criyle/codenet-compile-errors huggingface dataset:
Language: C++

#include <bits/stdc++.h>
using namespace std;
typedef long long ll;
#define rep(i, n) for(int i = 0; i < (int)(n); i++)
#define all(x) (x).begin(),(x).end()
#define MOD 1000000007
#define INF (1e9)
#define PI (acos(-1))
#define print(x) cout << x << endl
#define yes cout << "Yes" << endl
#define YES cout << "YES" << endl
#define no cout << "No" << endl
#define NO cout << "NO" << endl



int main() {
    int N; cin >> N;
    vector<ll> A(N); rep(i, N) cin >> A[i];

    bool flag = true;
    sort(all(A));
    reverse(all(A));
    rep(i, N) {
        if (A[i] != A[0]) flag = false;
    }
    if (flag) {
        print(A[0]);
        return 0;
    }

    int ans = 0;
    for (int i = 2; i < int(sqrt(1000000))); ++i) {
        int cnt = 0;
        for (int j = 0; j < N; ++j) {
            if (A[j] % i == 0) {
                cnt++;
            }
        }
        if (cnt == N-1) {
            ans = i;
        }
    }

    if (ans == 0) print(1);
    else print(ans);
    return 0;

}

Compiler output:
a.cc: In function 'int main()':
a.cc:33:43: error: expected ';' before ')' token
   33 |     for (int i = 2; i < int(sqrt(1000000))); ++i) {
      |                                           ^
      |                                           ;
a.cc:33:48: error: 'i' was not declared in this scope
   33 |     for (int i = 2; i < int(sqrt(1000000))); ++i) {
      |                                                ^
Language: C++

#include <bits/stdc++.h>

using namespace std;

const int N = 1e5, M = 100; int g, m, n; map<int,int> h; vector<int> s;

int dp[M][N][2];

int max_gcd(int i, int j, int k)
{
  if (dp[k][i][j] != -1)
    	return dp[k][i][j];
  
  if (i == n)
    	return dp[k][i][j] = j? k : INT_MIN;
  
  int l = __gcd(k,s[i++]));
  
  if (j)
    	return max_gcd(i,1,l);
  
  return dp[k][i][j] = max(max_gcd(i,0,l),max_gcd(i,1,l)); 
}
  
int main()
{
    ios_base::sync_with_stdio(false),
    cin.tie(nullptr), cout.tie(nullptr),
  	memset(dp,-1,sizeof dp),
  	cin >> n;
  
  	for (int a, i = 0; i < n; ++i)
      	cin >> a, h[a]++;
  
  	for (auto p: h)
      	if (g == 1)
          	break;
  		else if (p.second > 1)
          	g = __gcd(g,p.first);
  		else 
          	s.push_back(p.first); 
  
  	if (s.empty())
      cout << g, exit(0);
  
 	m = s.size(), cout << max_gcd(0,0,g);
}



Compiler output:
a.cc: In function 'int max_gcd(int, int, int)':
a.cc:17:26: error: expected ',' or ';' before ')' token
   17 |   int l = __gcd(k,s[i++]));
      |                          ^
Language: C++

#include <iostream>
#include <algorithm>
#include <cassert>
#include <vector>
#include <utility>
#include <map>

using namespace std;

map< pair<int, int>, int> memo;

int gcd(int a_, int b_)
{
    int a = a_, b = b_;
    pair<int,int> p = make_pair(a, b);
    if(memo.count(p)!=0) return memo[p];

    int temp;
    while (b != 0)
    {
        temp = a % b;

        a = b;
        b = temp;
    }

    memo[p] = a;
    return a;
}

/*
unsigned int gcd(unsigned int u, unsigned int v)
{
    unsigned int shift = 0;

    /* GCD(0,v) == v; GCD(u,0) == u, GCD(0,0) == 0 */
    if (u == 0) return v;
    if (v == 0) return u;
 
    /* Let shift := lg K, where K is the greatest power of 2
        dividing both u and v. */
    while (((u | v) & 1) == 0) {
        shift++;
        u >>= 1;
        v >>= 1;
    }
 
    while ((u & 1) == 0)
        u >>= 1;
 
    /* From here on, u is always odd. */
    do {
        /* remove all factors of 2 in v -- they are not common */
        /*   note: v is not zero, so while will terminate */
        while ((v & 1) == 0)
            v >>= 1;

        /* Now u and v are both odd. Swap if necessary so u <= v,
            then set v = v - u (which is even). For bignums, the
             swapping is just pointer movement, and the subtraction
              can be done in-place. */
        if (u > v) {
            unsigned int t = v; v = u; u = t; // Swap u and v.
        }
       
        v -= u; // Here v >= u.
    } while (v != 0);

    /* restore common factors of 2 */
    return u << shift;
}
/*

void solve(int n, vector<int>& a){
  int result = 0;
  int ret = -1;

  if(n <= 2){
    result = *max_element(a.begin(), a.end());
  } else {
    for(int i = 0; i< n; i++){
        ret = -1;
        for(int j = 0; j < n; j++){
           if(i == j) continue;
           if(ret == -1){
             ret = a[j];
           } else {
             ret = gcd(ret, a[j]);
           }
           if( ret <= result ) break;
        }
        result = max(result, ret);
    }
  }

  cout << result;
}

int main(int argc, char const* argv[])
{
  int n, t;
  vector<int> a;

  cin >> n;


  for(int i = 0; i < n; i++){
     cin >> t;
     a.push_back(t);
  }

  solve(n, a);

  return 0;
}


Compiler output:
a.cc:72:1: error: unterminated comment
   72 | /*
      | ^
a.cc:37:5: error: expected unqualified-id before 'if'
   37 |     if (u == 0) return v;
      |     ^~
a.cc:38:5: error: expected unqualified-id before 'if'
   38 |     if (v == 0) return u;
      |     ^~
a.cc:42:5: error: expected unqualified-id before 'while'
   42 |     while (((u | v) & 1) == 0) {
      |     ^~~~~
a.cc:48:5: error: expected unqualified-id before 'while'
   48 |     while ((u & 1) == 0)
      |     ^~~~~
a.cc:52:5: error: expected unqualified-id before 'do'
   52 |     do {
      |     ^~
a.cc:67:7: error: expected unqualified-id before 'while'
   67 |     } while (v != 0);
      |       ^~~~~
a.cc:70:5: error: expected unqualified-id before 'return'
   70 |     return u << shift;
      |     ^~~~~~
a.cc:71:1: error: expected declaration before '}' token
   71 | }
      | ^
Language: C++

#include<bits/stdc++.h>
using namespace std;
int main(void){
    int n;
    cin>>n;
    long long M;
    M=1;
    long long A[n];
    long long B[n];
    long long C[n];
    for(int i=0;i<n;i++){
        cin>>A[i];
        
    }
    for(int i=1;i<n;i++){
        for(int j=1;j<n;j++){
            B[i]=A[0];
            if(j==i){
                C[j]=A[j-1];
                
            }else{
                C[j]=A[j];
            }
            B[i]=_gcd((int)B[i],(int)C[j]);
        }    
    }
    for(int i=1;i<n;i++){
        
        B[0]=A[1];
        
        B[0]=_gcd((int)B[0],(int)A[i]);
            
    }
    for(int i=0;i<n;i++){
        M=max(M,B[i]);
    }
    cout<<M<<endl;
    return 0;
    
