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

#include <iostream>
#include <iomanip>
#include <vector>
#include <numeric>
#include <functional>
#include <cmath>
#include <string>
#include <algorithm>

using namespace std;

int main(int argc, const char * argv[]) {
    
    int n, x;
    cin >> n >> x;
    
    vector<long long> v(n+1);
    v[0] = x;
    for (int i = 1; i < n+1; i++)
    {
        cin >> v[i];
    }

    sort(v.begin(), v.end());
    long long c = abs(v[1]-v[0]);
    for (int i = 2; i < n+1; i++) {
        c = __algo_gcd(c, v[i]-v[i-1]);
    }

    cout << c << endl;
    
    return 0;
}

Compiler output:
a.cc: In function 'int main(int, const char**)':
a.cc:27:13: error: '__algo_gcd' was not declared in this scope
   27 |         c = __algo_gcd(c, v[i]-v[i-1]);
      |             ^~~~~~~~~~
Language: C++

\#include<bits/stdc++.h>
using namespace std;
typedef long long ll;
#define rep(i,n) for(int i = 0; i < n; i++)
ll gcd(ll a,ll b){
    if(b == 0){
        return a;
    }else{
        return gcd(b,a%b);
    }
}
int main(){
    int N; cin >> N;
    ll X; cin >> X;
    vector<ll> x(N);
    vector<ll> d(N);
    rep(i,N){
        cin >> x[i];
        d[i] = abs(x[i]-X);
    }
    ll ans = d[0];
    for(int i = 1; i < N; i++){
        ans = gcd(d[i],ans);
    }
    cout << ans << endl;
}

Compiler output:
a.cc:1:1: error: stray '\' in program
    1 | \#include<bits/stdc++.h>
      | ^
a.cc:1:2: error: stray '#' in program
    1 | \#include<bits/stdc++.h>
      |  ^
a.cc:1:3: error: 'include' does not name a type
    1 | \#include<bits/stdc++.h>
      |   ^~~~~~~
a.cc: In function 'int main()':
a.cc:13:12: error: 'cin' was not declared in this scope
   13 |     int N; cin >> N;
      |            ^~~
a.cc:15:5: error: 'vector' was not declared in this scope
   15 |     vector<ll> x(N);
      |     ^~~~~~
a.cc:15:14: error: expected primary-expression before '>' token
   15 |     vector<ll> x(N);
      |              ^
a.cc:15:16: error: 'x' was not declared in this scope
   15 |     vector<ll> x(N);
      |                ^
a.cc:16:14: error: expected primary-expression before '>' token
   16 |     vector<ll> d(N);
      |              ^
a.cc:16:16: error: 'd' was not declared in this scope
   16 |     vector<ll> d(N);
      |                ^
a.cc:19:16: error: 'abs' was not declared in this scope
   19 |         d[i] = abs(x[i]-X);
      |                ^~~
a.cc:25:5: error: 'cout' was not declared in this scope
   25 |     cout << ans << endl;
      |     ^~~~
a.cc:25:20: error: 'endl' was not declared in this scope
   25 |     cout << ans << endl;
      |                    ^~~~
Language: C++

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

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


int main(){
	int n,x;
	cin >> n >> x;
	int city[n];
	for(int i=0;i<n;i++){
		cin >> city[i];
	}
	int dis[n];
	for(int i = 0;i < n;i++){
		dis[i] = abs(city[i]-x);
	}
	int G = gcd(dis[0],dis[1]);
	for(int i=2;i<n;i++){
		G = gcd(G,dis[i]);
	}
	cout << G;
	return 0;
}


Compiler output:
a.cc:2:9: fatal error: stdlib: No such file or directory
    2 | #include<stdlib>
      |         ^~~~~~~~
compilation terminated.
Language: C++

#include <iostream>
#include <vector>
#include <cmath>

using namespace std;

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

int main(){
  int N;
  long long int X;
  
  cin >> N >> X;
  vector<long long int> c(N);
  for(int i = 0; i < N; i++) cin >> c[i];
  vector<long long int> d(N);
  for(int i = 0; i < N; i++) d[i] = abs(c[i] - X);
  
  long long int ans = 0LL;
  for(int i = 0; i < N; i++){
    if(N == 1){
      ans = d[o];
      break;
    }
    if(i == 0){
    ans = gcd(d[0],d[1]);
    continue;
    }
    ans = gcd(d[i], ans);
  }
  cout << ans;
}


Compiler output:
a.cc: In function 'int main()':
a.cc:29:15: error: 'o' was not declared in this scope
   29 |       ans = d[o];
      |               ^
Language: C++

#include <iostream>
#include <cstring>
#include <map>
#include <iomanip>
#include <algorithm>
#include <cmath>
#include <set>
#include <vector>
#include <queue>
#include <list>
#include <numeric>

using namespace std;
typedef long long ll;

int gcd(int x, int y) {
  if (x < y) swap(x, y);
  while (y > 0) {
    int r = x % y;
    x = y;
    y = r;
  }
  return x;
}

/*迷路
const int INF = 50;

typedef pair<int,int> P;
char field[52][52];
int d[51][51];
int r,c;
int sx,sy;
int gx,gy;

int dx[4]={1,0,-1,0};
int dy[4]={0,1,0,-1};

int bfs(){
    queue<P> que;
    for(int i=0;i<r;i++){
        for(int j=0;j<c;j++){
            d[i+1][j+1] = INF;
        }
    }
    que.push(P(sy,sx));
    d[sy][sx]=0;
while(que.size()){
    P p=que.front();
    que.pop();
    if(p.second==gx&&p.first==gy) break;
    for(int i=0;i<4;i++){
        int nx=p.second+dx[i];
        int ny=p.first+dy[i];

        if(1<=nx&&nx<=c&&1<=ny&&ny<=r&&field[ny][nx]!='#'&&d[ny][nx]==INF){
            que.push(P(ny,nx));
            d[ny][nx] = d[p.first][p.second] + 1;
        }
    }
}
return d[gy][gx];
}
*/

int main(){
  int n; cin>>n;
  ll xx; cin>>xx;
  ll x[n+1];
  x[0] = xx;
  for(int i = 0; i<n; i++) cin>>x[i+1];
  sort(x,x+n+1);
  ll d[n];
  for(int i = 0; i<n; i++){
    d[i] = x[i+1] - x[i];
  }
  ll z;
  for(int i = 0; i<n-1; i++){
    z = gcd(d[i],d[i+1])
  }

  return 0;
}


Compiler output:
a.cc: In function 'int main()':
a.cc:79:25: error: expected ';' before '}' token
   79 |     z = gcd(d[i],d[i+1])
      |                         ^
      |                         ;
   80 |   }
      |   ~
Language: C++

