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

import math
N,X=map(int,input().split(" "))
x=np.array(list(map(int,input().split(' '))))
y=abs(x-X)
print(reduce(math.gcd,y))


Compiler output:
a.cc:1:1: error: 'import' does not name a type
    1 | import math
      | ^~~~~~
a.cc:1:1: note: C++20 'import' only available with '-fmodules-ts'
Language: C++


int main(){
  int N,X,maxD=0;
  std::cin>>N>>X;
  int a[N];

  for(int i=0;i<N;i++) std::cin>>a[i];

  for(int i=0;i<N;i++) maxD=std::max(maxD,a[i]);

  int minD=std::abs(X-maxD);

  for(int i=0;i<N;i++)
      minD=std::min(minD,std::abs(X-a[i]));

  for(int i=0;i<N;i++)
         minD=GCD(std::abs(X-a[i]),minD);

  std::cout<<minD<<std::endl;

  return 0;
  }

Compiler output:
a.cc: In function 'int main()':
a.cc:4:8: error: 'cin' is not a member of 'std'
    4 |   std::cin>>N>>X;
      |        ^~~
a.cc:1:1: note: 'std::cin' is defined in header '<iostream>'; this is probably fixable by adding '#include <iostream>'
  +++ |+#include <iostream>
    1 | 
a.cc:7:29: error: 'cin' is not a member of 'std'
    7 |   for(int i=0;i<N;i++) std::cin>>a[i];
      |                             ^~~
a.cc:7:29: note: 'std::cin' is defined in header '<iostream>'; this is probably fixable by adding '#include <iostream>'
a.cc:9:34: error: 'max' is not a member of 'std'
    9 |   for(int i=0;i<N;i++) maxD=std::max(maxD,a[i]);
      |                                  ^~~
a.cc:11:17: error: 'abs' is not a member of 'std'
   11 |   int minD=std::abs(X-maxD);
      |                 ^~~
a.cc:14:17: error: 'min' is not a member of 'std'
   14 |       minD=std::min(minD,std::abs(X-a[i]));
      |                 ^~~
a.cc:14:31: error: 'abs' is not a member of 'std'
   14 |       minD=std::min(minD,std::abs(X-a[i]));
      |                               ^~~
a.cc:17:24: error: 'abs' is not a member of 'std'
   17 |          minD=GCD(std::abs(X-a[i]),minD);
      |                        ^~~
a.cc:17:15: error: 'GCD' was not declared in this scope
   17 |          minD=GCD(std::abs(X-a[i]),minD);
      |               ^~~
a.cc:19:8: error: 'cout' is not a member of 'std'
   19 |   std::cout<<minD<<std::endl;
      |        ^~~~
a.cc:19:8: note: 'std::cout' is defined in header '<iostream>'; this is probably fixable by adding '#include <iostream>'
a.cc:19:25: error: 'endl' is not a member of 'std'
   19 |   std::cout<<minD<<std::endl;
      |                         ^~~~
a.cc:1:1: note: 'std::endl' is defined in header '<ostream>'; this is probably fixable by adding '#include <ostream>'
  +++ |+#include <ostream>
    1 |
Language: C

#include<stdio.h>
#include<stdlib.h>
int gcd(int,int*,int);
int GCD(int,int);
int main(void) {
  int N,X,x[100000],ans,i;
  scanf("%d %d",&N,&X);
  for(i=0;i<N;i++)scanf("%d",&x[i]);
  ans=gcd(N,x,X);
  printf("%d",ans);
  return 0;
}
int gcd(int N,int *x,int X) {
  int i,gcd=(int)abs(x[0]-X,2.0);
  if(N!=1)for(i=1;i<N;i++)gcd=GCD(gcd,abs(x[i]-X,2.0));
  return gcd;
}
int GCD(int A,int B) {
  int gcd;
  if(A==1){
    gcd=B;
  } else {
    if(B==1){
      gcd=A;
    } else {
      if(A<B) {
        B = B%A;
      } else {
        A = A%B;
      }
      gcd=GCD(A,B);
    }
  }
  return gcd;
}


Compiler output:
main.c: In function 'gcd':
main.c:14:18: error: too many arguments to function 'abs'
   14 |   int i,gcd=(int)abs(x[0]-X,2.0);
      |                  ^~~
In file included from main.c:2:
/usr/include/stdlib.h:980:12: note: declared here
  980 | extern int abs (int __x) __THROW __attribute__ ((__const__)) __wur;
      |            ^~~
main.c:15:39: error: too many arguments to function 'abs'
   15 |   if(N!=1)for(i=1;i<N;i++)gcd=GCD(gcd,abs(x[i]-X,2.0));
      |                                       ^~~
/usr/include/stdlib.h:980:12: note: declared here
  980 | extern int abs (int __x) __THROW __attribute__ ((__const__)) __wur;
      |            ^~~
Language: Java

#include <iostream>
#include <utility>
#include <map>
#include <string>
#include <vector>
#include <algorithm>
#include <functional>
#include <array>
#include <math.h>
#include <sstream>
typedef long long ll;
using namespace std;

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

int lcm(int a, int b){
    int ans = a * b / gcd(a, b);
    return ans;
}

int main(int argc, char const *argv[])
{
    int n, x;
    std::cin >> n >> x;
    vector<int> a(n);
    for (int i = 0; i < n; i++) {
        std::cin >> a[i];
    }
    a.push_back(x);
    sort(a.begin(), a.end());
    vector<int> b(n);
    for (int i = 0; i < n; i++) {
        b[i] = a[i+1]-a[i];
    }
    sort(b.begin(), b.end());
    int ans = gcd(b[0], b[1]);
    for (int i = 2; i < n; i++) {
        ans = gcd(ans, b[i]);
    }
    std::cout << ans << std::endl;
    return 0;
}

Compiler output:
Main.java:1: error: illegal character: '#'
#include <iostream>
^
Main.java:2: error: illegal character: '#'
#include <utility>
^
Main.java:3: error: illegal character: '#'
#include <map>
^
Main.java:4: error: illegal character: '#'
#include <string>
^
Main.java:5: error: illegal character: '#'
#include <vector>
^
Main.java:6: error: illegal character: '#'
#include <algorithm>
^
Main.java:7: error: illegal character: '#'
#include <functional>
^
Main.java:8: error: illegal character: '#'
#include <array>
^
Main.java:9: error: illegal character: '#'
#include <math.h>
^
Main.java:10: error: illegal character: '#'
#include <sstream>
^
Main.java:12: error: class, interface, enum, or record expected
using namespace std;
^
Main.java:14: error: unnamed classes are a preview feature and are disabled by default.
int gcd(int a, int b){
^
  (use --enable-preview to enable unnamed classes)
Main.java:28: error: not a statement
    std::cin >> n >> x;
                  ^
Main.java:29: error: not a statement
    vector<int> a(n);
                  ^
Main.java:31: error: not a statement
        std::cin >> a[i];
                 ^
Main.java:35: error: not a statement
    vector<int> b(n);
                  ^
Main.java:44: error: not a statement
    std::cout << ans << std::endl;
                     ^
Main.java:25: error: <identifier> expected
int main(int argc, char const *argv[])
                       ^
Main.java:29: error: ';' expected
    vector<int> a(n);
                 ^
Main.java:29: error: ';' expected
    vector<int> a(n);
                   ^
Main.java:35: error: ';' expected
    vector<int> b(n);
                 ^
Main.java:35: error: ';' expected
    vector<int> b(n);
                   ^
22 errors
Language: C++

