#include<bits/stdc++.h>
#include <icc.h>
using namespace std;
#define N 100010
#define ll long long
#define ii pair<int,int>
#define fs first
#define sc second
#define pb push_back
#define iii pair<int,ii>
#define int ll
void run()
{
//freopen("A.inp","r",stdin);
// freopen("A.out","w",stdout);
ios::sync_with_stdio(0);
cin.tie(NULL);
cout.tie(NULL);
/// return 0;
}
Compilation message
/usr/bin/ld: /tmp/cczuYrpA.o: in function `main':
grader.cpp:(.text.startup+0x17): undefined reference to `run'
collect2: error: ld returned 1 exit status