#include <cstdio>
#include <iostream>
#include <string>
#include <vector>

using namespace std;

int euclidean_gcd(int a, int b) {
  if (a < b) euclidean_gcd(b, a);
  int r;
  while ((r = a % b)) {
    a = b;
    b = r;
  }
  return b;
}

int main() {
  int n, x;
  vector<int> vx;
  cin >> n >> x;

  if (n == 1) {
    int xx;
    cin >> xx;
    cout << (int)abs(x - xx) << endl;
  } else {
    for (int i = 0; i < n; i++) {
      int tmp;
      cin >> tmp;
      vx.push_back(tmp);
    }
    sort(vx.begin(), vx.end());
    int ans = vx[1] - vx[0];
    for (int i = 1; i < n - 1; i++) {
      int diff = vx[i + 1] - vx[i];
      ans = euclidean_gcd(ans, diff);
    }
    int xdif = (int)abs(vx[0] - x);
    int ans_tmp = max( euclidean_gcd(xdif, ans), ans_tmp);
    for (int i = 1; i < n; i++) {
      xdif = (int)abs(vx[i] - x);
      ans_tmp = max( euclidean_gcd(xdif, ans), ans_tmp);
    }
    cout << ans_tmp << endl;
  }
}

Compiler output:
a.cc: In function 'int main()':
a.cc:33:5: error: 'sort' was not declared in this scope; did you mean 'short'?
   33 |     sort(vx.begin(), vx.end());
      |     ^~~~
      |     short
Language: C++

#define ipair pair<int,int>
#define rep(I,N) for(int I=0; I<N; I++)
#define repj(i,j,n) for(int i=j;i<n;i++)

#define PB(a,i) (a).push_back(i)
#define ALL(a) (a).begin(),(a).end()

#define OK(i) cout<<"OK "<<i<<endl
#define Yes cout<<"Yes"<<endl
#define YES cout<<"YES"<<endl
#define No cout<<"No"<<endl
#define NO cout<<"NO"<<endl

using namespace std;

typedef long long int lli;
typedef long long ll;
typedef vector<int> vi;
typedef vector< vector<int> > Matrix;

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

  r = a % b;
  while(r!=0){
    a = b;
    b = r;
    r = a % b;
  }

  return b;
}

int main ()
{
  int N, X;
  cin >> N >> X;
  int *x = new int[N];
  rep(i, N) {
    cin >> x[i];
    x[i] = abs(X-x[i]);
  }

  int small_gcd = x[0];
  rep(i, N) {
    small_gcd = gcd(small_gcd, x[i]);
  }

  printf("%d\n", small_gcd);
}



Compiler output:
a.cc:18:9: error: 'vector' does not name a type
   18 | typedef vector<int> vi;
      |         ^~~~~~
a.cc:19:9: error: 'vector' does not name a type
   19 | typedef vector< vector<int> > Matrix;
      |         ^~~~~~
a.cc: In function 'int main()':
a.cc:43:3: error: 'cin' was not declared in this scope
   43 |   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 | #define ipair pair<int,int>
a.cc:47:12: error: 'abs' was not declared in this scope
   47 |     x[i] = abs(X-x[i]);
      |            ^~~
a.cc:55:3: error: 'printf' was not declared in this scope
   55 |   printf("%d\n", small_gcd);
      |   ^~~~~~
a.cc:1:1: note: 'printf' is defined in header '<cstdio>'; this is probably fixable by adding '#include <cstdio>'
  +++ |+#include <cstdio>
    1 | #define ipair pair<int,int>
Language: C++

#include <iostream>
#include <algorithm>
#include <vector>
#include <string>
#include <queue>
#include <map>
#include <set> 
#include <bitset>
#include <cmath>
using namespace std;
typedef long long ll;
#define REP(i,n) for(int i=0;i<n;i++)

int main () {
    
    int n, s;
    cin >> n >> s;
    vector<int> x(n);
    REP(i,n) {cin >> x[i];}
    REP(i,n) {
        x[i] = abs(x[i] - s);
    }

    sort(x.begin(), x.end(), greater<int>();
    while (true) {
        int ok = -1;
        int ng = n;
        while (abs(ng - ok) > 1) {
            int m = (ng + ok) / 2;
            if (x[m] > 0) {
                ok = m;
            } else {
                ng = m;
            }
        }
        if(ng == 1) {
            break;
        } else {
            for (int i = 0; i < ok; i++) {
                x[i] = x[i] % x[ok];
            }
        }
        sort(x.begin(), x.end(), greater<int>();
    }
    cout << x[0] << endl;

    return 0;
}


Compiler output:
a.cc: In function 'int main()':
a.cc:24:44: error: expected ')' before ';' token
   24 |     sort(x.begin(), x.end(), greater<int>();
      |         ~                                  ^
      |                                            )
a.cc:43:48: error: expected ')' before ';' token
   43 |         sort(x.begin(), x.end(), greater<int>();
      |             ~                                  ^
      |                                                )
Language: C++

#include <iostream>
#include <algorithm>
#include <vector>
#include <string>
#include <queue>
#include <map>
#include <set> 
#include <bitset>
#include <cmath>
using namespace std;
typedef long long ll;
#define REP(i,n) for(int i=0;i<n;i++)

int main () {
    
    int n, s;
    cin >> n >> s;
    vector<int> x(n);
    REP(i,n) {cin >> x[i];}
    REP(i,n) {
        x[i] = abs(x[i] - s);
    }

    sort(x.begin(), x.end(), greater<int>();
    while (true) {
        int ok = -1;
        int ng = n;
        while (abs(ng - ok) > 1) {
            int m = (ng + ok) / 2;
            if (x[m] > 0) {
                ok = m;
            } else {
                ng = m;
            }
        }
        if(ng == 1) {
            break;
        } else {
            for (int i = 0; i < ok; i++) {
                x[i] = x[i] % x[ok];
            }
        }
        sort(x.begin(), x.end(), greater<int>();
    },
    cout << x[0] << endl;

    return 0;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:24:44: error: expected ')' before ';' token
   24 |     sort(x.begin(), x.end(), greater<int>();
      |         ~                                  ^
      |                                            )
a.cc:43:48: error: expected ')' before ';' token
   43 |         sort(x.begin(), x.end(), greater<int>();
      |             ~                                  ^
      |                                                )
a.cc:44:6: error: expected primary-expression before ',' token
   44 |     },
      |      ^
Language: C++



#include "pch.h"
#include <iostream>
#include <vector>
#include <stack>
#include <queue>
#include <string>
#include <algorithm>
#include <math.h>
using namespace std;

#define lint long long
#define MAX 100000
int gcd(lint a, lint b) {
	if (min(a, b) == 0) return max(a, b);
	if (min(a, b) == 1)return 1;
	if (a > b) return gcd(b, a%b);
	if (b > a) return gcd(a, b%a);
}
int main() {
	
	lint N, X; cin >> N >> X;
	vector<lint> dist(N);
	for (lint i = 0; i < N; i++)
	{
		lint x;
		cin >> x;
		dist[i] = abs(x - X);

