Submission #1318018

#	Time	Username	Problem	Language	Result	Execution time	Memory
1318018		24ta_tdanh	Secret (JOI14_secret)	C++20	Compilation error	0 ms	0 KiB

secret

#include <bits/stdc++.h>
#include "secret.h"
#define endl '\n'
#define fi first
#define se second
#define eb emplace_back
#define pb push_back
#define ce cout << endl
#define ALL(A) A.begin(), A.end()
#define FOR(i, l, r) for (int i = l; i <= r; i++)
#define FOR2(i, l, r) for (int i = l; i >= r; i--)
using namespace std;
using ll = long long;
using pll = pair<ll, ll>;
using pii = pair<int, int>;
using str = string;
using ull = unsigned long long;
using ld = long double; 
const int INF = 1e9;
const int N = 1000;
const int LOGN = ceil(log2(N));
const int heavy = 500;
const int MOD = 1e9 + 7;
int dx[] = {0, 1, 0, -1}; // east, south, west, north
int dy[] = {1, 0, -1, 0};
// T_Danh - Tri An High School
int X[MAXN];
int dat[LOGN][MAXN];
int mask[MAXN];

void divi(int l, int r, int lev) {
    if (l == r) return;
    
    int m = (l + r) >> 1;
    
    dat[lev][m] = X[m];
    FOR2(i,m - 1 , l) {
        dat[lev][i] = Secret(X[i], dat[lev][i + 1]); 
    }
    
    dat[lev][m + 1] = X[m + 1];
    FOR(i,m + 2 , r) {
        dat[lev][i] = Secret(dat[lev][i - 1], X[i]);
    }
    
    FOR(i,m + 1 , r) mask[i] ^= (1 << lev);
    
    divi(l, m, lev + 1);
    divi(m + 1, r, lev + 1);
}

void Init(int N, int A[]) {
    FOR(i,0,N -1) X[i] = A[i];
    divi(0, N - 1, 0);
}

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

// int main() {
//     ios::sync_with_stdio(0);
//     cin.tie(0); cout.tie(0);

//     int t = 1;
//     while (t--) solve();
//     return 0;
// }

Compilation message (stderr)

secret.cpp:27:7: error: 'MAXN' was not declared in this scope
   27 | int X[MAXN];
      |       ^~~~
secret.cpp:28:15: error: 'MAXN' was not declared in this scope
   28 | int dat[LOGN][MAXN];
      |               ^~~~
secret.cpp:29:10: error: 'MAXN' was not declared in this scope
   29 | int mask[MAXN];
      |          ^~~~
secret.cpp: In function 'void divi(int, int, int)':
secret.cpp:36:5: error: 'dat' was not declared in this scope
   36 |     dat[lev][m] = X[m];
      |     ^~~
secret.cpp:36:19: error: 'X' was not declared in this scope
   36 |     dat[lev][m] = X[m];
      |                   ^
secret.cpp:46:22: error: 'mask' was not declared in this scope; did you mean 'std::filesystem::perms::mask'?
   46 |     FOR(i,m + 1 , r) mask[i] ^= (1 << lev);
      |                      ^~~~
      |                      std::filesystem::perms::mask
In file included from /usr/include/c++/13/filesystem:48,
                 from /usr/include/x86_64-linux-gnu/c++/13/bits/stdc++.h:200,
                 from secret.cpp:1:
/usr/include/c++/13/bits/fs_fwd.h:158:7: note: 'std::filesystem::perms::mask' declared here
  158 |       mask              = 07777,
      |       ^~~~
secret.cpp: In function 'void Init(int, int*)':
secret.cpp:53:19: error: 'X' was not declared in this scope
   53 |     FOR(i,0,N -1) X[i] = A[i];
      |                   ^
secret.cpp: In function 'int Query(int, int)':
secret.cpp:58:24: error: 'X' was not declared in this scope
   58 |     if (L == R) return X[L];
      |                        ^
secret.cpp:59:29: error: 'mask' was not declared in this scope; did you mean 'std::filesystem::perms::mask'?
   59 |     int lev = __builtin_ctz(mask[L] ^ mask[R]);
      |                             ^~~~
      |                             std::filesystem::perms::mask
/usr/include/c++/13/bits/fs_fwd.h:158:7: note: 'std::filesystem::perms::mask' declared here
  158 |       mask              = 07777,
      |       ^~~~
secret.cpp:60:19: error: 'dat' was not declared in this scope
   60 |     return Secret(dat[lev][L], dat[lev][R]);
      |                   ^~~