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

#inlcude<stdio.h>
int main()
{
	char s[13],s1[13];
	scanf("%4s%8s",s,s1);
	printf("%s %s\n",s,s1);
return 0;
}

Compiler output:
main.c:1:2: error: invalid preprocessing directive #inlcude; did you mean #include?
    1 | #inlcude<stdio.h>
      |  ^~~~~~~
      |  include
main.c: In function 'main':
main.c:5:9: error: implicit declaration of function 'scanf' [-Wimplicit-function-declaration]
    5 |         scanf("%4s%8s",s,s1);
      |         ^~~~~
main.c:1:1: note: include '<stdio.h>' or provide a declaration of 'scanf'
  +++ |+#include <stdio.h>
    1 | #inlcude<stdio.h>
main.c:5:9: warning: incompatible implicit declaration of built-in function 'scanf' [-Wbuiltin-declaration-mismatch]
    5 |         scanf("%4s%8s",s,s1);
      |         ^~~~~
main.c:5:9: note: include '<stdio.h>' or provide a declaration of 'scanf'
main.c:6:9: error: implicit declaration of function 'printf' [-Wimplicit-function-declaration]
    6 |         printf("%s %s\n",s,s1);
      |         ^~~~~~
main.c:6:9: note: include '<stdio.h>' or provide a declaration of 'printf'
main.c:6:9: warning: incompatible implicit declaration of built-in function 'printf' [-Wbuiltin-declaration-mismatch]
main.c:6:9: note: include '<stdio.h>' or provide a declaration of 'printf'
Language: C

#inlcude<stdio.h>
int main()
{
	char s[13],s1[13];
	scanf("%4s%8s",s,s1);
	printf("%s %s",s,s1);
}

Compiler output:
main.c:1:2: error: invalid preprocessing directive #inlcude; did you mean #include?
    1 | #inlcude<stdio.h>
      |  ^~~~~~~
      |  include
main.c: In function 'main':
main.c:5:9: error: implicit declaration of function 'scanf' [-Wimplicit-function-declaration]
    5 |         scanf("%4s%8s",s,s1);
      |         ^~~~~
main.c:1:1: note: include '<stdio.h>' or provide a declaration of 'scanf'
  +++ |+#include <stdio.h>
    1 | #inlcude<stdio.h>
main.c:5:9: warning: incompatible implicit declaration of built-in function 'scanf' [-Wbuiltin-declaration-mismatch]
    5 |         scanf("%4s%8s",s,s1);
      |         ^~~~~
main.c:5:9: note: include '<stdio.h>' or provide a declaration of 'scanf'
main.c:6:9: error: implicit declaration of function 'printf' [-Wimplicit-function-declaration]
    6 |         printf("%s %s",s,s1);
      |         ^~~~~~
main.c:6:9: note: include '<stdio.h>' or provide a declaration of 'printf'
main.c:6:9: warning: incompatible implicit declaration of built-in function 'printf' [-Wbuiltin-declaration-mismatch]
main.c:6:9: note: include '<stdio.h>' or provide a declaration of 'printf'
Language: C++

#inlcude<stdio.h>
int main()
{
	char s[13],s1[13];
	scanf("%4s%8s",s,s1);
	printf("%s %s",s,s1);
}

Compiler output:
a.cc:1:2: error: invalid preprocessing directive #inlcude; did you mean #include?
    1 | #inlcude<stdio.h>
      |  ^~~~~~~
      |  include
a.cc: In function 'int main()':
a.cc:5:9: error: 'scanf' was not declared in this scope
    5 |         scanf("%4s%8s",s,s1);
      |         ^~~~~
a.cc:6:9: error: 'printf' was not declared in this scope
    6 |         printf("%s %s",s,s1);
      |         ^~~~~~
a.cc:1:1: note: 'printf' is defined in header '<cstdio>'; this is probably fixable by adding '#include <cstdio>'
  +++ |+#include <cstdio>
    1 | #inlcude<stdio.h>
Language: C++

#include<iostream>
#define rep(i,a,b) for(int i=a;i<b;i++)
using namespace std;

int main() {
	char s[13];
	cin >> s;
	int count = 0;
	rep(i, 0, 13) {
		if(i!=4) cout << s[count++];
		else cout << " ";
	}
	cout << endl;
	
	return;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:15:9: error: return-statement with no value, in function returning 'int' [-fpermissive]
   15 |         return;
      |         ^~~~~~
Language: C++

#include<iostream>
#define rep(i,a,b) for(int i=a;i<b;i++)
using namespace std

int main() {
	char s[13];
	cin >> s;
	int count = 0;
	rep(i, 0, 13) {
		if(i!=4) cout << s[count++];
		else cout << " ";
	}
	cout << endl;
	
	return;
}

Compiler output:
a.cc:3:20: error: expected ';' before 'int'
    3 | using namespace std
      |                    ^
      |                    ;
    4 | 
    5 | int main() {
      | ~~~                 
a.cc: In function 'int main()':
a.cc:15:9: error: return-statement with no value, in function returning 'int' [-fpermissive]
   15 |         return;
      |         ^~~~~~
Language: C++

#include<iostream>
#define rep(i,a,b) for(i=a;i<b;i++)
using namespace std

int main() {
	char s[13];
	cin >> s;
	int count = 0;
	rep(i, 0, 13) {
		if(i!=4) cout << s[count++];
		else cout << " ";
	}
	cout << endl;
	
	return;
}

Compiler output:
a.cc:3:20: error: expected ';' before 'int'
    3 | using namespace std
      |                    ^
      |                    ;
    4 | 
    5 | int main() {
      | ~~~                 
a.cc: In function 'int main()':
a.cc:9:13: error: 'i' was not declared in this scope
    9 |         rep(i, 0, 13) {
      |             ^
a.cc:2:24: note: in definition of macro 'rep'
    2 | #define rep(i,a,b) for(i=a;i<b;i++)
      |                        ^
a.cc:15:9: error: return-statement with no value, in function returning 'int' [-fpermissive]
   15 |         return;
      |         ^~~~~~
Language: C

//# include <stdio.h>
//# include <iostream>
# include <cstdio>
//# include <conio.h>

//using namespace std;

int main ()
{
   char s [20];
   
//   cin >> s;
   int x = scanf ("%s", s);
   
   for ( int i=0; i < 4; i++ )
//      cout << s [i];
      printf ("%c", s [i]);

//   cout << " ";
   printf (" ");
   
   for ( int i=4; i < 12; i++ )
//      cout << s [i];
      printf ("%c", s [i]);