	}
	lint D = dist[0];
	for (lint i = 0; i < N-1; i++)
	{
		D = gcd(D, dist[i+1]);
	}
	cout << D << endl;
	return 0;
}

Compiler output:
a.cc:3:10: fatal error: pch.h: No such file or directory
    3 | #include "pch.h"
      |          ^~~~~~~
compilation terminated.
Language: C++

import math
def determine_D(x,X):
    min = float('inf')
    cand = []
    for i in range(len(x)):
        cand.append(abs(x[i] - X))
    cand.sort()
    while True:
        for i in cand:
            if i % cand[0] == 0:
                return cand[0]
            else:
                cand[0] = math.gcd(cand[0], i)



def main():
    i = 1
    N, X = map(int, input().split())
    *x, = map(int, input().split())
    print(determine_D(x,X))
main()


Compiler output:
a.cc:3:17: warning: multi-character character constant [-Wmultichar]
    3 |     min = float('inf')
      |                 ^~~~~
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;

bool judge(int a,int b,int c)
{
if((a-b)%c==0){
  return true;
}
else{
  return false;
}
}

int main() {
int N,X;
cin>>N,X;
int x[N];

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

int cnt = 0;

for(int d = 1;d<10^9/N;d++){
  for(int n = 0;n<N;n++){
    if(judge(x[n],X,d)) cnt++
  }
  if(cnt<N){
    break;
    cout<<d;
  }
  else{
    cnt = 0;
  }
}

}

Compiler output:
a.cc: In function 'int main()':
a.cc:27:30: error: expected ';' before '}' token
   27 |     if(judge(x[n],X,d)) cnt++
      |                              ^
      |                              ;
   28 |   }
      |   ~
Language: C++

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

int main() {
int N,M;
cin>>N,M;
int x[N];

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

bool judge(int a,int b,int c);
           
bool judge(int a,int b,int c)
{
if((a-b)%c==0){
  return true;
}
else{
  return false;
}
}

int cnt = 0;

for(int d = 1;d<10^9/N;d++){
  for(int n = 0;n<N;n++){
    if(judge(x[n],X,d)) cnt++
  }
  if(cnt<N){
    break;
  }
  else{
    cnt = 0;
  }
}

cout<<d;

}

Compiler output:
a.cc: In function 'int main()':
a.cc:16:1: error: a function-definition is not allowed here before '{' token
   16 | {
      | ^
a.cc:29:19: error: 'X' was not declared in this scope
   29 |     if(judge(x[n],X,d)) cnt++
      |                   ^
a.cc:29:30: error: expected ';' before '}' token
   29 |     if(judge(x[n],X,d)) cnt++
      |                              ^
      |                              ;
   30 |   }
      |   ~                           
a.cc:39:7: error: 'd' was not declared in this scope
   39 | cout<<d;
      |       ^
Language: C++

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

int main() {
int N,M;
cin>>N,M;
int x[N];

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

bool judge(int a,int b,int c)
{
if((a-b)%c==0){
  return true;
}
else{
  return false;
}
}

int cnt = 0;

for(int d = 1;d<10^9/N;d++){
  for(int n = 0;n<N;n++){
    if(judge(x[n],X,d)) cnt++
  }
  if(cnt<N){
    break;
  }
  else{
    cnt = 0;
  }
}

cout<<d;

}

Compiler output:
a.cc: In function 'int main()':
a.cc:14:1: error: a function-definition is not allowed here before '{' token
   14 | {
      | ^
a.cc:27:19: error: 'X' was not declared in this scope
   27 |     if(judge(x[n],X,d)) cnt++
      |                   ^
a.cc:27:8: error: 'judge' was not declared in this scope
   27 |     if(judge(x[n],X,d)) cnt++
      |        ^~~~~
a.cc:27:30: error: expected ';' before '}' token
   27 |     if(judge(x[n],X,d)) cnt++
      |                              ^
      |                              ;
   28 |   }
      |   ~                           
a.cc:37:7: error: 'd' was not declared in this scope
   37 | cout<<d;
      |       ^
Language: C++

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

int main() {
int N,M;
cin>>N,M;
int x[N];

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

bool judge(int a,int b,int c) {
if((a-b)%c==0){
  return true;
}
else{
  return false;
}
}

int cnt = 0;

for(int d = 1;d<10^9/N;d++){
  for(int n = 0;n<N;n++){
    if(judge(x[n],X,d)) cnt++
  }
  if(cnt<N){
    break;
  }
  else{
    cnt = 0;
  }
}

cout<<d;

}

Compiler output:
a.cc: In function 'int main()':
a.cc:13:31: error: a function-definition is not allowed here before '{' token
   13 | bool judge(int a,int b,int c) {
      |                               ^
a.cc:26:19: error: 'X' was not declared in this scope
   26 |     if(judge(x[n],X,d)) cnt++
      |                   ^
a.cc:26:8: error: 'judge' was not declared in this scope
   26 |     if(judge(x[n],X,d)) cnt++
      |        ^~~~~
a.cc:26:30: error: expected ';' before '}' token
   26 |     if(judge(x[n],X,d)) cnt++
      |                              ^
      |                              ;
   27 |   }
      |   ~                           
a.cc:36:7: error: 'd' was not declared in this scope
   36 | cout<<d;
      |       ^
Language: C++

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

int main() {
int N,M;
cin>>N,M;
int x[N];

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

bool judge(int a,int b,int c){
if((a-b)%c==0){
  return true;
}
else{
  return false;
}

int cnt = 0;

for(int d = 1;d<10^9/N;d++){
  for(int n = 0;n<N;n++){
    if(judge(x[n],X,d)) cnt++
  }
  if(cnt<N){
    break;
  }
  else{
    cnt = 0;
  }
}

cout<<d;

}

Compiler output:
a.cc: In function 'int main()':
a.cc:13:30: error: a function-definition is not allowed here before '{' token
   13 | bool judge(int a,int b,int c){
      |                              ^
a.cc:37:2: error: expected '}' at end of input
   37 | }
      |  ^
a.cc:4:12: note: to match this '{'
    4 | int main() {
      |            ^
Language: C++

#include"bits/stdc++.h"

using namespace std;

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

	int N, X;
	cin >> N >> X;

	
	int ans = 0;

	for (int i = 0; i < N; i++) {
		int x;
		cin >> x;
		ans = __gcd(ans, abs(X - x[i]));
	}

	cout << ans << endl;

	return 0;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:18:43: error: invalid types 'int[int]' for array subscript
   18 |                 ans = __gcd(ans, abs(X - x[i]));
      |                                           ^
Language: C++

