oj.uz

Submission #988091

# Submission time Handle Problem Language Result Execution time Memory
988091 2024-05-24T04:39:00 Z icyalmond Secret (JOI14_secret) C++17
0 / 100
 380 ms 12444 KB 
#include "secret.h"
#include <bits/stdc++.h>

long long pref[1005][15], suf[1005][15], a[1005], mask[1005];

void build(int l, int r, int h)
{
    int m = l + 1 >> 1;
    suf[m][h] = a[m];
    for (int i = m - 1; i >= l; i--) suf[i][h] = Secret(suf[i + 1][h], a[i]);
    pref[m + 1][h] = a[m + 1];
    for (int i = m + 2; i <= r; i++) pref[i][h] = Secret(pref[i - 1][h], a[i]);
    for (int i = m + 1; i <= r; i++) mask[i] |= 1 << h;
    if (l != m) build(l, m, h + 1);
    if (m + 1 != r) build(m + 1, r, h + 1);
}

void Init(int N, int A[])
{
    for (int i = 1; i <= N; i++)
    {
        a[i] = A[i - 1];
        mask[i] = 0;
    }
    build(1, N, 0);
}

int Query(int L, int R)
{
    if (L == R) return(a[L + 1]);
    else
    {
        int h = __builtin_ctz(mask[L + 1] ^ mask[R + 1]);
        return(Secret(suf[L + 1][h], pref[R + 1][h]));
    }
}

//coded by icyalmond

Compilation message

secret.cpp: In function 'void build(int, int, int)':
secret.cpp:8:15: warning: suggest parentheses around '+' inside '>>' [-Wparentheses]
    8 |     int m = l + 1 >> 1;
      |             ~~^~~

Subtask #1
0.0 / 100.0

# Verdict Execution time Memory Grader output
1 Runtime error 106 ms 9048 KB Execution killed with signal 11
2 Runtime error 108 ms 8888 KB Execution killed with signal 11
3 Runtime error 107 ms 8872 KB Execution killed with signal 11
4 Runtime error 374 ms 12204 KB Execution killed with signal 11
5 Runtime error 380 ms 12316 KB Execution killed with signal 11
6 Runtime error 375 ms 12368 KB Execution killed with signal 11
7 Runtime error 376 ms 12204 KB Execution killed with signal 11
8 Runtime error 376 ms 12204 KB Execution killed with signal 11
9 Runtime error 380 ms 12444 KB Execution killed with signal 11
10 Runtime error 377 ms 12204 KB Execution killed with signal 11