//getch();
   return 0;
}


Compiler output:
main.c:3:11: fatal error: cstdio: No such file or directory
    3 | # include <cstdio>
      |           ^~~~~~~~
compilation terminated.
Language: C++

# include <iostream>

using namespace std;

int Main ()
{
   char s [20];
   
   cin >> s;
   
   for ( int i=0; i < 4; i++ )
      cout << s [i];

   cout << " ";
   
   for ( int i=4; i < 12; i++ )
      cout << s [i];

   return 0;
}


Compiler output:
/usr/bin/ld: /usr/lib/gcc/x86_64-linux-gnu/14/../../../x86_64-linux-gnu/Scrt1.o: in function `_start':
(.text+0x17): undefined reference to `main'
collect2: error: ld returned 1 exit status
Language: C++

#include <stdio.h>
#include <string.h>
int main()
{
    char a[12];
    gets(a);
    for(int i=0;i<4;i++) printf("%c",a[i]);
    printf(" ");
    for(int i=4;i<12;i++) printf("%c",a[i]);
    return 0;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:6:5: error: 'gets' was not declared in this scope; did you mean 'getw'?
    6 |     gets(a);
      |     ^~~~
      |     getw
Language: Java

public class Main {
  public static main(String[] args) {
    Scanner s = new Scanner(System.in);
    
    if(s.hasNext()) {
      String input = s.next();
      System.out.println(input.substring(0, 3) + " " + input.substring(4));
    }
  }
}

Compiler output:
Main.java:2: error: invalid method declaration; return type required
  public static main(String[] args) {
                ^
1 error
Language: C++

#include <iostream>
#include <cmath>
#include <stdio.h>
#include <algorithm>
using namespace std;
int main()
{
    char a[12];
    gets(a);
    for(int i=0;i<4;i++) printf("%c",a[i]);
    printf(" ");
    for(int i=4;i<12;i++) printf("%c",a[i]);
    return 0;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:9:5: error: 'gets' was not declared in this scope; did you mean 'getw'?
    9 |     gets(a);
      |     ^~~~
      |     getw
Language: C++

#include <iostream>
#include <stdio.h>
#include <cstdio>.
using namespace std;
int main(){
	char s[20];
	gets(s);
	string strS;
	strS.append(s);
	string result = strS.substr(0,4) + string(" ") + strS.substr(4,11);
	printf("%s", result.c_str());
	return 0;
}

Compiler output:
a.cc:3:18: warning: extra tokens at end of #include directive
    3 | #include <cstdio>.
      |                  ^
a.cc: In function 'int main()':
a.cc:7:9: error: 'gets' was not declared in this scope; did you mean 'getw'?
    7 |         gets(s);
      |         ^~~~
      |         getw
Language: C++

#include <iostream>
#include <stdio.h>
using namespace std;
int main(){
	char s[20];
	gets(s);
	string strS;
	strS.append(s);
	string result = strS.substr(0,4) + string(" ") + strS.substr(4,11);
	printf("%s", result.c_str());
	return 0;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:6:9: error: 'gets' was not declared in this scope; did you mean 'getw'?
    6 |         gets(s);
      |         ^~~~
      |         getw
Language: C++

#include <iostream>
#include <stdio.h>
using namespace std;
int main(int argc, char **argv){
	char s[20];
	gets(s);
	string strS;
	strS.append(s);
	string result = strS.substr(0,4) + string(" ") + strS.substr(4,11);
	printf("%s", result.c_str());
	return 0;
}

Compiler output:
a.cc: In function 'int main(int, char**)':
a.cc:6:9: error: 'gets' was not declared in this scope; did you mean 'getw'?
    6 |         gets(s);
      |         ^~~~
      |         getw
Language: C++

#include <iostream>
#include <stdio.h>
using namespace std;
int main(int argc, char **argv){
	char s[20];
	gets_s(s);
	string strS;
	strS.append(s);
	string result = strS.substr(0,4) + string(" ") + strS.substr(4,11);
	printf("%s", result.c_str());
	return 0;
}

Compiler output:
a.cc: In function 'int main(int, char**)':
a.cc:6:9: error: 'gets_s' was not declared in this scope
    6 |         gets_s(s);
      |         ^~~~~~
Language: C++

#include<iostream>
#include<string>
using namespace std;
int main(){
string s;
cin>>s;
s.insert(4, “ “); 
cout<<s<<endl;
return 0;
}


Compiler output:
a.cc:7:13: error: extended character “ is not valid in an identifier
    7 | s.insert(4, “ “);
      |             ^
a.cc:7:15: error: extended character “ is not valid in an identifier
    7 | s.insert(4, “ “);
      |               ^
a.cc: In function 'int main()':
a.cc:7:13: error: '\U0000201c' was not declared in this scope
    7 | s.insert(4, “ “);
      |             ^
Language: C++

#include<iostream>
#include<conio.h>
#include<string>
using namespace std;
int main(){
string s;
cin>>s;
s.insert(4, “ “); 
cout<<s<<endl;
return 0;
}


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

/* package whatever; // don't place package name! */

import java.util.*;
import java.lang.*;
import java.io.*;

/* Name of the class has to be "Main" only if the class is public. */
class Ideone
{
	public static void main (String[] args) throws java.lang.Exception
	{
		String ret = "";
		while(true){
			ret += System.in.read();
		}
		System.out.println(ret);
	}
}

Compiler output:
Main.java:16: error: unreachable statement
		System.out.println(ret);
		^
1 error
Language: C++

#include<iostream>
#include<conio.h>
#include<string>
using namespace std;
int main(){
string s=”CODEFESTIVAL”;
s.insert(4, “ “); 
cout<<s;
getch()
return 0;
}


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

#include<iostream>
#include<cstring>
using namespace std;
int main(){
char S[12];
cout<<”Enter string:” << endl;
cin.getline(S,12);
Char* point;
point=strtok(S, “.”);
while(point!=NULL){
cout<<point<<endl;
point=strtok(NULL,”.”);
}
Retrun 0;

