#include <bits/stdc++.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 MAXN = 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}; int n , q , cnt = 0; int X[MAXN + 1]; int dat[LOGN][MAXN + 1]; 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] = query(dat[lev][i + 1] , X[i]); } dat[lev][m + 1] = X[m + 1]; FOR(i, m + 2 ,r) { dat[lev][i] = query(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; // }

secret.cpp:20:28: error: 'N' was not declared in this scope
   20 | const int LOGN = ceil(log2(N));
      |                            ^
secret.cpp:29:9: error: size of array 'dat' is not an integral constant-expression
   29 | int dat[LOGN][MAXN + 1];
      |         ^~~~
secret.cpp: In function 'void divi(int, int, int)':
secret.cpp:37:23: error: 'query' was not declared in this scope
   37 |         dat[lev][i] = query(dat[lev][i + 1] , X[i]);
      |                       ^~~~~
secret.cpp:41:23: error: 'query' was not declared in this scope
   41 |         dat[lev][i] = query(dat[lev][i - 1] , X[i]);
      |                       ^~~~~
secret.cpp: In function 'int Query(int, int)':
secret.cpp:53:8: error: 'l' was not declared in this scope
   53 |     if(l == r) return X[l];
      |        ^
secret.cpp:53:13: error: 'r' was not declared in this scope
   53 |     if(l == r) return X[l];
      |             ^
secret.cpp:55:12: error: 'Secret' was not declared in this scope
   55 |     return Secret(dat[lev][L] , dat[lev][R]);
      |            ^~~~~~