#include <bits/stdc++.h>
#define REP(i,n) for(ll i = 0; i < (ll)n; i++)
#define INF 1000000000000000
using namespace std;
typedef long long ll;
typedef double db;
typedef string str;
typedef pair<ll,ll> p;


ll gcd(ll a,ll b){
    if(a<b) gcd(b,a);//a>bとなる
    ll r;
    while((r=a%b)){
        a = b;
        b = r;
    }
    return b;
}

int main(){
    ll N,X;cin>>N>>X;
    vector<ll>x(N);
    REP(i,N) cin>>x[i];
    vector<ll>sub(N);
    REP(i,N) sub[i] = x[i] - X;
    ll ans;
    if (N==1) {
        cout<<abs(sub[0]);
        return 0;
    }
    ans = gcd(sub[0],sub[1]);
    REP(i,N) ans = gcd(ans,sub[i]);
    cout<<abs(ans)<<endl;
    return;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:35:5: error: return-statement with no value, in function returning 'int' [-fpermissive]
   35 |     return;
      |     ^~~~~~
Language: C++

#include<iostream>
#include<cmath>
#include<numeric>
#include<string>
#include<algorithm>
#include<vector>
#define rep(i,n) for(int i=0;i<n;i++)
#define rep1(i,n) for(int i=1;i<n;i++)
#define int64 long long 
using namespace std;

int gcd(int a,int b){
  if(a<b){
    int tmp=a;
    a=b;
    b=tmp;
  }
  r=a%b;
  while(r!=0){
    a=b;
    b=r;
    r=a%b;
  }
  return b;
}

int main(){
  int64 n,start;
  cin>>n>>start;
  int64 x[n],dis[n];
  rep(i,n){
    cin>>x[i];
    dis[i]=abs(x[i]-start);
  }
  int64 ans=dis[0];
  rep1(i,n){
    ans=gcd(ans,dis[i]);
  }
  cout<<ans<<endl;
}

Compiler output:
a.cc: In function 'int gcd(int, int)':
a.cc:18:3: error: 'r' was not declared in this scope
   18 |   r=a%b;
      |   ^
Language: C++

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

int main() {
  long int n,x;
  cin>>n>>x;
  vector<long int> a(n+1);
  for(int i=0;i<n;i++) cin>>a.at(i);
  a.at(n)=x;
  
  sort(a.begin(),a.end());
  x=a.at(0);
  for(int i=0;i<n;i++){
    x=__lcm(x,(a.at(i+1)-a.at(i));
  }
  cout<<x<<endl;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:14:34: error: expected ')' before ';' token
   14 |     x=__lcm(x,(a.at(i+1)-a.at(i));
      |            ~                     ^
      |                                  )
Language: C++

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

vector<long int> a;
vector<long int> b;
vector<long int> c;

int divs(int x,int y){
  if(x<y){
    swap(x,y);
  }
  int r=x%y;
  while(r!=0){
    x=y;
    y=r;
    r=x%y;
  }
  return y;
}

int main(){
  long int n,x,i;
  cin >> n >> x;
  if(n==1){
    long int c;
    cin >> c;
    cout <<  c-x << endl;
    return 0;
  }
  a=vector<long int>(n+1);
  b=vector<long int>(n);
  c=vector<long int>(n-1);
  a.at(0)=x;
  for(i=1;i<n+1;i++){
    cin >> a.at(i);
  }
  sort(a.begin(),a.end());
  for(i=0;i<n;i++){
    b.at(i)=a.at(i+1)-a.at(i);
  }
  c.at(0)=divs(b.at(0),b.at(1));
  for(i=1;i<n-1;i++){
    c.at(i)=divs(b.at(i+1),c.at(i-1));
  }
  cout << c.at(n-2) << endl;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:39:3: error: 'sort' was not declared in this scope; did you mean 'short'?
   39 |   sort(a.begin(),a.end());
      |   ^~~~
      |   short
Language: C++

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

long gcd(long x,long y){
	if (x < y) swap(x,y);
	if (x % y == 0) {
		return y;
	}
	else gcd(y, x % y);
	return;
}

int main() {
	long n,x;
	cin>>n>>x;
	vector <long> c(n);
	for (long i=0;i<n;i++) cin >> c[i];
	vector<long> d(n);
	for (long i=0;i<n;i++) {
		d[i] = abs(x-c[i]);
	}
	long ans;
	for (long i=0;i<n-1;i++) {
		ans = gcd(d[i],d[i+1]);
	}

	cout << ans << endl;

}


Compiler output:
a.cc: In function 'long int gcd(long int, long int)':
a.cc:11:9: error: return-statement with no value, in function returning 'long int' [-fpermissive]
   11 |         return;
      |         ^~~~~~
Language: Java

import java.util.List;
import java.util.Scanner;
import java.util.stream.Collectors;
import java.util.stream.IntStream;

public class Main{
    public static String process(TestCase testCase) {
        final int N = testCase.N;
        final int X = testCase.X;
        final List<Integer> x = testCase.x;

        final int num = x.stream()
                .map(xi -> Math.abs(X - xi))
                .reduce(Skip::gcd)
                .orElseThrow(() -> new IllegalArgumentException("x is empty"));
        return String.valueOf(num);
    }

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

    // Util func

    public static void main(String[] args) {
        TestCase testCase = readFromInput();

        final String result = process(testCase);

        output(result);
    }

    private static TestCase readFromInput() {
        Scanner sc = new Scanner(System.in);

        int N = sc.nextInt();
        int X = sc.nextInt();
        final List<Integer> x = IntStream.range(0, N).mapToObj(i -> sc.nextInt()).collect(Collectors.toList());

        return new TestCase(N, X, x);
    }

    private static void output(String result) {
        System.out.println(result);
    }

    public static class TestCase {
        final int N;
        final int X;
        final List<Integer> x;

        public TestCase(int N, int X, List<Integer> x) {
            this.N = N;
            this.X = X;
            this.x = x;
        }
    }
}


Compiler output:
Main.java:14: error: cannot find symbol
                .reduce(Skip::gcd)
                        ^
  symbol:   variable Skip
  location: class Main
1 error
Language: Java

import java.util.List;
import java.util.Scanner;
import java.util.stream.Collectors;
import java.util.stream.IntStream;

public class Main {
    public static String process(TestCase testCase) {
        final int N = testCase.N;
        final int X = testCase.X;
        final List<Integer> x = testCase.x;

        final int num = x.stream()
                .map(xi -> Math.abs(X - xi))
                .reduce(Skip::gcd)
                .orElseThrow(() -> new IllegalArgumentException("x is empty"));
        return String.valueOf(num);
    }

