oj.uz

Submission #784414

# Submission time Handle Problem Language Result Execution time Memory
784414 2023-07-16T06:05:40 Z chanhchuong123 Secret (JOI14_secret) C++14
0 / 100
 404 ms 8592 KB 
#include "secret.h"
#include <bits/stdc++.h>
using namespace std;

const int MAX = 1024;
int n;
int a[MAX];
int mask[MAX];
int dp[15][MAX];

void divi(int l, int r, int lev) {
    if (l == r) return;
    int mid = l + r >> 1;
    dp[lev][mid] = a[mid]; dp[lev][mid + 1] = a[mid + 1];
    for (int i = mid - 1; i >= l; --i) dp[lev][i] = Secret(dp[lev][i + 1], a[i]);
    for (int i = mid + 2; i <= r; ++i) dp[lev][i] = Secret(dp[lev][i - 1], a[i]);
    for (int i = mid + 1; i <= r; ++i) mask[i] = 1 << lev;
    divi(l, mid, lev + 1); divi(mid + 1, r, lev + 1);
}

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

int Query(int L, int R) {
    if (L == R) return a[L];
    int lev = __builtin_ctz(mask[L] ^ mask[R]);
    return Secret(dp[lev][L], dp[lev][R]);
}

Compilation message

secret.cpp: In function 'void divi(int, int, int)':
secret.cpp:13:17: warning: suggest parentheses around '+' inside '>>' [-Wparentheses]
   13 |     int mid = l + r >> 1;
      |               ~~^~~

Subtask #1
0.0 / 100.0

# Verdict Execution time Memory Grader output
1 Runtime error 105 ms 4684 KB Execution killed with signal 11
2 Incorrect 104 ms 2312 KB Wrong Answer: Query(60, 375) - expected : 669221184, actual : 436403617.
3 Incorrect 102 ms 2416 KB Wrong Answer: Query(211, 401) - expected : 674373968, actual : 497206465.
4 Incorrect 382 ms 4260 KB Wrong Answer: Query(90, 497) - expected : 397934825, actual : 113654935.
5 Runtime error 404 ms 8568 KB Execution killed with signal 11
6 Incorrect 376 ms 4304 KB Wrong Answer: Query(738, 741) - expected : 983692994, actual : 998937626.
7 Runtime error 378 ms 8592 KB Execution killed with signal 11
8 Runtime error 382 ms 8532 KB Execution killed with signal 11
9 Runtime error 381 ms 8548 KB Execution killed with signal 11
10 Incorrect 377 ms 4288 KB Wrong Answer: Query(116, 961) - expected : 68487362, actual : 346751192.