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

int main(){

char *str;

scanf("%s",str);

switch (str)
case "a":
case "i":
case "u":
case "e":
case "o":
printf("vowel\n");
break;
default:
printf("consonant\n");
return 0
}


Compiler output:
a.cc: In function 'int main()':
a.cc:5:1: error: 'scanf' was not declared in this scope
    5 | scanf("%s",str);
      | ^~~~~
a.cc:7:9: error: switch quantity not an integer
    7 | switch (str)
      |         ^~~
a.cc:13:1: error: 'printf' was not declared in this scope
   13 | printf("vowel\n");
      | ^~~~~~
a.cc:1:1: note: 'printf' is defined in header '<cstdio>'; this is probably fixable by adding '#include <cstdio>'
  +++ |+#include <cstdio>
    1 | int main(){
a.cc:14:1: error: break statement not within loop or switch
   14 | break;
      | ^~~~~
a.cc:15:1: error: case label not within a switch statement
   15 | default:
      | ^~~~~~~
a.cc:16:1: error: 'printf' was not declared in this scope
   16 | printf("consonant\n");
      | ^~~~~~
a.cc:16:1: note: 'printf' is defined in header '<cstdio>'; this is probably fixable by adding '#include <cstdio>'
a.cc:17:9: error: expected ';' before '}' token
   17 | return 0
      |         ^
      |         ;
   18 | }
      | ~
Language: C

#include"stdio.h"
void main(){
 char x; scanf("%c",&x);
 switch(x){
case 'a':
case 'i':
case 'u':
case 'e':
case 'o':
print("vowel");
break;
default:
print("consonant");
break;
}}

Compiler output:
main.c: In function 'main':
main.c:10:1: error: implicit declaration of function 'print'; did you mean 'printf'? [-Wimplicit-function-declaration]
   10 | print("vowel");
      | ^~~~~
      | printf
Language: C

#include"studio.h"
void main(){
 char x; scanf("%c",&x);
 switch(x){
case 'a':
case 'i':
case 'u':
case 'e':
case 'o':
print("vowel");
break;
default:
print("consonant");
break;
}}

Compiler output:
main.c:1:9: fatal error: studio.h: No such file or directory
    1 | #include"studio.h"
      |         ^~~~~~~~~~
compilation terminated.
Language: C++

puts /[aiueo]/ =~ gets ? 'vowel' : 'consonant'


Compiler output:
a.cc:1:26: warning: multi-character literal with 5 characters exceeds 'int' size of 4 bytes
    1 | puts /[aiueo]/ =~ gets ? 'vowel' : 'consonant'
      |                          ^~~~~~~
a.cc:1:36: warning: multi-character literal with 9 characters exceeds 'int' size of 4 bytes
    1 | puts /[aiueo]/ =~ gets ? 'vowel' : 'consonant'
      |                                    ^~~~~~~~~~~
a.cc:1:1: error: 'puts' does not name a type
    1 | puts /[aiueo]/ =~ gets ? 'vowel' : 'consonant'
      | ^~~~
Language: Java

import java.io.*;
public class Atcoder {
	public static void main(String[] args)throws IOException{
		BufferedReader br=new BufferedReader(new InputStreamReader(System.in));
		String str=br.readLine();
		if(str.equals("a")||str.equals("i")||str.equals("u")||str.equals("e")||str.equals("o")){
			System.out.println("vowel");
		}
		else System.out.println("consonant");
	}
}

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

import java.io.*;
class UOAI{
public static void main(String[] args)throws IOExeption{
    BufferedReader br=new BufferedReader(new Input StreamReader(System.in));
     String str=br.readine();
    if(str=='a'||str=='i'||str=='u'||str=='e'||str=='o')
         System.out.println("vowel");
   else System.out.println("consonant");
  }
}


Compiler output:
Main.java:4: error: '(' or '[' expected
    BufferedReader br=new BufferedReader(new Input StreamReader(System.in));
                                                   ^
Main.java:4: error: ';' expected
    BufferedReader br=new BufferedReader(new Input StreamReader(System.in));
                                                                          ^
2 errors
Language: Java

import java.io.*;
class UOAI{
public static void main(String[] args){
    BufferedReader br=
       new BufferReader(new Input StreamReader(System.in));
 
    String str=br.readine();
    if(str=='a'||str=='i'||str=='u'||str=='e'||str=='o')
         System.out.println("vowel")
   else System.out.println("consonant");
  }
}

Compiler output:
Main.java:5: error: '(' or '[' expected
       new BufferReader(new Input StreamReader(System.in));
                                  ^
Main.java:5: error: ';' expected
       new BufferReader(new Input StreamReader(System.in));
                                                         ^
Main.java:9: error: ';' expected
         System.out.println("vowel")
                                    ^
3 errors
Language: Java

public static void main(String[] args){
    BufferedReader br=
       new BufferReader(new Input StreamReader(System.in));
 
    String str=br.readine();
    if(str=='a'||str=='i'||str=='u'||str=='e'||str=='o')
         System.out.println("vowel")
   else System.out.println("consonant");
  }



Compiler output:
Main.java:1: error: unnamed classes are a preview feature and are disabled by default.
public static void main(String[] args){
              ^
  (use --enable-preview to enable unnamed classes)
Main.java:3: error: '(' or '[' expected
       new BufferReader(new Input StreamReader(System.in));
                                  ^
Main.java:3: error: ';' expected
       new BufferReader(new Input StreamReader(System.in));
                                                         ^
Main.java:7: error: ';' expected
         System.out.println("vowel")
                                    ^
4 errors
Language: C++

Class UOIAUAI{
 public static void main(String[] args){
    BufferedReader br=
       new BufferReader(new Input StreamReader(System.in));
 
    String str=br.readine();
    if(str=='a'||str=='i'||str=='u'||str=='e'||str=='o')
         System.out.println("vowel")
   else System.out.println("consonant");
  }
}


Compiler output:
a.cc:1:1: error: 'Class' does not name a type; did you mean 'class'?
    1 | Class UOIAUAI{
      | ^~~~~
      | class
Language: C++

Class UOIAUAI{
 public static void main(String[] args){
    BufferedReader br=
       new BufferReader(new Input StreamReaer(System.in));

    String str=br.readine();
    if(str=='a'||str=='i'||str=='u'||str=='e'||str=='o')
         System.out.println("vowel")
   else System.out.println("consonant");
  }
}

