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

#include<bits/stdc++.h>
using namespace std;
int main(){
	string s;
    cin>> s;
    if(isupper(s)){
    	cout << "A" << endl;
    }
    else cout <<"a" <<endl;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:6:15: error: no matching function for call to 'isupper(std::string&)'
    6 |     if(isupper(s)){
      |        ~~~~~~~^~~
In file included from /usr/include/c++/14/bits/basic_ios.h:37,
                 from /usr/include/c++/14/ios:46,
                 from /usr/include/c++/14/istream:40,
                 from /usr/include/c++/14/sstream:40,
                 from /usr/include/c++/14/complex:45,
                 from /usr/include/c++/14/ccomplex:39,
                 from /usr/include/x86_64-linux-gnu/c++/14/bits/stdc++.h:127,
                 from a.cc:1:
/usr/include/c++/14/bits/locale_facets.h:2631:5: note: candidate: 'template<class _CharT> bool std::isupper(_CharT, const locale&)'
 2631 |     isupper(_CharT __c, const locale& __loc)
      |     ^~~~~~~
/usr/include/c++/14/bits/locale_facets.h:2631:5: note:   candidate expects 2 arguments, 1 provided
In file included from /usr/include/c++/14/cctype:42,
                 from /usr/include/x86_64-linux-gnu/c++/14/bits/stdc++.h:35:
/usr/include/ctype.h:117:1: note: candidate: 'int isupper(int)'
  117 | __exctype (isupper);
      | ^~~~~~~~~
/usr/include/ctype.h:117:1: note:   no known conversion for argument 1 from 'std::string' {aka 'std::__cxx11::basic_string<char>'} to 'int'
  117 | __exctype (isupper);
      | ^~~~~~~~~
Language: C

#include <bits/stdc++.h>
#include <iostream>

int main(void)
{
    using namespace std;
    char a;
    cin >> a;
    cout << (isupper(a) ? 'A' : 'a') << endl;    
}

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

#include <bits/stdc++.h>
using namespace std;
int main(){
  string x;
  cin>>x;
  if (x=="a"or x=="b" x=="c"or x=="d"or x=="e"or x=="f" orx=="g"or x=="h"or x=="i"or x=="j"or x=="k"or x=="l"or x=="m"or x=="n"or x=="o"or x=="p"or x=="q"or x=="r"or x=="s"or x=="t"or x=="u"or x=="v"or x=="w"or x=="x"or x=="y"or x=="z"){
    cout<<"a"<<endl;}
  else {cout<<"A"<<endl;}
}

Compiler output:
a.cc: In function 'int main()':
a.cc:6:10: error: unable to find string literal operator 'operator""or' with 'const char [2]', 'long unsigned int' arguments
    6 |   if (x=="a"or x=="b" x=="c"or x=="d"or x=="e"or x=="f" orx=="g"or x=="h"or x=="i"or x=="j"or x=="k"or x=="l"or x=="m"or x=="n"or x=="o"or x=="p"or x=="q"or x=="r"or x=="s"or x=="t"or x=="u"or x=="v"or x=="w"or x=="x"or x=="y"or x=="z"){
      |          ^~~~~
a.cc:6:15: error: expected ')' before 'x'
    6 |   if (x=="a"or x=="b" x=="c"or x=="d"or x=="e"or x=="f" orx=="g"or x=="h"or x=="i"or x=="j"or x=="k"or x=="l"or x=="m"or x=="n"or x=="o"or x=="p"or x=="q"or x=="r"or x=="s"or x=="t"or x=="u"or x=="v"or x=="w"or x=="x"or x=="y"or x=="z"){
      |      ~        ^~
      |               )
Language: Java

import java.util.*;
import java.lang.*;
import java.math.*;
import java.io.*;
class Main{
	public static void main(String[] args) {
		InputStream inputStream = System.in;
        OutputStream outputStream = System.out;
        Scanner in = new Scanner(inputStream);
        PrintWriter out = new PrintWriter(outputStream);
      	char c=nextChar();
		if(c>=65 && c<=90)
			System.out.println('A');
		else
			System.out.println('a');
	} 
}

Compiler output:
Main.java:11: error: cannot find symbol
      	char c=nextChar();
      	       ^
  symbol:   method nextChar()
  location: class Main
1 error
Language: C++

#pragma GCC optimize("Ofast")
#pragma GCC optimize ("unroll-loops")
#pragma GCC target("sse,sse2,sse3,ssse3,sse4,popcnt,abm,mmx,avx,tune=native")
#include<bits/stdc++.h>
typedef long long     ll;
#define fast          ios_base::sync_with_stdio(false);cin.tie(NULL);cout.tie(NULL);
#define fr            first
#define sc            second
#define com(i,n)      for(int i=0;i<n;i++)
#define dom(i,n)      for(int i=1;i<=n;i++)
#define mom(i,n)      for(int i=n;i>=0;i--)
#define sortI(a,n)    sort(a,a+n)
#define sortD(a,n)    sort(a,a+n,greater<int>())
#define sortvi(a)     sort(a.begin(),a.end())
#define sortvd(a)     sort(a.begin(),a.end(),greater<int>())
#define sumall(a,x)   accumulate(a.begin(),a.end(),x)
#define pi            3.14159265358979323846264338327950
using namespace std;
map<ll,ll>mp;
int main()
{
    string s;
    cin>>s;
    if(s[0]<96)
          cout << "A\n";
     else
          cout << "a\n";
}


Compiler output:
In file included from /usr/include/c++/14/string:43,
                 from /usr/include/c++/14/bitset:52,
                 from /usr/include/x86_64-linux-gnu/c++/14/bits/stdc++.h:52,
                 from a.cc:4:
/usr/include/c++/14/bits/allocator.h: In destructor 'std::__cxx11::basic_string<char>::_Alloc_hider::~_Alloc_hider()':
/usr/include/c++/14/bits/allocator.h:182:7: error: inlining failed in call to 'always_inline' 'std::allocator< <template-parameter-1-1> >::~allocator() noexcept [with _Tp = char]': target specific option mismatch
  182 |       ~allocator() _GLIBCXX_NOTHROW { }
      |       ^
In file included from /usr/include/c++/14/string:54:
/usr/include/c++/14/bits/basic_string.h:186:14: note: called from here
  186 |       struct _Alloc_hider : allocator_type // TODO check __is_final
      |              ^~~~~~~~~~~~
Language: Java

import java.util.*;
public class Main {
	public static void main(String[] args){
		Scanner sc = new Scanner(System.in);
		String s = sc.next();
		