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

    // Util func

    public static void main(String[] args) {
        TestCase testCase = readFromInput();

        final String result = process(testCase);

        output(result);
    }

    private static TestCase readFromInput() {
        Scanner sc = new Scanner(System.in);

        int N = sc.nextInt();
        int X = sc.nextInt();
        final List<Integer> x = IntStream.range(0, N).mapToObj(i -> sc.nextInt()).collect(Collectors.toList());

        return new TestCase(N, X, x);
    }

    private static void output(String result) {
        System.out.println(result);
    }

    public static class TestCase {
        final int N;
        final int X;
        final List<Integer> x;

        public TestCase(int N, int X, List<Integer> x) {
            this.N = N;
            this.X = X;
            this.x = x;
        }
    }
}


Compiler output:
Main.java:14: error: cannot find symbol
                .reduce(Skip::gcd)
                        ^
  symbol:   variable Skip
  location: class Main
1 error
Language: C++

#include <iostream>
#include <vector>

using namespace std;

int gcd(int a, int b) {
    if (a < b) swap(a, b);

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

int main() {
    int N, X; cin >> N >> X;
    vector<int> x(N); for (int i = 0; i < N; i++) cin >> x[i];

    for (int i = 0; i < N; i++) {
        x[i] = abs(x[i] - X);
    }

    if (N >= 2) {
        int ans = gcd(x[0], x[1]);
        if (N >= 3) {
            for (int i = 2; i < N; i++) {
                ans = gcd(ans, x[i]);
            }
        }
    }

    cout << ans << endl;
    return 0;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:30:13: error: 'ans' was not declared in this scope; did you mean 'abs'?
   30 |     cout << ans << endl;
      |             ^~~
      |             abs
Language: C++

#include <bits/stdc++.h>
#define ALL(v) v.begin(), v.end()
#define rep(i, n) for(int i = 0; i < (int)(n); i++)
using namespace std;
typedef long long ll;

int main() {
int n;cin>>n;
  vector<string> siri;
  rep(i, n) cin>>siri.at(i);
  
  bool ok=true;
  
  for(int i=0;i<n-1;i++){
    if((siri.at(i)).end()==(siri.at(i+1)).begin()){ok=false;
                                                 break;}
  }
  
  if(ok){sort(All(siri));
              for(int i=0;i<n-1;i++){
    if(siri.at(i)==siri.at(i+1)){ok=false;
                                break;}
              }
              }
     if(ok) cout<<"Yes"<<endl;
    else cout<<"No"<<endl;
              
}


Compiler output:
a.cc: In function 'int main()':
a.cc:19:15: error: 'All' was not declared in this scope; did you mean 'll'?
   19 |   if(ok){sort(All(siri));
      |               ^~~
      |               ll
Language: C++

#include <bits/stdc++.h>
#define ALL(v) v.begin(), v.end()
#define rep(i, n) for(int i = 0; i < (int)(n); i++)
using namespace std;
typedef long long ll;

int main() {
 int n,x; cin>>n>>x;
  int p[n]={0};
  rep(i, n)cin>>p[i];
  
  int gcdb=1000000001;
  rep(i, n){if(i==0)gcdb=abs(x-p[i]);
            gcdb=gcd(gcdb,abs(x-p[i]);
                     }
  cout<<gcdb<<endl;
}


Compiler output:
a.cc: In function 'int main()':
a.cc:14:38: error: expected ')' before ';' token
   14 |             gcdb=gcd(gcdb,abs(x-p[i]);
      |                     ~                ^
      |                                      )
Language: C++

#include <bits/stdc++.h>
#define ALL(v) v.begin(), v.end()
#define rep(i, n) for(int i = 0; i < (int)(n); i++)
using namespace std;
typedef long long ll;

int main() {
 int n,x; cin>>n>>x;
  int p[n]={0};
  rep(i, n)cin>>p[i];
  
  int gcdb==1000000001;
  rep(i, n){if(i==0)gcdb=abs(x-p[i]);
            gcdb=gcd(gcdb,abs(x-p[i]);
                     }
  cout<<gcdb<<endl;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:12:11: error: expected initializer before '==' token
   12 |   int gcdb==1000000001;
      |           ^~
a.cc:13:21: error: 'gcdb' was not declared in this scope
   13 |   rep(i, n){if(i==0)gcdb=abs(x-p[i]);
      |                     ^~~~
a.cc:14:13: error: 'gcdb' was not declared in this scope
   14 |             gcdb=gcd(gcdb,abs(x-p[i]);
      |             ^~~~
a.cc:14:38: error: expected ')' before ';' token
   14 |             gcdb=gcd(gcdb,abs(x-p[i]);
      |                     ~                ^
      |                                      )
a.cc:16:9: error: 'gcdb' was not declared in this scope
   16 |   cout<<gcdb<<endl;
      |         ^~~~
Language: C++

#include"stdafx.h"
#include <iostream>
#include <cstdio>
#include <cstdlib>
#include <algorithm>
#include <vector>
#include <cstring>
#include <queue>
#include <functional>
#include <set>
#include <map>
#include <string>
#include <cmath>
#include <cassert>
 
#define rep(i, n) for (int i = 0; i < n; i++)
#define repd(i, n) for (int i = n; i > 0; i--)
 
using namespace std;
typedef long long int ll;
typedef pair <int, int> P;
 
ll gcd(int x,int y){
	if(x==1||x==y){
		return y;
	}
	if(y==1){
		return x;
	}
	if(x>y){
		return gcd(x-y,y);
	}
	else{
		return gcd(y,x);
	}
}

int main(){
	ll n,x;
	cin>>n>>x;
	vector<ll> city(n);
	rep(i,n){
		cin>>city[i];
	}
	ll ans=abs(x-city[0]);
	rep(i,n-1){
		ans=gcd(ans,abs(x-city[i]));
	}
	cout<<ans<<endl;
	return 0;
}

Compiler output:
a.cc:1:9: fatal error: stdafx.h: No such file or directory
    1 | #include"stdafx.h"
      |         ^~~~~~~~~~
compilation terminated.
Language: C

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

int main() {
  long long int n,X;
  cin>>n>>X;
  long long int x[n+1],i;
  for(i=0;i<n;i++)
    cin>>x[i];
  x[n]=X;
  sort(x,x+n+1);
  
  long long int ans=1000000001;
  
  for(i=0;i<n;i++){
    if(ans>x[i+1]-x[i])
      ans=x[i+1]-x[i];
  }
  cout<<ans;
       
    
}

Compiler output:
main.c:1:10: fatal error: bits/stdc++.h: No such file or directory
    1 | #include <bits/stdc++.h>
      |          ^~~~~~~~~~~~~~~
compilation terminated.
Language: C++