}


Compiler output:
a.cc:6:7: error: extended character ” is not valid in an identifier
    6 | cout<<”Enter string:” << endl;
      |       ^
a.cc:6:21: error: extended character ” is not valid in an identifier
    6 | cout<<”Enter string:” << endl;
      |                     ^
a.cc:9:17: error: extended character “ is not valid in an identifier
    9 | point=strtok(S, “.”);
      |                 ^
a.cc:9:19: error: extended character ” is not valid in an identifier
    9 | point=strtok(S, “.”);
      |                   ^
a.cc:12:19: error: extended character ” is not valid in an identifier
   12 | point=strtok(NULL,”.”);
      |                   ^
a.cc:12:21: error: extended character ” is not valid in an identifier
   12 | point=strtok(NULL,”.”);
      |                     ^
a.cc: In function 'int main()':
a.cc:6:7: error: '\U0000201dEnter' was not declared in this scope
    6 | cout<<”Enter string:” << endl;
      |       ^~~~~~
a.cc:8:1: error: 'Char' was not declared in this scope; did you mean 'char'?
    8 | Char* point;
      | ^~~~
      | char
a.cc:8:7: error: 'point' was not declared in this scope
    8 | Char* point;
      |       ^~~~~
a.cc:9:17: error: '\U0000201c' was not declared in this scope
    9 | point=strtok(S, “.”);
      |                 ^
a.cc:12:19: error: '\U0000201d' was not declared in this scope
   12 | point=strtok(NULL,”.”);
      |                   ^
a.cc:14:1: error: 'Retrun' was not declared in this scope
   14 | Retrun 0;
      | ^~~~~~
Language: Java

import java.util.*;
public class Main {
	public static void main(String[] args){
                Scanner sc = new Scanner(System.in);
		// get a integer
		int a = sc.nextInt();
                if (a == 1)
                return 0;
		// get two integers separated with half-width break
		int[] b = new int[a];
		try {
                for (int i = 0; i < a; i++) {
			b[i] = sc.nextInt();
		}
                }
                catch (Exception e) {
                        ;
                }
		int count = 0;
		
		for (int i = 0; i < a/2; i++) {
			if (b[b[i]-1] == i+1 && b[i] != (i+1))
				count++;
		}
		System.out.println(count);
    }
}

Compiler output:
Main.java:8: error: incompatible types: unexpected return value
                return 0;
                       ^
1 error
Language: C++

#include <iostream>
#include <string>


using namespace std;

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

    string tmp;
    cin >> tmp;

    int likes[number];

    char* pch;
    pch = strtok (tmp.c_str()," ");
    int pos = 0;
    while(pch != NULL){
        likes[pos] = atoi(pch);
        pch = strtok (tmp.c_str()," ");
        pos++;
    }

    int pairs = 0;
    for(int i = 0; i < number; i++){
        int r1 = i+1;
        int r1_likes = likes[i];
        int r2_likes = likes[r1_likes*2];

        if(r1 == r2_likes)
            pairs++;
    }
    cout << pairs << endl;
    return 0;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:18:11: error: 'strtok' was not declared in this scope; did you mean 'strtoq'?
   18 |     pch = strtok (tmp.c_str()," ");
      |           ^~~~~~
      |           strtoq
Language: C++

#include <iostream>
#include <string>

using namespace std;

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

    string tmp;
    cin >> tmp;

    int likes[number];

    char* pch;
    pch = strtok (tmp.c_str()," ");
    int pos = 0;
    while(pch != null){
        likes[pos] = atoi(pch);
        pch = strtok (tmp.c_str()," ");
        pos++;
    }

    int pairs = 0;
    for(int i = 0; i < number; i++){
        int r1 = i+1;
        int r1_likes = likes[i];
        int r2_likes = likes[r1_likes*2];

        if(r1 == r2_likes)
            pairs++;
    }
    cout << pairs << endl;
    return 0;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:17:11: error: 'strtok' was not declared in this scope; did you mean 'strtoq'?
   17 |     pch = strtok (tmp.c_str()," ");
      |           ^~~~~~
      |           strtoq
a.cc:19:18: error: 'null' was not declared in this scope
   19 |     while(pch != null){
      |                  ^~~~
Language: C

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

int main(){
	char s[14];int i=0;
	scanf("%s", str);
	for(i=12;i>3;i--){
		s[i]=s[i-1];
	}
	s[3]=' ';
	printf("%s",s);
	return 0;
} 

Compiler output:
main.c: In function 'main':
main.c:7:21: error: 'str' undeclared (first use in this function)
    7 |         scanf("%s", str);
      |                     ^~~
main.c:7:21: note: each undeclared identifier is reported only once for each function it appears in
Language: C++

#include<stdio.h>

using namespace std;

int main(){

	char s[11];

	scanf( "%c, &s[]");

	int i;

	for( i= 0; i< 3; i++){

		printf( "%c, s[i]");

	}

	printf( " ");

	while( 5<= i){

		if( 11< i) break;

		else{ 

			i++; printf( "%c, s[i]");

		}

	printf( \n);	

	}

	return 0;

}

Compiler output:
a.cc:31:17: error: stray '\' in program
   31 |         printf( \n);
      |                 ^
a.cc: In function 'int main()':
a.cc:31:18: error: 'n' was not declared in this scope
   31 |         printf( \n);
      |                  ^
Language: C++

#include<iostream>
using namespace std;
 
int main()
{
    string s;
    cin >> s;
    cout << st[0] << st[1] << st[2] << st[3] << " " << st[4] << st[5] << st[6] << st[[7] << st[8] << st[9] << st[10] << st[11] ;

    return 0;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:8:13: error: 'st' was not declared in this scope; did you mean 's'?
    8 |     cout << st[0] << st[1] << st[2] << st[3] << " " << st[4] << st[5] << st[6] << st[[7] << st[8] << st[9] << st[10] << st[11] ;
      |             ^~
      |             s
a.cc:8:85: error: two consecutive '[' shall only introduce an attribute before '[' token
    8 |     cout << st[0] << st[1] << st[2] << st[3] << " " << st[4] << st[5] << st[6] << st[[7] << st[8] << st[9] << st[10] << st[11] ;
      |                                                                                     ^
Language: Java

import java.util.Scanner;

public class main {

	public static void main(String[] args) {
		// TODO Auto-generated method stub
		Scanner sc = new Scanner(System.in);
		String str = sc.nextLine();

        char[] str_a = str.toCharArray();
        boolean flag = true;
        char[] str_1 = new char[4];
        char[] str_2 = new char[str.length()-4-1];
        for (int i=0;i<4;i++){
        	str_1[i] = str_a[i];
        }
        for (int i=4;i<str_a.length-1;i++){
        	str_2[i-4] = str_a[i];
        }
        String a = new String(str_1);
        String b = new String(str_2);
        String c = a+' '+b+'\n';
        System.out.println(c);
	}

}

Compiler output:
Main.java:3: error: class main is public, should be declared in a file named main.java
public class main {
       ^
1 error
Language: C++