        String str[26] = {"a","b","c","d","e","f","g","h","i","j","k","l","m","n","o","p","q","r","s","t","u","v","w","x","y","z"};
        for(int i=0;i<26;i++){if(s.equals(str[i])){System.out.println("a");}
                              else{if(i==25){System.out.println("A");}}
                             }
		
		
	}
}


Compiler output:
Main.java:7: error: ']' expected
        String str[26] = {"a","b","c","d","e","f","g","h","i","j","k","l","m","n","o","p","q","r","s","t","u","v","w","x","y","z"};
                   ^
Main.java:7: error: not a statement
        String str[26] = {"a","b","c","d","e","f","g","h","i","j","k","l","m","n","o","p","q","r","s","t","u","v","w","x","y","z"};
                          ^
Main.java:7: error: ';' expected
        String str[26] = {"a","b","c","d","e","f","g","h","i","j","k","l","m","n","o","p","q","r","s","t","u","v","w","x","y","z"};
                             ^
3 errors
Language: C++

#include <iostream>
using namespace std;

int main() {
	char ch;
	cin>>ch;
	if(ch>=65&&ch<=90)
	cout<<"A"<<"\n";
	else if()
	cout<<"a"<<"\n";
	// your code goes here
	return 0;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:9:17: error: expected primary-expression before ')' token
    9 |         else if()
      |                 ^
Language: C++

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

int main() {
  char c
cin >> c;
  if ('A' <= c && c <= 'Z') {
    cout << "YES" << endl;
  }
  else {
    cout << "NO" << endl;
  }
}


Compiler output:
a.cc: In function 'int main()':
a.cc:6:1: error: expected initializer before 'cin'
    6 | cin >> c;
      | ^~~
a.cc:7:14: error: 'c' was not declared in this scope
    7 |   if ('A' <= c && c <= 'Z') {
      |              ^
Language: C++

#include <bits/stdc++.h>
using namespace std;
int main()
{
	char c;
	cin>>c;
	if(c>='A'&&a<='Z')
	cout<<"A";
	else cout<<"a";
			    
    return 0;
}


Compiler output:
a.cc: In function 'int main()':
a.cc:7:20: error: 'a' was not declared in this scope
    7 |         if(c>='A'&&a<='Z')
      |                    ^
Language: C++

#include<bits/c++.h>
using namespace std;
int main()
{
  char c;
  cin>>c;
  if(c>'Z')
    c-=32;
  else
    c+=32;
  cout<<c;
  return 0;
}

Compiler output:
a.cc:1:9: fatal error: bits/c++.h: No such file or directory
    1 | #include<bits/c++.h>
      |         ^~~~~~~~~~~~
compilation terminated.
Language: Java

import java.io.BufferedReader; 
import java.io.IOException; 
import java.io.InputStreamReader; 
import java.util.Scanner; 
import java.util.StringTokenizer; 
import java.util.*;
  
public class Solution
{ 
    //By shwetank_verma
    static class FastReader 
    { 
        BufferedReader br; 
        StringTokenizer st; 
  
        public FastReader() 
        { 
            br = new BufferedReader(new
                     InputStreamReader(System.in)); 
        } 
  
        String next() 
        { 
            while (st == null || !st.hasMoreElements()) 
            { 
                try
                { 
                    st = new StringTokenizer(br.readLine()); 
                } 
                catch (IOException  e) 
                { 
                    e.printStackTrace(); 
                } 
            } 
            return st.nextToken(); 
        } 
  
        int nextInt() 
        { 
            return Integer.parseInt(next()); 
        } 
  
        long nextLong() 
        { 
            return Long.parseLong(next()); 
        } 
  
        double nextDouble() 
        { 
            return Double.parseDouble(next()); 
        } 
  
        String nextLine() 
        { 
            String str = ""; 
            try
            { 
                str = br.readLine(); 
            } 
            catch (IOException e) 
            { 
                e.printStackTrace(); 
            } 
            return str; 
        } 
    } 
    static int mod=1000000007;
    static boolean primes[]=new boolean[1000007];
    
    static boolean seive(int n){
        Arrays.fill(primes,true);
        primes[0]=primes[1]=false;
        for(int i=2;i*i<=n;i++){
            if(primes[i]==true){
                for(int p=i*i;p<=n;p+=i){
                    primes[p]=false;
                }
            }
        }
        if(n<1000007){
            return primes[n];
        }
        return false;
        
    }
    static int gcd(int a,int b){
        if(b==0)
        return a;
        return gcd(b,a%b);
    }
    static long GCD(long a,long b){
        if(b==0)
        return a;
        return GCD(b,a%b);
    }
    
  
    public static void main(String[] args) 
    { 
        FastReader sc=new FastReader(); 
        try{
           
                String s=sc.next();
                char ch=s.charAt(0);
                if(ch>=65&&ch<=90)
                	System.out.println('A');
                else if(ch>=97&&ch<=122)
                	System.out.println('a');
                	
           
            
        }catch(Exception e){
            return;
        }
    } 
}


Compiler output:
Main.java:8: error: class Solution is public, should be declared in a file named Solution.java
public class Solution
       ^
1 error
Language: Java

import java.util.*;
import java.lang.*;
import java.math.*;
import java.io.*;
class Main{
	public static void main(String[] args) {
		InputStream inputStream = System.in;
        OutputStream outputStream = System.out;
        Scanner in = new Scanner(inputStream);
        PrintWriter out = new PrintWriter(outputStream);
      	char c=next();
		if(c>=65 && c<=90)
			System.out.println('A');
		else
			System.out.println('a');
	} 
}

Compiler output:
Main.java:11: error: cannot find symbol
      	char c=next();
      	       ^
  symbol:   method next()
  location: class Main
1 error
Language: Java

package abc171;

import java.util.Scanner;