#include <bits/stdc++.h>

using namespace std;

int gcd(int x, int y){
  while(x!=0 && y!=0){
    if(y<x){
      int p=0;
      p=y;
      y=x;
      x=p;}
    
    y=y-x*(y/x);}
  
  return x;}
    
    
    


int main() {

  
    int n,x;
  cin>>n>>x;
  int s[n];
   int sa[n-1];

  for(int i=0;i<n;i++) cin>>s[i];
  if(n==1){ cout<<abs(s[0]-x)<<endl;}
 else{
  sort(s,s+n);
  for (int i=0;i<n-1;i++){
    sa[i]=s[i+1]-s[i];}
  for(int i=0;i<n-1;i++){
    sa[i+1]=gcd(sa[i], sa[i+1]);
  }
  }
    
  int kotae;
kotae=gcd(x-s[0],sa[n-2]);

  
  cout <<kotae<<endl;

  
}    
}


Compiler output:
a.cc:48:1: error: expected declaration before '}' token
   48 | }
      | ^
Language: C++

#include <bits/stdc++.h>

using namespace std;

int gcd(int x, int y){
  while(x!=0 && y!=0){
    if(y<x){
      int p=0;
      p=y;
      y=x;
      x=p;}
    
    y=y-x*(y/x);}
  
  return x;}
    
    
    


int main() {

  
    int n,x;
  cin>>n>>x;
  int s[n];
 
  for(int i=0;i<n;i++) cin>>s[i];
  if(n==1){ cout<<abs(s[0]-x)<<endl;}
 else{
   int sa[n-1];
  sort(s,s+n);
  for (int i=0;i<n-1;i++){
    sa[i]=s[i+1]-s[i];}
  for(int i=0;i<n-1;i++){
    sa[i+1]=gcd(sa[i], sa[i+1]);
  }
  }
    
  int kotae;
kotae=gcd(x-s[0],sa[n-2]);

  
  cout <<kotae<<endl;

  
}    
}


Compiler output:
a.cc: In function 'int main()':
a.cc:41:18: error: 'sa' was not declared in this scope; did you mean 's'?
   41 | kotae=gcd(x-s[0],sa[n-2]);
      |                  ^~
      |                  s
a.cc: At global scope:
a.cc:48:1: error: expected declaration before '}' token
   48 | }
      | ^
Language: C++

#include <bits/stdc++.h>

using namespace std;

int gcd(int x, int y){
  while(x!=0 && y!=0){
    if(y<x){
      int p=0;
      p=y;
      y=x;
      x=p;}
    
    y=y-x*(y/x);}
  
  return x;}
    
    
    


int main() {

  
    int n,x;
  cin>>n>>x;
  int s[n];
 
  for(int i=0;i<n;i++) cin>>s[i];
  if(n==1){ cout<<abs(s[0]-x)<<endl;}
 else{
   int sa[n-1];
  sort(s,s+n);
  for (int i=0;i<n-1;i++){
    sa[i]=s[i+1]-s[i];}
  for(int i=0;i<n-1;i++){
    sa[i+1]=gcd(sa[i], sa[i+1]);
  }
  }
    
  int kotae;
kotae=gcd(x-s[0],sa[n-2]);

  
  cout <<abs(x-s[0])<<endl;

  
}    
}


Compiler output:
a.cc: In function 'int main()':
a.cc:41:18: error: 'sa' was not declared in this scope; did you mean 's'?
   41 | kotae=gcd(x-s[0],sa[n-2]);
      |                  ^~
      |                  s
a.cc: At global scope:
a.cc:48:1: error: expected declaration before '}' token
   48 | }
      | ^
Language: C++

#include <bits/stdc++.h>

using namespace std;

int gcd(int x, int y){
  while(x!=0 && y!=0){
    if(y<x){
      int p=0;
      p=y;
      y=x;
      x=p;}
    
    y=y-x*(y/x);}
  }
  return x;}
    
    
    


int main() {

  
    int n,x;
  cin>>n>>x;
  int s[n];
  int sa[n-1];
  for(int i=0;i<n;i++) cin>>s[i];
  sort(s,s+n);
  for (int i=0;i<n-1;i++){
    sa[i]=s[i+1]-s[i];}
  for(int i=0;i<n-1;i++){
    sa[i+1]=gcd(sa[i], sa[i+1]);}
    
  int kotae;
kotae=gcd(x-s[0],sa[n-2]);

   if(n>=2){ cout<<kotae<<endl;}
  else{cout <<abs(x-s[0])<<endl;}

  
    
}


Compiler output:
a.cc: In function 'int gcd(int, int)':
a.cc:14:3: warning: no return statement in function returning non-void [-Wreturn-type]
   14 |   }
      |   ^
a.cc: At global scope:
a.cc:15:3: error: expected unqualified-id before 'return'
   15 |   return x;}
      |   ^~~~~~
a.cc:15:12: error: expected declaration before '}' token
   15 |   return x;}
      |            ^
Language: C++

import java.util.*;
class Main {
	public static void main(String args[]) {
		Scanner s = new Scanner(System.in);
	    int n = s.nextInt();
      	int x = s.nextInt();
      	int result = 0;
      	for(int i = 0;i < x; i++) {
        	int ele = s.nextInt();
          	ele = abs(x-ele);
          	if(i != 0) {
            	result = gcd(result,ele);
            } else {
            	result = ele;
            }
        }
      	System.out.println(result);
    }
  	int gcd(int a, int b) {
    	if(b == 0)
          return a;
      	return gcd(b%a,a);
    }
  	int abs(int a) {
    	return a < 0 ? -a : a;
    }
}

Compiler output:
a.cc:1:1: error: 'import' does not name a type
    1 | import java.util.*;
      | ^~~~~~
a.cc:1:1: note: C++20 'import' only available with '-fmodules-ts'
a.cc:3:15: error: expected ':' before 'static'
    3 |         public static void main(String args[]) {
      |               ^~~~~~~
      |               :
a.cc:3:33: error: 'String' has not been declared
    3 |         public static void main(String args[]) {
      |                                 ^~~~~~
a.cc:27:2: error: expected ';' after class definition
   27 | }
      |  ^
      |  ;
a.cc: In static member function 'static void Main::main(int*)':
a.cc:4:17: error: 'Scanner' was not declared in this scope
    4 |                 Scanner s = new Scanner(System.in);
      |                 ^~~~~~~
a.cc:5:21: error: 's' was not declared in this scope
    5 |             int n = s.nextInt();
      |                     ^
a.cc:10:26: error: cannot call member function 'int Main::abs(int)' without object
   10 |                 ele = abs(x-ele);
      |                       ~~~^~~~~~~
a.cc:12:29: error: cannot call member function 'int Main::gcd(int, int)' without object
   12 |                 result = gcd(result,ele);
      |                          ~~~^~~~~~~~~~~~
a.cc:17:9: error: 'System' was not declared in this scope
   17 |         System.out.println(result);
      |         ^~~~~~
Language: C++

#include "pch.h"
#include <iostream>
#include <algorithm>
//#include <tuple>
#include <cmath>
#include <string>
#include <vector>

