oj.uz

답안 #656628

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
656628 2022-11-08T02:42:03 Z CDuong 비밀 (JOI14_secret) C++17
0 / 100
 512 ms 4424 KB 
/*
#pragma GCC optimize("Ofast")
#pragma GCC target("avx2")
#pragma GCC optimize("unroll-loops")
*/
#include <bits/stdc++.h>
#include "secret.h"
#define taskname "bai3"
#define all(x) x.begin(), x.end()
#define ll long long
#define ld long double
#define pb push_back
#define mp make_pair
#define ff first
#define ss second
#define pii pair<int, int>
using namespace std;
const int mxN = 1e3 + 5;
const int mod = 1e9 + 7;
const ll oo = 1e18;
int n, a[mxN], pref[4 * mxN][mxN];
void build(int l, int r, int idx, int dir) {
    if(l == r) {
        pref[idx][1] = a[l];
        return;
    }
    if(l == r - 1) {
        if(dir) pref[idx][1] = a[l];
        else pref[idx][1] = a[r];
        pref[idx][2] = a[l] + a[r];
        return;
    }
    int mid = (l + r) >> 1;
    build(l, mid, idx * 2, 0);
    build(mid + 1, r, idx * 2, 1);
    if(l == 1 && r == n) return;
    if(dir) {
        pref[idx][1] = a[l];
        for(int i = 2; i <= (r - l + 1); ++i) {
            pref[idx][i] = Secret(pref[idx][i - 1], a[l + i - 1]);
        }
        return;
    }
    pref[idx][1] = a[r];
    for(int i = 2; i <= (r - l + 1); ++i) {
        pref[idx][i] = Secret(pref[idx][i - 1], a[r + 1 - i]);
        //op_num++;
    }
}
void Init(int N, int A[]) {
    n = N;
    for(int i = 1; i <= n; ++i) a[i] = A[i];
    build(1, n, 1, 0);
}

int query(int l, int r, int idx, int u, int v) {
    int mid = (l + r) >> 1;
    if(u <= mid && mid <= v) {
        if(u == mid) return pref[idx * 2 + 1][v - u + 1];
        if(v == mid) return pref[idx * 2][v - u + 1];
        int tmp1 = pref[idx * 2][mid - u + 1];
        int tmp2 = pref[idx * 2 + 1][v - mid + 1];
        return Secret(tmp1, tmp2);
    }
    if(mid > v) return query(l, mid, idx * 2, u, v);
    return query(mid + 1, r, idx * 2 + 1, u, v);
}

int Query(int L, int R) {
    ++L; ++R;
    if(L == R) {
        return a[L];
    }
    if(L == R - 1) return Secret(a[L], a[R]);
    return query(1, n, 1, L, R);
}

Subtask #1
0.0 / 100.0

# 결과 실행 시간 메모리 Grader output
1 Incorrect 116 ms 2436 KB Wrong Answer: Query(222, 254) - expected : 34031541, actual : 536870912.
2 Incorrect 120 ms 2380 KB Wrong Answer: Query(60, 375) - expected : 669221184, actual : 458367232.
3 Incorrect 113 ms 2508 KB Wrong Answer: Query(211, 401) - expected : 674373968, actual : 487606366.
4 Incorrect 439 ms 4320 KB Wrong Answer: Query(90, 497) - expected : 397934825, actual : 652296328.
5 Incorrect 446 ms 4332 KB Wrong Answer: Query(587, 915) - expected : 752404486, actual : 536870912.
6 Incorrect 458 ms 4372 KB Wrong Answer: Query(915, 915) - expected : 282904741, actual : 206870645.
7 Incorrect 512 ms 4400 KB Wrong Answer: Query(84, 976) - expected : 742463504, actual : 544742408.
8 Incorrect 448 ms 4392 KB Wrong Answer: Query(58, 987) - expected : 20022464, actual : 551989520.
9 Incorrect 436 ms 4424 KB Wrong Answer: Query(33, 967) - expected : 676869696, actual : 679614991.
10 Incorrect 450 ms 4300 KB Wrong Answer: Query(116, 961) - expected : 68487362, actual : 879365507.