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

        char c = sc.next().toCharArray()[0];
        if (Character.isUpperCase(c)) {
            System.out.println("A");
        } else {
            System.out.println("a");
        }
    }
}


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

import java.util.*;
public class Main{
  public static void main(String[] args){
    Scanner sc =new Scanner(System.in);
    String S =sc.next();
    String T[] ={"A","B","C","D","E","F","G","H","I","J","K","L","M","N","O","P","Q","R","S","T","U","V","W","X","Y","Z"}
    for(int i=0;i<26;i++){
      if(S.equals(T[i])){System.out.println("A");System.exit(0);}
    }
    System.out.println("a");
  }
}

Compiler output:
Main.java:6: error: ';' expected
    String T[] ={"A","B","C","D","E","F","G","H","I","J","K","L","M","N","O","P","Q","R","S","T","U","V","W","X","Y","Z"}
                                                                                                                         ^
1 error
Language: Java

import java.io.BufferedReader;
import java.io.*;
import java.util.*;
import java.util.ArrayList;
import java.util.Iterator;
import java.util.List;
import java.util.Collections;
public class Main {
	public static void main(final String[] args){
    
    Scanner sc = new Scanner(System.in);
    
    String a = next();

    if( Character.isUpperCase( str.charAt( 0 ) ) ) {
        System.out.println("A");
    }
    else {
        System.out.println("a");
    }

    
    

    


    
    


    


    
    


    
	}
}

Compiler output:
Main.java:13: error: cannot find symbol
    String a = next();
               ^
  symbol:   method next()
  location: class Main
Main.java:15: error: cannot find symbol
    if( Character.isUpperCase( str.charAt( 0 ) ) ) {
                               ^
  symbol:   variable str
  location: class Main
2 errors
Language: C++



#include <bits/stdc++.h>

#define FAST ios_base::sync_with_stdio(false);cin.tie(NULL);cout.tie(NULL)
#define PI acos(-1.0)
#define sq(n) (n)*(n)

using namespace std;
typedef long long ll;

int main()
{
    FAST;

    char s[100];
    gets(s);
    if(s[1]>'a'&&s[1]<'z')
    {
        cout<<"a"<<endl;
    }

    else
    {
        cout<<"A"<<endl;
    }


    return 0;
}



Compiler output:
a.cc: In function 'int main()':
a.cc:17:5: error: 'gets' was not declared in this scope; did you mean 'getw'?
   17 |     gets(s);
      |     ^~~~
      |     getw
Language: C++

#include<iostream>
using namespace std;
int main()
{
  char x;
  cin>>x;
  if(int(x)<91)
  {
    cout<<"A";
  }
  else
  {
    coout<<"a";
  }
  return 0;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:13:5: error: 'coout' was not declared in this scope
   13 |     coout<<"a";
      |     ^~~~~
Language: C++

#include<iostream>
#include<string>
using namespace std;
 
int main(){
	string s;
	
	cin >> s;

	if(isupper(s)){
		cout << "A" << endl;
	}else{
		cout << "a" << endl;
	}
}

Compiler output:
a.cc: In function 'int main()':
a.cc:10:19: error: no matching function for call to 'isupper(std::string&)'
   10 |         if(isupper(s)){
      |            ~~~~~~~^~~
In file included from /usr/include/c++/14/bits/basic_ios.h:37,
                 from /usr/include/c++/14/ios:46,
                 from /usr/include/c++/14/ostream:40,
                 from /usr/include/c++/14/iostream:41,
                 from a.cc:1:
/usr/include/c++/14/bits/locale_facets.h:2631:5: note: candidate: 'template<class _CharT> bool std::isupper(_CharT, const locale&)'
 2631 |     isupper(_CharT __c, const locale& __loc)
      |     ^~~~~~~
/usr/include/c++/14/bits/locale_facets.h:2631:5: note:   candidate expects 2 arguments, 1 provided
In file included from /usr/include/c++/14/cctype:42,
                 from /usr/include/c++/14/bits/localefwd.h:42,
                 from /usr/include/c++/14/ios:43:
/usr/include/ctype.h:117:1: note: candidate: 'int isupper(int)'
  117 | __exctype (isupper);
      | ^~~~~~~~~
/usr/include/ctype.h:117:1: note:   no known conversion for argument 1 from 'std::string' {aka 'std::__cxx11::basic_string<char>'} to 'int'
  117 | __exctype (isupper);
      | ^~~~~~~~~
Language: C++

#include <iostream>
using namespace std;
int main(){
	char x;
  	cin>>x;
    if((int)x>=65&&(int)x<=90){
        cout<<"A";
    }else{
        cout<<"a"
    }
}

Compiler output:
a.cc: In function 'int main()':
a.cc:9:18: error: expected ';' before '}' token
    9 |         cout<<"a"
      |                  ^
      |                  ;
   10 |     }
      |     ~
Language: C++

#include <iostream>

using namespace std;

int main()
{
   char α;
   cin >> α;

   if (isupper(s))
   {
       cout << "A" << endl;
   }
   else
   {
       cout << "a" << endl;
   }

   return 0;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:10:16: error: 's' was not declared in this scope
   10 |    if (isupper(s))
      |                ^
Language: C++

#include<bits/stdc++.h>
#include<unordered_map>
#include<string>
#include<math.h>
#define ll long long
using namespace std;
const ll INF = 1LL << 60;
const int inf = 1 << 30;
const ll N= 1e8;
inline void fastio()
{ 
     ios::sync_with_stdio(false);
    cin.tie(0);
    cout.tie(0);
}

int main()
{
    char n;
    cin >> n;
    if(n<=90)
        cout << A;
    else
        cout << a;
    return 0;
}



Compiler output:
a.cc: In function 'int main()':
a.cc:22:17: error: 'A' was not declared in this scope
   22 |         cout << A;
      |                 ^
a.cc:24:17: error: 'a' was not declared in this scope
   24 |         cout << a;
      |                 ^
Language: C++

#include<bits/stdc++.h>
int main()
{
 char c;
  cin>>c;
  if(c>=A&&c<=Z)
    cout<<"A"<<endl;
  else
    cout<<"a"<<endl;
return 0;
  