}


Compiler output:
a.cc: In function 'int main()':
a.cc:24:18: error: '_gcd' was not declared in this scope
   24 |             B[i]=_gcd((int)B[i],(int)C[j]);
      |                  ^~~~
a.cc:31:14: error: '_gcd' was not declared in this scope
   31 |         B[0]=_gcd((int)B[0],(int)A[i]);
      |              ^~~~
Language: C++

#include <bits/stdc++.h>
#include <iostream>
using namespace std;
int main() {
	//入力
	int n,gcd,ans;
	ans = 0;
	gcd = 0;
	cin >> n;
	vector<long> A(n);
	for (int i = 0; i < n; i++) cin >> A.at(i);
	//処理
	for (long j = 0; j < pow(10,9); j++) {
		gcd = 0;
		for (int k = 0; k < n; k++) {
			if (A.at(k) % j == 0) gcd++;
		}
		if (gcd >= ans) ans = gcd;
	}
	//出力
	cout << ans+1 << endl;

Compiler output:
a.cc: In function 'int main()':
a.cc:21:31: error: expected '}' at end of input
   21 |         cout << ans+1 << endl;
      |                               ^
a.cc:4:12: note: to match this '{'
    4 | int main() {
      |            ^
Language: C++

#include<iostream>
#include<vector>
#include<algorithm>
using namespace std;

int main(){
  int N;
  vector<int> A;
  cin >> N;
  for(int i=0;i<N;i++){
    int temp;
    cin >>temp;
    A.push_back(temp);
  }
  sort(A.begin(),A.end(),greater<int>());

  vector<int> ans1,ans2,ans3;

  //一番大きいものと一番小さいものの最大公約数を求めてみる。
  //二番目と1番小さい
  // 一番目と二番目
  int r1=A[0]%A[N-1];
  int a=A[0],b=A[N-1];
  while(r1!=0){
    a = b;
    b = r1;
    r1 = a%b;
  }
  r1 = b;

  int r2=A[1]%A[N-2];
  a=A[1],b=A[N-2];

  while(r2!=0){
    a = b;
    b = r2;
    r2 = a%b;
  }
  r2 = b;
 
  int result=0;
  
  bool flag = false;
  while(!flag){
    int change1=0,change2=0;
    for(int i=0;i<N;i++){
      if(A[i]%r1 !=0) change1++;
      if(A[i]%r2 !=0) change2++;
    }
    if(change1<2 && change2<2){
      result = max(r1,r2);
      flag=true;
    }else{
      int res1;
      if(r1>r2) res1=r1%r2;
      else res1 = r2%r1;
      a = max(r1,r2);
      b = min(r1,r2);
      while(res1!=0&&change1>1){
	a = b;
	b = res1;
	res1 = a%b;
      }
      res1 = b;
      if(res1 == 1)
      int res2;
      for(int j=2;j<res1;j++){
	if(res1%j == 0) res2 = res1/j;
      }
      //cout<<"debug"<<res1<<change1<<change2<<endl;
  
      r1 = res1;
      r2 = res2;
      // cout<<r1<<" "<<r2<<endl;
    }
  }//end of while

  cout<<result<<endl;
  return 0;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:68:25: error: 'res2' was not declared in this scope; did you mean 'res1'?
   68 |         if(res1%j == 0) res2 = res1/j;
      |                         ^~~~
      |                         res1
a.cc:73:12: error: 'res2' was not declared in this scope; did you mean 'res1'?
   73 |       r2 = res2;
      |            ^~~~
      |            res1
Language: C++

#include<iostream>
#include<numeric>
#include<vector>
#include<algorithm>
using namespace std;

int main(){
	int N;
	cin>>N;
	vector<int> A(N);
	vector<int> g(N);
	for(int i=0;i<N;i++){
		cin>>A.at(i);
	}

	for(int i=0;i<N;i++){
		for(int j=0;j<N;j++){
			if(j!=i){
				g.at(i)=gcd(g.at(i),N(j));
			}
		}
	}

	cout<<*max_element(g.begin(), g.end())<<endl;

	return 0;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:19:54: error: 'N' cannot be used as a function
   19 |                                 g.at(i)=gcd(g.at(i),N(j));
      |                                                     ~^~~
Language: C++

#include<iostream>
#include<algorithm>

using namespace std;

int main(void) {
  int n;
  cin >> n;
  int a[n];
  for (int i = 0; i < n; i++) {
    cin >> a[i];
  }
  if (n == 2) {
    cout << max(a[0], a[1]) << endl;
    return 0;
  }
  sort(a, a + n);
  if (a[0] == a[n-1]) {
    cout << a[0] << endl;
    return 0;
  }
  if (a[1] == a[n-1]) {
    cout << a[1] << endl;
    return 0;
  }
  if (a[0] == a[n-1]) {
    cout << a[0] << endl;
    return 0;
  }
  int diff_min_3 = 1000000001;
  int diff_min_2 = 1000000001;
  int diff_min = 1000000001;
  for (int i = n - 1; i >= 2; i--) {
    if (a[i] - a[i-2] == 0) {
      continue;
    }
    if (a[i] - a[i-2] < diff_min) {
      diff_min_3 = diff_min_2;
      diff_min_2 = diff_min;
      diff_min = a[i] - a[i-2];
    } else if (a[i] - a[i-2] < diff_min_2) {
      diff_min_3 = diff_min_2;
      diff_min_2 = a[i] - a[i-2];
    } else if (a[i] - a[i-2] < diff_min_3) {
      diff_min_3 = a[i] - a[i-2];
    }
  }
  int i = diff_min_3;
  for (; i >= 1; i--) {
    int mem = -1;
    bool flg = true;
    for (int j = 0; j < n; j++) {
      if (a[j] % i != 0) {
        if (mem != -1) {
          flg = false;
          break;
        }
        else mem = j;
      }
    }
    if (flg) break;
    if (i == diff_min_2) i = diff_min_1;
    if (i == diff_min_3) i = diff_min_2;
  }
  cout << i << endl;

  return 0;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:62:30: error: 'diff_min_1' was not declared in this scope; did you mean 'diff_min_2'?
   62 |     if (i == diff_min_2) i = diff_min_1;
      |                              ^~~~~~~~~~
      |                              diff_min_2
Language: C++

#include <iostream>
#include <algorithm>
using namespace std;

int main(){
	int n;
	cin >> n;
	int a[n],i,j,k,min[2],gcd=1,maxh=0;
	min[0] = 1000000001;
	for(i=0;i<n;i++){
		cin >> a[i];
		if(min[0]>a[i]){
			min[1] = min[0];
			min[0] = a[i];
		}else if(min[1]>a[i]){
			min[1] = a[i];
		}
		if(a[i]<maxh) maxh = a[i];
		
	}
	if(n==2) cout << max(a[0],a[1]) << endl;
	else{
		for(i=2;i<max;i++){
          int cnt = 0;
          for(j=0;j<n;j++){
            if(a[j]%i!=0) cnt++;
        	if(cnt=2) break;
          }
          if(cnt!=2 && gcd < i) gcd = i;
        }
		cout << gcd << endl;
	}
	return 0;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:23:26: error: invalid operands of types 'int' and '<unresolved overloaded function type>' to binary 'operator<'
   23 |                 for(i=2;i<max;i++){
      |                         ~^~~~
Language: C++

