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

#include<algorithm>#include<iostream>
using namespace std;
int main()
{
  int n,k;
  cin>>n>>k;
  int a[n];
  for(int i=0;i<n;i++)
    cout<<a[i];
  sort(a,a+n);
    int min_ans=0;
  for(int i=0;i<k;i++)
  {
    min_ans+=a[i];
  }
  cout<<min_ans<<endl;
  return 0;
}

Compiler output:
a.cc:1:20: warning: extra tokens at end of #include directive
    1 | #include<algorithm>#include<iostream>
      |                    ^
a.cc: In function 'int main()':
a.cc:6:3: error: 'cin' was not declared in this scope
    6 |   cin>>n>>k;
      |   ^~~
a.cc:2:1: note: 'std::cin' is defined in header '<iostream>'; this is probably fixable by adding '#include <iostream>'
    1 | #include<algorithm>#include<iostream>
  +++ |+#include <iostream>
    2 | using namespace std;
a.cc:9:5: error: 'cout' was not declared in this scope
    9 |     cout<<a[i];
      |     ^~~~
a.cc:9:5: note: 'std::cout' is defined in header '<iostream>'; this is probably fixable by adding '#include <iostream>'
a.cc:16:3: error: 'cout' was not declared in this scope
   16 |   cout<<min_ans<<endl;
      |   ^~~~
a.cc:16:3: note: 'std::cout' is defined in header '<iostream>'; this is probably fixable by adding '#include <iostream>'
a.cc:16:18: error: 'endl' was not declared in this scope
   16 |   cout<<min_ans<<endl;
      |                  ^~~~
a.cc:2:1: note: 'std::endl' is defined in header '<ostream>'; this is probably fixable by adding '#include <ostream>'
    1 | #include<algorithm>#include<iostream>
  +++ |+#include <ostream>
    2 | using namespace std;
Language: C++

#incude<algorithm>
#include<iostream>
using namespace std;
int main()
{
  int n,k;
  cin>>n>>k;
  int a[n];
  for(int i=0;i<n;i++)
    cout<<a[i];
  sort(a,a+n);
    int min_ans=0;
  for(int i=0;i<k;i++)
  {
    min_ans+=a[i];
  }
  cout<<min_ans<<endl;
  return 0;
}

Compiler output:
a.cc:1:2: error: invalid preprocessing directive #incude; did you mean #include?
    1 | #incude<algorithm>
      |  ^~~~~~
      |  include
a.cc: In function 'int main()':
a.cc:11:3: error: 'sort' was not declared in this scope; did you mean 'short'?
   11 |   sort(a,a+n);
      |   ^~~~
      |   short
Language: C++

#include<iostream>
using namespace std;
int main()
{
  int N,K;
  cin>>N>>K;
  int a[N];
  for(int i=0;i<N;i++)
    cout<<a[i];
  sort(a,a+N);
    int min_ans=0;
  for(int i=0;i<K;i++)
  {
    min_sum+=a[i];
  }
  cout<<min_sum<<endl;
  return 0;
}
  

Compiler output:
a.cc: In function 'int main()':
a.cc:10:3: error: 'sort' was not declared in this scope; did you mean 'short'?
   10 |   sort(a,a+N);
      |   ^~~~
      |   short
a.cc:14:5: error: 'min_sum' was not declared in this scope
   14 |     min_sum+=a[i];
      |     ^~~~~~~
a.cc:16:9: error: 'min_sum' was not declared in this scope
   16 |   cout<<min_sum<<endl;
      |         ^~~~~~~
Language: C++

#include<iostream>
using namespace std;
int main()
{
  int N,K;
  cin>>N>>K;
  int a[N];
  for(int i=0;i<N;i++)
    cout<<a[i];
  sort(a,a+N)
    int min_ans=0;
  for(int i=0;i<K;i++)
  {
    min_sum+=a[i];
  }
  cout<<min_sum<<endl;
  return 0;
}
  

