#include "secret.h"
#include <bits/stdc++.h>
using namespace std;
#define int long long
const int MAX_N = 1000;
int ans[MAX_N][MAX_N];
int N;
void PreCompute(int left, int right) {
int mid = (left + right) >> 1;
if(right - left >= 2)
return;
for(int i = mid - 2; i >= left; i--) {
ans[i][mid - 1] = Secret(ans[i + 1][mid - 1], ans[i][i]);
}
for(int i = mid + 1; i <= right; i++) {
ans[mid][i] = Secret(ans[mid][i - 1], ans[i][i]);
}
PreCompute(left, mid - 1);
PreCompute(mid + 1, right);
}
void Init(int n, int A[]) {
N = n;
for(int i = 0; i < N; i++) {
for(int j = i; j < N; j++) {
ans[i][j] = (i == j) ? A[i] : -1;
}
}
PreCompute(0, N - 1);
}
int Compute(int left, int right, int ql, int qr) {
int mid = (left + right) >> 1;
if(ql >= mid) {
return Compute(mid, right, ql, qr);
}
else if(qr < mid) {
return Compute(left, mid, ql, qr);
}
return Secret(ans[ql][mid - 1], ans[mid][qr]);
}
int Query(int L, int R) {
if(L == R)
return ans[L][L];
return Compute(0, N - 1, L, R);
}
Compilation message
/tmp/ccBB4SUJ.o: In function `main':
grader-full.cpp:(.text.startup+0x298): undefined reference to `Init(int, int*)'
grader-full.cpp:(.text.startup+0x2fb): undefined reference to `Query(int, int)'
collect2: error: ld returned 1 exit status