#include <bits/stdc++.h>
#include <iostream>
using namespace std;
int main() {
	//入力
	int n,gcd,ans;
	ans = 0;
	gcd = 0;
	cin >> n;
	vetor<long> A(n);
	for (int i = 0; i < n; i++) cin >> A.at(i);
	//処理
	for (long j = 0; j < pow(10,9); j++) {
		gcd = 0;
		for (int k = 0; k < n; k++) {
			if (A.at(k) % j == 0) gcd++;
		}
		if (gcd >= ans) ans = gcd;
	}
	//出力
	cout << ans+1 << endl;

Compiler output:
a.cc: In function 'int main()':
a.cc:10:9: error: 'vetor' was not declared in this scope
   10 |         vetor<long> A(n);
      |         ^~~~~
a.cc:10:15: error: expected primary-expression before 'long'
   10 |         vetor<long> A(n);
      |               ^~~~
a.cc:11:44: error: 'A' was not declared in this scope
   11 |         for (int i = 0; i < n; i++) cin >> A.at(i);
      |                                            ^
a.cc:16:29: error: 'A' was not declared in this scope
   16 |                         if (A.at(k) % j == 0) gcd++;
      |                             ^
a.cc:21:31: error: expected '}' at end of input
   21 |         cout << ans+1 << endl;
      |                               ^
a.cc:4:12: note: to match this '{'
    4 | int main() {
      |            ^
Language: C++

#include <bits/stdc++.h>
using namespace std;
typedef long long ll;
const double EPS = 1e-9;
const int INF = 1e9;
const int MOD = 1e9+7;
const ll LINF = 1e18;
typedef vector<int> vi;
typedef vector<vector<int>> vvi;
typedef pair<int, int> pi;
typedef pair<ll, ll> pll;
typedef map<int, int> mi;
typedef set<int> si;
#define VV(T) vector<vector< T > >
#define dump(x)  cout << #x << " = " << (x) << endl
#define YES(n) cout << ((n) ? "YES" : "NO"  ) << endl
#define Yes(n) cout << ((n) ? "Yes" : "No"  ) << endl
#define POSSIBLE(n) cout << ((n) ? "POSSIBLE" : "IMPOSSIBLE"  ) << endl
#define Possible(n) cout << ((n) ? "Possible" : "Impossible"  ) << endl

#define rep(i, n) REP(i, 0, n)                              // 0, 1, ..., n-1
#define REP(i, x, n) for(int i = x; i < n; i++)             // x, x + 1, ..., n-1
#define FOREACH(x,a) for(auto& (x) : (a) )

#define ALL(v) (v).begin() , (v).end()
#define RALL(v) (v).rbegin(), (v).rend()

#define pb push_back
#define pu push
#define mp make_pair
#define fi first
#define sc second

#define COUT(x) cout << (x) << endl
#define VECCIN(x) for(auto&youso_: (x) )cin>>youso_
#define VECCOUT(x) for(auto&youso_: (x) )cout<<youso_<<" ";cout<<endl

template<class T> inline bool chmax(T& a, T b) { if (a < b) { a = b; return 1; } return 0; }
template<class T> inline bool chmin(T& a, T b) { if (a > b) { a = b; return 1; } return 0; }

// ユークリッドの互除法
ll gcd(ll a, ll b) {
    if (b == 0) return a;
    return gcd(b, a % b);
}

int main(){
    cin.tie(0);
    ios::sync_with_stdio(false);

    int n; cin >> n;
    vector<ll> a(n);
    rep(i, n) cin >> a[i];
    sort(ALL(a));
    ll mgcd1 = 0, mgcd2 = 0, mgcd3 = 0, mgcd4 = 0, mgcd5 = 0, mgcd6 = 0;
    for(ll i = 0; i < n; i++) {
        if(i == n / 2) continue;
        mgcd1 = gcd(a[i], mgcd1);
    }
    for(ll i = 0; i < n; i++) {
        if(i == (n / 2) + 1) continue;
        mgcd2 = gcd(a[i], mgcd2);
    }
    for(ll i = 1; i < n; i++) {
        mgcd3 = gcd(a[i], mgcd3);
    }
    for(ll i = 0; i < n - 1; i++) {
        mgcd4 = gcd(a[i], mgcd4);
    }
    int flg = 0;
    for(ll i = 0; i < n; i++) {
        if(a[i] % 2 == 1 && flg == 0) {flg = 1; continue;}
        mgcd5 = gcd(a[i], mgcd5);
    }
    sort(RALL(v));
    flg = 0;
    for(ll i = 0; i < n; i++) {
        if(a[i] % 2 == 1 && flg == 0) {flg = 1; continue;}
        mgcd6 = gcd(a[i], mgcd6);
    }
    ll ans = max(mgcd1, mgcd2);
    ans = max(mgcd3, ans);
    ans = max(mgcd4, ans);
    ans = max(mgcd5, ans);
    ans = max(mgcd6, ans);
    COUT(ans);
}

Compiler output:
a.cc: In function 'int main()':
a.cc:75:15: error: 'v' was not declared in this scope
   75 |     sort(RALL(v));
      |               ^
a.cc:26:18: note: in definition of macro 'RALL'
   26 | #define RALL(v) (v).rbegin(), (v).rend()
      |                  ^
Language: C++

#include <bits/stdc++.h>
using namespace std;
int gcd(long long a,long long b){
    if(b==0)return a;
    return gcd(b,a%b);
}
int main(void){
    int N;cin>>N;
    vector<long long>V(N);
    vector<long long>V1(N);
    for(int i=0;i<N;i++)cin>>V[i];
    if(N==2){
        if(V[0]>V[1])cout<<V[0]<<endl;
        else cout<<V[1]<<endl;
    }
    else{
    long long D=gcd(V[0],V[1]);V1[1]=D;
    for(int i=2;i<N;i++){
        D=gcd(D,V[i]);
        V1[i]=D;
    }
    int x;
    for(int i=1;i<N;i++){
        if(V1[i]==D){
            x=i;break;
        }
    }
    long long ans=gcd(V[0],V[1]);
    for(int i=2;i<N;i++){
        if(i==x)continue;
        ans=gcd(ans,V[i]);
    }
    long long ans1=gcd(V[1],V[2]);
    for(int i=3;i<N;i++){
        ans1=gcd(ans1,V[i]);
    }
    long long ans2=gcd(V[0],V[2]);
    for(int i=3;i<N;i++){
        ans2=gcd(ans2,V[i]);
    }
    if(ans<ans1)ans=ans1;
    if(ans<ans2)ans=ans2;
    cout<<ans<<endl;
    }

Compiler output:
a.cc: In function 'int main()':
a.cc:44:6: error: expected '}' at end of input
   44 |     }
      |      ^
a.cc:7:15: note: to match this '{'
    7 | int main(void){
      |               ^
Language: C++