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

int main()
{
	int n;
	cin >> n;
	long long a[n];
	for(int i = 0; i < n;i++)
	{
		cin >> a[i];
	}

	sort(a.begin(), a.end());
	long long ans = a[1] - a[0];
	for(int i = 0; i < n;i++)
	{
		ans = __gcd(a[i]-a[i-1],ans);
	}
	cout << ans << endl;
}


Compiler output:
a.cc: In function 'int main()':
a.cc:14:16: error: request for member 'begin' in 'a', which is of non-class type 'long long int [n]'
   14 |         sort(a.begin(), a.end());
      |                ^~~~~
a.cc:14:27: error: request for member 'end' in 'a', which is of non-class type 'long long int [n]'
   14 |         sort(a.begin(), a.end());
      |                           ^~~
Language: C++

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

int main() {
    long Y, temp1=0,num=99999999, ans=0;
    int N, count = 0;
    cin >> N >> Y;
    bool flag = false;
    vector <long> x(N);
    vector <long> d;
    
    for(int i = 0; i < N; i++) {
        cin >> x.at(i);
        temp1 = abs(Y - x.at(i));
        if(temp1 < num) num = temp1;
    }

    if(x.size() > 1){
        for(int i = 1; i < x.size(); i++){
            d.push_back(x.at(i-1)-x.at(i));
        }
    }else d.push_back(num);
    
    for(long i = num; i > 0; i--){
        if(flag) break;
        for(int j = 0; j < d.size(); j++){
            if(j == 0) count = 0;
            if(d.at(j)% i ==0) count +=1;
            if(count == d.size()){
                ans = i;
                flag = true;
                break;
            }
        }
    }cout << ans << endl;
}


Compiler output:
a.cc:1:2: error: invalid preprocessing directive #incl; did you mean #include?
    1 | #incl#include <bits/stdc++.h>
      |  ^~~~
      |  include
a.cc: In function 'int main()':
a.cc:7:5: error: 'cin' was not declared in this scope
    7 |     cin >> N >> Y;
      |     ^~~
a.cc:1:1: note: 'std::cin' is defined in header '<iostream>'; this is probably fixable by adding '#include <iostream>'
  +++ |+#include <iostream>
    1 | #incl#include <bits/stdc++.h>
a.cc:9:5: error: 'vector' was not declared in this scope
    9 |     vector <long> x(N);
      |     ^~~~~~
a.cc:1:1: note: 'std::vector' is defined in header '<vector>'; this is probably fixable by adding '#include <vector>'
  +++ |+#include <vector>
    1 | #incl#include <bits/stdc++.h>
a.cc:9:13: error: expected primary-expression before 'long'
    9 |     vector <long> x(N);
      |             ^~~~
a.cc:10:13: error: expected primary-expression before 'long'
   10 |     vector <long> d;
      |             ^~~~
a.cc:13:16: error: 'x' was not declared in this scope
   13 |         cin >> x.at(i);
      |                ^
a.cc:14:17: error: 'abs' was not declared in this scope; did you mean 'ans'?
   14 |         temp1 = abs(Y - x.at(i));
      |                 ^~~
      |                 ans
a.cc:18:8: error: 'x' was not declared in this scope
   18 |     if(x.size() > 1){
      |        ^
a.cc:20:13: error: 'd' was not declared in this scope
   20 |             d.push_back(x.at(i-1)-x.at(i));
      |             ^
a.cc:22:11: error: 'd' was not declared in this scope
   22 |     }else d.push_back(num);
      |           ^
a.cc:26:28: error: 'd' was not declared in this scope
   26 |         for(int j = 0; j < d.size(); j++){
      |                            ^
a.cc:35:6: error: 'cout' was not declared in this scope
   35 |     }cout << ans << endl;
      |      ^~~~
a.cc:35:6: note: 'std::cout' is defined in header '<iostream>'; this is probably fixable by adding '#include <iostream>'
a.cc:35:21: error: 'endl' was not declared in this scope
   35 |     }cout << ans << endl;
      |                     ^~~~
a.cc:1:1: note: 'std::endl' is defined in header '<ostream>'; this is probably fixable by adding '#include <ostream>'
  +++ |+#include <ostream>
    1 | #incl#include <bits/stdc++.h>
Language: C++

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

int Euclid(int,int);
int main(){
	long nt N,NX;
	long int X[100000];
	long int GCD;
	long int diff;
	cin>>N>>NX;
	cin>>X[0];
	GCD=abs(X[0]-NX);
	for(int i=1;i<N;i++){
		cin>>X[i];
		diff=abs(X[i]-X[i-1]);
		if(diff>GCD){
			if(diff%GCD!=0){
				GCD=Euclid(diff,GCD);
			}
		
		}else{
			if(GCD%diff!=0){
				GCD=Euclid(GCD,diff);
			}
		}
	}
	cout<<GCD<<endl;
	return 0;
}

int Euclid(int a,int b){
	long int r = a % b;
	while(r!=0){
		a = b;
		b = r;
		r = a % b;
  	}
	return b;
}


Compiler output:
a.cc: In function 'int main()':
a.cc:7:17: error: expected initializer before 'N'
    7 |         long nt N,NX;
      |                 ^
a.cc:11:14: error: 'N' was not declared in this scope
   11 |         cin>>N>>NX;
      |              ^
a.cc:11:17: error: 'NX' was not declared in this scope; did you mean 'X'?
   11 |         cin>>N>>NX;
      |                 ^~
      |                 X
Language: Java

import java.util.Arrays;
import java.util.Scanner;

public class contest109c {

	public static void main(String[] args) {
		
		Scanner sc = new Scanner(System.in);
		int N = sc.nextInt();
		int X = sc.nextInt();
		int[] input = new int[N];
		int skip = 0;
		boolean coprime = false;
		boolean allEven = false;
		
		for(int a = 0 ; a < N ; a++){
			input[a] = Math.abs(X-(sc.nextInt()));
		}
		sc.close();
		Arrays.sort(input);
		
		if(N == 1){
			skip = input[0];
		}else{
			for(int a = 1 ; a < N ; a++){
				if(input[a] % input[0] != 0){
					coprime = true;
				}
			}
			if(coprime){
				for(int b = 0 ; b < N ; b++){
					if(input[b] % 2 == 0){
						allEven = true;
					}else{
						break;
					}
				}
				skip = allEven ? 2 : 1;
			}else{
				skip = input[0];
			}
		}
		System.out.println(skip);
	}

Compiler output:
Main.java:44: error: reached end of file while parsing
	}
	 ^
1 error
Language: C++