}

Compiler output:
a.cc:1:1: error: 'Class' does not name a type; did you mean 'class'?
    1 | Class UOIAUAI{
      | ^~~~~
      | class
a.cc:13:1: error: expected declaration before '}' token
   13 | }
      | ^
Language: C++

#include <bits/stdc++.h>
int main() {
char c; std::cin >> c;
std::cout << (std::string("aiueo").find(c) != string::npos ? "vowel" : "consonant") << "\n";
}

Compiler output:
a.cc: In function 'int main()':
a.cc:4:47: error: 'string' has not been declared
    4 | std::cout << (std::string("aiueo").find(c) != string::npos ? "vowel" : "consonant") << "\n";
      |                                               ^~~~~~
Language: C++

#include <bits/stdc++.h>
int main() {
char c; std::cin >> c;
std::cout << (string("aiueo").find(c) != string::npos ? "vowel" : "consonant") << "\n";
}

Compiler output:
a.cc: In function 'int main()':
a.cc:4:15: error: 'string' was not declared in this scope
    4 | std::cout << (string("aiueo").find(c) != string::npos ? "vowel" : "consonant") << "\n";
      |               ^~~~~~
a.cc:4:15: note: suggested alternatives:
In file included from /usr/include/c++/14/string:41,
                 from /usr/include/c++/14/bitset:52,
                 from /usr/include/x86_64-linux-gnu/c++/14/bits/stdc++.h:52,
                 from a.cc:1:
/usr/include/c++/14/bits/stringfwd.h:77:33: note:   'std::string'
   77 |   typedef basic_string<char>    string;
      |                                 ^~~~~~
/usr/include/c++/14/string:76:11: note:   'std::pmr::string'
   76 |     using string    = basic_string<char>;
      |           ^~~~~~
a.cc:4:42: error: 'string' is not a class, namespace, or enumeration
    4 | std::cout << (string("aiueo").find(c) != string::npos ? "vowel" : "consonant") << "\n";
      |                                          ^~~~~~
Language: C++

#include <bits/stdc++.h>
int main() {
char c; std::cin >> c;
std::cout << (("aiueo").find(c) != string::npos ? "vowel" : "consonant") << "\n";
}

Compiler output:
a.cc: In function 'int main()':
a.cc:4:25: error: request for member 'find' in '("aiueo")', which is of non-class type 'const char [6]'
    4 | std::cout << (("aiueo").find(c) != string::npos ? "vowel" : "consonant") << "\n";
      |                         ^~~~
a.cc:4:36: error: 'string' has not been declared
    4 | std::cout << (("aiueo").find(c) != string::npos ? "vowel" : "consonant") << "\n";
      |                                    ^~~~~~
Language: C++

#include <bits/stdc++.h>
int main() {
char c; std::cin >> c;
std::cout << ("aiueo".find(c) != string::npos ? "vowel" : "consonant") << "\n";
}

Compiler output:
a.cc: In function 'int main()':
a.cc:4:23: error: request for member 'find' in '"aiueo"', which is of non-class type 'const char [6]'
    4 | std::cout << ("aiueo".find(c) != string::npos ? "vowel" : "consonant") << "\n";
      |                       ^~~~
a.cc:4:34: error: 'string' has not been declared
    4 | std::cout << ("aiueo".find(c) != string::npos ? "vowel" : "consonant") << "\n";
      |                                  ^~~~~~
Language: C++

int main() {
char c; cin >> c;
std::cout << ("aiueo".find(c) != string::npos ? "vowel" : "consonant") << "\n";
}

Compiler output:
a.cc: In function 'int main()':
a.cc:2:9: error: 'cin' was not declared in this scope
    2 | char c; cin >> c;
      |         ^~~
a.cc:3:6: error: 'cout' is not a member of 'std'
    3 | std::cout << ("aiueo".find(c) != string::npos ? "vowel" : "consonant") << "\n";
      |      ^~~~
a.cc:1:1: note: 'std::cout' is defined in header '<iostream>'; this is probably fixable by adding '#include <iostream>'
  +++ |+#include <iostream>
    1 | int main() {
a.cc:3:23: error: request for member 'find' in '"aiueo"', which is of non-class type 'const char [6]'
    3 | std::cout << ("aiueo".find(c) != string::npos ? "vowel" : "consonant") << "\n";
      |                       ^~~~
a.cc:3:34: error: 'string' has not been declared
    3 | std::cout << ("aiueo".find(c) != string::npos ? "vowel" : "consonant") << "\n";
      |                                  ^~~~~~
Language: C++

#include <iostream>

using namespece std;

int main()
{
	char input;
	cin >> input;
	
	if(input == 'a' || input == 'e' || input == 'i' || input == 'o' || input == 'u')
	{
		cout << "vowel" << endl;
	}
	else
	{
		cout << "consonant" << endl;
	}
}


Compiler output:
a.cc:3:7: error: expected nested-name-specifier before 'namespece'
    3 | using namespece std;
      |       ^~~~~~~~~
a.cc: In function 'int main()':
a.cc:8:9: error: 'cin' was not declared in this scope; did you mean 'std::cin'?
    8 |         cin >> input;
      |         ^~~
      |         std::cin
In file included from a.cc:1:
/usr/include/c++/14/iostream:62:18: note: 'std::cin' declared here
   62 |   extern istream cin;           ///< Linked to standard input
      |                  ^~~
a.cc:12:17: error: 'cout' was not declared in this scope; did you mean 'std::cout'?
   12 |                 cout << "vowel" << endl;
      |                 ^~~~
      |                 std::cout
/usr/include/c++/14/iostream:63:18: note: 'std::cout' declared here
   63 |   extern ostream cout;          ///< Linked to standard output
      |                  ^~~~
a.cc:12:36: error: 'endl' was not declared in this scope; did you mean 'std::endl'?
   12 |                 cout << "vowel" << endl;
      |                                    ^~~~
      |                                    std::endl
In file included from /usr/include/c++/14/iostream:41:
/usr/include/c++/14/ostream:744:5: note: 'std::endl' declared here
  744 |     endl(basic_ostream<_CharT, _Traits>& __os)
      |     ^~~~
a.cc:16:17: error: 'cout' was not declared in this scope; did you mean 'std::cout'?
   16 |                 cout << "consonant" << endl;
      |                 ^~~~
      |                 std::cout
/usr/include/c++/14/iostream:63:18: note: 'std::cout' declared here
   63 |   extern ostream cout;          ///< Linked to standard output
      |                  ^~~~
a.cc:16:40: error: 'endl' was not declared in this scope; did you mean 'std::endl'?
   16 |                 cout << "consonant" << endl;
      |                                        ^~~~
      |                                        std::endl
/usr/include/c++/14/ostream:744:5: note: 'std::endl' declared here
  744 |     endl(basic_ostream<_CharT, _Traits>& __os)
      |     ^~~~
Language: C++