#include <iostream>

using namespace std;

int Main()
{
    string st;
    cin >> st;
    for ( int i = 0; i < 3; i ++ )
    cout << st[i];
    cout << " ";
    for ( int i = 3; i < st.length(); i ++ )
    cout << st[i];
    return 0;
}


Compiler output:
/usr/bin/ld: /usr/lib/gcc/x86_64-linux-gnu/14/../../../x86_64-linux-gnu/Scrt1.o: in function `_start':
(.text+0x17): undefined reference to `main'
collect2: error: ld returned 1 exit status
Language: Java

import java.util.Scanner;

public class main {

	public static void main(String[] args) {
		// TODO Auto-generated method stub
		Scanner sc = new Scanner(System.in);
		String str = sc.nextLine();

        char[] str_a = str.toCharArray();
        boolean flag = true;
        char[] str_1 = new char[4];
        char[] str_2 = new char[str.length()-4];
        for (int i=0;i<4;i++){
        	str_1[i] = str_a[i];
        }
        for (int i=4;i<str_a.length;i++){
        	str_2[i-4] = str_a[i];
        }
        String a = new String(str_1);
        String b = new String(str_2);
        String c = a+' '+b+'\n';
        System.out.println(c);


	}

}


Compiler output:
Main.java:3: error: class main is public, should be declared in a file named main.java
public class main {
       ^
1 error
Language: C

#define _CRT_SECURE_NO_WARNINGS
#include <stdio.h>
#include <string.h>

int main(){
char ary1[14];
char ary2[14];
char ary3[14];
int i=0;
scanf("%s",ary1);
for(i=0;i<4;i++) ary3[i]=ary1[i];
for(i=0;i<8;i++) ary2[i]=ary1[4+i];
strcat(ary3," ");
strcat(ary3,ary2);
printf("%s/n",art3);
return 0;
}

Compiler output:
main.c: In function 'main':
main.c:15:15: error: 'art3' undeclared (first use in this function); did you mean 'ary3'?
   15 | printf("%s/n",art3);
      |               ^~~~
      |               ary3
main.c:15:15: note: each undeclared identifier is reported only once for each function it appears in
Language: C++

#include<iostream>;

using namespace std;

int main(){

	char s[11];

	scanf( %s, s[]);

	int i;

	for( i= 0; i< 3; i++){

		printf( %s, s[i]);

	}

	printf( " ");

	while( 5=< i){

		i++;

		printf( %s, s[i]);

		if( 11< i) break;

	}

	return 0;

}

Compiler output:
a.cc:1:19: warning: extra tokens at end of #include directive
    1 | #include<iostream>;
      |                   ^
a.cc: In function 'int main()':
a.cc:9:16: error: expected primary-expression before '%' token
    9 |         scanf( %s, s[]);
      |                ^
a.cc:9:22: error: expected primary-expression before ']' token
    9 |         scanf( %s, s[]);
      |                      ^
a.cc:15:25: error: expected primary-expression before '%' token
   15 |                 printf( %s, s[i]);
      |                         ^
a.cc:21:18: error: expected primary-expression before '<' token
   21 |         while( 5=< i){
      |                  ^
a.cc:25:25: error: expected primary-expression before '%' token
   25 |                 printf( %s, s[i]);
      |                         ^
Language: C

#define _CRT_SECURE_NO_WARNINGS
#include <stdio.h>
#include <string.h>

int main(){
char ary1[14];
char ary2[14];
char ary3[14];
int i=0;
scanf_s("%s",ary1);
for(i=0;i<4;i++) ary3[i]=ary1[i];
for(i=0;i<8;i++) ary2[i]=ary1[4+i];
strcat(ary3," ");
strcat(art3,ary2);
printf("%s/n",art3);
return 0;
}

Compiler output:
main.c: In function 'main':
main.c:10:1: error: implicit declaration of function 'scanf_s'; did you mean 'scanf'? [-Wimplicit-function-declaration]
   10 | scanf_s("%s",ary1);
      | ^~~~~~~
      | scanf
main.c:14:8: error: 'art3' undeclared (first use in this function); did you mean 'ary3'?
   14 | strcat(art3,ary2);
      |        ^~~~
      |        ary3
main.c:14:8: note: each undeclared identifier is reported only once for each function it appears in
Language: C

#define _CRT_SECURE_NO_WARNINGS
#include <stdio.h>
#include <strong.h>

int main(){
char ary1[14];
char ary2[14];
char ary3[14];
int i=0;
scanf_s("%s",ary1);
for(i=0;i<4;i++) ary3[i]=ary1[i];
for(i=0;i<8;i++) ary2[i]=ary1[4+i];
strcat(ary3," ");
strcat(art3,ary2);
printf("%s/n",art3);
return 0;
}

Compiler output:
main.c:3:10: fatal error: strong.h: No such file or directory
    3 | #include <strong.h>
      |          ^~~~~~~~~~
compilation terminated.
Language: C

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

int main(){
char ary1[14];
char ary2[14];
char ary3[14];
int i=0;
scanf_s("%s",ary1);
for(i=0;i<4;i++) ary3[i]=ary1[i];
for(i=0;i<8;i++) ary2[i]=ary1[4+i];
strcat(ary3," ");
strcat(art3,ary2);
printf("%s/n",art3);
return 0;
}

Compiler output:
main.c: In function 'main':
main.c:9:1: error: implicit declaration of function 'scanf_s'; did you mean 'scanf'? [-Wimplicit-function-declaration]
    9 | scanf_s("%s",ary1);
      | ^~~~~~~
      | scanf
main.c:12:1: error: implicit declaration of function 'strcat' [-Wimplicit-function-declaration]
   12 | strcat(ary3," ");
      | ^~~~~~
main.c:2:1: note: include '<string.h>' or provide a declaration of 'strcat'
    1 | #include <stdio.h>
  +++ |+#include <string.h>
    2 | #include <stdio.h>
main.c:12:1: warning: incompatible implicit declaration of built-in function 'strcat' [-Wbuiltin-declaration-mismatch]
   12 | strcat(ary3," ");
      | ^~~~~~
main.c:12:1: note: include '<string.h>' or provide a declaration of 'strcat'
main.c:13:8: error: 'art3' undeclared (first use in this function); did you mean 'ary3'?
   13 | strcat(art3,ary2);
      |        ^~~~
      |        ary3
main.c:13:8: note: each undeclared identifier is reported only once for each function it appears in
Language: Java

import java.util.Scanner;

public class main {

	public static void main(String[] args) {
		// TODO Auto-generated method stub
		Scanner sc = new Scanner(System.in);
		String str = sc.nextLine();
	//	String str = "CODEFESTIVel";
		String n = " ";
		if (str.length()==12){
			System.out.println();
			char[] str_a = str.toCharArray();
			boolean flag = true;
			char[] str_1 = new char[4];
			char[] str_2 = new char[str.length()-4];
			for (int i=1;i<str_a.length;i++){
				if (str_a[i]>=55 && str_a[i]<=90){
					flag = true;
				}
				else{
					flag = false;
					break;
				}
			}
			if(flag == true){
				for (int i=0;i<4;i++){
					str_1[i] = str_a[i];
				}
				for (int i=4;i<str_a.length;i++){
					str_2[i-4] = str_a[i];
				}