#include <iostream>
using namespace std;

int main()
{
    int n,x;
    cin >> n >> x;
    int w[n];
    int i;
    for(i = 0;i < n;i++){
        cin >> w[i];
    }
    int a[n];
    for(i = 0;i < n;i++){
        a[i] = w[i] - x;
        if(a[i] < 0){
            a[i] = -a[i];
        }
    }
    int min = a[0];
    for(i = 1;i < n;i++){
        if(min > a[i]){
            min = a[i];
        }
    }
    int max = a[0]
    for(i = 1;i < n;i++){
        if(max < a[i]){
            max = a[i];
        }
    }
    int temp;
    while(1){
        for(i = 0;i < n;i++){
            if(a[i] % min != 0){
                temp = min;
                min = max % min;
                max = temp;
                break;
            }
        }
        if(i == n){
            break;
        }
    }
    
    cout << min << endl;
    return 0;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:27:5: error: expected ',' or ';' before 'for'
   27 |     for(i = 1;i < n;i++){
      |     ^~~
a.cc:27:24: error: expected ';' before ')' token
   27 |     for(i = 1;i < n;i++){
      |                        ^
      |                        ;
Language: C++


#include<iostream>
#include<vector>
#include<set>
#include<algorithm>
#include<valarray>

using ull = unsigned long long;

auto gcd(ull x, ull y) {
	
	std::pair<ull,ull> mm = std::minmax(x, y);

	while (mm.second%mm.first != 0) {
		mm = std::minmax(mm.first, mm.second%mm.first);
	}

	return x > 0 && y > 0 ? mm.first : 1;
}

template<class ... T>
auto gcd( T &&...arg) {
	return gcd(arg);
}
template<class Head,class ...T>
auto gcd(Head&&h1,Head&&h2, Head&&h3) {
	return gcd(gcd(h1, h2), h3);
}

int main() {
	ull N, X;
	std::cin >> N >> X;

	std::set<ull> su;
	for (ull i{}; i < N; i++) {
		ull tmp{}; std::cin >> tmp;
		auto mm = std::minmax(tmp, X);
		su.insert(mm.second - mm.first);
	}

	if (su.size() == 1) {
		std::cout << *su.begin() << "\n";
	}return 0;

	//auto it = su.begin();
	auto r = gcd(*su.begin(), *++su.begin());
	for (auto it = ++++su.begin(); it != su.end(); ++it) {
		r = gcd(r, *it);
	}
	
	std::cout << r << "\n";
	return 0;
}




Compiler output:
a.cc: In function 'auto gcd(T&& ...)':
a.cc:23:19: error: parameter packs not expanded with '...':
   23 |         return gcd(arg);
      |                ~~~^~~~~
a.cc:23:19: note:         'arg'
Language: C++

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

int GCD(int x,int y) {
	int p = max(x,y);
	int q = min(x,y);
	while (p % q != 0) {
		p %= q;
		int temp = q;
		q = p;
		p = temp; 
	}
	return q;
}

int main() {
	int a,b;
	cin >> a >> b;
	int loc[a];
	int dif[a];
	int ans;
	for (int i = 0;i < a;i++) {
		cin >> loc[i];
		if (i == 0) {
			dif[i] = abs(b-loc[i]);
		} else {
			dif[i] = loc[i] - loc[i-1];
		}
	}
	ans = GCD(dif[0],dif[1]);
	for (int i = 2;i < a;i++) {
		ans = GCD(ans,dif[i])
	}
}

Compiler output:
a.cc: In function 'int main()':
a.cc:32:38: error: expected ';' before '}' token
   32 |                 ans = GCD(ans,dif[i])
      |                                      ^
      |                                      ;
   33 |         }
      |         ~
Language: C++

#include <string>
#include <vector>
#include <algorithm>
#include <stack>
#include <cmath>
#define dump(x) cerr<<#x<<"="<<x<<endl 

using namespace std;
 

//ここから書き始める
int main(int argc, char const *argv[])
{
	int N, X;
	stack<int> yakusu;
	stack<int> yakusu_b;

	cin >> N >> X;

	int x[N];

	rep(i,N)
	{
		cin >> x[i];
	}

	rep(i,N)
	{
		x[i] = abs(x[i] - X);
		//dump(x[i]);
	}

	sort(x, x+N);
	int minx;
	rep(i, N)
	{
		if(x[i] != 0) 
		{
			minx = x[i];
			break;
		}

	}
	//dump(minx);

	rep(i, sqrt(minx)+1)
	{
		if(i == 0) continue;
		if(minx%i == 0) 
		{
			yakusu.push(i);
			yakusu_b.push(minx/i);

		}

	}
	int loop = SZ(yakusu_b);
	rep(i, loop)
	{
		yakusu.push(yakusu_b.top());
		yakusu_b.pop();
	}

	int ans = 0;

	while(1)
	{
		int kouho = yakusu.top();
		int flag = 0;
		rep(i, N)
		{
			if(x[i] % kouho != 0)
			{
				break;
			}
			if (i == N - 1) 
			{
				flag = 1;
				ans = kouho;
			}


		}
		if(flag==1)
		{
			break;
		}

	}

	cout << ans << endl;


    return 0;
}


Compiler output:
a.cc: In function 'int main(int, const char**)':
a.cc:18:9: error: 'cin' was not declared in this scope
   18 |         cin >> N >> X;
      |         ^~~
a.cc:6:1: note: 'std::cin' is defined in header '<iostream>'; this is probably fixable by adding '#include <iostream>'
    5 | #include <cmath>
  +++ |+#include <iostream>
    6 | #define dump(x) cerr<<#x<<"="<<x<<endl
a.cc:22:13: error: 'i' was not declared in this scope
   22 |         rep(i,N)
      |             ^
a.cc:22:9: error: 'rep' was not declared in this scope; did you mean 'frexp'?
   22 |         rep(i,N)
      |         ^~~
      |         frexp
a.cc:57:20: error: 'SZ' was not declared in this scope
   57 |         int loop = SZ(yakusu_b);
      |                    ^~
a.cc:91:9: error: 'cout' was not declared in this scope
   91 |         cout << ans << endl;
      |         ^~~~
a.cc:91:9: note: 'std::cout' is defined in header '<iostream>'; this is probably fixable by adding '#include <iostream>'
a.cc:91:24: error: 'endl' was not declared in this scope
   91 |         cout << ans << endl;
      |                        ^~~~
a.cc:6:1: note: 'std::endl' is defined in header '<ostream>'; this is probably fixable by adding '#include <ostream>'
    5 | #include <cmath>
  +++ |+#include <ostream>
    6 | #define dump(x) cerr<<#x<<"="<<x<<endl
Language: C++

nx = []
x = []
sus = []
nx = list(map(int, input().split()))
x = list(map(int, input().split()))
x.append(nx[1])
sorted(x)

for i in range(nx[0]):
    sus.append(x[i + 1] - x[i])
else:
    sorted(sus)


for i in range(len(sus) - 1):
    a = sus[i]
    b = sus[i + 1]
    r = a% b
    x = a * b
    while r != 0:
        a = b
        b = r
        r = a % b
    else:
        sus[i + 1] = b
else:
    print(int(sus[len(sus) - 1]))