#ifdef __GNUC__ 
#include <bits/stdc++.h>
#endif
#include <boost/multiprecision/cpp_int.hpp>
#define ALL(v) std::begin(v),std::end(v)
using namespace std;
namespace mp = boost::multiprecision;
using u6 = std::uint64_t;
using si = std::size_t;
#ifdef __GNUC__ 
#include <bits/stdc++.h>
#endif
using namespace std;
uint64_t gcd(uint64_t l, uint64_t r) {
	if (r == 0)return l;
	return gcd(r, l%r);
}
template <uint64_t maxval>
struct Prime {
	uint64_t primevals[maxval / 8];
	uint64_t primecount;
	constexpr Prime() {
		primecount = 0;
		for (uint64_t i = 2; i < maxval; ++i) {
			for (uint64_t j = 0; j < primecount; ) {
				if (i%primevals[j] == 0) {
					++i; j = 0;
				}
				else {
					++j;
				}
			}
			primevals[primecount] = i;
			++primecount;
		}
	}
	vector<u6> nonfactor;
	u6 commonfactor;
	u6 primeout(vector<u6> &  a) {
		si size = a.size();
		u6 divcount = 0; bool exitflag = true;
		nonfactor.resize(a.size(), 1);
		commonfactor = 1;
		vector<si> indexbuf, indexbuf2;
		si nondivindex = 0;
		indexbuf.reserve(a.size()); indexbuf2.reserve(a.size());
		auto fn = [&](si index,u6 p) {

			if (a[index] > p)exitflag = false;
			auto tmp = __gcd(a[index],p);
			if (tmp != 1) {
				a[index] /= tmp; ++divcount;
				indexbuf.push_back(index);
			}
			else {
				nondivindex = index;
			}
		};
		for (uint64_t i = 0; i < primecount; ) {
			exitflag = true; divcount = 0;
			for (si index=0; index!=a.size(); ++index) {
				fn(index, primevals[i]);
			}
			while (divcount != 0) {
				if (divcount == size - 1) {
					nonfactor[nondivindex] *= primevals[i];
				}
				else if (divcount == size) {
					commonfactor *= primevals[i];
				}
				indexbuf2.swap(indexbuf);
				indexbuf.clear(); divcount = 0;
				for (auto index : indexbuf2)fn(index, primevals[i]);
			}
			++i;
			if (exitflag) {
				break;
			}
		}
		auto elemi = max_element(ALL(nonfactor));
		return *elemi*commonfactor;
	}
};
Prime<50000> prime;

int main() {
	//istringstream in("3\n7 6 8");
  	auto in & =cin;
	u6 l;
	in >> l;
	vector<u6> a(l);
	for (si i = 0; i < l; ++i)in >> a[i];
	cout << prime.primeout(a) << endl;
}

Compiler output:
a.cc:4:10: fatal error: boost/multiprecision/cpp_int.hpp: No such file or directory
    4 | #include <boost/multiprecision/cpp_int.hpp>
      |          ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
compilation terminated.
Language: C++

#include<iostream>
#include<cstdio>
#include<cstdlib>
#include<algorithm>
using namespace std;
int a[100005], b[100005], c[100005];
int gcd(int a, int b){
　　if(b == 0)
　　    return a;
    return gcd(b, a % b);

}




int main()

{

    int n,i,j;

    cin>>n;

    for(i=0;i<n;i++) cin>>a[i];

    b[0]=a[0];

    c[n-1]=a[n - 1];

    for (i=1;i<n;i++)
        b[i]=gcd(b[i-1],a[i]);

    for (i=n-2;i>=0;i--)
        c[i]=gcd(c[i+1],a[i]);

    int zuida=b[n-1];

    for (i=0;i<n;i++){

        if(i==0) zuida=max(zuida,c[1]);

        else if(i==n-1) zuida=max(zuida,b[n-2]);

        else zuida=max(zuida,gcd(b[i-1],c[i+1]));

    }

    cout<<zuida<<endl;

    return 0;

}

Compiler output:
a.cc:8:1: error: extended character 　 is not valid in an identifier
    8 | 　　if(b == 0)
      | ^
a.cc:8:1: error: extended character 　 is not valid in an identifier
a.cc:9:1: error: extended character 　 is not valid in an identifier
    9 | 　　    return a;
      | ^
a.cc:9:1: error: extended character 　 is not valid in an identifier
a.cc: In function 'int gcd(int, int)':
a.cc:8:1: error: '\U00003000\U00003000if' was not declared in this scope
    8 | 　　if(b == 0)
      | ^~~~~~
Language: C++

#ifdef __GNUC__ 
#include <bits/stdc++.h>
#endif
#include <boost/multiprecision/cpp_int.hpp>
#define ALL(v) std::begin(v),std::end(v)
using namespace std;
namespace mp = boost::multiprecision;
using u6 = std::uint64_t;
using si = std::size_t;
#ifdef __GNUC__ 
#include <bits/stdc++.h>
#endif
using namespace std;
uint64_t gcd(uint64_t l, uint64_t r) {
	if (r == 0)return l;
	return gcd(r, l%r);
}
template <uint64_t maxval>
struct Prime {
	uint64_t primevals[maxval / 8];
	uint64_t primecount;
	constexpr Prime() {
		primecount = 0;
		for (uint64_t i = 2; i < maxval; ++i) {
			for (uint64_t j = 0; j < primecount; ) {
				if (i%primevals[j] == 0) {
					++i; j = 0;
				}
				else {
					++j;
				}
			}
			primevals[primecount] = i;
			++primecount;
		}
	}
	vector<u6> nonfactor;
	u6 commonfactor;
	u6 primeout(vector<u6> &  a) {
		si size = a.size();
		u6 divcount = 0; bool exitflag = true;
		nonfactor.resize(a.size(), 1);
		commonfactor = 1;
		vector<si> indexbuf, indexbuf2;
		si nondivindex = 0;
		indexbuf.reserve(a.size()); indexbuf2.reserve(a.size());
		auto fn = [&](si index,u6 p) {

			if (a[index] > p)exitflag = false;
			auto tmp = __gcd(a[index],p);
			if (tmp != 1) {
				a[index] /= tmp; ++divcount;
				indexbuf.push_back(index);
			}
			else {
				nondivindex = index;
			}
		};
		for (uint64_t i = 0; i < primecount; ) {
			exitflag = true; divcount = 0;
			for (si index=0; index!=a.size(); ++index) {
				fn(index, primevals[i]);
			}
			while (divcount != 0) {
				if (divcount == size - 1) {
					nonfactor[nondivindex] *= primevals[i];
				}
				else if (divcount == size) {
					commonfactor *= primevals[i];
				}
				indexbuf2.swap(indexbuf);
				indexbuf.clear(); divcount = 0;
				for (auto index : indexbuf2)fn(index, primevals[i]);
			}
			++i;
			if (exitflag) {
				break;
			}
		}
		auto elemi = max_element(ALL(nonfactor));
		return *elemi*commonfactor;
	}
};
Prime<50000> prime;

int main() {
	//istringstream in("3\n7 6 8");
  	suto in=cin;
	u6 l;
	in >> l;
	vector<u6> a(l);
	for (si i = 0; i < l; ++i)in >> a[i];
	cout << prime.primeout(a) << endl;
}

Compiler output:
a.cc:4:10: fatal error: boost/multiprecision/cpp_int.hpp: No such file or directory
    4 | #include <boost/multiprecision/cpp_int.hpp>
      |          ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
compilation terminated.
Language: C++

#include<bits/stdc++.h>
using namespace std;
int main(void){
    int n;
    cin>>n;
    long long M;
    M=1;
    long long A[n];
    long long B[n];
    long long C[n];
    for(int i=0;i<n;i++){
        cin>>A[i];
        
    }
    for(int i=1;i<n;i++){
        for(int j=1;j<n;j++){
            B[i]=A[0];
            if(j==i){
                C[j]=A[j-1];
                
            }else{
                C[j]=A[j];
            }
            B[i]=_gcd(B[i],C[j]);
        }    
    }
    for(int i=1;i<n;i++){
        
        B[0]=A[1];
        
        B[0]=_gcd(B[0],A[i]);
            