				String a = new String(str_1);
				String b = new String(str_2);
				String c = a+" "+b+'\0';
				System.out.println(c);
			}
			else{ System.out.println(str);}
			
		}
		else{ System.out.println(str);}
	}

}

Compiler output:
Main.java:3: error: class main is public, should be declared in a file named main.java
public class main {
       ^
1 error
Language: C

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

using namespace std;

int main(void)
{
    char s[13];
    scanf("%s",s);
    printf("%c%c%c%c %c%c%c%c%c%c%c%c\n",s[0],s[1],s[2],s[3],s[4],s[5],s[6],s[7],s[8],s[9],s[10],s[11]);
    return 0;
}


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

#include <stdio.h>
int main(void){
    char buf[25];
    
    scanf("%s",buf);
   
    char temp;
    for(int i=0;i<25;i++){
        if(4==i){
            temp=buf[i];
            buf[i]=" ";
        }else if(4 < i){
            int t=buf[i];
            buf[i] = temp;
            temp=t;
        }
    }
    printf(buf);
    
}


Compiler output:
a.cc: In function 'int main()':
a.cc:11:20: error: invalid conversion from 'const char*' to 'char' [-fpermissive]
   11 |             buf[i]=" ";
      |                    ^~~
      |                    |
      |                    const char*
Language: Java

public class Main {
    public String A(String str) {

			char[] str_a = str.toCharArray();
			boolean flag = true;
			char[] str_1 = new char[4];
			char[] str_2 = new char[8];

				for (int i=0;i<4;i++){
					str_1[i] = str_a[i];
				}
				for (int i=4;i<str_a.length;i++){
					str_2[i-4] = str_a[i];
				}
 
				String a = new String(str_1);
				String b = new String(str_2);
				String c = a+" "+b;
				return c;

		}   
    }
}

Compiler output:
Main.java:23: error: class, interface, enum, or record expected
}
^
1 error
Language: C++

#include <iostream>
#include <istream>
#include <string>

using namespace std;

int main(){
    string src;
   
    int pos = 0;

    cin >> src;
    string rst(src.length()+2, '');
    for(int i = 0; i < src.length() + 2; i++){
        if(i == 4){
            rst[i] = ' ';
        }
        else{
            rst[i] = src[i];
            pos++;
        }
    }
    printf("%s", rst);
    return 0;
}

Compiler output:
a.cc:13:32: error: empty character constant
   13 |     string rst(src.length()+2, '');
      |                                ^~
Language: Java

public class Solution {
    public String A(String str) {
          		if (str.length()==12){
			char[] str_a = str.toCharArray();
			boolean flag = true;
			char[] str_1 = new char[4];
			char[] str_2 = new char[8];
			for (int i=1;i<str_a.length;i++){
				if (str_a[i]>=55 && str_a[i]<=90){
					flag = true;
				}
				else{
					flag = false;
					break;
				}
			}
			if(flag == true){
				for (int i=0;i<4;i++){
					str_1[i] = str_a[i];
				}
				for (int i=4;i<str_a.length;i++){
					str_2[i-4] = str_a[i];
				}
 
				String a = new String(str_1);
				String b = new String(str_2);
				String c = a+" "+b;
				return c;
			}
                        else{
                            return null;
                        }
		}   
                else {
                     return null;    
                } 
    }
}

Compiler output:
Main.java:1: error: class Solution is public, should be declared in a file named Solution.java
public class Solution {
       ^
1 error
Language: Java

package testA;

public class main {

	public static void main(String[] args) {
		// TODO Auto-generated method stub
		String str = "CODEFESTIVEL";

		if (str.length()==12){
			System.out.println();
			char[] str_a = str.toCharArray();
			boolean flag = true;
			char[] str_1 = new char[4];
			char[] str_2 = new char[8];
			for (int i=1;i<str_a.length;i++){
				if (str_a[i]>=55 && str_a[i]<=90){
					flag = true;
				}
				else{
					flag = false;
					break;
				}
			}
			if(flag == true){
				for (int i=0;i<4;i++){
					str_1[i] = str_a[i];
				}
				for (int i=4;i<str_a.length;i++){
					str_2[i-4] = str_a[i];
				}

				String a = new String(str_1);
				String b = new String(str_2);
				String c = a+" "+b;
				System.out.println(c);
			}
			
			//System.out.println(a+" "+b);
		}
	}

}


Compiler output:
Main.java:3: error: class main is public, should be declared in a file named main.java
public class main {
       ^
1 error
Language: Java

package testA;

public class Solution {
    public String A(String s) {
    		if (str.length()==12){
			char[] str_a = str.toCharArray();
			boolean flag = true;
			char[] str_1 = new char[4];
			char[] str_2 = new char[8];
			for (int i=1;i<str_a.length;i++){
				if (str_a[i]>=55 && str_a[i]<=90){
					flag = true;
				}
				else{
					flag = false;
					break;
				}
			}
			if(flag == true){
				for (int i=0;i<4;i++){
					str_1[i] = str_a[i];
				}
				for (int i=4;i<str_a.length;i++){
					str_2[i-4] = str_a[i];
				}
 
				String a = new String(str_1);
				String b = new String(str_2);
				String c = a+" "+b;
				return c;
			}
                        else{
                            return null;
                        }
		}   
                else {
                     return null;    
                } 
    }
}

Compiler output:
Main.java:3: error: class Solution is public, should be declared in a file named Solution.java
public class Solution {
       ^
Main.java:5: error: cannot find symbol
    		if (str.length()==12){
    		    ^
  symbol:   variable str
  location: class Solution
Main.java:6: error: cannot find symbol
			char[] str_a = str.toCharArray();
			               ^
  symbol:   variable str
  location: class Solution
3 errors
Language: C++