#include <iostream>

using namespece std;

int main()
{
	char input;
	cin >> input;
	
	if(input == 'a' || input == 'e' || 
	   input == 'i' || input == 'o' || input == 'u')
	{
		cout << "vowel" << endl;
	}
	else
	{
		cout << "consonant" << endl;
	}
}
	

Compiler output:
a.cc:3:7: error: expected nested-name-specifier before 'namespece'
    3 | using namespece std;
      |       ^~~~~~~~~
a.cc: In function 'int main()':
a.cc:8:9: error: 'cin' was not declared in this scope; did you mean 'std::cin'?
    8 |         cin >> input;
      |         ^~~
      |         std::cin
In file included from a.cc:1:
/usr/include/c++/14/iostream:62:18: note: 'std::cin' declared here
   62 |   extern istream cin;           ///< Linked to standard input
      |                  ^~~
a.cc:13:17: error: 'cout' was not declared in this scope; did you mean 'std::cout'?
   13 |                 cout << "vowel" << endl;
      |                 ^~~~
      |                 std::cout
/usr/include/c++/14/iostream:63:18: note: 'std::cout' declared here
   63 |   extern ostream cout;          ///< Linked to standard output
      |                  ^~~~
a.cc:13:36: error: 'endl' was not declared in this scope; did you mean 'std::endl'?
   13 |                 cout << "vowel" << endl;
      |                                    ^~~~
      |                                    std::endl
In file included from /usr/include/c++/14/iostream:41:
/usr/include/c++/14/ostream:744:5: note: 'std::endl' declared here
  744 |     endl(basic_ostream<_CharT, _Traits>& __os)
      |     ^~~~
a.cc:17:17: error: 'cout' was not declared in this scope; did you mean 'std::cout'?
   17 |                 cout << "consonant" << endl;
      |                 ^~~~
      |                 std::cout
/usr/include/c++/14/iostream:63:18: note: 'std::cout' declared here
   63 |   extern ostream cout;          ///< Linked to standard output
      |                  ^~~~
a.cc:17:40: error: 'endl' was not declared in this scope; did you mean 'std::endl'?
   17 |                 cout << "consonant" << endl;
      |                                        ^~~~
      |                                        std::endl
/usr/include/c++/14/ostream:744:5: note: 'std::endl' declared here
  744 |     endl(basic_ostream<_CharT, _Traits>& __os)
      |     ^~~~
Language: C++

#include <iostream>

using namespce std;

int main()
{
	char input;
	cin >> input;
	
	if(input == 'a' || input == 'e' || 
	   input == 'i' || input == 'o' || input == 'u')
	{
		cout << "vowel" << endl;
	}
	else
	{
		cout << "consonant" << endl;
	}
}
	

Compiler output:
a.cc:3:7: error: expected nested-name-specifier before 'namespce'
    3 | using namespce std;
      |       ^~~~~~~~
a.cc: In function 'int main()':
a.cc:8:9: error: 'cin' was not declared in this scope; did you mean 'std::cin'?
    8 |         cin >> input;
      |         ^~~
      |         std::cin
In file included from a.cc:1:
/usr/include/c++/14/iostream:62:18: note: 'std::cin' declared here
   62 |   extern istream cin;           ///< Linked to standard input
      |                  ^~~
a.cc:13:17: error: 'cout' was not declared in this scope; did you mean 'std::cout'?
   13 |                 cout << "vowel" << endl;
      |                 ^~~~
      |                 std::cout
/usr/include/c++/14/iostream:63:18: note: 'std::cout' declared here
   63 |   extern ostream cout;          ///< Linked to standard output
      |                  ^~~~
a.cc:13:36: error: 'endl' was not declared in this scope; did you mean 'std::endl'?
   13 |                 cout << "vowel" << endl;
      |                                    ^~~~
      |                                    std::endl
In file included from /usr/include/c++/14/iostream:41:
/usr/include/c++/14/ostream:744:5: note: 'std::endl' declared here
  744 |     endl(basic_ostream<_CharT, _Traits>& __os)
      |     ^~~~
a.cc:17:17: error: 'cout' was not declared in this scope; did you mean 'std::cout'?
   17 |                 cout << "consonant" << endl;
      |                 ^~~~
      |                 std::cout
/usr/include/c++/14/iostream:63:18: note: 'std::cout' declared here
   63 |   extern ostream cout;          ///< Linked to standard output
      |                  ^~~~
a.cc:17:40: error: 'endl' was not declared in this scope; did you mean 'std::endl'?
   17 |                 cout << "consonant" << endl;
      |                                        ^~~~
      |                                        std::endl
/usr/include/c++/14/ostream:744:5: note: 'std::endl' declared here
  744 |     endl(basic_ostream<_CharT, _Traits>& __os)
      |     ^~~~
Language: C++

use strict;
use warnings;

my $buf = <>;
chomp $buf;
if("aiueo" =~ m/$buf/){
	print "YES\n";
}else{
	print "NO\n";
}


Compiler output:
a.cc:1:1: error: 'use' does not name a type
    1 | use strict;
      | ^~~
a.cc:2:1: error: 'use' does not name a type
    2 | use warnings;
      | ^~~
a.cc:4:1: error: 'my' does not name a type
    4 | my $buf = <>;
      | ^~
a.cc:5:1: error: 'chomp' does not name a type
    5 | chomp $buf;
      | ^~~~~
a.cc:6:1: error: expected unqualified-id before 'if'
    6 | if("aiueo" =~ m/$buf/){
      | ^~
a.cc:8:2: error: expected unqualified-id before 'else'
    8 | }else{
      |  ^~~~
Language: Java

import java.util.*;

public class ProblemA {
	
	private static String VOWELS = "ueoai";
			
	public static void main(String[] args) {
		Scanner sc = new Scanner(System.in);
		String s = sc.nextLine();
		if (VOWELS.indexOf(s) > 0 ) {
			System.out.println("vowel");
		} else {
			System.out.println("consonant");
		}
		