    }
    for(int i=0;i<n;i++){
        M=max(M,B[i]);
    }
    cout<<M<<endl;
    return 0;
    
}


Compiler output:
a.cc: In function 'int main()':
a.cc:24:18: error: '_gcd' was not declared in this scope
   24 |             B[i]=_gcd(B[i],C[j]);
      |                  ^~~~
a.cc:31:14: error: '_gcd' was not declared in this scope
   31 |         B[0]=_gcd(B[0],A[i]);
      |              ^~~~
Language: C++

#include<iostream>
#include<vector>
#include<math.h>

using namespace std;

long dp[1000000001];
 
long gcd(long a, long  b) {
    if(b==0) return a;
    return gcd(b,a%b);
}

long sol(vector<long> a, int skip){
    long res;
    if (skip==0) {
        res = a[1];
        for(int i=0; i<a.size(); i++) {
            if(i == skip) continue;
            res = gcd(res, a[i]);
        }
        return res;
    }

    res = a[0];
    for(int i=0; i<a.size(); i++) {
        if(i == skip) continue;
        res = gcd(res, a[i]);
    }
    return res;
} 

int main() {
    int n;
    cin >> n;
    vector<long> a(n);
    for(int i=0; i<n; i++) cin >> a[i];
    memset(dp, -1, sizeof(dp));

    long res=1;
    for(int i=0; i<n; i++) {
        res = max(res, sol(a, i));
    }

    cout << res << endl;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:38:5: error: 'memset' was not declared in this scope
   38 |     memset(dp, -1, sizeof(dp));
      |     ^~~~~~
a.cc:4:1: note: 'memset' is defined in header '<cstring>'; this is probably fixable by adding '#include <cstring>'
    3 | #include<math.h>
  +++ |+#include <cstring>
    4 |
Language: C++

#include<iostream>
#include<cstring>
#include<math.h>
#include<algorithm>

using namespace std;



int main(){

    long long n;
    cin >> n;

    long long a[n];
    for(int i=0;i<n;i++)cin >> a[i];
    sort(a, a+n);

    long long p;
    long long ans = 1;
    for(long long i=a[n-1];i>1;i--){
        p = 0;
        for(long long j=0;j<n;j++){
            if(a[j]%i!=0)p++;
            if(p==3){
                while(a[n-1]%i!=0 && a[n-2]%i!=0)i--;
                i += 1;
                break;
        }
        if(p<2){
            ans = i;
            break;
        }
    }
    cout << ans << endl;

}


Compiler output:
a.cc: In function 'int main()':
a.cc:37:2: error: expected '}' at end of input
   37 | }
      |  ^
a.cc:10:11: note: to match this '{'
   10 | int main(){
      |           ^
Language: C++

#include<bits/stdc++.h>
using namespace std;

int N;

	cin>>N;
	vector<int> A(N);

	for(int i=0;i<N;i++){
      cin >>A.at(i);
    }
	A.at(0)=2;
	cout<<2<<endl;
	return;
}
      

Compiler output:
a.cc:6:9: error: 'cin' does not name a type
    6 |         cin>>N;
      |         ^~~
a.cc:9:9: error: expected unqualified-id before 'for'
    9 |         for(int i=0;i<N;i++){
      |         ^~~
a.cc:9:21: error: 'i' does not name a type
    9 |         for(int i=0;i<N;i++){
      |                     ^
a.cc:9:25: error: 'i' does not name a type
    9 |         for(int i=0;i<N;i++){
      |                         ^
a.cc:12:9: error: 'A' does not name a type
   12 |         A.at(0)=2;
      |         ^
a.cc:13:9: error: 'cout' does not name a type
   13 |         cout<<2<<endl;
      |         ^~~~
a.cc:14:9: error: expected unqualified-id before 'return'
   14 |         return;
      |         ^~~~~~
a.cc:15:1: error: expected declaration before '}' token
   15 | }
      | ^
Language: C++

#include <algorithm>
#include <cassert>
#include <iostream>
#include <map>
#include <vector>

static const int IINF = 1 << 30;
static const long long LINF = 1LL << 60;
static const long long MOD = 1.0e+9 + 7;

template <typename T> std::vector<T> vectors(std::size_t n, T val) {
  return std::vector<T>(n, val);
}

template <typename T, typename... Args>
auto vectors(std::size_t n, Args... args) {
  return std::vector<decltype(vectors<T>(args...))>(n, vectors<T>(args...));
}

template <class T> inline bool chmin(T &a, const T &b) {
  return (a > b) ? a = b, true : false;
}

template <class T> inline bool chmax(T &a, const T &b) {
  return (a < b) ? a = b, true : false;
}

template <class T> inline void chadd(T &a, const T &b) {
  a += b, a %= MOD;
  // TODO minus case
}

template <class T>
std::ostream &operator<<(std::ostream &s, const std::vector<T> &v) {
  if (v.empty())
    return s;
  s << *v.begin();
  for (auto iter = v.begin() + 1; iter != v.end(); ++iter)
    if (std::is_fundamental<T>::value)
      s << " " << *iter;
    else
      s << std::endl << *iter;
  return s;
}

long long gcd(long long a, long long b) {
  return b != 0 ? gcd(b, a % b) : a;
}

int main() {
  // Input
  int N;
  std::cin >> N;

  std::vector<long long> A(N);
  for (int i = 0; i < N; ++i) {
    std::cin >> A[i];
  }

  // Main
  long long current = A[0];
  int neckIndex = 0;
  for (int i = 1; i < N; ++i) {
    long long tmp = gcd(current, A[i]);
    if (tmp < current) {
      current = tmp;
      neckIndex = i;
    }
  }
  assert(neckIndex <= N - 1);
  // // assert(neckIndex != -1);
  if (neckIndex == 0) {
    // std::cout << current << std::endl;
    // return 0;

    long long tmp = A[1];
    for (int i = 1; i < N; ++I)
      tmp = gcd(tmp, A[i]);
    std::cout << tmp << std::endl;
  }

  // std::cout << "neckIndex: " << neckIndex << std::endl;
  // std::cout << "current: " << current << std::endl;

  long long res1 = A[0];
  for (int i = 0; i < N; ++i) {
    if (i == neckIndex)
      continue;
    res1 = gcd(res1, A[i]);
  }

  long long res2 = A[0];
  for (int i = 0; i < N; ++i) {
    if (i + 1 == neckIndex)
      continue;
    res2 = gcd(res2, A[i]);
  }

  // Output
  long long res = res1;
  chmax(res, res2);

  long long res3 = A[1];
  if (neckIndex == 1) {
    // res3 = A[1];
    for (int i = 1; i < N; ++i) {
      res3 = gcd(res3, A[i]);
    }

    chmax(res, res3);
  }

  if (neckIndex == N - 1) {
    long long tmp = A[0];
    for (int i = 0; i < N - 1; ++i)
      tmp = gcd(tmp, A[i]);
    chmax(res, tmp);

    long long tmp2 = A[1];
    for (int i = 0; i < N; ++i) {
      if (i == N -2)
        continue;
      tmp2 = gcd(tmp2, A[i]);
    }
    chmax(res, tmp2);

  }

  if (N == 2) {
    chmax(res, A[0]);
    chmax(res, A[1]);
  }

  std::cout << res << std::endl;

  return 0;
}


Compiler output:
a.cc: In function 'int main()':
a.cc:77:30: error: 'I' was not declared in this scope
   77 |     for (int i = 1; i < N; ++I)
      |                              ^
Language: C