Compiler output:
a.cc:1:1: error: 'nx' does not name a type
    1 | nx = []
      | ^~
Language: C++

import math
from functools import reduce

def gcd(*numbers):
    return reduce(math.gcd, numbers)

def gcd_list(numbers):
    return reduce(math.gcd, numbers)
a = list(map(int,input().split()))
n = a[0]
x = a[1]
li = list(map(int,input().split()))
li.append(x)
li = sorted(li)
#print(li)
s = []
for i in range(len(li)-1):
    if li[i+1]-li[i] == 0:
        continue
    s.append(li[i+1]-li[i])
print(gcd_list(s))

    

Compiler output:
a.cc:15:2: error: invalid preprocessing directive #print
   15 | #print(li)
      |  ^~~~~
a.cc:1:1: error: 'import' does not name a type
    1 | import math
      | ^~~~~~
a.cc:1:1: note: C++20 'import' only available with '-fmodules-ts'
Language: C++

#include<bits/stdc++.h>

using namespace std;
#define ll long long

int main(){
    ll n,d;
    cin >> n >> d;
    ll x[n];
    for(ll i=0; i<n; i++){
        cin >> x[i];
    }
    sort(x,x+n);
    vector<ll> v;
    v.push_back(d);
    for(ll i=0; i<n-1; i++){
        v.push_back(x[i+1]-x[i]);
    }
    for(ll i=0; i<v.size(); i++){
        gc=__gcd(gc,v[i]);
    }
    cout << gc;
    return 0;
}


Compiler output:
a.cc: In function 'int main()':
a.cc:20:9: error: 'gc' was not declared in this scope
   20 |         gc=__gcd(gc,v[i]);
      |         ^~
a.cc:22:13: error: 'gc' was not declared in this scope
   22 |     cout << gc;
      |             ^~
Language: Java

import java.sql.SQLOutput;
import java.util.*;

public class Main {

    public static void main(String[] args) {
        Scanner scanner = new Scanner(System.in);

        long N = scanner.nextInt();
        long X = scanner.nextInt();
        long[] pos = new long[N];

        for (int i = 0; i < N; i++) {
            pos[i] = scanner.nextLong();
        }
        if (N == 1) {
            System.out.println(Math.max(N, pos[0]) - Math.min(N, pos[0]));
            return;
        }
        long tmpGcd = gcd(dist(X, pos[0]), dist(X, pos[1]));
        for (int i = 2; i < N; i++) {
            tmpGcd = gcd(tmpGcd, dist(X, pos[i]));
        }
        System.out.println(tmpGcd);
    }

    public static long dist(long X, long pos) {
        if (X > pos) {
            return X - pos;
        }
        return pos - X;
    }

    public static long gcd(long a, long b) {
        if (b == 0) {
            return a;
        }
        return gcd(b, a % b);
    }
}

Compiler output:
Main.java:11: error: incompatible types: possible lossy conversion from long to int
        long[] pos = new long[N];
                              ^
1 error
Language: Java

import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStreamReader;
import java.util.regex.Pattern;
import java.util.stream.Stream;;

public class Main {

  public static void main(String[] args) {
    new Main().run();
  }

  public void run() {
    
    try(BufferedReader br = new BufferedReader(new InputStreamReader(System.in))) {

      String[] lines = br.readLine().split(" ");
      // int  n = Integer.parseInt(lines[0]);
      long z = Long.parseLong(lines[1]);

      final Pattern delim = Pattern.compile(" ");
      long d = delim
        .splitAsStream(br.readLine())
        .mapToLong(Long::parseLong)
        .map(l -> l-z)
        .map(Math::abs)
        .reduce(Skip01::gcd)
        .getAsLong();
      
      System.out.println(d);
    }
    catch(IOException e) {
      System.err.println(e);
    }
  }
  
  public static long gcd(long x, long y) {
    if( x<y ) {
      long tmp = x; x = y; y = tmp;
    }
    if( (x%y) == 0 ) return y;
    else return gcd(y,x%y);
  }
}

Compiler output:
Main.java:27: error: cannot find symbol
        .reduce(Skip01::gcd)
                ^
  symbol:   variable Skip01
  location: class Main
1 error
Language: Java

import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStreamReader;
import java.util.regex.Pattern;
import java.util.stream.Stream;;

public class Main {

  public static void main(String[] args) {
    new Main().run();
  }

  public void run() {
    
    try(BufferedReader br = new BufferedReader(new InputStreamReader(System.in))) {

      String[] lines = br.readLine().split(" ");
      int  n = Integer.parseInt(lines[0]);
      long z = Long.parseLong(lines[1]);

      final Pattern delim = Pattern.compile(" ");
      long d = delim
        .splitAsStream(br.readLine())
        .mapToLong(Long::parseLong)
        .map(l -> Math.abs(l-z))
        .reduce(Main::gcd)
        .getAsLong();
      
      System.out.println(d);
    }
    catch(IOException e) {
      System.err.println(e);
    }
  }
  
  public long gcd(long x, long y) {
    if( x<y ) {
      long tmp = x; x = y; y = tmp;
    }
    if( (x%y) == 0 ) return y;
    else return gcd(y,x%y);
  }
}

Compiler output:
Main.java:26: error: incompatible types: invalid method reference
        .reduce(Main::gcd)
                ^
    unexpected instance method gcd(long,long) found in unbound lookup
Note: Some messages have been simplified; recompile with -Xdiags:verbose to get full output
1 error
Language: Java

import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStreamReader;
import java.util.Comparator;
import java.util.List;
import java.util.regex.Pattern;
import java.util.stream.Stream;;

public class Main {

  public static void main(String[] args) {
    new Main().run();
  }

  public void run() {
    
    try(BufferedReader br = new BufferedReader(new InputStreamReader(System.in))) {

      String[] lines = br.readLine().split(" ");
      int  n = Integer.parseInt(lines[0]);
      long z = Long.parseLong(lines[1]);

      String seq = z + " " + br.readLine();
      n++;

      final Pattern delim = Pattern.compile(" ");
      long[] ax = delim
        .splitAsStream(seq)
        .mapToLong(Long::parseLong)
        .sorted()
        .toArray();
      
      long min = Long.MAX_VALUE;
      // long absL;
      long[] de = new long[n-1];
      long prev;
      for(int i=0; i<n-1; i++) {
        de[i] = Math.abs(ax[i+1] - ax[i]);
        if(de[i] < min)
          min = de[i];
        else if(de[i] == min) {
          if(prev == min)
            min *= 2;
        }
        prev = de[i];
      }

      System.out.println(min);
    }
    catch(IOException e) {
      System.err.println(e);
    }
  }
}

Compiler output:
Main.java:42: error: variable prev might not have been initialized
          if(prev == min)
             ^
1 error
Language: Java

import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStreamReader;
import java.util.Comparator;
import java.util.List;
import java.util.regex.Pattern;
import java.util.stream.Stream;;

public class Main {

  public static void main(String[] args) {
    new Main().run();
  }

  public void run() {
    
    try(BufferedReader br = new BufferedReader(new InputStreamReader(System.in))) {

      String[] lines = br.readLine().split(" ");
      int  n = Integer.parseInt(lines[0]);
      long z = Long.parseLong(lines[1]);