}

Compiler output:
a.cc: In function 'int main()':
a.cc:5:3: error: 'cin' was not declared in this scope; did you mean 'std::cin'?
    5 |   cin>>c;
      |   ^~~
      |   std::cin
In file included from /usr/include/x86_64-linux-gnu/c++/14/bits/stdc++.h:146,
                 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:6:9: error: 'A' was not declared in this scope
    6 |   if(c>=A&&c<=Z)
      |         ^
a.cc:6:15: error: 'Z' was not declared in this scope
    6 |   if(c>=A&&c<=Z)
      |               ^
a.cc:7:5: error: 'cout' was not declared in this scope; did you mean 'std::cout'?
    7 |     cout<<"A"<<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:7:16: error: 'endl' was not declared in this scope; did you mean 'std::endl'?
    7 |     cout<<"A"<<endl;
      |                ^~~~
      |                std::endl
In file included from /usr/include/c++/14/istream:41,
                 from /usr/include/c++/14/sstream:40,
                 from /usr/include/c++/14/complex:45,
                 from /usr/include/c++/14/ccomplex:39,
                 from /usr/include/x86_64-linux-gnu/c++/14/bits/stdc++.h:127:
/usr/include/c++/14/ostream:744:5: note: 'std::endl' declared here
  744 |     endl(basic_ostream<_CharT, _Traits>& __os)
      |     ^~~~
a.cc:9:5: error: 'cout' was not declared in this scope; did you mean 'std::cout'?
    9 |     cout<<"a"<<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:9:16: error: 'endl' was not declared in this scope; did you mean 'std::endl'?
    9 |     cout<<"a"<<endl;
      |                ^~~~
      |                std::endl
/usr/include/c++/14/ostream:744:5: note: 'std::endl' declared here
  744 |     endl(basic_ostream<_CharT, _Traits>& __os)
      |     ^~~~
Language: Java

import java.util.*;
public class Main {
	public static void main(String[] args){
		Scanner sc = new Scanner(System.in);
		String s = sc.next();
		
        String [26] str = {"a","b","c","d","e","f","g","h","i","j","k","l","m","n","o","p","q","r","s","t","u","v","w","x","y","z"};
        for(int i=0;i<26;i++){if(s.equals(str[i])){System.out.println("a");}
                              else{if(i==25){System.out.println("A");}}
                             }
		
		
	}
}


Compiler output:
Main.java:7: error: not a statement
        String [26] str = {"a","b","c","d","e","f","g","h","i","j","k","l","m","n","o","p","q","r","s","t","u","v","w","x","y","z"};
               ^
Main.java:7: error: ';' expected
        String [26] str = {"a","b","c","d","e","f","g","h","i","j","k","l","m","n","o","p","q","r","s","t","u","v","w","x","y","z"};
                   ^
Main.java:7: error: illegal start of expression
        String [26] str = {"a","b","c","d","e","f","g","h","i","j","k","l","m","n","o","p","q","r","s","t","u","v","w","x","y","z"};
                          ^
Main.java:7: error: not a statement
        String [26] str = {"a","b","c","d","e","f","g","h","i","j","k","l","m","n","o","p","q","r","s","t","u","v","w","x","y","z"};
                           ^
Main.java:7: error: ';' expected
        String [26] str = {"a","b","c","d","e","f","g","h","i","j","k","l","m","n","o","p","q","r","s","t","u","v","w","x","y","z"};
                              ^
5 errors
Language: Java

import java.util.*;
class s{
  public static void main(String args[]){
    Scanner obj=new Scanner(System.in);
    int t=obj.nextInt();
    while(t-->0){
      String s=obj.nextLine();
      if(s.isLowerCase())
        System.out.println("a");
      else
        System.out.println("A");
    }
  }
}

Compiler output:
Main.java:8: error: cannot find symbol
      if(s.isLowerCase())
          ^
  symbol:   method isLowerCase()
  location: variable s of type String
1 error
Language: Java

import java.util.*; 

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

		Char s = sc.next();

		if(s >= 'a' && s <= 'z'){
			System.out.println("a");
		 } else {
			 System.out.println("A");
		 }
		 
		}
	  }

Compiler output:
Main.java:7: error: cannot find symbol
		Char s = sc.next();
		^
  symbol:   class Char
  location: class Main
1 error
Language: C++

#include <iostream>
using namespace std;

void main()
{
	char char1;
	cin >> char1;
	if (isupper(char1))
	{
		cout << 'A' << endl;
	}
	else
	{
		cout << 'a' << endl;
	}
}

Compiler output:
a.cc:4:1: error: '::main' must return 'int'
    4 | void main()
      | ^~~~
Language: C++

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


int main() {
    string s;
    cin >> s;

    if (isupper(s)) {
        cout << 'A' <<endl;
    } else {
        cout << 'a' <<endl;
    }
}


Compiler output:
a.cc: In function 'int main()':
a.cc:9:16: error: no matching function for call to 'isupper(std::string&)'
    9 |     if (isupper(s)) {
      |         ~~~~~~~^~~
In file included from /usr/include/c++/14/bits/basic_ios.h:37,
                 from /usr/include/c++/14/ios:46,
                 from /usr/include/c++/14/istream:40,
                 from /usr/include/c++/14/sstream:40,
                 from /usr/include/c++/14/complex:45,
                 from /usr/include/c++/14/ccomplex:39,
                 from /usr/include/x86_64-linux-gnu/c++/14/bits/stdc++.h:127,
                 from a.cc:1:
/usr/include/c++/14/bits/locale_facets.h:2631:5: note: candidate: 'template<class _CharT> bool std::isupper(_CharT, const locale&)'
 2631 |     isupper(_CharT __c, const locale& __loc)
      |     ^~~~~~~
/usr/include/c++/14/bits/locale_facets.h:2631:5: note:   candidate expects 2 arguments, 1 provided
In file included from /usr/include/c++/14/cctype:42,
                 from /usr/include/x86_64-linux-gnu/c++/14/bits/stdc++.h:35:
/usr/include/ctype.h:117:1: note: candidate: 'int isupper(int)'
  117 | __exctype (isupper);
      | ^~~~~~~~~
/usr/include/ctype.h:117:1: note:   no known conversion for argument 1 from 'std::string' {aka 'std::__cxx11::basic_string<char>'} to 'int'
  117 | __exctype (isupper);
      | ^~~~~~~~~
Language: Java

import java.util.*;
import java.lang.*;
import java.math.*;
import java.io.*;
class Main{
	public static void main(String[] args) {
		InputStream inputStream = System.in;
        OutputStream outputStream = System.out;
        Scanner in = new Scanner(inputStream);
        PrintWriter out = new PrintWriter(outputStream);
      	char c=next();
		if(c>=65 && c<=90)
			System.out.println('A');
		else
			System.out.println('a');
	} 