Compiler output:
a.cc: In function 'int main()':
a.cc:10:3: error: 'sort' was not declared in this scope; did you mean 'short'?
   10 |   sort(a,a+N)
      |   ^~~~
      |   short
a.cc:14:5: error: 'min_sum' was not declared in this scope
   14 |     min_sum+=a[i];
      |     ^~~~~~~
a.cc:16:9: error: 'min_sum' was not declared in this scope
   16 |   cout<<min_sum<<endl;
      |         ^~~~~~~
Language: C++

#include<iostream>
using namespace std;
char Solve(char c)
{
  if(isupper(c))
  {
    return 'A';
  }
  else
  {
    return 'a';
  }
}
int main()
{
  char c;
  cin>>c;
  cout<<Solve(c)<<"\n";
    return0;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:19:5: error: 'return0' was not declared in this scope
   19 |     return0;
      |     ^~~~~~~
Language: C++

#include<iostream>
using namespace std;
char Solve(char c)
{
  if(isupper(c))
  {
    return 'A;
  }
  else
  {
    return 'a';
  }
}
int main()
{
  char c;
  cin>>c;
  cout<<Solve(c)<<"\n|;
    return0;
}

Compiler output:
a.cc:7:12: warning: missing terminating ' character
    7 |     return 'A;
      |            ^
a.cc:7:12: error: missing terminating ' character
    7 |     return 'A;
      |            ^~~
a.cc:18:19: warning: missing terminating " character
   18 |   cout<<Solve(c)<<"\n|;
      |                   ^
a.cc:18:19: error: missing terminating " character
   18 |   cout<<Solve(c)<<"\n|;
      |                   ^~~~~
a.cc: In function 'char Solve(char)':
a.cc:8:3: error: expected primary-expression before '}' token
    8 |   }
      |   ^
a.cc:7:11: error: expected ';' before '}' token
    7 |     return 'A;
      |           ^
      |           ;
    8 |   }
      |   ~        
a.cc: In function 'int main()':
a.cc:19:5: error: 'return0' was not declared in this scope
   19 |     return0;
      |     ^~~~~~~
Language: C++

#include<iostream>
using namespace std;
char Solve(char c))
{
  if(isupper(c))
  {
    return 'A;
  }
  else
  {
    return 'a';
  }
}
int main()
{
  char c;
  cin>>c;
  cout<<Solve(c)<<"\n|;
    return0;
}


Compiler output:
a.cc:7:12: warning: missing terminating ' character
    7 |     return 'A;
      |            ^
a.cc:7:12: error: missing terminating ' character
    7 |     return 'A;
      |            ^~~
a.cc:18:19: warning: missing terminating " character
   18 |   cout<<Solve(c)<<"\n|;
      |                   ^
a.cc:18:19: error: missing terminating " character
   18 |   cout<<Solve(c)<<"\n|;
      |                   ^~~~~
a.cc:3:19: error: expected initializer before ')' token
    3 | char Solve(char c))
      |                   ^
a.cc: In function 'int main()':
a.cc:18:9: error: 'Solve' was not declared in this scope
   18 |   cout<<Solve(c)<<"\n|;
      |         ^~~~~
a.cc:19:5: error: 'return0' was not declared in this scope
   19 |     return0;
      |     ^~~~~~~
Language: C++

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

Compiler output:
a.cc: In function 'char Solve(char)':
a.cc:7:12: error: 'A' was not declared in this scope
    7 |     return A;
      |            ^
a.cc:11:12: error: 'a' was not declared in this scope
   11 |     return a;
      |            ^
Language: C++

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

int main(){
    char a;
    cin >> a;

    if((int)a => 92){
        cout << 'A' << endl;
    }
    else{
        cout << 'a' << endl;
    }
}

Compiler output:
a.cc: In function 'int main()':
a.cc:8:16: error: expected primary-expression before '>' token
    8 |     if((int)a => 92){
      |                ^
Language: C++