      String seq = z + " " + br.readLine();
      n++;

      final Pattern delim = Pattern.compile(" ");
      long[] ax = delim
        .splitAsStream(seq)
        .mapToLong(Long::parseLong)
        .sorted()
        .toArray();
      
      long min = Long.MAX_VALUE;
      long absL;
      for(int i=n-1; i>0; i--) {
        absL = Math.abs(ax[i] - ax[i-1]);
        if(absL < min)
          min = absL;
      }

      System.out.println(min);
    }
    catch(IOException e) {
      System.err.println(e);
    }
  }
}import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStreamReader;
import java.util.Comparator;
import java.util.List;
import java.util.regex.Pattern;
import java.util.stream.Stream;;

public class Skip {

  public static void main(String[] args) {
    new Skip().run();
  }

  public void run() {
    
    try(BufferedReader br = new BufferedReader(new InputStreamReader(System.in))) {

      String[] lines = br.readLine().split(" ");
      int  n = Integer.parseInt(lines[0]);
      long z = Long.parseLong(lines[1]);

      String seq = z + " " + br.readLine();
      n++;

      final Pattern delim = Pattern.compile(" ");
      long[] ax = delim
        .splitAsStream(seq)
        .mapToLong(Long::parseLong)
        .sorted()
        .toArray();
      
      long min = Long.MAX_VALUE;
      long absL;
      for(int i=n-1; i>0; i--) {
        absL = Math.abs(ax[i] - ax[i-1]);
        if(absL < min)
          min = absL;
      }

      System.out.println(min);
    }
    catch(IOException e) {
      System.err.println(e);
    }
  }
}

Compiler output:
Main.java:47: error: class, interface, enum, or record expected
}import java.io.BufferedReader;
 ^
Main.java:48: error: class, interface, enum, or record expected
import java.io.IOException;
^
Main.java:49: error: class, interface, enum, or record expected
import java.io.InputStreamReader;
^
Main.java:50: error: class, interface, enum, or record expected
import java.util.Comparator;
^
Main.java:51: error: class, interface, enum, or record expected
import java.util.List;
^
Main.java:52: error: class, interface, enum, or record expected
import java.util.regex.Pattern;
^
Main.java:53: error: class, interface, enum, or record expected
import java.util.stream.Stream;;
^
7 errors
Language: C++

#include <string>
#include <iostream>
#include <vector>
#include <complex>
using namespace std;

long long get_gcd(long long a,long long b){
    long long ret = 1;

    long long max_val = max({a,b});
    long long min_val = min({a,b});
    long long mod_val = max_val % min_val;

    while(mod_val!=0){
        max_val = min_val;
        min_val = mod_val;
        mod_val = max_val%min_val;
    }
    ret = min_val;

    return ret;
}

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

    vector<long long> x(N);
    for(int i=0;i<N;i++){
        cin >> abs(x(i)-X);
    }

    for(int i=0;i<N-1;i++){
        x[i+1] = get_gcd(x[i],x[i+1]);
    }

    cout << x[N-1];

    return 0;
}

Compiler output:
a.cc: In function 'long long int get_gcd(long long int, long long int)':
a.cc:10:28: error: no matching function for call to 'max(<brace-enclosed initializer list>)'
   10 |     long long max_val = max({a,b});
      |                         ~~~^~~~~~~
In file included from /usr/include/c++/14/string:51,
                 from a.cc:1:
/usr/include/c++/14/bits/stl_algobase.h:257:5: note: candidate: 'template<class _Tp> constexpr const _Tp& std::max(const _Tp&, const _Tp&)'
  257 |     max(const _Tp& __a, const _Tp& __b)
      |     ^~~
/usr/include/c++/14/bits/stl_algobase.h:257:5: note:   candidate expects 2 arguments, 1 provided
/usr/include/c++/14/bits/stl_algobase.h:303:5: note: candidate: 'template<class _Tp, class _Compare> constexpr const _Tp& std::max(const _Tp&, const _Tp&, _Compare)'
  303 |     max(const _Tp& __a, const _Tp& __b, _Compare __comp)
      |     ^~~
/usr/include/c++/14/bits/stl_algobase.h:303:5: note:   candidate expects 3 arguments, 1 provided
a.cc:11:28: error: no matching function for call to 'min(<brace-enclosed initializer list>)'
   11 |     long long min_val = min({a,b});
      |                         ~~~^~~~~~~
/usr/include/c++/14/bits/stl_algobase.h:233:5: note: candidate: 'template<class _Tp> constexpr const _Tp& std::min(const _Tp&, const _Tp&)'
  233 |     min(const _Tp& __a, const _Tp& __b)
      |     ^~~
/usr/include/c++/14/bits/stl_algobase.h:233:5: note:   candidate expects 2 arguments, 1 provided
/usr/include/c++/14/bits/stl_algobase.h:281:5: note: candidate: 'template<class _Tp, class _Compare> constexpr const _Tp& std::min(const _Tp&, const _Tp&, _Compare)'
  281 |     min(const _Tp& __a, const _Tp& __b, _Compare __comp)
      |     ^~~
/usr/include/c++/14/bits/stl_algobase.h:281:5: note:   candidate expects 3 arguments, 1 provided
a.cc: In function 'int main()':
a.cc:31:21: error: no match for call to '(std::vector<long long int>) (int&)'
   31 |         cin >> abs(x(i)-X);
      |                    ~^~~
Language: C

#include<stdio.h>
#include<math.h>

int gcd(int, int);

int main(void)
{
  int n, x, y, d, i;
  scanf("%d", &n);
  scanf("%d", &x);
  scanf("%d", &y);
  d = abs(y - c);
  for(i = 1; i < n;  i++){
    scanf("%d", &y);
    d = gcd( abs(y - x), d);
  }
  printf("%d\n", d);
  
  return 0;
}

int gcd(int x, int y){
  int a, b, r;
  
  if(x > y){
    a = x;
    b = y;
  }else{
    a = y;
    b = x;
  }
  
  r = a % b;
  while(r != 0){
    a = b;
    b = r;
    r = a % b;
  }
  
  return b;
}

Compiler output:
main.c: In function 'main':
main.c:12:7: error: implicit declaration of function 'abs' [-Wimplicit-function-declaration]
   12 |   d = abs(y - c);
      |       ^~~
main.c:3:1: note: include '<stdlib.h>' or provide a declaration of 'abs'
    2 | #include<math.h>
  +++ |+#include <stdlib.h>
    3 | 
main.c:12:15: error: 'c' undeclared (first use in this function)
   12 |   d = abs(y - c);
      |               ^
main.c:12:15: note: each undeclared identifier is reported only once for each function it appears in
Language: C++

#include <bits/stdc++.h>
using namespace std;
 
int main(){
  int N,X;cin>>N>>X;
  vector<int> v(N);for(int i=0;i<N;i++)cin>>v[i];
  for(int j=0;j<N;j++){if(X<v[j]){v[j]=v[j]-X;}else{v[j]=X-v[j];}}
  if(N==1){cout<<v[0]<<endl;};
  int u=0;
  else{
  for(int j=0;j<N;j++){u=__gcd(u,v[j]);}
  cout<<u<<endl;}}