	}
	
}


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

#include <iostream>

int main(){
 char c;
 cin>>c;
 if(c=='a'||c=='i'||c=='u'||c=='e'||c=='o') cout<<"vowel<<endl;
else cout<<"consonant"<<endl;}

Compiler output:
a.cc:6:51: warning: missing terminating " character
    6 |  if(c=='a'||c=='i'||c=='u'||c=='e'||c=='o') cout<<"vowel<<endl;
      |                                                   ^
a.cc:6:51: error: missing terminating " character
    6 |  if(c=='a'||c=='i'||c=='u'||c=='e'||c=='o') cout<<"vowel<<endl;
      |                                                   ^~~~~~~~~~~~~
a.cc: In function 'int main()':
a.cc:5:2: error: 'cin' was not declared in this scope; did you mean 'std::cin'?
    5 |  cin>>c;
      |  ^~~
      |  std::cin
In file included from a.cc:1:
/usr/include/c++/14/iostream:62:18: note: 'std::cin' declared here
   62 |   extern istream cin;           ///< Linked to standard input
      |                  ^~~
a.cc:6:45: error: 'cout' was not declared in this scope; did you mean 'std::cout'?
    6 |  if(c=='a'||c=='i'||c=='u'||c=='e'||c=='o') cout<<"vowel<<endl;
      |                                             ^~~~
      |                                             std::cout
/usr/include/c++/14/iostream:63:18: note: 'std::cout' declared here
   63 |   extern ostream cout;          ///< Linked to standard output
      |                  ^~~~
a.cc:7:1: error: expected primary-expression before 'else'
    7 | else cout<<"consonant"<<endl;}
      | ^~~~
Language: C++

#include <iostream.h>
int main()
{
char ch;
cin >> ch;
if(ch=='a' || ch=='e' || ch=='i' || ch=='o' || ch=='u')
    cout << "vowel";
else
   cout << "consonant";


return 0;
}

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

#include <iostream>
int main() {
char c;
cin >> c;
char *s = "aiueo";
for (int i = 0; i < 5; ++i) if (c != s[i]) {
cout << "consonant" << endl;
return 0;
}
cout << "vowel" << endl;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:4:1: error: 'cin' was not declared in this scope; did you mean 'std::cin'?
    4 | cin >> c;
      | ^~~
      | std::cin
In file included from a.cc:1:
/usr/include/c++/14/iostream:62:18: note: 'std::cin' declared here
   62 |   extern istream cin;           ///< Linked to standard input
      |                  ^~~
a.cc:5:11: warning: ISO C++ forbids converting a string constant to 'char*' [-Wwrite-strings]
    5 | char *s = "aiueo";
      |           ^~~~~~~
a.cc:7:1: error: 'cout' was not declared in this scope; did you mean 'std::cout'?
    7 | cout << "consonant" << endl;
      | ^~~~
      | std::cout
/usr/include/c++/14/iostream:63:18: note: 'std::cout' declared here
   63 |   extern ostream cout;          ///< Linked to standard output
      |                  ^~~~
a.cc:7:24: error: 'endl' was not declared in this scope; did you mean 'std::endl'?
    7 | cout << "consonant" << endl;
      |                        ^~~~
      |                        std::endl
In file included from /usr/include/c++/14/iostream:41:
/usr/include/c++/14/ostream:744:5: note: 'std::endl' declared here
  744 |     endl(basic_ostream<_CharT, _Traits>& __os)
      |     ^~~~
a.cc:10:1: error: 'cout' was not declared in this scope; did you mean 'std::cout'?
   10 | cout << "vowel" << endl;
      | ^~~~
      | std::cout
/usr/include/c++/14/iostream:63:18: note: 'std::cout' declared here
   63 |   extern ostream cout;          ///< Linked to standard output
      |                  ^~~~
a.cc:10:20: error: 'endl' was not declared in this scope; did you mean 'std::endl'?
   10 | cout << "vowel" << endl;
      |                    ^~~~
      |                    std::endl
/usr/include/c++/14/ostream:744:5: note: 'std::endl' declared here
  744 |     endl(basic_ostream<_CharT, _Traits>& __os)
      |     ^~~~
Language: C++

import java.util.*;

public class Main {
    public static void main(String[] args) {
        Scanner sc = new Scanner(System.in);
        String c = sc.next();
        char d = c.charAt(0);
        if(d=='a'||d=='i'||d=='u'||d=='e'||d=='o'){
            System.out.println("vowel");
        }else{
            System.out.println("consonant");
        }
    }
}

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:3:1: error: expected unqualified-id before 'public'
    3 | public class Main {
      | ^~~~~~
Language: Java

import java.util.*;
public class Main {
	public static void main(String[] args){
		Strine s = args[0];
    if(s.equals('a') || s.equals('i') || s.equals('u') || s.equals('e') || s.equals('o') ){
      System.out.println("vowel");
    }else{
      System.out.println("consonant");
    }
	}
}

Compiler output:
Main.java:4: error: cannot find symbol
		Strine s = args[0];
		^
  symbol:   class Strine
  location: class Main
1 error
Language: Java

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


public class atc {

	public static void main(String[] args) {
		Scanner sc=new Scanner(System.in);
		List<String> moji = new ArrayList<String>();
		moji.add("a");
		moji.add("i");
		moji.add("u");
		moji.add("e");
		moji.add("o");
		String c=sc.next();
		if(moji.contains(c))System.out.println("vowel");
		else System.out.println("consonant");
		
		
		
	
	}
	
}

Compiler output:
Main.java:6: error: class atc is public, should be declared in a file named atc.java
public class atc {
       ^
1 error
Language: Java

import java.util.*;
public class Main {
	public static void main(String[] args){
		Strine s = args[0];
    if(s.equals('a') || s.equals('i') || s.equals('u') || s.equals('e') || s.equals('o') ||){
      System.out.println("vowel");
    }else{
      System.out.println("consonant");
    }
	}
}

Compiler output:
Main.java:5: error: illegal start of expression
    if(s.equals('a') || s.equals('i') || s.equals('u') || s.equals('e') || s.equals('o') ||){
                                                                                           ^
1 error
Language: C++

