000;
//mt19937 rng(chrono::steady_clock::now().time_since_epoch().count());
int Secret(int X, int Y);
int n, *a;
struct presuf {
    int s[1123][1123];
    void rec(int l, int r, int f) {
        int sz = r-l+1, firstp = l+(sz+1)/2, secp = l+(sz-1)/2;
        if (sz == 1) {
            s[l][f] = a[l];
            return;
        }

        s[firstp][f] = a[firstp];
        for (int i = firstp+1; i <= r; i++) {
            s[i][f] = Secret(s[i-1][f], s[i][f]);
        }
        s[secp][f] = a[secp];
        for (int i = secp-1; i >= l; i--) {
            s[i][f] = Secret(s[i][f], s[i+1][f]);
        }
        rec(l, secp, f+1);
        rec(firstp, r, f+1);
    }
    void init() {
        rec(0, n-1, 0);
    }
    int query(int f, int l, int r, int ql, int qr) {
        int sz = r-l+1, firstp = l+(sz+1)/2, secp = l+(sz-1)/2;
        if (qr <= secp) return query(f+1, l, secp, ql, qr);
        if (ql >= firstp) return query(f+1, firstp, r, ql, qr);
        return Secret(s[ql][f], s[qr][f]);
    }
};
presuf datas;
void Init(int N, int A[]) {
    n = N; a = A;
    datas.init();
}
int Query(int L, int R) {
    return datas.query(0, 0, n-1, L, R);
}
/**
int main() {
    ios::sync_with_stdio(0); cin.tie(NULL); cout.tie(NULL);

}
*/

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