Compiler output:
a.cc: In function 'int main()':
a.cc:10:3: error: 'else' without a previous 'if'
   10 |   else{
      |   ^~~~
Language: C++

#include <iostream>
#include <numeric>
#include <cmath>

using namespace std;

int main(void){
	int N,X;
  	cin >> N >> X;
  	int d[N],x[N];
  	int i;
  	for(i=0;i<N;i++){
    	cin >> x[i];
      	d[i] = abs(x[i] - X);
    }
  	int tmp=a[0],p;
  	for(i=1;i<N;i++){
    	p = gcd(tmp,a[i]);
      	tmp = p;
    }
  	cout << tmp << endl;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:16:17: error: 'a' was not declared in this scope
   16 |         int tmp=a[0],p;
      |                 ^
a.cc:18:9: error: 'p' was not declared in this scope
   18 |         p = gcd(tmp,a[i]);
      |         ^
Language: C++

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

long long int gcd(long long int a, long long int b) {
  if(a < b) euclidean_gcd(b, a);
  long long int r;
  while ((r=a%b)) {
    a = b;
    b = r;
  }
  return b;
}
int main(){
  long long int n,x;
  cin>>n>>x;
  vector<long long int> a(n);
  for(int i=0;i<n;i++)cin>>a[i];
  long long int ans=abs(a[0]-x);
  for(int i=1;i<n;i++){
    ans=gcd(ans,abs(a[i]-a[i-1]));
  }
  cout<<ans<<endl;
}


Compiler output:
a.cc: In function 'long long int gcd(long long int, long long int)':
a.cc:5:13: error: 'euclidean_gcd' was not declared in this scope
    5 |   if(a < b) euclidean_gcd(b, a);
      |             ^~~~~~~~~~~~~
Language: C++

#include <iostream>
#include <map>
#include <vector>
#include <stack>
#include <set>
#include <cmath>
using namespace std;
// int 2,147,483,647
int main(int argc, char *argv[]) {
	int N;
	long X;
	scanf("%d %d", &N, &X);
	long x[N];
	long min = LONG_MAX;
	for (int i = 0; i < N; i++) {
		scanf("%ld", x+i);
		x[i] = abs(x[i] - X);
		if (x[i] < min) min = x[i];
	}
	bool ok = true;
	for (int j = 0; j < N; j++) {
		if (x[j] % min != 0) {
			ok = false; 
			break;
		}	
	}
	if (ok) {
		printf("%ld", min);
		return 0;
	}
	for (int i = sqrt(min); i > 0; i--) {
		if (x[i] % i != 0) continue;
		bool ok = true;
		for (int j = 0; j < N; j++) {
			if (x[j] % i != 0) {
				ok = false; 
				break;
			}	
		}
		if (ok) {
			printf("%d", i);
			return 0;
		}
	}
	return 0;
}

Compiler output:
a.cc: In function 'int main(int, char**)':
a.cc:14:20: error: 'LONG_MAX' was not declared in this scope
   14 |         long min = LONG_MAX;
      |                    ^~~~~~~~
a.cc:7:1: note: 'LONG_MAX' is defined in header '<climits>'; this is probably fixable by adding '#include <climits>'
    6 | #include <cmath>
  +++ |+#include <climits>
    7 | using namespace std;
Language: Java

import java.util.ArrayList;
import java.util.Scanner;

import org.slf4j.Logger;
import org.slf4j.LoggerFactory;

class Main{

	public static void main(String[] args) {

		Scanner scan = new Scanner(System.in);
		long N = scan.nextInt();
		long X = scan.nextInt();
		ArrayList<Long> data = new ArrayList<Long>();		
		boolean flag = false;
		for(int i=0;i < N;i++){
			long num = scan.nextInt();
			if(num <= X || flag == true){
				data.add(num);
			}else{
				data.add(X);
				flag = true;
				data.add(num);

			}
		}
		
		

		long key = data.get(1)-data.get(0);
		for(int i= 1;i < N-1;i++){
			long num = data.get(i+1)-data.get(i);
			long big = Math.max(num, key);
			long small = Math.min(num, key);

			if(big % small != 0){
				key = 1;
				System.out.println(1);
				return;
			}else if(key > num){
				key = num;
				
			}
		}
		System.out.println(key);

	}
}


Compiler output:
Main.java:4: error: package org.slf4j does not exist
import org.slf4j.Logger;
                ^
Main.java:5: error: package org.slf4j does not exist
import org.slf4j.LoggerFactory;
                ^
2 errors
Language: C++

def gcd(a, b):
	if(a > b):
		a -= b
		return gcd(a, b)
	elif(a < b):
		b -= a
		return gcd(a, b)
	else:
		return a

import numpy as np
n, x = map(int, input().split())
a = np.abs(np.array(list(map(int, input().split())))-x)

if(a.shape[0] == 1):
	r = a[0]
else:
	r = gcd(a[0], a[1])
	for i in range(n-2):
		r = gcd(r, a[i+2])
print(r)

Compiler output:
a.cc:1:1: error: 'def' does not name a type
    1 | def gcd(a, b):
      | ^~~
Language: C++

#include <iostream>
#include <algorithm>
#include <numeric>
#include <limits>
#include <type_traits>

using namespace std;

int main(){
    int n, x;
    int a[100000];
    cin>>n;
    for(int i=1; i<=n;i++){
        cin>>a[i];
    }
    int b[100000]=sort(a,a+n-1);

    int i;
    for(i=1;i<=n;i++){
        if(b[i]>x) break;
    }
    int kb=b[i]-x;
    int ku=x-b[i-1];

    int c[1000000];
    int j;
    for(j=1;j<i-1;j++){
        c[j]=b[j+1]-b[j];
    }
    c[i-1]=kb;
    c[i]=ku;

    for(int j=i+1;j<n;j++){
        c[j]=b[j+1]-b[j];
    }
    int d=1;

    for(int j=1;j<n;j++){
        d=gcd(d, c[i]);
    }
    cout<<d<<endl;




}

Compiler output:
a.cc: In function 'int main()':
a.cc:16:23: error: array must be initialized with a brace-enclosed initializer
   16 |     int b[100000]=sort(a,a+n-1);
      |                   ~~~~^~~~~~~~~
Language: C++

#include <iostream>
#include <vector>
#include <string>
#include <algorithm>

using namespace std;

int N;
int X;
int x[100001];

int main(){
	int min = 1000000001;
	vector<int> min_vec;
	cin >> N >> X;
	for(int i=0;i<N;i++){
		cin >> x[i];
		x[i] = abs(x[i]-X);
		min = x[i]<min ? x[i] : min;
	}
	for(int i=1;i<min/2;i++){
		if(min%i==0) min_vec.push_back(min/i);
	}
	for(int k=0;k<min_vec.size();k++){
		for(int i=0;i<N;i++){
			if(x[i]%min_vec[k] != 0) break;
			if(i==N-1){
				cout << min _vec[k] << endl;
				return 0;
			}
		}
	}
	return 0;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:28:44: error: expected ';' before '_vec'
   28 |                                 cout << min _vec[k] << endl;
      |                                            ^~~~~
      |                                            ;
Language: C++