#include<iostream>
using namespace std;
int main(){
int W,H;
char C[101][101]={};
cin>>H>>W;
for(int i=0;i<H;i++)
 for(int j=0;j<W;j++)
  cin>>C[i][j];

for(int i=H;i<2H;i++)
 for(int j=0;j<W;j++)
  C[i][j]=C[(i+1)/2][j];

for(int i=0;i<2H;i++){
 for(int j=0;j<W;j++)
  cout<<C[i][j];
  cout<<endl;
}
return 0;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:11:15: error: unable to find numeric literal operator 'operator""H'
   11 | for(int i=H;i<2H;i++)
      |               ^~
a.cc:15:15: error: unable to find numeric literal operator 'operator""H'
   15 | for(int i=0;i<2H;i++){
      |               ^~
Language: Java

import java.util.*;

public class Main{
	public static void main(String[] args){
		Scanner sc = new Scanner(System.in);
		char a = sc.next().charAr(0);
		if( (a == 'a')||(a=='i')||(a=='u')||(a=='e')||(a=='o')){
			System.out.println("vowel");
		}else{
			System.out.println("consonent");
		}
	return;
	}
}

Compiler output:
Main.java:6: error: cannot find symbol
		char a = sc.next().charAr(0);
		                  ^
  symbol:   method charAr(int)
  location: class String
1 error
Language: C

int main()
{
 char a;
 scanf("%c",a);
 if(c=='a' || c=='e' || c=='i' || c=='o' || c=='u')
  printf("vowel\n");
 else
  printf("consonant\n");
 return 0;
}

Compiler output:
main.c: In function 'main':
main.c:4:2: error: implicit declaration of function 'scanf' [-Wimplicit-function-declaration]
    4 |  scanf("%c",a);
      |  ^~~~~
main.c:1:1: note: include '<stdio.h>' or provide a declaration of 'scanf'
  +++ |+#include <stdio.h>
    1 | int main()
main.c:4:2: warning: incompatible implicit declaration of built-in function 'scanf' [-Wbuiltin-declaration-mismatch]
    4 |  scanf("%c",a);
      |  ^~~~~
main.c:4:2: note: include '<stdio.h>' or provide a declaration of 'scanf'
main.c:5:5: error: 'c' undeclared (first use in this function)
    5 |  if(c=='a' || c=='e' || c=='i' || c=='o' || c=='u')
      |     ^
main.c:5:5: note: each undeclared identifier is reported only once for each function it appears in
main.c:6:3: error: implicit declaration of function 'printf' [-Wimplicit-function-declaration]
    6 |   printf("vowel\n");
      |   ^~~~~~
main.c:6:3: note: include '<stdio.h>' or provide a declaration of 'printf'
main.c:6:3: warning: incompatible implicit declaration of built-in function 'printf' [-Wbuiltin-declaration-mismatch]
main.c:6:3: note: include '<stdio.h>' or provide a declaration of 'printf'
main.c:8:3: warning: incompatible implicit declaration of built-in function 'printf' [-Wbuiltin-declaration-mismatch]
    8 |   printf("consonant\n");
      |   ^~~~~~
main.c:8:3: note: include '<stdio.h>' or provide a declaration of 'printf'
Language: C

#include <stdio.h>
int main(){
    char c;
    scanf("%s",c);

    for(i=0;i<26;i++){
        if(c='a'&&c='i'&&c='u'&&c='e'&&c='o'){
            printf("vowel\n");
        }else{
            printf("vowel\n");
        }
    }
}


Compiler output:
main.c: In function 'main':
main.c:6:9: error: 'i' undeclared (first use in this function)
    6 |     for(i=0;i<26;i++){
      |         ^
main.c:6:9: note: each undeclared identifier is reported only once for each function it appears in
main.c:7:41: error: lvalue required as left operand of assignment
    7 |         if(c='a'&&c='i'&&c='u'&&c='e'&&c='o'){
      |                                         ^
Language: C

#include <stdio.h>


int main(void)
{
	char ch;
	scanf("%c",ch)

	if(ch == ('a'||'e'||'i'||'o'||'u'))
		printf("vowel\n");
	else
		printf("consonant\n");
	return 0;
}

Compiler output:
main.c: In function 'main':
main.c:7:23: error: expected ';' before 'if'
    7 |         scanf("%c",ch)
      |                       ^
      |                       ;
    8 | 
    9 |         if(ch == ('a'||'e'||'i'||'o'||'u'))
      |         ~~             
main.c:11:9: error: 'else' without a previous 'if'
   11 |         else
      |         ^~~~
Language: C++

using System;

public class Test
{
	public static void Main()
	{
		string line;
		line = Console.ReadLine();
		char c = Convert.ToChar(line);
		if(c == 'a'||c=='i'||c=='u'||c=='e'||c=='o'){
			Console.WriteLine("vowel");
		} else {
			Console.WriteLine("consonant");
		}
	}
}

Compiler output:
a.cc:1:7: error: expected nested-name-specifier before 'System'
    1 | using System;
      |       ^~~~~~
a.cc:3:1: error: expected unqualified-id before 'public'
    3 | public class Test
      | ^~~~~~
Language: C++

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


int main() {

    char s;
    cin>>s;
    if(s=='a'or s=='e' or s=='i' or s=='o' or s=='u' ) cout<<"vowel"<<endl;
    else cout<<"consonant"<<endl;


    return 0;
}


Compiler output:
a.cc: In function 'int main()':
a.cc:13:11: error: unable to find character literal operator 'operator""or' with 'char' argument
   13 |     if(s=='a'or s=='e' or s=='i' or s=='o' or s=='u' ) cout<<"vowel"<<endl;
      |           ^~~~~
a.cc:13:16: error: expected ')' before 's'
   13 |     if(s=='a'or s=='e' or s=='i' or s=='o' or s=='u' ) cout<<"vowel"<<endl;
      |       ~        ^~
      |                )
Language: C++

#include <stdio.h>

int main(){
  int c;
  c = getc();
    switch(c){
      case 'a':
            case 'i':
                  case 'u':
                        case 'e':
                              case 'o':
                              printf("vowel");
                              break;
      default:
        printf("consonant");
  }
}

Compiler output:
a.cc: In function 'int main()':
a.cc:5:11: error: too few arguments to function 'int getc(FILE*)'
    5 |   c = getc();
      |       ~~~~^~
In file included from a.cc:1:
/usr/include/stdio.h:576:12: note: declared here
  576 | extern int getc (FILE *__stream) __nonnull ((1));
      |            ^~~~
Language: C++

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

using namespace std;
#define ll long long


int main_()
{
    // Value
    string c = "";
    string result;

    // Input
    cin >> c;
    //cin>>N>>x;
    //ll size = 2*N-1;

    // Cal
    if(c=="a" || c=="i" || c=="u" || c=="e" || c=="o"){
        result = "vowel";
    }else{
        result = "consonant";
    }