#define rep(i,n) for(int i=0;i<n;i++)
#define ll long long
#define pb push_back
using namespace std;

int n,rn,fx;
int x[100005];
int ans=1;


int main() {
	cin >> n >>fx;
	rn = n;

	rep(i, n) {
		int y;
		cin >> y;
		if(y-fx!=0)	x[i] = abs(y - fx);
		else rn--;
	}
	sort(x, x + rn);

	
	rep(i, x[0]-1) {
		bool flag = 1;
		rep(j, rn) {
			if (x[j] % (x[0] - i) != 0) {
				flag = 0;
			}
		
		}
		
		if (flag) {
			cout << x[0]-i << "\n";
			return 0;
		}

	}
	

	return 0;
}


Compiler output:
a.cc:1:10: fatal error: pch.h: No such file or directory
    1 | #include "pch.h"
      |          ^~~~~~~
compilation terminated.
Language: C++

#include <vector>
#include <iostream>

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

	std::vector<int> val(N + 1);

	for (int i = 0; i < N; i++) {
		std::cin >> val[i];
	}
	val[N] = X;
	std::sort(val.begin(), val.end());

	std::vector<int> dif(N);
	for (int i = 0; i < N; i++) {
		dif[i] = val[i + 1] - val[i];
	}
	std::sort(dif.begin(), dif.end());

	std::cout << dif[0];

	return 0;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:14:14: error: 'sort' is not a member of 'std'; did you mean 'qsort'?
   14 |         std::sort(val.begin(), val.end());
      |              ^~~~
      |              qsort
a.cc:20:14: error: 'sort' is not a member of 'std'; did you mean 'qsort'?
   20 |         std::sort(dif.begin(), dif.end());
      |              ^~~~
      |              qsort
Language: C++

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

int gcd(int n,int m){
  if(n<m){
    swap(n,m);
  }
  if(n%m==0){
    return m;
  }
  else {
    gcd(n,m)=gcd(n%m,m);
  }
}

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


Compiler output:
a.cc: In function 'int gcd(int, int)':
a.cc:13:8: error: lvalue required as left operand of assignment
   13 |     gcd(n,m)=gcd(n%m,m);
      |     ~~~^~~~~
a.cc:15:1: warning: control reaches end of non-void function [-Wreturn-type]
   15 | }
      | ^
Language: C++

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

int gcd(int n,int m){
  if(n<m){
    swap(n,m);
  }
  if(n%m==0){
    return m;
  }
  else if{
    gcd(n,m)=gcd(n%m,m);
  }
}

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


Compiler output:
a.cc: In function 'int gcd(int, int)':
a.cc:12:10: error: expected '(' before '{' token
   12 |   else if{
      |          ^
      |          (
a.cc:15:1: warning: control reaches end of non-void function [-Wreturn-type]
   15 | }
      | ^
Language: C++

#include <iostream>
#include <cmath>
#include <limits>
#include <numeric>
#include <type_traits>
using namespace std;
template <class M, class N> constexpr common_type_t<M, N> gcd(M m, N n);
}

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

Compiler output:
a.cc:8:1: error: expected declaration before '}' token
    8 | }
      | ^
a.cc: In function 'int main()':
a.cc:22:12: error: call of overloaded 'gcd(int&, int&)' is ambiguous
   22 |     ans=gcd(ans,a[i]);
      |         ~~~^~~~~~~~~~
a.cc:7:59: note: candidate: 'constexpr std::common_type_t<_Mn, _Nn> gcd(M, N) [with M = int; N = int; std::common_type_t<_Mn, _Nn> = int]'
    7 | template <class M, class N> constexpr common_type_t<M, N> gcd(M m, N n);
      |                                                           ^~~
In file included from a.cc:4:
/usr/include/c++/14/numeric:173:5: note: candidate: 'constexpr std::common_type_t<_Mn, _Nn> std::gcd(_Mn, _Nn) [with _Mn = int; _Nn = int; common_type_t<_Mn, _Nn> = int]'
  173 |     gcd(_Mn __m, _Nn __n) noexcept
      |     ^~~
Language: C++

#include <iostream>
#include <cmath>
#include <limits>
#include <numeric>
#include <type_traits>
using namespace std;

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

Compiler output:
a.cc: In function 'int main()':
a.cc:15:5: error: 'i' was not declared in this scope
   15 |   a[i]=abs(a[i]-x);
      |     ^
Language: C++

#include <bits/stdc++.h> 
 
#define INF (1<<31) - 1 //INT_MAX/2
#define MOD 1000000007
#define PI  acos(-1)

using ll  = long long;
using ull = unsigned long long;
using P = std::pair<int, int>;

int Euc(int a, int b) {
    if (a <= 0 || b <= 0) {
        return -1;
    }
    if (a > b) {
        if (a % b == 0) {
            return b;
        } else {
            Euc(b, a % b);
        }
    } else if (a < b) {
        if (b % a == 0) {
            return a;
        } else {
            Euc(a, b % a);
        }
    } else {
        return a;
    }
}

int main(int argc, char *argv[])
{
    int N, X;
    std::cin >> N >> X;

    std::vector<int> x(N);
    for (int i = 0; i < N; i++) {
        std::cin >> x[i];
    }
    x.push_back(X);

    std::sort(x.begin(), x.end());

    int ans = 0;
    if (N == 1) {
        ans = std::abs(x[1] - x[0]);
    } else {
        ans = Euc(std::abs(x[2] - x[1]), x[1] - x[0]);
        for (int i = 2; i < N; i++) {
            ans = Euc(X[i+1] - x[i], ans);
        }
    }

    std::cout << ans << std::endl;
    return 0;
}

Compiler output:
a.cc: In function 'int main(int, char**)':
a.cc:51:24: error: invalid types 'int[int]' for array subscript
   51 |             ans = Euc(X[i+1] - x[i], ans);
      |                        ^
a.cc: In function 'int Euc(int, int)':
a.cc:30:1: warning: control reaches end of non-void function [-Wreturn-type]
   30 | }
      | ^
Language: C++

#include <bits/stdc++.h>
#define rep(i, n) for (int i = 0; i < n; i++)
#define ll long long
#define endl '\n'
using namespace std;


int main()
{
    cin.tie(0);
    ios::sync_with_stdio(false);
    int n, x[100000];
    cin >> n;
    for (int i = 0; i <= n; i++) {
        cin >> x[i];
    }
    sort(x, x + n);
    ll ans = __gcd(x[1] - x[0], x[0]);
    for (int i = 1; i < n; i++) {
        ans = __gcd(x[i + 1] - x[i], ans);
    }
    cout << ans << endl;
    return 0;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:20:20: error: no matching function for call to '__gcd(int, long long int&)'
   20 |         ans = __gcd(x[i + 1] - x[i], ans);
      |               ~~~~~^~~~~~~~~~~~~~~~~~~~~~
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:20:20: note:   deduced conflicting types for parameter '_EuclideanRingElement' ('int' and 'long long int')
   20 |         ans = __gcd(x[i + 1] - x[i], ans);
      |               ~~~~~^~~~~~~~~~~~~~~~~~~~~~
Language: C