#include <iostream>
#include <algorithm>
#include <numeric>

using namespace std;

int main(){
    int n, x;
    int a[100000];
    cin>>n;
    for(int i=1; i<=n;i++){
        cin>>a[i];
    }
    int b[100000]=sort(a,a+n-1);

    int i;
    for(i=1;i<=n;i++){
        if(b[i]>x) break;
    }
    int kb=b[i]-x;
    int ku=x-b[i-1];

    int c[1000000];
    int j;
    for(j=1;j<i-1;j++){
        c[j]=b[j+1]-b[j]
    }
    c[i-1]=kb;
    c[i]=ku;

    for(int j=i+1;j<n;j++){
        c[j]=b[j+1]-b[j];
    }
    int d=1;

    for(int j=1;j<n;j++){
        d=gcd(d, c[i]);
    }
    cout<<d<<endl;




}

Compiler output:
a.cc: In function 'int main()':
a.cc:14:23: error: array must be initialized with a brace-enclosed initializer
   14 |     int b[100000]=sort(a,a+n-1);
      |                   ~~~~^~~~~~~~~
a.cc:26:25: error: expected ';' before '}' token
   26 |         c[j]=b[j+1]-b[j]
      |                         ^
      |                         ;
   27 |     }
      |     ~
Language: C++

#include <iostream>
#include <algorithm>
#include <numeric>

using namespace std;

int main(){
    int n, x;
    int a[100000];
    cin>>n;
    for(int i=1; i<=n;i++){
        cin>>a[i];
    }
    int b[100000]=sort(a,a+n-1);

    int i;
    for(i=1;i<=n;i++){
        if(b[i]>x) break;
    }
    int kb=b[i]-x
    int ku=x-b[i-1]

    int c[1000000]
    for(int j=1;j<i-1;j++){
        c[j]=b[j+1]-b[j]
    }
    c[i-1]=kb;
    c[i]=ku;

    for(int j=i+1;j<n;j++){
        c[j]=b[j+1]-b[j];
    }
    int d=1;

    for(int j=1;j<n;j++){
        d=gcd(d, c[i]);
    }
    cout<<d<<endl;




}

Compiler output:
a.cc: In function 'int main()':
a.cc:14:23: error: array must be initialized with a brace-enclosed initializer
   14 |     int b[100000]=sort(a,a+n-1);
      |                   ~~~~^~~~~~~~~
a.cc:21:5: error: expected ',' or ';' before 'int'
   21 |     int ku=x-b[i-1]
      |     ^~~
a.cc:24:17: error: 'j' was not declared in this scope
   24 |     for(int j=1;j<i-1;j++){
      |                 ^
a.cc:27:5: error: 'c' was not declared in this scope
   27 |     c[i-1]=kb;
      |     ^
a.cc:28:10: error: 'ku' was not declared in this scope; did you mean 'kb'?
   28 |     c[i]=ku;
      |          ^~
      |          kb
Language: C++

#include <iostream>
#include <algorithm>

using namespace std;

int main(){
    int n, x;
    int a[100000];
    cin>>n;
    for(int i=1; i<=n;i++){
        cin>>a[i];
    }
    int b[100000]=sort(a,a+n-1);

    int i;
    for(i=1;i<=n;i++){
        if(b[i]>x) break;
    }
    kb=b[i]-x
    ku=x-b[i-1]

    int c[1000000]
    for(int j=1;j<i-1;j++){
        c[j]=b[j+1]-b[j]
    }
    c[i-1]=kb;
    c[i]=ku;

    for(int j=i+1;j<n;j++){
        c[j]=b[j+1]-b[j];
    }
    int d=1;

    for(int j=1;j<n;j++){
        d=gcd(d, c[i]);
    }
    cout<<d<<endl;




}

Compiler output:
a.cc: In function 'int main()':
a.cc:13:23: error: array must be initialized with a brace-enclosed initializer
   13 |     int b[100000]=sort(a,a+n-1);
      |                   ~~~~^~~~~~~~~
a.cc:19:5: error: 'kb' was not declared in this scope; did you mean 'b'?
   19 |     kb=b[i]-x
      |     ^~
      |     b
a.cc:23:17: error: 'j' was not declared in this scope
   23 |     for(int j=1;j<i-1;j++){
      |                 ^
a.cc:26:5: error: 'c' was not declared in this scope
   26 |     c[i-1]=kb;
      |     ^
a.cc:27:10: error: 'ku' was not declared in this scope
   27 |     c[i]=ku;
      |          ^~
a.cc:35:11: error: 'gcd' was not declared in this scope
   35 |         d=gcd(d, c[i]);
      |           ^~~
Language: C++

#include <iostream>

using namespace std;

int main(){
    int n, x;
    int a[100000];
    cin>>n;
    for(int i=1; i<=n;i++){
        cin>>a[i];
    }
    b[100000]=sort(a,a+n-1)

    int i;
    for(i=1;i<=n;i++){
        if(b[i]>x) break;
    }
    kb=b[i]-x
    ku=x-b[i-1]

    int c[1000000]
    for(int j=1;j<i-1;j++){
        c[j]=b[j+1]-b[j]
    }
    c[i-1]=kb
    c[i]=ku

    for(int j=i+1;j<n;j++){
        c[j]=b[j+1]-b[j]
    }
    int d=1;

    for(int j=1;j<n;j++){
        d=gcd(d, c[i])
    }
    cout<<d<<endl;

Compiler output:
a.cc: In function 'int main()':
a.cc:12:5: error: 'b' was not declared in this scope
   12 |     b[100000]=sort(a,a+n-1)
      |     ^
a.cc:12:15: error: 'sort' was not declared in this scope; did you mean 'short'?
   12 |     b[100000]=sort(a,a+n-1)
      |               ^~~~
      |               short
a.cc:15:9: error: 'i' was not declared in this scope
   15 |     for(i=1;i<=n;i++){
      |         ^
a.cc:18:5: error: 'kb' was not declared in this scope
   18 |     kb=b[i]-x
      |     ^~
a.cc:18:10: error: 'i' was not declared in this scope
   18 |     kb=b[i]-x
      |          ^
a.cc:22:17: error: 'j' was not declared in this scope
   22 |     for(int j=1;j<i-1;j++){
      |                 ^
a.cc:25:5: error: 'c' was not declared in this scope
   25 |     c[i-1]=kb
      |     ^
a.cc:34:11: error: 'gcd' was not declared in this scope
   34 |         d=gcd(d, c[i])
      |           ^~~
a.cc:36:19: error: expected '}' at end of input
   36 |     cout<<d<<endl;
      |                   ^
a.cc:5:11: note: to match this '{'
    5 | int main(){
      |           ^
Language: C++

#include <bits/stdc++.h>
using namespace std;
typedef long long int ll;
typedef long double ld;

int main() {
  ll gcd(ll a, ll b);
  cin.tie(0);
  ios::sync_with_stdio(false);
  ll N, X; cin >> N >> X;
  set<ll> S;
  for (ll i = 0; i < N; i++) {
    ll x; cin >> x;
    S.insert(abs(x-X));
  }
  ll ans = *S.begin();
  for (auto it = S.begin(); it != S.end(); ++it)
    ans = gcd(ans, *it);
  cout << ans << endl;
}

ll gcd(ll a, ll b) {
  ll n = min(a,b); ll x = max(a,b);
  if (n == 0
    return x;
  else
    return gcd(n, x%n);
}