#include <stdio.h>
#include <iostream>
#include <stdlib.h>
#include <utility>
#include <math.h>
#include <stdexcept>
#include <algorithm>
#include <vector>
#include <cstring>
#include <cassert>
#include <string.h>

using namespace std;
#define  rep(i,n) for(int i=0;i<n;i++)
#define  rrep(i,n) for(int i=n;i>0;i--)
#define  REP(i,a,b) for(int i=a;i<b;i++)
typedef long long int lld;
typedef vector<lld> vl;
typedef vector<int> vi;
typedef vector<string> vs;



//int arr[N]
////sort(arr,arr +N)

//vector <int> hoge
////sort(hoge.begin(),hoge.end());
///min_element(hoge.begin(),hoge.end();　最小値　　　最大値はmax_element();

int gcd(int a,int b);
int main() {

	int n, ans = 0, tmp = 0, x, y, G, GCD;
	cin >> n;
	vi a(10000000), b;


	rep(i, n)
		cin >> a[i];



	rep(i, n) {
		if(i==0)
			tmp = a[1];
		else
			tmp=a[0];

		rep(m, n) {
			if(m!=i)
				tmp=gcd(tmp,a[m]);
		}
		b.push_back(tmp);
		//cout<<tmp<<endl;
	}
	cout << *max_element(b.begin(), b.end()) << endl;
}


int gcd(int a,int b){
 	if(a<b)
 		gcd(b,a);
	int tmp;
	while(tmp=a%b){
		a=b;
		b=tmp;
	}

	return b;
}

Compiler output:
main.c:2:10: fatal error: iostream: No such file or directory
    2 | #include <iostream>
      |          ^~~~~~~~~~
compilation terminated.
Language: C++

#include<iostream>
#include<string>
#include<vector>
#include<algorithm>
#include<unordered_map>
#include<stdio.h>
#include<map>
using namespace std;
typedef long long ll;
ll mod = 998244353;
int gcd(int a, int b){
	return (b > 0)? gcd(b, a % b) : a ;
}
int main(){
	int N;
	cin>>N;
	vector<int>A(N);
	ll G[4] = {};
	cin>>A[0];
	for(int i = 1; i < N; i++){
		
		cin>>A[i];
		G[0] = gcd(A[i - 1], A[i]);
		G[1] =if(G[1] > gcd(A[i], A[0]))?G[1]:gcd(A[i], A[0]);
		G[3] = max((int)G[3], min((int)G[1], (int)gcd(A[i], A[0])));
		if(i != 1)G[2] = gcd(A[i - 1], A[i]);
	}

	if(G[2] < G[1]){
		if(G[3] > G[1]){
			cout<<G[3]<<endl;
		}else{
		cout<<G[1]<<endl;
		}
	}else{
		if(G[3] > G[2]){
			cout<<G[3]<<endl;
		}
		cout<<G[2]<<endl;
	}
}

Compiler output:
a.cc: In function 'int main()':
a.cc:24:23: error: expected primary-expression before 'if'
   24 |                 G[1] =if(G[1] > gcd(A[i], A[0]))?G[1]:gcd(A[i], A[0]);
      |                       ^~
Language: Java

import java.util.*;
import java.util.concurrent.ThreadLocalRandom;

import static java.lang.System.*;
public class abc125 {
	public static void main(String[] args) {
		Scanner sc = new Scanner(System.in);
		C(sc);
	}

	

	public static void C(Scanner sc) {
		int N = sc.nextInt();
		int gd;
		int[] A = new int[N];
		gd = A[0] = sc.nextInt();
		for(int i=1;i<N;i++) {
			A[i] = sc.nextInt();
			gd = gcd(gd, A[i]);
		}
		int except=0;
		boolean alec = false;
		int ngd1 = A[0]/gd;
		int ngd2 = A[1]/gd; //0 except
		for(int i=1;i<N;i++) {
			A[i] /= gd;
			ngd2 = gcd(ngd2,A[i]);
			if(alec==false && gcd(ngd1,A[i])==1) {
				alec = true;
				except = i;
			}
			else ngd1 = gcd(ngd1,A[i]);
		}
		
		for(int i=1;i<except;i++) {
			int ngd = A[0]/gd;
			for(int j=1;j<N;j++) {
				if(j==i) continue;
				ngd = gcd(ngd,A[j]);
			}
			if(ngd>ngd1) ngd1 = ngd;
		}
		out.println(gd*Math.max(ngd1, ngd2));
	}
	public static int gcd(int a, int b) {
		if(b==0) return a;
		return gcd(b,a%b);
	}

}

Compiler output:
Main.java:5: error: class abc125 is public, should be declared in a file named abc125.java
public class abc125 {
       ^
1 error
Language: C++

#include <iostream>
#include <queue>
#include <limits>
using namespace std;

int
gcd(int a, int b) {
  if (b == 0) { return a; }
  return gcd(b, a % b);
}

int
main(int argc, char** argv) {
  int N; cin >> N;
  priority_queue<int> A;
  for (int i = 0; i < N; i++) {
    int a; cin >> a; A.push(a);
  }
  priority_queue<int, vector<int>, greater<int>> B;
  int max_val = A.top(); A.pop();
  // B.push(max_val);
  while (!A.empty()) {
    B.push(gcd(max_val, A.top()));
    A.pop();
  }
  B.pop();
  if (B.top() == 1) {
    cout << 1 << endl;
  } else {
    temp_value = B.top();
    int value = max_val;
    while (!B.empty()) {
      value = gcd(value, B.top());
      B.pop();
    }
    if (value < temp_value) {
      cout << value << endl;
    } else {
      cout << temp_value << endl;
    }
  }
}

Compiler output:
a.cc: In function 'int main(int, char**)':
a.cc:30:5: error: 'temp_value' was not declared in this scope
   30 |     temp_value = B.top();
      |     ^~~~~~~~~~
Language: C++


#include <iostream>
#include <bits/stdc++.h>
using namespace std;
#define REP(i,n) FOR(i,0,n)
#define FOR(i,a,b) for(int i=(a),i##Len_=(b);i<i##Len_;i++)


int main() {
    int N;
    cin >> N;
    vector<int> X(N);
    REP(i, N) {
        cin >> X[i];
    }]
    //maxsearch
    int max = 0;
    REP(i, N) {
        if (max < X[i]) max = X[i];
    }
    int count = max;
    while (count--){
    int ppp= 0;
    REP(i, N) {
        //あまりぜろでばければ

        if ((count % X[i])!= 0) ppp++;

        if(ppp == 0) continue;

        if(ppp == 1) break;
    }

    cout << count << endl;