#include <iostream>
#include <istream>
#include <string>

using namespace std;

void main(){
    string str;
    cin >>  str ;
    string rst(str.length(), '');
    int pos = 0;
    for(int i = 0; i < rst.length(); i++){
        if(i == 4){ 
            rst[i] = ' ';
        }  
        else{
            rst[i] = str[pos];
            pos++;
        }
            
    }
    cout << rst << endl;
}

Compiler output:
a.cc:10:30: error: empty character constant
   10 |     string rst(str.length(), '');
      |                              ^~
a.cc:7:1: error: '::main' must return 'int'
    7 | void main(){
      | ^~~~
Language: C++

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

const int N=1e5+5;
int v[N];

int main(int argc, char const *argv[])
{
	/* code */
	while (cin>>n){
		for (int i=1;i<=n;i++) scanf("%d",v+i);
		int ans=0;
		for (int i=1;i<=n;i++){
			int t=v[i];
			if (v[t]==i) ans++;
		}
		cout<<ans/2<<endl;
	}
	return 0;
}

Compiler output:
a.cc: In function 'int main(int, const char**)':
a.cc:10:21: error: 'n' was not declared in this scope
   10 |         while (cin>>n){
      |                     ^
Language: Java

public class Solution {
    public String A(String s) {
    		if (str.length()==12){
			char[] str_a = str.toCharArray();
			boolean flag = true;
			char[] str_1 = new char[4];
			char[] str_2 = new char[8];
			for (int i=1;i<str_a.length;i++){
				if (str_a[i]>=55 && str_a[i]<=90){
					flag = true;
				}
				else{
					flag = false;
					break;
				}
			}
			if(flag == true){
				for (int i=0;i<4;i++){
					str_1[i] = str_a[i];
				}
				for (int i=4;i<str_a.length;i++){
					str_2[i-4] = str_a[i];
				}
 
				String a = new String(str_1);
				String b = new String(str_2);
				String c = a+" "+b;
				return c;
			}
                        else{
                            return null;
                        }
		}   
                else {
                     return null;    
                } 
    }
}

Compiler output:
Main.java:1: error: class Solution is public, should be declared in a file named Solution.java
public class Solution {
       ^
Main.java:3: error: cannot find symbol
    		if (str.length()==12){
    		    ^
  symbol:   variable str
  location: class Solution
Main.java:4: error: cannot find symbol
			char[] str_a = str.toCharArray();
			               ^
  symbol:   variable str
  location: class Solution
3 errors
Language: Java

public class Solution {
    public String A(String s) {
    		if (str.length()==12){
			char[] str_a = str.toCharArray();
			boolean flag = true;
			char[] str_1 = new char[4];
			char[] str_2 = new char[8];
			for (int i=1;i<str_a.length;i++){
				if (str_a[i]>=55 && str_a[i]<=90){
					flag = true;
				}
				else{
					flag = false;
					break;
				}
			}
			if(flag == true){
				for (int i=0;i<4;i++){
					str_1[i] = str_a[i];
				}
				for (int i=4;i<str_a.length;i++){
					str_2[i-4] = str_a[i];
				}

				String a = new String(str_1);
				String b = new String(str_2);
				String c = a+" "+b;
				return c
			}
                        else{
                            return null;
                        }
		}   
                else {
                     return null;    
                } 
    }
}

Compiler output:
Main.java:28: error: ';' expected
				return c
				        ^
1 error
Language: C++

#include <algorithm>
#include <cstdio>
#include <map>

using namespace std;

typedef long long ll;

char s[10];

int main() {
  gets(s);
  for (int i = 0; i < 12; i++) {
    if (i == 4) putchar(' ');
    putchar(s[i]);
  }
  putchar('\n');
}


Compiler output:
a.cc: In function 'int main()':
a.cc:12:3: error: 'gets' was not declared in this scope; did you mean 'getw'?
   12 |   gets(s);
      |   ^~~~
      |   getw
Language: Java


public class Mainl {
	public static void main(String[] args) {
		String str = System.console().readLine();
		String strFirst = str.substring(0, 4);
		String strLast = str.substring(4);
		str = strFirst + " " + strLast + "\n";
		System.out.print(str);
	}
}



Compiler output:
Main.java:2: error: class Mainl is public, should be declared in a file named Mainl.java
public class Mainl {
       ^
1 error
Language: C++

#include <algorithm>
#include <cstdio>
#include <map>

using namespace std;

typedef long long ll;

char s[10];

int main() {
  gets(s);
  for (int i = 0; i < 12; i++) {
    if (i == 4) putchar(' ');
    putchar(s[i]);
  }
}


Compiler output:
a.cc: In function 'int main()':
a.cc:12:3: error: 'gets' was not declared in this scope; did you mean 'getw'?
   12 |   gets(s);
      |   ^~~~
      |   getw
Language: Java

import java.util.*;

public class Contest {
    public static void main(String[] args) {
        Scanner sc = new Scanner(System.in);
        sc.next();
        String code = sc.next();
        StringBuffer sb = new StringBuffer();
        char[] m = code.toCharArray();
        for (int i = 0; i < m.length; i++){
            sb.append(m[i]);
            if (i == 3){
                sb.append(" ");
            }
        }
        System.out.println(sb);
    }
}

Compiler output:
Main.java:3: error: class Contest is public, should be declared in a file named Contest.java
public class Contest {
       ^
1 error
Language: C

#include <stdio.h>
#include <string.h>

mian(){
char ary1[100];
char ary2[100];
char ary3[100];
int i=0;
//fgets(ary1,sizeof(char)*15,stdin);
scanf("%s",ary1);
while(i<4){
ary2[i]=ary1[i];
i++;
}
while(i<8){
ary3[i]=ary1[i+4];
i++;
}
strcat(ary2," ");
strcat(ary2,ary3);
printf("%s\n",ary2);
return 0;
}

Compiler output:
main.c:4:1: error: return type defaults to 'int' [-Wimplicit-int]
    4 | mian(){
      | ^~~~
Language: C++

#include <cstdio>
#include <cstdlib>
#include <algorithm>
#include <vector>
#include <cstring>
#include <set>
#include <functional>
#include <map>
#include <queue>
#include <cmath>
#include <string>
#include <stack>
using namespace std;
int main(void){
string str;
cin >> str;
cout << str.substr(0,4) << " " << str.substr(4,8);
return 0;
}