Compiler output:
Main.java:16: error: reached end of file while parsing
	} 
	 ^
1 error
Language: C

X=input()
if X.islower():
    print("a")
else:
    print("A")


Compiler output:
main.c:1:1: warning: data definition has no type or storage class
    1 | X=input()
      | ^
main.c:1:1: error: type defaults to 'int' in declaration of 'X' [-Wimplicit-int]
main.c:1:3: error: implicit declaration of function 'input' [-Wimplicit-function-declaration]
    1 | X=input()
      |   ^~~~~
main.c:1:3: error: initializer element is not constant
main.c:2:1: error: expected ',' or ';' before 'if'
    2 | if X.islower():
      | ^~
Language: C++

#include<bits\stdc++.h>
#define MX 100000
using namespace std;
typedef long long ll;

int main()
{
	char c;
	cin>>c;
	if(c>='A' and c<='Z') cout<<"A"<<endl;
	else cout<<"a"<<endl;
}


Compiler output:
a.cc:1:9: fatal error: bits\stdc++.h: No such file or directory
    1 | #include<bits\stdc++.h>
      |         ^~~~~~~~~~~~~~~
compilation terminated.
Language: C

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

int main(){
  int n,i,x,y=0,j=0;
  char c;
    
  
  scanf("%c",&c);

  if((c>='a') && (c<='z'))
    printf("a\n");
  else
    printf("A\n");
  return 0;
}#include <stdio.h>
#include <stdlib.h>
#include <math.h>
#include <string.h>

int main(){
  int n,i,x,y=0,j=0;
  char c;
    
  
  scanf("%c",&c);

  if((c>='a') && (c<='z'))
    printf("a\n");
  else
    printf("A\n");
  return 0;
}

Compiler output:
main.c:18:2: error: stray '#' in program
   18 | }#include <stdio.h>
      |  ^
main.c:18:11: error: expected '=', ',', ';', 'asm' or '__attribute__' before '<' token
   18 | }#include <stdio.h>
      |           ^
Language: Java

import java.io.BufferedReader; 
import java.io.IOException; 
import java.io.InputStreamReader; 
import java.util.Scanner; 
import java.util.StringTokenizer; 
import java.util.*;
  
public class atcb1a
{ 
    //By shwetank_verma
    static class FastReader 
    { 
        BufferedReader br; 
        StringTokenizer st; 
  
        public FastReader() 
        { 
            br = new BufferedReader(new
                     InputStreamReader(System.in)); 
        } 
  
        String next() 
        { 
            while (st == null || !st.hasMoreElements()) 
            { 
                try
                { 
                    st = new StringTokenizer(br.readLine()); 
                } 
                catch (IOException  e) 
                { 
                    e.printStackTrace(); 
                } 
            } 
            return st.nextToken(); 
        } 
  
        int nextInt() 
        { 
            return Integer.parseInt(next()); 
        } 
  
        long nextLong() 
        { 
            return Long.parseLong(next()); 
        } 
  
        double nextDouble() 
        { 
            return Double.parseDouble(next()); 
        } 
  
        String nextLine() 
        { 
            String str = ""; 
            try
            { 
                str = br.readLine(); 
            } 
            catch (IOException e) 
            { 
                e.printStackTrace(); 
            } 
            return str; 
        } 
    } 
    static int mod=1000000007;
    static boolean primes[]=new boolean[1000007];
    
    static boolean seive(int n){
        Arrays.fill(primes,true);
        primes[0]=primes[1]=false;
        for(int i=2;i*i<=n;i++){
            if(primes[i]==true){
                for(int p=i*i;p<=n;p+=i){
                    primes[p]=false;
                }
            }
        }
        if(n<1000007){
            return primes[n];
        }
        return false;
        
    }
    static int gcd(int a,int b){
        if(b==0)
        return a;
        return gcd(b,a%b);
    }
    static long GCD(long a,long b){
        if(b==0)
        return a;
        return GCD(b,a%b);
    }
    
  
    public static void main(String[] args) 
    { 
        FastReader sc=new FastReader(); 
        try{
           
                String s=sc.next();
                char ch=s.charAt(0);
                if(ch>=65&&ch<=90)
                	System.out.println('A');
                else if(ch>=97&&ch<=122)
                	System.out.println('a');
                	
           
            
        }catch(Exception e){
            return;
        }
    } 
}


Compiler output:
Main.java:8: error: class atcb1a is public, should be declared in a file named atcb1a.java
public class atcb1a
       ^
1 error
Language: C

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

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

   if (isupper(s))
   {
       cout << "A" << endl;
   }
   else
   {
       cout << "a" << endl;
   }

   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<iostream>
using namespace std;
//#include<math>
#include<algorithm>
#include<map>
//#include<pair>
#include<vector>
#include<set>
#include<stack>
#include<queue>
//priority_queue inside queue
#include<deque>
#define fast ios_base::sync_with_stdio(false); cin.tie(NULL); cout.tie(NULL);
#define nl '\n'
typedef long long ll;
typedef unsigned long long ull;
#define f(i,start,end) for(i=start;i<=end;i++)

bool isPrime(int n)
{
    for(int i=2; i*i<=n; i++)
    {
        if(n%i==0) return false;
    }
    return true;
}

int main()
{
    fast;
    //int t=0; cin >> t; while(t--) //testcases
    {
    ch c; cin >> c;
    if(c>='a' && c<='z') cout << 'a';
    else cout << 'A';
    }
    return 0;
}
    