    }



}



Compiler output:
a.cc: In function 'int main()':
a.cc:15:6: error: expected primary-expression before ']' token
   15 |     }]
      |      ^
a.cc:19:22: error: call to non-'constexpr' function 'std::vector<_Tp, _Alloc>::reference std::vector<_Tp, _Alloc>::operator[](size_type) [with _Tp = int; _Alloc = std::allocator<int>; reference = int&; size_type = long unsigned int]'
   19 |         if (max < X[i]) max = X[i];
      |                      ^
In file included from /usr/include/c++/14/vector:66,
                 from /usr/include/c++/14/functional:64,
                 from /usr/include/x86_64-linux-gnu/c++/14/bits/stdc++.h:53,
                 from a.cc:3:
/usr/include/c++/14/bits/stl_vector.h:1128:7: note: 'std::vector<_Tp, _Alloc>::reference std::vector<_Tp, _Alloc>::operator[](size_type) [with _Tp = int; _Alloc = std::allocator<int>; reference = int&; size_type = long unsigned int]' declared here
 1128 |       operator[](size_type __n) _GLIBCXX_NOEXCEPT
      |       ^~~~~~~~
a.cc:19:13: error: parse error in template argument list
   19 |         if (max < X[i]) max = X[i];
      |             ^~~~~~~~~~
a.cc:19:23: error: cannot resolve overloaded function 'max' based on conversion to type 'bool'
   19 |         if (max < X[i]) max = X[i];
      |                       ^
a.cc:19:34: error: overloaded function with no contextual type information
   19 |         if (max < X[i]) max = X[i];
      |                                  ^
a.cc:21:17: error: cannot resolve overloaded function 'max' based on conversion to type 'int'
   21 |     int count = max;
      |                 ^~~
Language: C++

#include <iostream>
#include <vector>

using namespace std;

std::vector<int> enum_div(int n)//nの約数を列挙
{
	std::vector<int> ret;
	for(int i=1 ; i*i<=n ; ++i)
	{
		if(n%i == 0)
		{
			ret.push_back(i);
			if(i*i!=n)
			{
				ret.push_back(n/i);
			}
		}
	}
    sort(ret.begin(), ret.end(), greater<int>());
	return ret;
}

int main(){
    int N;
    cin >> N;

    vector <int> A(N);
    for(int i = 0; i < N; i++){
        cin >> A[i];
    }

    sort(A.begin(), A.end());
    
    int result0 = A[0];
    vector <int> EA0 = enum_div(A[0]);
    int j = 0;

    while(result0 > 0){
        int count = 0;
        result0 = EA0[j];
        for(int i = 0; i < N; i++){
            if (A[i] % result0 != 0) {
                count += 1;
                if (count >= 2) {
                    break;
                }   
            }
        }
        if (count <= 1) {
            break;
        }else{
            j += 1;
        }
    }

    int result1 = A[1];
    vector <int> EA = enum_div(A[1]);
    j = 0;
    while(result1 > 0){
        int count = 0;
        result1 = EA[j];
        for(int i = 0; i < N; i++){
            if (A[i] % result1 != 0) {
                count += 1;
            }
        }
        if (count <= 1) {
            break;
        }else{
            j += 1;
        }
    }

    if (result0 >= result1) {
        cout << result0 << endl;
    }else{
        cout << result1 << endl;
    }
    
    
    

    return 0;
}

Compiler output:
a.cc: In function 'std::vector<int> enum_div(int)':
a.cc:20:5: error: 'sort' was not declared in this scope; did you mean 'short'?
   20 |     sort(ret.begin(), ret.end(), greater<int>());
      |     ^~~~
      |     short
a.cc: In function 'int main()':
a.cc:33:5: error: 'sort' was not declared in this scope; did you mean 'short'?
   33 |     sort(A.begin(), A.end());
      |     ^~~~
      |     short
Language: C++

#include <algorithm>
#include <iostream>
#include <vector>
#include <cmath>
using namespace std;


 
int main() {
  int n,p,max=0,s=1,n2;
  cin >> n;
  n2 = n-1;
  vector(int) a(n);
  for(int i=0;i<n;i++){
    cin >> a[i];
    if(a[i]>max) max = a[i];
  }
  int b;
  for(b=2;b<=max;b++){
    p=0;
    for(int j=0;j<n;j++){
      if(a[j]>b){
        a.erase(a.begin() + n);
        n--;
      }
      if(a[j]%b==0) p++;
    }
    if(p==n2) s = b;
  }
  cout << s << endl;
  
}


Compiler output:
a.cc: In function 'int main()':
a.cc:13:9: error: missing template arguments before '(' token
   13 |   vector(int) a(n);
      |         ^
a.cc:13:10: error: expected primary-expression before 'int'
   13 |   vector(int) a(n);
      |          ^~~
a.cc:15:12: error: 'a' was not declared in this scope
   15 |     cin >> a[i];
      |            ^
a.cc:22:10: error: 'a' was not declared in this scope
   22 |       if(a[j]>b){
      |          ^
a.cc:26:10: error: 'a' was not declared in this scope
   26 |       if(a[j]%b==0) p++;
      |          ^
Language: C++

#include <bits/stdc++.h>
using namespace std;

#define MEM(a, b) memset(a, b, sizeof a);
#define REP(i, k) for(int i = (0); i < (k); i++ )

#define ALL(cont) cont.begin(), cont.end()
#define RALL(cont) cont.begin(), cont.end()
#define FOREACH(it, l) for(auto it=l.begin(); it != l.end(); it++)
#define mp make_pair
#define pb push_back
#define debug puts("FANGO")
#define INF (int)INT_MAX
#define EPS (int)1e-9
#define PI acos(-1)
#define MOD 1000000007
typedef pair<int, int> pii;
typedef pair<int, pii> piii;
typedef vector<int> vi;
typedef vector<string> vs;
typedef vector<pii> vii;
typedef vector<piii> viii;
typedef long long int32;
typedef unsigned long long uint32;
typedef long long int int64;
typedef unsigned long long int uint64;

template <class T>
T sqr(T val) {
  return val * val;
}

int gcd(int a, int b) {
  if (b == 0) return a;
  else if (a >= b) return gcd(b, a % b);
  else return gcd(b, a);
}

void solve(__attribute__((unused)) int tc = 0) {
  int n;
  cin >> n;
  vi v;
  REP(i, n) {
    int x;
    cin >> x;
    v.pb(x);
  }

  vi g1, g2;
  REP(i, n) {
    if (g1.empty()) g1.pb(v[i]);
    else g1.pb(gcd(g1.back(), v[i]));
    if (g2.empty()) g2.pb(v[n - i - 1]);
    else g2.pb(gcd(g2.back(), v[n - i - 1]));
  }

  int ans = -INF;

  REP(i, n) {
    if (i == 0) {
      ans = max(ans, max(gcd(v[i], g2[n - 2 - i]), g2[n - 2 - i]));
    }
    else if (i == n - 1) {
      ans = max(ans, max(gcd(v[i], g1[i - 1]), g1[i - 1]));
    }
    else {
      int q = gcd(g1[i - 1], g2[n - 2 - i]);
      ans = max(ans, max(gcd(v[i], q), q)));
    }
  }

  cout << ans << endl;


  return;
}

int main() {
  //freopen("input.txt", "r", stdin);
  //freopen("output.txt", "w", stdout);
  cin.tie(0);
  ios_base::sync_with_stdio(false);

  /*int TC;
  cin >> TC;
  REP(tc, TC) {
    solve(tc);
  }*/
  solve();
}


Compiler output:
a.cc: In function 'void solve(int)':
a.cc:68:43: error: expected ';' before ')' token
   68 |       ans = max(ans, max(gcd(v[i], q), q)));
      |                                           ^
      |                                           ;
Language: C++