Compiler output:
a.cc: In function 'll gcd(ll, ll)':
a.cc:24:13: error: expected ';' before 'return'
   24 |   if (n == 0
      |             ^
      |             ;
   25 |     return x;
      |     ~~~~~~   
a.cc:26:3: error: expected primary-expression before 'else'
   26 |   else
      |   ^~~~
a.cc:25:14: error: expected ')' before 'else'
   25 |     return x;
      |              ^
      |              )
   26 |   else
      |   ~~~~        
a.cc:24:6: note: to match this '('
   24 |   if (n == 0
      |      ^
a.cc:28:1: warning: no return statement in function returning non-void [-Wreturn-type]
   28 | }
      | ^
Language: C++

#include <bits/stdc++.h>
using namespace std;
typedef long long int ll;
typedef long double ld;

int main() {
  ll gcd(ll a, ll b);
  cin.tie(0);
  ios::sync_with_stdio(false);
  ll N, X; cin >> N >> X;
  set<ll> S;
  for (ll i = 0; i < N; i++) {
    ll x; cin >> x;
    S.insert(abs(x-X));
  }
  ll ans = *S.begin();
  for (auto it = S.begin(); it != S.end(); ++it)
    ans = gcd(ans, *it);
  cout << ans << endl;
}

ll gcd(ll a, ll b) {
  ll n = min(a,b); ll x = max(a,b);
  n == 0 ? return x : return gcd(n, x%n);
}


Compiler output:
a.cc: In function 'll gcd(ll, ll)':
a.cc:24:12: error: expected primary-expression before 'return'
   24 |   n == 0 ? return x : return gcd(n, x%n);
      |            ^~~~~~
a.cc:24:11: error: expected ':' before 'return'
   24 |   n == 0 ? return x : return gcd(n, x%n);
      |           ^~~~~~~
      |           :
a.cc:24:12: error: expected primary-expression before 'return'
   24 |   n == 0 ? return x : return gcd(n, x%n);
      |            ^~~~~~
a.cc:25:1: warning: no return statement in function returning non-void [-Wreturn-type]
   25 | }
      | ^
Language: C


#include <math.h>
#include <stdlib.h>
#include <string.h>
#include <stdio.h>
int long gcd(int long a,int long b){
    int tmp;
    if(a<b){tmp=b;
    b=a;
    a=tmp;}
    if(b<1){return -1;}
    if(a%b==0){return b;}else
    return gcd(b,a%b);
        
     
}

int main()
{
    int a=0,b,n,k;
    int  i;
    int s,x[10001],y,max=0,ans;
    
    scanf("%d %d",&n,&s);
    for(i=0;i<n;i++){
        scanf("%d",&x[i]);
    }
    ans=abs(x[0]-s);
    for(i=0;i<n;i++){
        ans=gcd(abs(x[i]-s),ans);
    }
    printf("%d",ans);
    }return 0;
    
}




Compiler output:
main.c:33:6: error: expected identifier or '(' before 'return'
   33 |     }return 0;
      |      ^~~~~~
main.c:35:1: error: expected identifier or '(' before '}' token
   35 | }
      | ^
Language: C++

//要するに最大公約数を求めようとしたがアルゴリズムがゴミだから一つのデータセットでタイムアウトする
#include<stdio.h>
#include<string.h>
#include<iostream>
#include<algorithm>
#include<queue>
#include<tuple>
#include<limits>//ex numeric_limits<int>::max()
#include<unordered_set>
#include<math.h>
#include"gcd.h"
#define lli long long int

using namespace std;


int main(void){
    int result=0;
    int N,X;
    cin >> N;
    cin >> X;
    int first;
    int second;
    cin >> first;
    first=abs(X-first);
    for (int i = 0; i < N-1; ++i)
    {
        cin >> second;
        first=gcd(abs(first),abs(X-second));
    }
    cout << first << endl;
}


Compiler output:
a.cc:11:9: fatal error: gcd.h: No such file or directory
   11 | #include"gcd.h"
      |         ^~~~~~~
compilation terminated.
Language: Java

import java.util.Scanner;
public class Main{
	public static void main(String[] args){
		Scanner sc = new Scanner(System.in);
		int N = sc.nextInt();
		int S = sc.nextInt();
		int b = 0;
		int c = 0;
		for(int i = 0; i < N; i++){
			int a = sc.nextInt();
			if(a<S){
				b = S-a;
			}else{
				b = a-S;
			}
			if(i == 0){
				c = b;
			}else{
				c = gcd(c,b);
			}
		}
			System.out.println(c);
	}
}

Compiler output:
Main.java:19: error: cannot find symbol
				c = gcd(c,b);
				    ^
  symbol:   method gcd(int,int)
  location: class Main
1 error
Language: C++

#include<iostream>
#include<string>
#include<cmath>
using namespace std;

int gcd(int a, int b) {
  int r;
  r = b%a;
  while (r != 0) {
    b = a;
    a = r;
    r = b%a;

  }
  return a;
}

int main() {
  int N, X;
  int A[100000];
  int tmp;

  cin >> N >> X;

  for (int i = 0; i < N; i++) cin >> A[i];
  for (int i = 0; i < N; i++) A[i] = abs(A[i] - X);

  sort(A, A+N);
  tmp = A[0];

  for (int i = 0; i < N - 1; i++) {
    tmp = gcd(tmp, A[i + 1]);
  }

  cout << tmp << endl;
  return 0;
}


Compiler output:
a.cc: In function 'int main()':
a.cc:28:3: error: 'sort' was not declared in this scope; did you mean 'sqrt'?
   28 |   sort(A, A+N);
      |   ^~~~
      |   sqrt
Language: C++

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

//解説、回答参考

//二数の最大公約数を求める関数（ユーグリッド互除法）
int GCD(int x,int y){
	if(x<y) swap(x,y); //xとyを交換する。
	if(x%y==0) return y;
	return GCD(y,x%y);
}

int main(){
	int n,x;
	cin>>n>>x;
	
	int x[100000];
	for(int i=0;i<n;i++) cin>>x[i];
	
	int ans=abs(x[0]-x);
	
	for(int i=1;i<n;i++){
		ans=GCD(ans,abs(x[i]-x));
	}
	
	
	cout<<ans<<endl;
	
	return 0;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:18:13: error: conflicting declaration 'int x [100000]'
   18 |         int x[100000];
      |             ^
a.cc:15:15: note: previous declaration as 'int x'
   15 |         int n,x;
      |               ^
a.cc:19:36: error: invalid types 'int[int]' for array subscript
   19 |         for(int i=0;i<n;i++) cin>>x[i];
      |                                    ^
a.cc:21:22: error: invalid types 'int[int]' for array subscript
   21 |         int ans=abs(x[0]-x);
      |                      ^
a.cc:24:34: error: invalid types 'int[int]' for array subscript
   24 |                 ans=GCD(ans,abs(x[i]-x));
      |                                  ^