Compiler output:
a.cc: In function 'int main()':
a.cc:16:1: error: 'cin' was not declared in this scope
   16 | cin >> str;
      | ^~~
a.cc:13:1: note: 'std::cin' is defined in header '<iostream>'; this is probably fixable by adding '#include <iostream>'
   12 | #include <stack>
  +++ |+#include <iostream>
   13 | using namespace std;
a.cc:17:1: error: 'cout' was not declared in this scope
   17 | cout << str.substr(0,4) << " " << str.substr(4,8);
      | ^~~~
a.cc:17:1: note: 'std::cout' is defined in header '<iostream>'; this is probably fixable by adding '#include <iostream>'
Language: C

#include <stdio.h>
#include <string.h>

int mian(){
char ary1[100];
char ary2[100];
char ary3[100];
int i=0;
//fgets(ary1,sizeof(char)*15,stdin);
scanf("%s",ary1);
while(i<4){
ary2[i]=ary1[i];
i++;
}
while(i<8){
ary3[i]=ary1[i+4];
i++;
}
strcat(ary2," ");
strcat(ary2,ary3);
printf("%s\n",ary2);
return 0;
}

Compiler output:
/usr/bin/ld: /usr/lib/gcc/x86_64-linux-gnu/14/../../../x86_64-linux-gnu/Scrt1.o: in function `_start':
(.text+0x17): undefined reference to `main'
collect2: error: ld returned 1 exit status
Language: C++

#include <iostream>
#include <vector>

template<typename type>
std::vector<type>&& input_value(std::istream& ist)
{
	type buffer;
	std::vector<type> ret;

	while (ist >> buffer) {
		ret.push_back(buffer);
	}

	return ret;
}

int main()
{
	int count{ 0 };
	std::vector<int> rabbits{ input_value<int>(std::cin) };

	for (auto i{ 0 }; i < rabbits.size(); ++i) {
		if (i == rabbits.at(rabbits.at(i)))
			++count;
	}

	std::cout << count << std::endl;
}


Compiler output:
a.cc: In instantiation of 'std::vector<type>&& input_value(std::istream&) [with type = int; std::istream = std::basic_istream<char>]':
a.cc:20:44:   required from here
   20 |         std::vector<int> rabbits{ input_value<int>(std::cin) };
      |                                   ~~~~~~~~~~~~~~~~^~~~~~~~~~
a.cc:14:16: error: cannot bind rvalue reference of type 'std::vector<int>&&' to lvalue of type 'std::vector<int>'
   14 |         return ret;
      |                ^~~
Language: C++

#include <string>
using namespace std;

string insertSpace(string s){
    string res = s.insert(4, " ");
    res = res.append("\n");
    return res;
};

Compiler output:
/usr/bin/ld: /usr/lib/gcc/x86_64-linux-gnu/14/../../../x86_64-linux-gnu/Scrt1.o: in function `_start':
(.text+0x17): undefined reference to `main'
collect2: error: ld returned 1 exit status
Language: C

#include <stdio.h>
#include <string.h>

int mian(){
char ary1[14];
char ary2[14];
char ary3[14];
int i=0;
//fgets(ary1,sizeof(char)*15,stdin);
scanf("%s",ary1);
while(i<4){
ary2[i]=ary1[i];
i++;
}
while(i<8){
ary3[i]=ary1[i+4];
i++;
}
strcat(ary2," ");
strcat(ary2,ary3);
printf("%s\n",ary2);
return 0;
}

Compiler output:
/usr/bin/ld: /usr/lib/gcc/x86_64-linux-gnu/14/../../../x86_64-linux-gnu/Scrt1.o: in function `_start':
(.text+0x17): undefined reference to `main'
collect2: error: ld returned 1 exit status
Language: Java

import java.util.*;

Public class Main{
  
  public static void main(String [] args){
    Scanner sc = new Scanner (System.in);
    String in = sc.next();
    return in.substring(0,4) + " " + in.substring(4);
  }
 
}

Compiler output:
Main.java:3: error: class, interface, enum, or record expected
Public class Main{
^
1 error
Language: Java

public class Codefestival {
	public static void main(String[] args) {
		String str = args[0];
		String strFirst = str.substring(0, 4);
		String strLast = str.substring(4);
		str = strFirst + " " + strLast + "\n";
		System.out.print(str);
	}
}



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

#include <stdio.h>
#include <string.h>

int mian(){
char ary1[14];
char ary2[14];
char ary3[14];
int i;
fgets(ary1,sizeof(char)*15,stdin);
//scanf("%s",ary1);
while(i<4) ary2[i]=ary1[i];
while(i<8) ary3[i]=ary1[i+4];
strcat(ary2," ");
strcat(ary2,ary3);
printf("%s\n",ary2);
return 0;
}

Compiler output:
main.c: In function 'mian':
main.c:9:1: warning: 'fgets' writing 15 bytes into a region of size 14 overflows the destination [-Wstringop-overflow=]
    9 | fgets(ary1,sizeof(char)*15,stdin);
      | ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
main.c:5:6: note: destination object 'ary1' of size 14
    5 | char ary1[14];
      |      ^~~~
In file included from main.c:1:
/usr/include/stdio.h:654:14: note: in a call to function 'fgets' declared with attribute 'access (write_only, 1, 2)'
  654 | extern char *fgets (char *__restrict __s, int __n, FILE *__restrict __stream)
      |              ^~~~~
/usr/bin/ld: /usr/lib/gcc/x86_64-linux-gnu/14/../../../x86_64-linux-gnu/Scrt1.o: in function `_start':
(.text+0x17): undefined reference to `main'
collect2: error: ld returned 1 exit status
Language: Java


public class codefestival {
	public static void main(String[] args) {
		String str = args[0];
		String strFirst = str.substring(0, 4);
		String strLast = str.substring(4);
		str = strFirst + " " + strLast + "\n";
		System.out.print(str);
	}
}



Compiler output:
Main.java:2: error: class codefestival is public, should be declared in a file named codefestival.java
public class codefestival {
       ^
1 error
Language: C++