#include <iostream>
#include <algorithm>
using namespace std;
#define MAX 1000000001

int N;
long int A[MAX];
long int B[MAX];
long int min_value = MAX;
int min_idx = 0;
// long int second_value = MAX;

void min_lists(){
    // require min_value of A aside from 0
    for (int i = 0; i < N; i++){
        if (A[i] == 0){
            continue;
        }
        if(min_value > A[i]){
            // second_value = min_value;
            min_value = A[i];
            min_idx = i;
        // }else if(second_value > A[i]){
        //     second_value = A[i];
        }
    }
}

bool only_one(){
    // check if only one value is non-zero in A
    int num = 0;
    for (int i = 0; i < N; i++){
        if (A[i] != 0){
            num += 1;
        }
        if(num > 1){
            return false;
        }
    }
    return true;
}

void solve(){
    while(true){
        min_lists();
        // cout << min_value << endl;
        int cnum = 0;
        for (int i = 0; i < N; i++){
            if ((A[i] == min_value) && cnum == 0){
                cnum += 1;
                continue;
            }else{
                A[i] %= min_value;
            }
        }
        if (only_one()){
            break;
        }   
    }
    for (int i = 0; i < N; i++){
        A[i] = B[i];
    }

    while(true){
        A[min_idx] = 0;
        min_value = MAX;
        min_lists();
        // cout << min_value << " " << second_value << endl;
        int cnum = 0;
        for (int i = 0; i < N; i++){
            if (A[i] == min_value){
                continue;
            }else{
                A[i] %= min_value;
            }
        }
        if (only_one()){
            break;
        }   
    }
}

int main(){
    cin >> N;
    for (int i = 0; i < N; i++){
        cin >> A[i];
        B[i] = A[i];
    }
    solve();
    cout << min_value << endl;
    return 0;
}

Compiler output:
/tmp/cc7qsyhi.o: in function `min_lists()':
a.cc:(.text+0x72): relocation truncated to fit: R_X86_64_PC32 against symbol `min_idx' defined in .bss section in /tmp/cc7qsyhi.o
/tmp/cc7qsyhi.o: in function `solve()':
a.cc:(.text+0x1a7): relocation truncated to fit: R_X86_64_PC32 against symbol `B' defined in .bss section in /tmp/cc7qsyhi.o
a.cc:(.text+0x1d9): relocation truncated to fit: R_X86_64_PC32 against symbol `min_idx' defined in .bss section in /tmp/cc7qsyhi.o
/tmp/cc7qsyhi.o: in function `main':
a.cc:(.text+0x319): relocation truncated to fit: R_X86_64_PC32 against symbol `B' defined in .bss section in /tmp/cc7qsyhi.o
collect2: error: ld returned 1 exit status
Language: C

#include <stdio.h>
#include <cstdio>

int gcd(int a, int b){
  if (b == 0){
    return a;
  }
  return gcd(b, a%b);
}

int main(){
  int N;
  scanf("%d", &N);
  int A[N];
  for(int i = 0; i < N; ++i){
    scanf("%d", &A[i]);
  }
  int ans = 0;
  for(int j = 0; j < N; ++j){
    int agcd = A[0];
    for(int k = 0; k < N; ++k){
      if(j != k){
        agcd = gcd(agcd, k);
      }
    }
    if(ans < agcd){
      ans = agcd;
    }
  }
  printf("%d",&ans);
}

Compiler output:
main.c:2:10: fatal error: cstdio: No such file or directory
    2 | #include <cstdio>
      |          ^~~~~~~~
compilation terminated.
Language: C++

#include <bits/stdc++.h>
typedef long long ll;
#define REP(i,a) for(int i = 0; i < (a); i++)
using namespace std;

int GCD(int m, int n){
	int remain
	while((remain = m % n) != 0){
		m = n;
		n = remain;
	}
}

int main(){
	int n;
	cin >> n;
	int a[n];
	REP(i,n) cin >> a[i];
	if(n == 2){
		cout << max(a[0], a[1]) << endl;
		return 0;
	}
	int g[n];
	REP(i,n - 1){
		g[i] = GCD(a[i], a[i + 1]);
	}
	g[n - 1] = GCD(a[n - 1], a[0]);
	sort(g, g + n);
	cout << g[2] << endl;
}

Compiler output:
a.cc: In function 'int GCD(int, int)':
a.cc:8:9: error: expected initializer before 'while'
    8 |         while((remain = m % n) != 0){
      |         ^~~~~
a.cc:12:1: warning: no return statement in function returning non-void [-Wreturn-type]
   12 | }
      | ^
Language: C++

#include<bits/stdc++.h>
int a[100100],b[100100]={0};
using namespace std;
int main()
{
    long long  n,m=0,k=0,i,x=1E10,sum=0,y,j;
    cin>>n;
    for(i=0;i<n;i++)
    {
        cin>>a[i];
    }
    if(n==2)
        cout<<max(a[0],a[1])<<endl;
    if(n>2)
    {
        for(i=0;i<n;i++)
        {
            int p=1;
            for(j=0;j<n;j++)
            {
                if(p==1&&j!=i)
                {
                 p++;   sum=a[j];
                }

                if(j!=i)
                sum=__gcd(sum,a[j]);
            }
            b[i]=sum;
        }
        sort(b,b+n);
       cout<<b[n-1]<<endl;

    }

    return 0;
}


Compiler output:
a.cc: In function 'int main()':
a.cc:27:26: error: no matching function for call to '__gcd(long long int&, int&)'
   27 |                 sum=__gcd(sum,a[j]);
      |                     ~~~~~^~~~~~~~~~
In file included from /usr/include/c++/14/algorithm:61,
                 from /usr/include/x86_64-linux-gnu/c++/14/bits/stdc++.h:51,
                 from a.cc:1:
/usr/include/c++/14/bits/stl_algo.h:1137:5: note: candidate: 'template<class _EuclideanRingElement> _EuclideanRingElement std::__gcd(_EuclideanRingElement, _EuclideanRingElement)'
 1137 |     __gcd(_EuclideanRingElement __m, _EuclideanRingElement __n)
      |     ^~~~~
/usr/include/c++/14/bits/stl_algo.h:1137:5: note:   template argument deduction/substitution failed:
a.cc:27:26: note:   deduced conflicting types for parameter '_EuclideanRingElement' ('long long int' and 'int')
   27 |                 sum=__gcd(sum,a[j]);
      |                     ~~~~~^~~~~~~~~~
Language: Java


public class Main {

	public static void main(String[] args){
		Scanner sc = new Scanner(System.in);
		int N=sc.nextInt();
		int[] A=new int[N];
		for(int i=0;i<N;i++)A[i]=sc.nextInt();
		sc.close();
		int max=1;
		if(N==2){
			max=Math.max(A[0],A[1]);
		}else{
			int g=gcd(A[0], A[1]);
			for(int i=0;i<N;i++){
				if(i==0){
					g=gcd(A[1], A[2]);
					max=Math.max(max,gcd(A,i,N,g));
				}else if(i==1){
					g=gcd(A[0], A[1]);
					max=Math.max(max,gcd(A,i,N,g));
				}else{
					max=Math.max(max,gcd(A,i,N,g));
				}
			}
		}
		System.out.println(max);
	}

	public static final int gcd(int[] v,int j,int len,int g) {
		for (int i=1;i<len-1;i++){
			if(j==i+1)continue;
			g = gcd(g, v[i+1]);
		}
		return g;
	}

	private static final int gcd (int a, int b) {return b>0?gcd(b,a%b):a;}

}

Compiler output:
Main.java:5: error: cannot find symbol
		Scanner sc = new Scanner(System.in);
		^
  symbol:   class Scanner
  location: class Main
Main.java:5: error: cannot find symbol
		Scanner sc = new Scanner(System.in);
		                 ^
  symbol:   class Scanner
  location: class Main
2 errors