#include <bits/stdc++.h>
#include "secret.h"
#define STIZE(x) fprintf(stderr, "STIZE%lld\n", x);
#define PRINT(x) fprintf(stderr, "%s = %lld\n", #x, x);
#define NL(x) printf("%c", " \n"[(x)]);
#define lld long long
#define pii pair<int,int>
#define pb push_back
#define fi first
#define se second
#define mid (l+r)/2
#define endl '\n'
#define all(a) begin(a),end(a)
#define sz(a) int((a).size())
#define LINF 1000000000000000LL
#define INF 1000000000
#define EPS 1e-9
using namespace std;
#define MAXN 1000
int n, a[MAXN], d[MAXN][MAXN];
void init(int l, int r) {
if(abs(r-l) <= 1) return;
d[mid][mid] = a[mid];
for(int i = mid+1; i <= r; i++) d[mid][i] = Secret(d[mid][i-1], a[i]);
d[mid-1][mid-1] = a[mid-1];
for(int i = mid-1; i >= l; i--) d[i][mid-1] = Secret(a[i], d[i+1][mid-1]);
init(l, mid-1); init(mid+1, r);
}
void Init(int N, int A[]) {
n = N;
for(int i = 0; i < n; i++) a[i] = A[i];
init(0, N-1);
}
int query(int l, int r, int L, int R) {
if(L <= mid && mid <= R) return Secret(d[L][mid-1],d[mid][R]);
if(mid < L) return query(mid+1, r, L, R);
if(R < mid) return query(l, mid-1, L, R);
}
int Query(int L, int R) {
if(L == R) return a[L];
if(L+1 == R) return Secret(a[L], a[R]);
return query(0, N-1, L, R);
}
Compilation message
secret.cpp: In function 'int Query(int, int)':
secret.cpp:43:18: error: 'N' was not declared in this scope
return query(0, N-1, L, R);
^
secret.cpp: In function 'int query(int, int, int, int)':
secret.cpp:39:1: warning: control reaches end of non-void function [-Wreturn-type]
}
^