Compiler output:
a.cc: In function 'int main()':
a.cc:33:5: error: 'ch' was not declared in this scope
   33 |     ch c; cin >> c;
      |     ^~
a.cc:33:18: error: 'c' was not declared in this scope
   33 |     ch c; cin >> c;
      |                  ^
Language: Java

import java.util.Scanner;

public class cd {
    
    private static final int N = 50000;
    public static void main(String[] args) {
        Scanner s = new Scanner(System.in);
        String c = s.nextLine();
        if (Character.isUpperCase(c.charAt(0))) {
           System.out.println("A");
        } else {
            System.out.println("a");
        }
    }
}
// 9 * 2

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

#include <bits/stdc++.h>
using namespace std;
int main(){
	char x;
  	cin>>x;
    if((int)x>=65&&(int)x<=90){
        cout<<"A";
    }else{
        cout<<"a"
    }
}

Compiler output:
a.cc: In function 'int main()':
a.cc:9:18: error: expected ';' before '}' token
    9 |         cout<<"a"
      |                  ^
      |                  ;
   10 |     }
      |     ~
Language: C++

#include<iostream>
#include<stdio.h>
#include<vector>
#include<ctype.h>
#include<string>
#include<cmath>
#include<string.h>
#include<sstream>
#include<limits.h>
using namespace std;
typedef long long int ll;
typedef vector<int> vi;

//最大公約数
int gcd(int a,int b){
    return b ? gcd(b,a%b):a;
}

//最小公倍数
int lcm(int a,int b){
    return a/gcd(a,b)*b;
}

//素数判定
bool isPrime(int x){
    int i;
    if(x<2)return 0;
    else if(x==2)return 1;
    if(x%2==0)return 0;
    for(int i=3;i*i<=x;i+=2){
        if(x%i==0)return 0;
    }
    return 1;
}

//桁ごとの足し算
int digsum(int n){
    int res=0;
    while(n>0){
        res+=n%10;
        n/=10;
    }
    return res;
}

//約数列挙
vector<int> enum_div(int n){
    vector<int> ret;
    for(int i=1;i*i<=n;++i){
        if(n%i==0){
            ret.push_back(i);
            if(i*i !=n){
                ret.push_back(n/i);
            }
        }
    }
    return ret;
}

//累乗の計算とあまり,0で累乗そのまま出力
long long modpow(long long a,long long n,long long mod){
    if(mod==0)mod=__LONG_LONG_MAX__;
    long long res=1;
    while(n>0){
        if(n & 1)res=res*a%mod;
        a=a*a%mod;
        n>>=1;
    }
    return res;
}

//指定文字の文字数カウント
int stringcount(string s,char c){
    return count(s.cbegin(),s.cend(),c);
}

char a;
int main(){
    cin>>a;
    if(islower(a)){
        cout<<"a"<<endl;
    }
    else{
        cout<<"A"<<endl;
    }
    return 0;
}

Compiler output:
a.cc: In function 'int stringcount(std::string, char)':
a.cc:74:12: error: 'count' was not declared in this scope
   74 |     return count(s.cbegin(),s.cend(),c);
      |            ^~~~~
Language: Java

import java.util.* ;
import java.util.Map.Entry;
public class ps6 {
	public static void main(String[] args) {
		ps6 obj = new ps6() ;
		Scanner S = new Scanner( System.in ) ;
		char ch = S.nextLine().charAt(0)  ;
		if( Character.isUpperCase(ch) ) System.out.println( 'A' ) ;
		else System.out.println( 'a' ) ;
	}
}

Compiler output:
Main.java:3: error: class ps6 is public, should be declared in a file named ps6.java
public class ps6 {
       ^
1 error
Language: C++

#include<iostream>
#include<ctype>
using namespace std;
int main()
{
 char a;
  cin>>a;
  if(isupper(a))
    cout<<"A";
  else
    cout<<"a";
  return 0;
}

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

#include <bits/stdc++.h>
using namespace std;
#define rep(i, n) for (int i = 0; i < (int)(n); i++)
typedef long long ll;
int main() {
  char a; cin>>a;
  if(a=='a'||a=='b'||a=='c'||a=='d'||a=='e'||a=='f'||a=='g'||a=='h'||a=='i'||a=='j'||a=='k'||a=='l'||a=='m'||a=='n'||a=='o'||a=='p'||a=='q'||a=='r'||a=='s'||a=='t'||a=='u'||a=='v'||a=='w'||a=='x'||a=='y'||a=='z'||){
    cout << 'a';
  }
    else cout << 'A';
}

Compiler output:
a.cc: In function 'int main()':
a.cc:7:214: error: expected primary-expression before ')' token
    7 |   if(a=='a'||a=='b'||a=='c'||a=='d'||a=='e'||a=='f'||a=='g'||a=='h'||a=='i'||a=='j'||a=='k'||a=='l'||a=='m'||a=='n'||a=='o'||a=='p'||a=='q'||a=='r'||a=='s'||a=='t'||a=='u'||a=='v'||a=='w'||a=='x'||a=='y'||a=='z'||){
      |                                                                                                                                                                                                                      ^
Language: Java

import java.util.*;
import java.util.Scanner;
import java.io.*;
import java.io.BufferedReader; 
import java.io.IOException; 
import java.io.InputStreamReader; 
import java.util.Scanner; 
import java.util.StringTokenizer; 
 
public class at171a
{
    static class FastReader 
    { 
        BufferedReader br; 
        StringTokenizer st; 
  
        public FastReader() 
        { 
            br = new BufferedReader(new
                     InputStreamReader(System.in)); 
        } 
  
        String next() 
        { 
            while (st == null || !st.hasMoreElements()) 
            { 
                try
                { 
                    st = new StringTokenizer(br.readLine()); 
                } 
                catch (IOException  e) 
                { 
                    e.printStackTrace(); 
                } 
            } 
            return st.nextToken(); 
        } 
  
        int nextInt() 
        { 
            return Integer.parseInt(next()); 
        } 
  
        long nextLong() 
        { 
            return Long.parseLong(next()); 
        } 
  
        double nextDouble() 
        { 
            return Double.parseDouble(next()); 
        } 
  