#include<stdio.h>
#include<stdlib.h>


int euclid(int a, int b){
  if(a < b){
    int tmp = a;
    a = b;
    b = tmp;
  }
  int r = a % b;
  if(r < 0){
    r += b;
  }
  while(r != 0){
    a = b;
    b = r;
    r = a % b;
    if(r < 0){
      r += b;
    }
  }
  return b;
}

int main(){
  int N,X,d;
  scanf("%d %d",&N,&X);
  int x[N];
  for(int i=0;i<N;i++) scanf("%d",&x[i]);
  int d= abs(x[0]-X);
  for(int i=1;i<N;i++){
    d=euclid(d,abs(x[i]-X));
  }
  printf("%d\n",d );
  }


Compiler output:
main.c: In function 'main':
main.c:31:7: error: redeclaration of 'd' with no linkage
   31 |   int d= abs(x[0]-X);
      |       ^
main.c:27:11: note: previous declaration of 'd' with type 'int'
   27 |   int N,X,d;
      |           ^
Language: C++

#include<iostream>
using namespace std;
int main() {
    int n, x;
    cin >> n >> x;
    const int N = 100000;
    int xx[N];
    xx[0] = x;
    for (int i = 1; i <= n; ++i) {
        cin >> xx[i];
    }
    sort(xx, xx + n + 1);
    int Min = 999999999;
    for (int i = 0; i < n; ++i) {
        if (Min > xx[i + 1] - xx[i]) {
            Min = xx[i + 1] - xx[i];
        }
    }
    cout << Min << endl;
    return 0;
}




Compiler output:
a.cc: In function 'int main()':
a.cc:12:5: error: 'sort' was not declared in this scope; did you mean 'short'?
   12 |     sort(xx, xx + n + 1);
      |     ^~~~
      |     short
Language: C++

#include<iostream>
using namespace std;
int main() {
    int n, x;
    cin >> n >> x;
    const int N = 100000;
    int xx[N];
    xx[0] = x;
    for (int i = 1; i <= n; ++i) {
        cin >> xx[i];
    }
    sort(xx, xx + n + 1);
    int Min = 11111111;
    for (int i = 0; i < n; ++i) {
        if (Min > xx[i + 1] - xx[i]) {
            Min = xx[i + 1] - xx[i];
        }
    }
    cout << Min << endl;
    return 0;
}


Compiler output:
a.cc: In function 'int main()':
a.cc:12:5: error: 'sort' was not declared in this scope; did you mean 'short'?
   12 |     sort(xx, xx + n + 1);
      |     ^~~~
      |     short
Language: C

#include <stdio.h>
#include <stdlib.h>

int main(){	
  	int i,j,n,x,y[n],z[n],a_n;
  	scanf("%d%d", &n,&x);
  	for(i=0;i<n;i++){
		scanf("%d", &y[i]);
      	z[i]=abs(y[i]-x);
    }
 	int min=z[0],count=0;
  for(i=1;i<n;i++){
    if(min>z[i]){
		min=z[i];
    }
  }
 
  for(i=min;i>=1;i-=1){
    for(j=0;j<n;j++){
		if(z[j]%i==0){
     	 count++;
        }
    }
	if(count==n){
      	int ans =i;
		break;
    }
    count=0;
  }

  
  printf("%d",ans);
}
  
  	
  	
  	
  
  	


Compiler output:
main.c: In function 'main':
main.c:32:15: error: 'ans' undeclared (first use in this function); did you mean 'abs'?
   32 |   printf("%d",ans);
      |               ^~~
      |               abs
main.c:32:15: note: each undeclared identifier is reported only once for each function it appears in
Language: C

#include <stdio.h>
#include <stdlib.h>
int gcd(int a,int b){
	if(a<b){
  	  int tmp = a;
  	  a = b;
   	 b = tmp;
  	}

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

int main(){	
  	int i,n,x,y[n],z[n],a_n;
  	scanf("%d%d", &n,&x);
  	for(i=0;i<n;i++){
		scanf("%d", &y[i]);
      	z[i]=abs(y[i]-x);
    }
  if(n==0){
  	return z[0];
  }else{
	a_n=gcd(a_(n-1),z[n]);
  }

  printf("%d", &a_n);
}
  
  	
  	
  	
  
  	


Compiler output:
main.c: In function 'main':
main.c:30:17: error: implicit declaration of function 'a_' [-Wimplicit-function-declaration]
   30 |         a_n=gcd(a_(n-1),z[n]);
      |                 ^~
Language: C

#include <stdio.h>

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

  int r = a % b;
  	while(r!=0){
   	 a = b;
    	b = r;
    	r = a % b;
  	}
  return b;
}
  
int main(){	
  	int i,n,x,y[n],z[n],a[i];
  	scanf("%d%d", &n,&x);
  	for(i=0;i<n;i++){
		scanf("&d", &y[i]);
      	z[i]=y[i]-x;
    }
  if(i==0){
  	return z[0];
  }else{
	a[i]=gcd(a[i-1],z[i]);
  }

  printf("%d", &a[n]);
}
  
  	
  	
  	
  
  	


Compiler output:
main.c: In function 'gcd':
main.c:5:11: error: 'tmp' undeclared (first use in this function)
    5 |           tmp = a;
      |           ^~~
main.c:5:11: note: each undeclared identifier is reported only once for each function it appears in
Language: C++

#include <iostream>
#include <vector>
#include <cmath>

#define Yes cout << "Yes" << endl
#define No cout << "No" << endl

#define REP(i,n) for(int i=0;i<n;i++)
#define pb push_back

using namespace std;

int main(void) {
	// cin, coutの結びつきを解除し、速くする
	cin.tie(0);
   	ios::sync_with_stdio(false);

	int N; cin >> N;
	int X; cin >> X;
	vector<int> vs;
	while (N--) {
		int x; cin >> x;
		vs.pb(x);
	}

	REP(i, vs.size()) {
		vs.at(i) = abs(vs.at(i) - X);
	}

//	for (auto v : vs) {
//		cout << v << endl;
//	}

	sort(vs.begin(), vs.end());

	// 複数の数の最大公約数を求める
	REP(i, vs.size()) {
		REP(j, vs.size()) {
			if (vs.at(j) % vs.at(i) != 0) {
				cout << vs.at(i-1) << endl; return 0;
			}
		}
	}
	cout << vs.back() << endl;
}


Compiler output:
a.cc: In function 'int main()':
a.cc:34:9: error: 'sort' was not declared in this scope; did you mean 'sqrt'?
   34 |         sort(vs.begin(), vs.end());
      |         ^~~~
      |         sqrt