    // Output
    cout << result << endl;

    // Fin
    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>
using namespace std;

int main(){
	stirng c;

	cin >>c;

	if(c == "a")
		cout <<"vowel" <<endl;
	else if(c == "i")
		cout <<"vowel" <<endl;
	else if(c == "u")
		cout <<"vowel" <<endl;
	else if(c == "e")
		cout <<"vowel" <<endl;
	else if(c == "o")
		cout <<"vowel" <<endl;
	else
		cout <<"consonant" <<endl;



	return 0;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:5:9: error: 'stirng' was not declared in this scope
    5 |         stirng c;
      |         ^~~~~~
a.cc:7:15: error: 'c' was not declared in this scope
    7 |         cin >>c;
      |               ^
Language: Java

import java.util.Scanner;

public class Main01 {
	
	public static void main(String[] args) {
		new Main01().solve(new Scanner(System.in));
	}
	
	public void solve(Scanner sc) {
		String c = sc.next();
		if(c.matches("[aeiou]")) {
			System.out.println("vowel");
		} else {
			System.out.println("consonant");
		}
	}
}


Compiler output:
Main.java:3: error: class Main01 is public, should be declared in a file named Main01.java
public class Main01 {
       ^
1 error
Language: C++

#include <bits/stdc++.h>
using namespace std;
int main(){
char c;
cin >> c;
if(c == 'a' || c == 'i || c == 'u' || c == 'e' || c == 'o')cout << "vowel" << endl;
else cout << "consonaut" << endl;
return 0;
}


Compiler output:
a.cc:6:21: warning: multi-character literal with 10 characters exceeds 'int' size of 4 bytes
    6 | if(c == 'a' || c == 'i || c == 'u' || c == 'e' || c == 'o')cout << "vowel" << endl;
      |                     ^~~~~~~~~~~~~
a.cc:6:34: warning: multi-character literal with 9 characters exceeds 'int' size of 4 bytes
    6 | if(c == 'a' || c == 'i || c == 'u' || c == 'e' || c == 'o')cout << "vowel" << endl;
      |                                  ^~~~~~~~~~~~
a.cc:6:46: warning: multi-character literal with 9 characters exceeds 'int' size of 4 bytes
    6 | if(c == 'a' || c == 'i || c == 'u' || c == 'e' || c == 'o')cout << "vowel" << endl;
      |                                              ^~~~~~~~~~~~
a.cc:6:58: warning: missing terminating ' character
    6 | if(c == 'a' || c == 'i || c == 'u' || c == 'e' || c == 'o')cout << "vowel" << endl;
      |                                                          ^
a.cc:6:58: error: missing terminating ' character
    6 | if(c == 'a' || c == 'i || c == 'u' || c == 'e' || c == 'o')cout << "vowel" << endl;
      |                                                          ^~~~~~~~~~~~~~~~~~~~~~~~~~
a.cc: In function 'int main()':
a.cc:6:21: error: unable to find character literal operator 'operator""u' with 'int' argument
    6 | if(c == 'a' || c == 'i || c == 'u' || c == 'e' || c == 'o')cout << "vowel" << endl;
      |                     ^~~~~~~~~~~~~
a.cc:8:1: error: expected primary-expression before 'return'
    8 | return 0;
      | ^~~~~~
a.cc:7:34: error: expected ')' before 'return'
    7 | else cout << "consonaut" << endl;
      |                                  ^
      |                                  )
    8 | return 0;
      | ~~~~~~                            
a.cc:6:3: note: to match this '('
    6 | if(c == 'a' || c == 'i || c == 'u' || c == 'e' || c == 'o')cout << "vowel" << endl;
      |   ^
Language: C++

#include <ioostream>
using namespace std;

int main(){
	stirng c;

	cin >>c;

	if(c == "a")
		cout <<"vowel" <<endl;
	else if(c == "i")
		cout <<"vowel" <<endl;
	else if(c == "u")
		cout <<"vowel" <<endl;
	else if(c == "e")
		cout <<"vowel" <<endl;
	else if(c == "o")
		cout <<"vowel" <<endl;
	else
		cout <<"consonant" <<endl;



	return 0;
}

Compiler output:
a.cc:1:10: fatal error: ioostream: No such file or directory
    1 | #include <ioostream>
      |          ^~~~~~~~~~~
compilation terminated.
Language: Java

import java.util.Scanner;
import java.util.ArrayList;
import java.util.HashMap;
import java.lang.Integer;
import java.lang.StringBuilder;
import java.lang.Math;

public class Main {
  public static void main(String[] args) {
    Scanner in = new Scanner(System.in);
    String c = in.next();

    switch (c) {
      case "a":
      case "i":
      case "e":
      case "o":
      case "u":
          System.out.println("vowel");
          break;
      default:
          System.out.println("consonant");
    }
  }
}
o

Compiler output:
Main.java:26: error: reached end of file while parsing
o
^
1 error
Language: C++


1.#include <bits/stdc++.h>
2.using namespace std;
3.int main(){
4.char c;
5.cin >> c;
6.if(c == 'a' || c == 'i || c == 'u' || c == 'e' || c == 'o')cout << "vowel" << endl;
7.else cout << "consonaut" << endl;
8.return 0;
9.}



Compiler output:
a.cc:2:3: error: stray '#' in program
    2 | 1.#include <bits/stdc++.h>
      |   ^
a.cc:7:23: warning: multi-character literal with 10 characters exceeds 'int' size of 4 bytes
    7 | 6.if(c == 'a' || c == 'i || c == 'u' || c == 'e' || c == 'o')cout << "vowel" << endl;
      |                       ^~~~~~~~~~~~~
a.cc:7:36: warning: multi-character literal with 9 characters exceeds 'int' size of 4 bytes
    7 | 6.if(c == 'a' || c == 'i || c == 'u' || c == 'e' || c == 'o')cout << "vowel" << endl;
      |                                    ^~~~~~~~~~~~
a.cc:7:48: warning: multi-character literal with 9 characters exceeds 'int' size of 4 bytes
    7 | 6.if(c == 'a' || c == 'i || c == 'u' || c == 'e' || c == 'o')cout << "vowel" << endl;
      |                                                ^~~~~~~~~~~~
a.cc:7:60: warning: missing terminating ' character
    7 | 6.if(c == 'a' || c == 'i || c == 'u' || c == 'e' || c == 'o')cout << "vowel" << endl;
      |                                                            ^
a.cc:7:60: error: missing terminating ' character
    7 | 6.if(c == 'a' || c == 'i || c == 'u' || c == 'e' || c == 'o')cout << "vowel" << endl;
      |                                                            ^~~~~~~~~~~~~~~~~~~~~~~~~~
a.cc:8:1: error: exponent has no digits
    8 | 7.else cout << "consonaut" << endl;
      | ^~~~~~
a.cc:2:1: error: expected unqualified-id before numeric constant
    2 | 1.#include <bits/stdc++.h>
      | ^~
a.cc:4:1: error: expected unqualified-id before numeric constant
    4 | 3.int main(){
      | ^~~~~
Language: C++