#include <iostream>

int main() {
   string s;
   cin >> s;
   cout << s.substr(0, 4) << " " << s.substr(4);

   return 0;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:4:4: error: 'string' was not declared in this scope
    4 |    string s;
      |    ^~~~~~
a.cc:4:4: note: suggested alternatives:
In file included from /usr/include/c++/14/iosfwd:41,
                 from /usr/include/c++/14/ios:40,
                 from /usr/include/c++/14/ostream:40,
                 from /usr/include/c++/14/iostream:41,
                 from a.cc:1:
/usr/include/c++/14/bits/stringfwd.h:77:33: note:   'std::string'
   77 |   typedef basic_string<char>    string;
      |                                 ^~~~~~
In file included from /usr/include/c++/14/bits/locale_classes.h:40,
                 from /usr/include/c++/14/bits/ios_base.h:41,
                 from /usr/include/c++/14/ios:44:
/usr/include/c++/14/string:76:11: note:   'std::pmr::string'
   76 |     using string    = basic_string<char>;
      |           ^~~~~~
a.cc:5:4: error: 'cin' was not declared in this scope; did you mean 'std::cin'?
    5 |    cin >> s;
      |    ^~~
      |    std::cin
/usr/include/c++/14/iostream:62:18: note: 'std::cin' declared here
   62 |   extern istream cin;           ///< Linked to standard input
      |                  ^~~
a.cc:5:11: error: 's' was not declared in this scope
    5 |    cin >> s;
      |           ^
a.cc:6:4: error: 'cout' was not declared in this scope; did you mean 'std::cout'?
    6 |    cout << s.substr(0, 4) << " " << s.substr(4);
      |    ^~~~
      |    std::cout
/usr/include/c++/14/iostream:63:18: note: 'std::cout' declared here
   63 |   extern ostream cout;          ///< Linked to standard output
      |                  ^~~~
Language: Java

public class Codefestival {
	public static void main(String[] args) {
		String str = args[0];
		String strFirst = str.substring(0, 3);
		String strLast = str.substring(4);
		str = strFirst + " " + strLast + "\n";
		System.out.print(str);
	}
}



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

#include <stdio.h>
#include <string.h>

int mian(){
char ary1[14];
char ary2[14];
char ary3[14];
int i;
scanf("%s",ary1);
while(i<4) ary2[i]=ary1[i];
while(i<8) ary3[i]=ary1[i+4];
strcat(ary2," ");
strcat(ary2,ary3);
printf("%s\n",ary2);
return 0;
}

Compiler output:
/usr/bin/ld: /usr/lib/gcc/x86_64-linux-gnu/14/../../../x86_64-linux-gnu/Scrt1.o: in function `_start':
(.text+0x17): undefined reference to `main'
collect2: error: ld returned 1 exit status
Language: C++

#include <cstdio>
#include <cstdlib>
#include <algorithm>
#include <vector>
#include <cstring>
#include <set>
#include <functional>
#include <map>
#include <queue>
#include <cmath>
#include <string>
#include <stack>
using namespace std;
int main(void){
string str;
scanf("%s",str);
cout << str.substr(0,4) << " " << str.substr(4,8);
return 0;
}


Compiler output:
a.cc: In function 'int main()':
a.cc:17:1: error: 'cout' was not declared in this scope
   17 | cout << str.substr(0,4) << " " << str.substr(4,8);
      | ^~~~
a.cc:13:1: note: 'std::cout' is defined in header '<iostream>'; this is probably fixable by adding '#include <iostream>'
   12 | #include <stack>
  +++ |+#include <iostream>
   13 | using namespace std;
Language: C

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


int main (int argc, char *argv[]){
	char string[12];
	scanf(%s,&string);
	int i = 0;
	while (i<12){
		if (i = 4) printf(" ");
		else {
			printf("%c",string[i]);
			i++;
		}
	}
	return 0;
}

Compiler output:
main.c: In function 'main':
main.c:7:15: error: expected expression before '%' token
    7 |         scanf(%s,&string);
      |               ^
Language: Java

public class Main
{
	public static void main(String[] args)
	{
		Scanner sc = new Scanner(System.in);
		String input = sc.nextLine();
		
		System.out.println(question1(input));
	}
	
	public static String question1(String input)
	{
		String result = input.substring(0, 4) + " " + input.substring(4);
		
		return result;
	}
}

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

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


int main (int argc, char *argv[]){
	char* string[12];
	scanf(%s,&string);
	int i = 0;
	while (i<12){
		if (i = 4) printf(" ");
		else {
			printf("%c",&string[i]);
			i++;
		}
	}
	return 0;
}

Compiler output:
main.c: In function 'main':
main.c:7:15: error: expected expression before '%' token
    7 |         scanf(%s,&string);
      |               ^
Language: C

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


int main (int argc, char *argv[]){
	char* string[12];
	scanf(%s,&string);
	int i = 0;
	while (i<12){
		if (i = 4) printf(" ");
		else {
			printf("%c",string[i]);
			i++;
		}
	}
	return 0;
}

Compiler output:
main.c: In function 'main':
main.c:7:15: error: expected expression before '%' token
    7 |         scanf(%s,&string);
      |               ^
Language: C

string s1, s2;
s1=LOVE;
s2=EASTASIA;
printf("%s%s\n","%s %s",s1,s2,s1,s2);
return 0;


Compiler output:
main.c:1:1: error: unknown type name 'string'
    1 | string s1, s2;
      | ^~~~~~
main.c:2:1: warning: data definition has no type or storage class
    2 | s1=LOVE;
      | ^~
main.c:2:1: error: type defaults to 'int' in declaration of 's1' [-Wimplicit-int]
main.c:2:4: error: 'LOVE' undeclared here (not in a function)
    2 | s1=LOVE;
      |    ^~~~
main.c:3:1: warning: data definition has no type or storage class
    3 | s2=EASTASIA;
      | ^~
main.c:3:1: error: type defaults to 'int' in declaration of 's2' [-Wimplicit-int]
main.c:3:4: error: 'EASTASIA' undeclared here (not in a function)
    3 | s2=EASTASIA;
      |    ^~~~~~~~
main.c:4:8: error: expected declaration specifiers or '...' before string constant
    4 | printf("%s%s\n","%s %s",s1,s2,s1,s2);
      |        ^~~~~~~~
main.c:4:17: error: expected declaration specifiers or '...' before string constant
    4 | printf("%s%s\n","%s %s",s1,s2,s1,s2);
      |                 ^~~~~~~
main.c:4:25: error: expected declaration specifiers or '...' before 's1'
    4 | printf("%s%s\n","%s %s",s1,s2,s1,s2);
      |                         ^~
main.c:4:28: error: expected declaration specifiers or '...' before 's2'
    4 | printf("%s%s\n","%s %s",s1,s2,s1,s2);
      |                            ^~
main.c:4:31: error: expected declaration specifiers or '...' before 's1'
    4 | printf("%s%s\n","%s %s",s1,s2,s1,s2);
      |                               ^~
main.c:4:34: error: expected declaration specifiers or '...' before 's2'
    4 | printf("%s%s\n","%s %s",s1,s2,s1,s2);
      |                                  ^~
main.c:5:1: error: expected identifier or '(' before 'return'
    5 | return 0;
      | ^~~~~~