oj.uz

Submission #988087

# Submission time Handle Problem Language Result Execution time Memory
988087 2024-05-24T04:29:04 Z icyalmond Secret (JOI14_secret) C++14
0 / 100
 373 ms 12884 KB 
#include "secret.h"

int pref[1005][15], suf[1005][15], mask[1005];

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

void Init(int N, int A[])
{
    build(1, N, 0, A);
}

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

//coded by icyalmond

Compilation message

secret.cpp: In function 'void build(int, int, int, int*)':
secret.cpp:7:15: warning: suggest parentheses around '+' inside '>>' [-Wparentheses]
    7 |     int m = l + 1 >> 1;
      |             ~~^~~

Subtask #1
0.0 / 100.0

# Verdict Execution time Memory Grader output
1 Runtime error 100 ms 11156 KB Execution killed with signal 11
2 Runtime error 103 ms 11060 KB Execution killed with signal 11
3 Runtime error 101 ms 11088 KB Execution killed with signal 11
4 Runtime error 369 ms 12756 KB Execution killed with signal 11
5 Runtime error 352 ms 12728 KB Execution killed with signal 11
6 Runtime error 373 ms 12728 KB Execution killed with signal 11
7 Runtime error 355 ms 12728 KB Execution killed with signal 11
8 Runtime error 360 ms 12884 KB Execution killed with signal 11
9 Runtime error 354 ms 12624 KB Execution killed with signal 11
10 Runtime error 356 ms 12608 KB Execution killed with signal 11