#include <bits/stdc++.h>
using namespace std;
int main(){
char c;
cin >> c;
if(c == 'a' c == 'i || c == 'u' || c == 'e' || c == 'o')cout << "vowel" << endl;
else cout << "consonaut" << endl;
return 0;
}

Compiler output:
a.cc:6:18: warning: multi-character literal with 10 characters exceeds 'int' size of 4 bytes
    6 | if(c == 'a' c == 'i || c == 'u' || c == 'e' || c == 'o')cout << "vowel" << endl;
      |                  ^~~~~~~~~~~~~
a.cc:6:31: warning: multi-character literal with 9 characters exceeds 'int' size of 4 bytes
    6 | if(c == 'a' c == 'i || c == 'u' || c == 'e' || c == 'o')cout << "vowel" << endl;
      |                               ^~~~~~~~~~~~
a.cc:6:43: warning: multi-character literal with 9 characters exceeds 'int' size of 4 bytes
    6 | if(c == 'a' c == 'i || c == 'u' || c == 'e' || c == 'o')cout << "vowel" << endl;
      |                                           ^~~~~~~~~~~~
a.cc:6:55: warning: missing terminating ' character
    6 | if(c == 'a' c == 'i || c == 'u' || c == 'e' || c == 'o')cout << "vowel" << endl;
      |                                                       ^
a.cc:6:55: error: missing terminating ' character
    6 | if(c == 'a' c == 'i || c == 'u' || c == 'e' || c == 'o')cout << "vowel" << endl;
      |                                                       ^~~~~~~~~~~~~~~~~~~~~~~~~~
a.cc: In function 'int main()':
a.cc:6:12: error: expected ';' before 'c'
    6 | if(c == 'a' c == 'i || c == 'u' || c == 'e' || c == 'o')cout << "vowel" << endl;
      |            ^~
      |            ;
a.cc:8:1: error: expected primary-expression before 'return'
    8 | return 0;
      | ^~~~~~
a.cc:7:34: error: expected ')' before 'return'
    7 | else cout << "consonaut" << endl;
      |                                  ^
      |                                  )
    8 | return 0;
      | ~~~~~~                            
a.cc:6:3: note: to match this '('
    6 | if(c == 'a' c == 'i || c == 'u' || c == 'e' || c == 'o')cout << "vowel" << endl;
      |   ^
Language: C++

#include <bits/stdc++.h>

using namespace std;

typedef long long int ll;

inline void deBugMode() {
    #ifndef ONLINE_JUDGE
    freopen("debug.in", "r", stdin);
    #endif // ONLINE_JUDGE
}

inline void optimizeIt() {
    ios::sync_with_stdio(false);
    cin.tie(NULL);
}

inline int ABS(const int &x) {
    return max(x, -x);
}

const int NMax = 1e5 + 5;
const int LIM = 1e5;
const int MOD = 1000000007;

int main(){
    //deBugMode();
    optimizeIt();

    char c;
    cin >> c;

    if(c == 'a' || c == 'e' || c == 'i' || c == 'o' || c == 'u') {
        cout << "vowel"
    } else {
        cout << "consonant";
    }

    return 0;

}


Compiler output:
a.cc: In function 'int main()':
a.cc:34:24: error: expected ';' before '}' token
   34 |         cout << "vowel"
      |                        ^
      |                        ;
   35 |     } else {
      |     ~
Language: C

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

typedef long long ll;

#define rep(i, n) for (int i = 0; i < (int)(n); i++)

int main() { 
    int H, W;
    string inp;
    vector<string> C(H);
    cin >> H >> W;
    rep(i, H){
        cin >> inp;
        C.push_back(inp);
    }
    rep(i, H) {
        cout << C.at(i) << "\n";
        cout << C.at(i) << "\n";
    }

    return 0;
}


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>
#define PI 3.1415926535897932
#define _GLIBCXX_DEBUG
using namespace std;
int main() {
  
  int H,W;
  cin>>H>>W;
  
  vector<string> vec(W);
  for(int j=0;j<W;j++){
    cin>>vec[j];
  }
  
  for(int i=0;i<H;j++){
    cout<<vec[i]<<endl;
    cout<<vec[i]<<endl;
  }
}

Compiler output:
a.cc: In function 'int main()':
a.cc:15:19: error: 'j' was not declared in this scope
   15 |   for(int i=0;i<H;j++){
      |                   ^
Language: C++

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

//type
#define ll long long
typedef pair<int, int> P;
//定数
#define INF 1000000000000 //10^12:∞
#define MOD 1000000007    //10^9+7:合同式の法
#define MAXR 100000       //10^5:配列の最大のrange
//略記
#define PB push_back //挿入
#define MP make_pair //pairのコンストラクタ
#define F first      //pairの一つ目の要素
#define S second     //pairの二つ目の要素
#define Z class
// OTHER
// xの二乗を返す (関数テンプレート版)
template <typename T>
T square(T x) { return x * x; }
template <class T>
T GCD(T a, T b)
{
    T r;
    while (a)
        r = b, b = a, a = r % a;
    return b;
}
template <class T>
T LCM(T a, T b) { return a / GCD(a, b) * b; }

#define chmax(x, y) (x = max(x, y))
#define chmin(x, y) (x = min(x, y))
// loop
#define rep(i, n) for (int i = 0; i < (n); i++)
#define repd(i, n) for (ll i = n; i >= 0; i--)
#define FOR(i, a, b) for (ll i = a; i <= (b); i++)
#define FORD(i, a, b) for (ll i = a; i >= (b); i--)
#define FORA(i, I) for (const auto &i : I)