        String nextLine() 
        { 
            String str = ""; 
            try
            { 
                str = br.readLine(); 
            } 
            catch (IOException e) 
            { 
                e.printStackTrace(); 
            } 
            return str; 
        } 
    } 
    public static void main (String[] args) 
	{
        //code by sushant kumar
        FastReader in=new FastReader();
        char ch=(in.nextLine()).charAt(0);
        if(ch>=65&&ch<=90)
            System.out.println('A');
        else 
            System.out.println('a');
    }
}

Compiler output:
Main.java:10: error: class at171a is public, should be declared in a file named at171a.java
public class at171a
       ^
1 error
Language: Java

import java.util.Scanner;
public class Main {
    public static void main(String[] args) {
        Scanner sc = new Scanner(System.in);
        char ch = sc.nextChar();
        if (Character.isLowerCase(ch)) {
            System.out.println('a');
        } else {
            System.out.println('A');
        }
    }
}

Compiler output:
Main.java:5: error: cannot find symbol
        char ch = sc.nextChar();
                    ^
  symbol:   method nextChar()
  location: variable sc of type Scanner
1 error
Language: C

#include<stdio.h>

int main(){
  char a[1];
  scanf("%s",a[]);
  if(a[1]<='Z'){printf("A");}
  if(a[1]>='a'){printf("a");}
  return 0;
}

Compiler output:
main.c: In function 'main':
main.c:5:16: error: expected expression before ']' token
    5 |   scanf("%s",a[]);
      |                ^
Language: C


#include <bits/stdc++.h>
using namespace std;
typedef long long ll;
typedef long double ld;
typedef double db; 
typedef string str; 
typedef pair<ll,ll> pl; 
typedef vector<ll> vl; 
typedef vector<vl> vvl; 
#define mp make_pair
#define se second
#define pb push_back
#define pf push_front
#define nn <<"\n"
#define F0R(i,a) for(ll i=0;i<a;i++)
#define FOR(i,a,b) for(ll i=a;i<b;i++)
int INF=0x3f3f3f3f;
ll MOD=1000000007;

ll binpow(ll a,ll b, ll c=1e18){
	ll res=1;
	while(b>0){
		if(b & 1){
			res*=a;
			res%=c;
		}
		a*=a;
		a%=c;
		b>>=1;
	}
	return res;
}
int main(){
	ios_base::sync_with_stdio(0);
	cin.tie(0);
	//ifstream cin("name.in");
	//ofstream cout("name.out");
	char a;
	cin>>a;
	
	if(toupper (a)==a){
		cout<<"A" nn;
	}else{
		cout<<'a' nn;
	}
}


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

#include <iostream>
typedef unsigned long long int uint;
typedef long double ldb;
#define int long long
#define gcd            __gcd
#define setbits(x)     __builtin_popcountll(x)
#define zrobits(x)     __builtin_ctzll(x)
#define mod            1000000007
#define mod2           998244353
#define maxe           *max_element
#define mine           *min_element
#define inf            1e18
#define deci(x,y)      fixed<<setprecision(y)<<x
#define w(t)           int t; cin>>t; while(t--)
#define nitin          ios_base::sync_with_stdio(false); cin.tie(NULL)
using namespace std;

int power(int x, int y, int p)
{
    int res = 1;
    x = x % p;
    while (y > 0)
    {
        if (y & 1)
            res = (res * x) % p;
        y = y >> 1;
        x = (x * x) % p;
    }
    return res;
}
int modi(int a, int m)
{
    return power(a, m - 2, m);
}
int32_t main()
{
    char c;
    cin>>c;
    if(c>='A' && c<='Z')
        cout<<'A';
    else
        cout<<'a';
}

Compiler output:
a.cc:2:32: error: conflicting declaration 'typedef long long unsigned int uint'
    2 | typedef unsigned long long int uint;
      |                                ^~~~
In file included from /usr/include/stdlib.h:514,
                 from /usr/include/c++/14/cstdlib:79,
                 from /usr/include/c++/14/ext/string_conversions.h:43,
                 from /usr/include/c++/14/bits/basic_string.h:4154,
                 from /usr/include/c++/14/string:54,
                 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,
                 from /usr/include/c++/14/ostream:40,
                 from /usr/include/c++/14/iostream:41,
                 from a.cc:1:
/usr/include/x86_64-linux-gnu/sys/types.h:150:22: note: previous declaration as 'typedef unsigned int uint'
  150 | typedef unsigned int uint;
      |                      ^~~~
Language: C

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

#define mp                    make_pair
#define pb                    push_back
#define ll                    long long
#define ld					  long double

#define ss                       second
#define ff                        first

#define fr(i,a,b)   for(ll i=a;i<b;i++)
#define f(i,n)                fr(i,0,n)
#define rf(i,b,a) for(ll i=b-1;i>=a;i--)
#define r(i,n)                rf(i,n,0)

#define sz(a)                int((a).size())
#define all(c)               (c).begin(),(c).end()
#define tr(c,i)              for(typeof(c).begin() i = (c).begin(); i != (c).end(); i++)
#define present(c,x)         ((c).find(x) != (c).end())
#define cpresent(c,x)        (find(all(c),x) != (c).end())

#define pi                   pair<int,int>
#define pll                  pair < ll , ll >
#define pd					 pair<ld,ld>
#define endl                 '\n'

#define PI                   3.141592653589793238462643383279502884197169399375105820974944592307816406286
#define mod					 1000000007
#define inf                  1000000007
#define eps                  0.000000000000001

typedef vector<int> vi; 
typedef vector< ll > vl;
typedef vector< ld > vd;
typedef vector< pi > vpi;
typedef vector< pll > vpl;
typedef vector< vi > vvi;

mt19937 rng(chrono::steady_clock::now().time_since_epoch().count());

//vector<int> adj[200010],value(200010),par(200010),vis(200010,0),dis(200010,0),g(200010,0),col(200010,-1);
//int myrandom (int i) { return std::rand()%i;}

int main()
{
	char c; cin>>c;
	if(c>=97 && c<=122) cout<<'a'<<endl;
	else cout<<'A'<<endl;
}


