oj.uz

Submission #1030454

# Submission time Handle Problem Language Result Execution time Memory
1030454 2024-07-22T05:23:49 Z KienTran Secret (JOI14_secret) C++14
0 / 100
 303 ms 4432 KB 
#include <bits/stdc++.h>
#include "secret.h"

using namespace std;

const int O = 2e3 + 5;
//const int N = (1 << 20) + 5;
const int mod = 1e9 + 7; //998244353;
const int inf = 1e18;
int pr[] = {167772161, 469762049, 754974721, 1045430273, 1051721729, 1053818881};
const double eps = 1e-10;

int a[O], mask[O], f[21][O];

void DnC(int l, int r, int level){
    if (level > 8 || l > r) return;
    int mid = (l + r) / 2;

    DnC(l, mid, level + 1);
    DnC(mid + 1, r, level + 1);

    f[level][mid] = a[mid];
    for (int i = mid - 1; i >= l; ++ i) f[level][i] = Secret(f[level][i + 1], a[i]);

    f[level][mid + 1] = a[mid + 1];
    for (int i = mid + 2; i <= r; ++ i) f[level][i] = Secret(f[level][i - 1], a[i]);

    for (int i = mid + 1; i <= r; ++ i) mask[i] |= (1 << level);

}

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

int Query(int L, int R){
    if (L == R) return a[L];
    int x, cur = mask[L] ^ mask[R];
    for (int i = 0; i < 10; ++ i){
        if (cur >> i & 1){
            x = i;
            break;
        }
    }
    return Secret(f[x][L], f[x][R]);
}

/*main(){
    ios_base::sync_with_stdio(false); cin.tie(0); cout.tie(0);

}*/
/**
**/

Compilation message

secret.cpp:9:17: warning: overflow in conversion from 'double' to 'int' changes value from '1.0e+18' to '2147483647' [-Woverflow]
    9 | const int inf = 1e18;
      |                 ^~~~
secret.cpp: In function 'int Query(int, int)':
secret.cpp:46:18: warning: 'x' may be used uninitialized in this function [-Wmaybe-uninitialized]
   46 |     return Secret(f[x][L], f[x][R]);
      |            ~~~~~~^~~~~~~~~~~~~~~~~~

Subtask #1
0.0 / 100.0

# Verdict Execution time Memory Grader output
1 Incorrect 77 ms 2388 KB Wrong Answer [1]
2 Incorrect 78 ms 2548 KB Wrong Answer [1]
3 Incorrect 82 ms 2384 KB Wrong Answer [1]
4 Incorrect 294 ms 4276 KB Wrong Answer [1]
5 Incorrect 300 ms 4432 KB Wrong Answer [1]
6 Incorrect 293 ms 4292 KB Wrong Answer [1]
7 Incorrect 302 ms 4432 KB Wrong Answer [1]
8 Incorrect 303 ms 4292 KB Wrong Answer [1]
9 Incorrect 302 ms 4432 KB Wrong Answer [1]
10 Incorrect 284 ms 4432 KB Wrong Answer [1]