oj.uz

Submission #780729

# Submission time Handle Problem Language Result Execution time Memory
780729 2023-07-12T12:15:22 Z borisAngelov Secret (JOI14_secret) C++17
0 / 100
 393 ms 4372 KB 
#include "secret.h"
#include <bits/stdc++.h>

using namespace std;

const int maxn = 1024;
const int max_log = 15;

int n;
int a[maxn];

int precompute[maxn][max_log];

void divide(int depth, int l, int r)
{
    if (l == r)
    {
        precompute[l][depth] = a[l];
        return;
    }

    int mid = (l + r) / 2;

    precompute[mid][depth] = a[mid];

    for (int i = mid - 1; i >= l; --i)
    {
        precompute[i][depth] = Secret(precompute[i + 1][depth], a[i]);
    }

    precompute[mid + 1][depth] = a[mid + 1];

    for (int i = mid + 2; i <= r; ++i)
    {
        precompute[i][depth] = Secret(precompute[i - 1][depth], a[i]);
    }

    divide(depth + 1, l, mid);
    divide(depth + 1, mid + 1, r);
}

void Init(int N, int Arr[])
{
    n = N;

    for (int i = 0; i < n; ++i)
    {
        a[i] = Arr[i];
    }

    divide(0, 0, n - 1);
}

int recurse(int depth, int l, int r, int ql, int qr)
{
    //cout << l << ' ' << r << ' ' << ql << ' ' << qr << endl;
    if (l == r)
    {
        return precompute[l][depth];
    }

    int mid = (l + r) / 2;

    if (qr <= mid)
    {
        return recurse(depth + 1, l, mid, ql, qr);
    }

    if (ql >= mid + 1)
    {
        return recurse(depth + 1, mid + 1, r, ql, qr);
    }

    //cout << "here for " << l << " and " << r << endl;

    return Secret(precompute[l][depth], precompute[r][depth]);
}

int Query(int L, int R)
{
    int l = L;
    int r = R;

    //cout << "-------------------------" << endl;

    return recurse(0, 0, n - 1, l, r);
}

Subtask #1
0.0 / 100.0

# Verdict Execution time Memory Grader output
1 Incorrect 102 ms 2340 KB Wrong Answer: Query(222, 254) - expected : 34031541, actual : 54673711.
2 Incorrect 101 ms 2384 KB Wrong Answer: Query(60, 375) - expected : 669221184, actual : 496578817.
3 Incorrect 111 ms 2300 KB Wrong Answer: Query(211, 401) - expected : 674373968, actual : 20078928.
4 Incorrect 378 ms 4224 KB Wrong Answer: Query(90, 497) - expected : 397934825, actual : 316342811.
5 Incorrect 393 ms 4336 KB Wrong Answer: Query(587, 915) - expected : 752404486, actual : 627707150.
6 Incorrect 380 ms 4296 KB Wrong Answer: Query(738, 741) - expected : 983692994, actual : 456183880.
7 Incorrect 378 ms 4280 KB Wrong Answer: Query(84, 976) - expected : 742463504, actual : 673350762.
8 Incorrect 379 ms 4340 KB Wrong Answer: Query(58, 987) - expected : 20022464, actual : 280414344.
9 Incorrect 379 ms 4236 KB Wrong Answer: Query(33, 967) - expected : 676869696, actual : 962084259.
10 Incorrect 379 ms 4372 KB Wrong Answer: Query(116, 961) - expected : 68487362, actual : 878715528.