oj.uz

Submission #988097

# Submission time Handle Problem Language Result Execution time Memory
988097 2024-05-24T04:46:23 Z icyalmond Secret (JOI14_secret) C++17
0 / 100
 359 ms 12112 KB 
#include "secret.h"

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

int Query(int L, int R)
{
    if (L == R) return(a[L]);
    else
    {
        int l = 0, r = n - 1, h = 0;
        while (l <= r)
        {
            int m = l + r >> 1;
            if (L <= m && m + 1 <= R) return(Secret(suf[L][h], pref[R][h]));
            else if (R <= m)
            {
                r = m;
                h++;
            }
            else if (m + 1 <= L)
            {
                l = m + 1;
                h++;
            }
        }
    }
}

//coded by icyalmond

Compilation message

secret.cpp: In function 'void build(int, int, int)':
secret.cpp:7:15: warning: suggest parentheses around '+' inside '>>' [-Wparentheses]
    7 |     int m = l + 1 >> 1;
      |             ~~^~~
secret.cpp: In function 'int Query(int, int)':
secret.cpp:36:23: warning: suggest parentheses around '+' inside '>>' [-Wparentheses]
   36 |             int m = l + r >> 1;
      |                     ~~^~~
secret.cpp:50:1: warning: control reaches end of non-void function [-Wreturn-type]
   50 | }
      | ^

Subtask #1
0.0 / 100.0

# Verdict Execution time Memory Grader output
1 Runtime error 100 ms 10692 KB Execution killed with signal 11
2 Runtime error 102 ms 10456 KB Execution killed with signal 11
3 Runtime error 101 ms 10576 KB Execution killed with signal 11
4 Runtime error 353 ms 12088 KB Execution killed with signal 11
5 Runtime error 357 ms 12104 KB Execution killed with signal 11
6 Runtime error 355 ms 12056 KB Execution killed with signal 11
7 Runtime error 352 ms 12072 KB Execution killed with signal 11
8 Runtime error 354 ms 12112 KB Execution killed with signal 11
9 Runtime error 354 ms 12112 KB Execution killed with signal 11
10 Runtime error 359 ms 12052 KB Execution killed with signal 11