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

#include<iostream>
#include<vector>
using namespace std;
using ll = long long;

int main(){
    string s;
    cin>>s;
    if(isupper(s)){
    cout<<"A";
    }
    else {
    cout<<"a";
    }
    return 0;
}
    

Compiler output:
a.cc: In function 'int main()':
a.cc:9:15: error: no matching function for call to 'isupper(std::string&)'
    9 |     if(isupper(s)){
      |        ~~~~~~~^~~
In file included from /usr/include/c++/14/bits/basic_ios.h:37,
                 from /usr/include/c++/14/ios:46,
                 from /usr/include/c++/14/ostream:40,
                 from /usr/include/c++/14/iostream:41,
                 from a.cc:1:
/usr/include/c++/14/bits/locale_facets.h:2631:5: note: candidate: 'template<class _CharT> bool std::isupper(_CharT, const locale&)'
 2631 |     isupper(_CharT __c, const locale& __loc)
      |     ^~~~~~~
/usr/include/c++/14/bits/locale_facets.h:2631:5: note:   candidate expects 2 arguments, 1 provided
In file included from /usr/include/c++/14/cctype:42,
                 from /usr/include/c++/14/bits/localefwd.h:42,
                 from /usr/include/c++/14/ios:43:
/usr/include/ctype.h:117:1: note: candidate: 'int isupper(int)'
  117 | __exctype (isupper);
      | ^~~~~~~~~
/usr/include/ctype.h:117:1: note:   no known conversion for argument 1 from 'std::string' {aka 'std::__cxx11::basic_string<char>'} to 'int'
  117 | __exctype (isupper);
      | ^~~~~~~~~
Language: C++

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


char A;
 
int main(void)
{
    cin >> A;
    if (A >= 0x61)
    {
        cout << "a";
    }
    else
    {
        cout << "A";
    }
}

Compiler output:
a.cc:2:10: fatal error: stdc++.h: No such file or directory
    2 | #include "stdc++.h"
      |          ^~~~~~~~~~
compilation terminated.
Language: C

#include<stdio.h>
#include<stdlib.h>
#include<string.h>
#include<stdbool.h>
#include<math.h>
#include<limits.h>
#include "print.h"
int main(){
    char a;
    scanf("%c",&a);
    if(a>='a' && a<='z')  printf("a");
    else printf("A");
}


Compiler output:
main.c:7:10: fatal error: print.h: No such file or directory
    7 | #include "print.h"
      |          ^~~~~~~~~
compilation terminated.
Language: Java

        Scanner sc = new Scanner(System.in);
        String alpha = sc.next();

        char c = alpha.charAt(0);


        if(c>='a' && c <= 'z'){
            System.out.println('a');
        }else{
            System.out.println('A');
        }



Compiler output:
Main.java:1: error: unnamed classes are a preview feature and are disabled by default.
        Scanner sc = new Scanner(System.in);
        ^
  (use --enable-preview to enable unnamed classes)
Main.java:7: error: class, interface, enum, or record expected
        if(c>='a' && c <= 'z'){
        ^
Main.java:9: error: class, interface, enum, or record expected
        }else{
        ^
Main.java:11: error: class, interface, enum, or record expected
        }
        ^
4 errors
Language: C++

#include<bits/stdc++.h>
using namespace std;
#define ff                first
#define ss                second
#define int               long long
#define pb                push_back
#define mp                make_pair
#define li                list<int>
#define pii               pair<int,int>
#define vi                vector<int>
#define mii               map<int ,int>
#define setbits(x)        _builtin_popcountll(x)
#define zrobits(x)        _builtin_ctzll(x)
#define mod               1000000007
#define inf               1e18
#define ps(x,y)           fixed<<setprecision(y)<<x
#define mk(arr,n,type)    type *arr=new type(n);
#define w(x)              int x; cin>>x; while(x--)
#define all(x)            (x).begin(), (x).end()
#define PI                3.14159265358979
void c_p_c()
{
#ifndef ONLINE_JUDGE
	freopen("input.txt", "r", stdin);
	freopen("ou.txt", "w", stdout);
#endif
}
int FUN1 (int a[], int n, int x) {
	int i;
	for (i = 0; i < n && a[i] != x; i++);
	if (i == n) return -1;
	else return i;
}

void solve()
{

	char a; cin >> a;
	if (is_upper(a))cout << "A";
	else cout << "a";
}
int32_t main()
{
	c_p_c();
	solve();
}

Compiler output:
a.cc: In function 'void solve()':
a.cc:39:13: error: 'is_upper' was not declared in this scope; did you mean 'iswupper'?
   39 |         if (is_upper(a))cout << "A";
      |             ^~~~~~~~
      |             iswupper
Language: C

#include<iostream>
#define ll long long
#define pb push_back

int main(){
char s;
std::cin >> s;
if(s>=65 && s<=90)
   std::cout << 'A' << std::endl;
else
  std::cout << 'a' << std::endl;   
   
	
	
	
	
	
	
	
	
	
	
	
	
	
	
	
	
	
return 0;	
}


Compiler output:
main.c:1:9: fatal error: iostream: No such file or directory
    1 | #include<iostream>
      |         ^~~~~~~~~~
compilation terminated.
Language: C

#include<stdio.h>
int main()
{
    char x;
    scanf("%c",&x);
    if (c>=65 && c<=91)
        printf("A");
    else
        printf("a");
    return 0;
}



Compiler output:
main.c: In function 'main':
main.c:6:9: error: 'c' undeclared (first use in this function)
    6 |     if (c>=65 && c<=91)
      |         ^
main.c:6:9: note: each undeclared identifier is reported only once for each function it appears in
Language: C++

#include<bits/stdc++.h> 
using namespace std; 
int main(){
 char c; 
  cin>>c;
  int x=c-'0'; 
  if(x>=97) cout<<"a"; 
  else{ cout<<"A";
  
  }

Compiler output:
a.cc: In function 'int main()':
a.cc:10:4: error: expected '}' at end of input
   10 |   }
      |    ^
a.cc:3:11: note: to match this '{'
    3 | int main(){
      |           ^