#include<bits/stdc++.h>
#include "secret.h"
#define pll pair<ll, ll>
#define fi first
#define se second
#define pb push_back
#define task "hopscotch"
#define pii pair<ll, pll>
using namespace std;
using ll = long long;
const int N = 1e3+55;
const ll mod = 998244353;
const ll base = 350;
const ll cs = 331;
ll m, n, t, k, P[N][12], ans, tong, b[N];
void build(int id, int l, int r)
{
if(l == r)
{
return;
}
ll mid = (l + r) / 2;
P[mid][id] = b[id];
for(int i = mid-1; i >= l; i --)P[i][id] = Secret(a[i], P[i+1][id]);
for(int i = mid+1; i <= r; i ++)P[i][id] = Secret(a[i], P[i-1][id]);
build(id+1, l, mid-1);
build(id+1, mid+1, r);
}
int get(int id, int l, int r, int u, int v)
{
ll mid = (l + r) / 2;
if(l == r)return -1;
if(u <= mid && mid <= v)return id;
if(mid < u)return get(id+1, l, mid-1, u, v);
else return get(id+1, mid+1, r, u, v);
}
void Init(int n, int a[])
{
for(int i = 0; i < n; i ++)b[i] = a[i];
build(0, 0, n-1);
}
int Query(int l, int r)
{
int id = get(0, 0, n-1, l, r);
if(id == -1)return b[l];
return Secret(P[l][id], P[r][id]);
}
Compilation message
secret.cpp: In function 'void build(int, int, int)':
secret.cpp:24:55: error: 'a' was not declared in this scope
24 | for(int i = mid-1; i >= l; i --)P[i][id] = Secret(a[i], P[i+1][id]);
| ^
secret.cpp:25:55: error: 'a' was not declared in this scope
25 | for(int i = mid+1; i <= r; i ++)P[i][id] = Secret(a[i], P[i-1][id]);
| ^
