//#include <iostream> //cin, cout
#include "secret.h"
/*
#include <fstream>
std::ifstream cin ("ex.in");
std::ofstream cout ("ex.out");
*/
// includes
#include <cmath>
#include <set>
#include <map>
#include <queue>
#include <string>
#include <vector>
#include <array>
#include <algorithm>
#include <numeric>
#include <iomanip>
#include <unordered_set>
#include <stack>
#include <ext/pb_ds/assoc_container.hpp>
#include <random>
#include <chrono>
//usings
using namespace std;
using namespace __gnu_pbds;
// misc
#define ll long long
#define pb push_back
#define pq priority_queue
#define ub upper_bound
#define lb lower_bound
template<typename T, typename U> bool emin(T &a, const U &b){ return b < a ? a = b, true : false; }
template<typename T, typename U> bool emax(T &a, const U &b){ return b > a ? a = b, true : false; }
typedef uint64_t hash_t;
// vectors
#define vi vector<int>
#define vvi vector<vi>
#define vvvi vector<vvi>
#define vpii vector<pair<int, int>>
#define vvpii vector<vector<pair<int, int>>>
#define vppipi vector<pair<int, pair<int, int>>>
#define vl vector<ll>
#define vvl vector<vl>
#define vvvl vector<vvl>
#define vpll vector<pair<ll, ll>>
#define vb vector<bool>
#define vvb vector<vb>
#define vs vector<string>
#define sz(x) (int)x.size()
#define rz resize
#define all(x) x.begin(), x.end()
// pairs
#define pii pair<int, int>
#define pll pair<ll, ll>
#define mp make_pair
#define f first
#define s second
// sets
#define si set<int>
#define sl set<ll>
#define ss set<string>
#define in insert
template <class T> using iset = tree<T, null_type, less<T>, rb_tree_tag, tree_order_statistics_node_update>;
// maps
#define mii map<int, int>
#define mll map<ll, ll>
// loops
#define FR(x, z, y) for (int x = z; x < y; x++)
#define FRe(x, z, y) FR(x, z, y + 1)
#define F(x, y) FR(x, 0, y)
#define Fe(x, y) F(x, y + 1)
#define A(x, y) for(auto &x : y)
int n;
vvi v; vi g, a;
void go(int l, int r, int x){
if(l == r) return;
int m = (l + r) / 2;
v[x][m] = a[m];
for(int i = m - 1; i >= l; i--) v[x][i] = Secret(v[x][i + 1], a[i]);
v[x][m + 1] = a[m + 1];
for(int i = m + 2; i <= r; i++) v[x][i] = Secret(v[x][i - 1], a[i]);
for(int i = m + 1; i <= r; i++) g[i] ^= 1 << x;
go(l, m, x + 1);
go(m + 1, r, x + 1);
}
void Init(int N, int A[]){
n = N;
v = vvi(10, vi(n));
a = m = vi(n);
F(i, n) a[i] = A[i];
go(0, n - 1, 0);
}
int Query(int L, int R){
if(L == R) return a[L];
int bits = __builtin_ctz(g[L] ^ g[R]);
return Secret(v[bits][L], v[bits][R]);
}
Compilation message
secret.cpp: In function 'void Init(int, int*)':
secret.cpp:109:6: error: 'm' was not declared in this scope
109 | a = m = vi(n);
| ^
