#include "brperm.h"
#include<bits/stdc++.h>
using namespace std;
#define rep(a, b) for(int a = 0; a < (b); ++a)
#define st first
#define nd second
#define pb push_back
#define all(a) a.begin(), a.end()
const int LIM=5e5+7;
int n;
char T[LIM];
void init(int x, const char s[]) {
n=x;
rep(i, n) T[i]=s[i];
}
int odw(int x, int k) {
int ans=0;
rep(i, k) {
if(x&(1<<i)) ans+=1<<(k-i-1);
}
return ans;
}
int querry(int i, int k) {
rep(j, 1<<k) {
if(T[i+j]!=T[i+odw(j, k)]) return 0;
}
return 1;
}
Compilation message
/usr/bin/ld: /tmp/ccvcbwcR.o: in function `main':
grader.cpp:(.text.startup+0x89): undefined reference to `query(int, int)'
collect2: error: ld returned 1 exit status