// vector
#define ALL(x) x.begin(), x.end()
typedef vector<int> vi;
typedef vector<string> vs;
typedef vector<vi> vvi;
typedef vector<ll> vl;
#define ERASE(x) x.erase(unique(ALL(x)), x.end()); // erase same elements
#define VEC(type, c, n)     \
    std::vector<type> c(n); \
    for (auto &i : c)       \
        std::cin >> i;

// input
#define INIT                          \
    std::ios::sync_with_stdio(false); \
    std::cin.tie(0);
#define VAR(type, ...) \
    type __VA_ARGS__;  \
    MACRO_VAR_Scan(__VA_ARGS__);

// output
template <typename T>
void MACRO_OUT(const T t) { std::cout << t; }

#define OUT(...) MACRO_OUT(__VA_ARGS__);
#define SP std::cout << " ";
#define TAB std::cout << "\t";
#define BR std::cout << "\n";
#define ENDL std::cout << std::endl;

#define YES() printf("YES\n")
#define NO() printf("NO\n")
#define isYES(x) printf("%s\n", (x) ? "YES" : "NO")
#define Yes() printf("Yes\n")
#define No() printf("No\n")
#define ln cout << '\n'
template <Z A>
void pr(A a)
{
    cout << a;
    ln;
}
template <Z A, Z B>
void pr(A a, B b)
{
    cout << a << ' ';
}

int ans = 0;
bool check = 0;
string s, t;
int N = 3;
vector<int> v(N);
int a, b, c, d, n;
int x, y;
int sum;
char ch;

// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
// cout << (conditon ? (result:  == 1 ): (==0)) << endl; <- output result of if
// long long 型が表せる値の上限はおよそ 9 × 10＾18 です．
int main()
{

    // abc 049 B
    cin >> H >> W;
    for (int i = 0; i < H; i++)
    {
        cin >> s;
        cout << s << endl
             << s << endl;
    }
    return 0;
}


Compiler output:
a.cc: In function 'int main()':
a.cc:107:12: error: 'H' was not declared in this scope
  107 |     cin >> H >> W;
      |            ^
a.cc:107:17: error: 'W' was not declared in this scope
  107 |     cin >> H >> W;
      |                 ^
Language: C++

#include<bits/stdc++.h>
using namespace std;
int main() {
  int h,w;cin. >> h >> w;
  for(int i = 0;i<h;i++) {
    string s;cin >> s;
    cout << s << "\n" << s << "\n";
  }
  return 0;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:4:16: error: expected unqualified-id before '>>' token
    4 |   int h,w;cin. >> h >> w;
      |                ^~
Language: C++

            #include<iostream>
            #include<vector>
            #include<string> 
            using namespace std;
            int main(){
              int a,b,i,j;
              cin>>a>>b;
              vector <char>c;
              for(i=0;i<a;i++){
                string s;
                cin>>s;
                for(j=0;j<b;j++)
                  c[i][j]=s[j];
              }
              for(i=0;i<a;i++){
                for(j=0;j<b;j++){
                  cout<<c[i][j];
                }
              cout<<endl;
              for(j=0;j<b;j++){
                  cout<<c[i][j];
                }
              cout<<endl;
            }
              return 0;
            }


Compiler output:
a.cc: In function 'int main()':
a.cc:13:23: error: invalid types '__gnu_cxx::__alloc_traits<std::allocator<char>, char>::value_type {aka char}[int]' for array subscript
   13 |                   c[i][j]=s[j];
      |                       ^
a.cc:17:29: error: invalid types '__gnu_cxx::__alloc_traits<std::allocator<char>, char>::value_type {aka char}[int]' for array subscript
   17 |                   cout<<c[i][j];
      |                             ^
a.cc:21:29: error: invalid types '__gnu_cxx::__alloc_traits<std::allocator<char>, char>::value_type {aka char}[int]' for array subscript
   21 |                   cout<<c[i][j];
      |                             ^
Language: C++

#include<iostream>
        #include<vector>
        #include<string> 
using namespace std;
        int main(){
          int a,b,i,j;
          cin>>a>>b;
          vector <char>c;
          for(i=0;i<a;i++){
            string s;
            cin>>s;
            for(j=0;j<b;j++0)
              c[i][j]=s[j];
          }
          for(i=0;i<a;i++)
            for(j=0;j<b;j++){
              cout<<c[i][j];
            }
          cout<<endl;

Compiler output:
a.cc: In function 'int main()':
a.cc:12:28: error: expected ')' before numeric constant
   12 |             for(j=0;j<b;j++0)
      |                ~           ^
      |                            )
a.cc:12:29: error: expected ';' before ')' token
   12 |             for(j=0;j<b;j++0)
      |                             ^
      |                             ;
a.cc:17:25: error: invalid types '__gnu_cxx::__alloc_traits<std::allocator<char>, char>::value_type {aka char}[int]' for array subscript
   17 |               cout<<c[i][j];
      |                         ^
a.cc:19:22: error: expected '}' at end of input
   19 |           cout<<endl;
      |                      ^
a.cc:5:19: note: to match this '{'
    5 |         int main(){
      |                   ^
Language: C++

        #include<iostream>
        #include<vector>
        #include<string> 
using namespace std;
        int main(){
          int a,b,i;
          cin>>a>>b;
          vector <char>c;
          for(i=0;i<a;i++){
            string s;
            cin>>s;
            for(j=0;j<b;j++0)
              c[i][j]=s[j];
          }
          for(i=0;i<a;i++)
            for(j=0;j<b;j++){
              cout<<c[i][j];
            }
          cout<<endl;
          for(j=0;j<b;j++){
              cout<<c[i][j];
            }
          cout<<endl;
        }
        return 0;
        }

Compiler output:
a.cc: In function 'int main()':
a.cc:12:17: error: 'j' was not declared in this scope
   12 |             for(j=0;j<b;j++0)
      |                 ^
a.cc:12:28: error: expected ')' before numeric constant
   12 |             for(j=0;j<b;j++0)
      |                ~           ^
      |                            )
a.cc:12:29: error: expected ';' before ')' token
   12 |             for(j=0;j<b;j++0)
      |                             ^
      |                             ;
a.cc:16:17: error: 'j' was not declared in this scope
   16 |             for(j=0;j<b;j++){
      |                 ^
a.cc:20:15: error: 'j' was not declared in this scope
   20 |           for(j=0;j<b;j++){
      |               ^
a.cc: At global scope:
a.cc:25:9: error: expected unqualified-id before 'return'
   25 |         return 0;
      |         ^~~~~~
a.cc:26:9: error: expected declaration before '}' token
   26 |         }
      |         ^