#include<iostream>
#include<vector>
#include<algorithm>
#include<queue>
#include<iomanip>
#include <math.h>
using namespace std;

int main(){
    char a,b;
    cin>>a;
    b='A'
    string s=qwertyuiopasdfghjklzxcvbnm;
    for(int i=0;i<s.size();i++){
        if(s[i]==a){
            b='a';
        }
    }
    cout<<b<<endl;
}


Compiler output:
a.cc: In function 'int main()':
a.cc:12:10: error: expected ';' before 'string'
   12 |     b='A'
      |          ^
      |          ;
   13 |     string s=qwertyuiopasdfghjklzxcvbnm;
      |     ~~~~~~
a.cc:14:19: error: 's' was not declared in this scope
   14 |     for(int i=0;i<s.size();i++){
      |                   ^
Language: C++

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

int main(){
  string s;
  cin >> s;
  if(islower(s)){
    cout << "a" << endl;
  }else{
    cout << "A" << endl;
  }
}

Compiler output:
a.cc: In function 'int main()':
a.cc:8:13: error: no matching function for call to 'islower(std::string&)'
    8 |   if(islower(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:2637:5: note: candidate: 'template<class _CharT> bool std::islower(_CharT, const locale&)'
 2637 |     islower(_CharT __c, const locale& __loc)
      |     ^~~~~~~
/usr/include/c++/14/bits/locale_facets.h:2637:5: 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:112:1: note: candidate: 'int islower(int)'
  112 | __exctype (islower);
      | ^~~~~~~~~
/usr/include/ctype.h:112:1: note:   no known conversion for argument 1 from 'std::string' {aka 'std::__cxx11::basic_string<char>'} to 'int'
  112 | __exctype (islower);
      | ^~~~~~~~~
Language: C++

#include<iostream>
#include<string>

using namespace std;
 
int main()
{
  char a;
  cin >> a;
  if(a >= "A" && a <= "Z") cout << "A" << endl;
  else cout << "a" << endl;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:10:8: error: ISO C++ forbids comparison between pointer and integer [-fpermissive]
   10 |   if(a >= "A" && a <= "Z") cout << "A" << endl;
      |      ~~^~~~~~
a.cc:10:20: error: ISO C++ forbids comparison between pointer and integer [-fpermissive]
   10 |   if(a >= "A" && a <= "Z") cout << "A" << endl;
      |                  ~~^~~~~~
Language: C++

#include<stdio.h>
#include<string.h>
int main(){
	int a;
	scanf("%s", &a);
	char str(255);
	if(a>='A' && a<='Z'){
		printf("A\n")
	}
	else if (a>='a' && a<='z'){
		printf("a\n")
	}
	return 0;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:8:30: error: expected ';' before '}' token
    8 |                 printf("A\n")
      |                              ^
      |                              ;
    9 |         }
      |         ~                     
a.cc:11:30: error: expected ';' before '}' token
   11 |                 printf("a\n")
      |                              ^
      |                              ;
   12 |         }
      |         ~
Language: C++

#include <iostream>

int mai() {
  std::ios_base::sync_with_stdio(false);
  std::cin.tie(NULL);
  std::cout.tie(NULL);

  char a; std::cin >> a;
  if ('A' <= a and a <= 'Z')
    std::cout << "A\n";
  else
    std::cout << "a\n";

  return 0;
}


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

#include<stdio.h>
int main(void)
{
	int a,A;
	scanf("%c",&a);
	if(a>='a' && a<='z'){
		printf("a\n");
	}
	else if{
		printf("A\n");
	}
	return 0;
}
	

Compiler output:
a.cc: In function 'int main()':
a.cc:9:16: error: expected '(' before '{' token
    9 |         else if{
      |                ^
      |                (
Language: Java

public class Main {
 	public static void main(String[] args) {
        Scanner sc = new Scanner(System.in);
      	char c = sc.next();
    	if (Character.isUpperCase()) System.out.println('A');
        else System.out.println('a');
    }
}

Compiler output:
Main.java:3: error: cannot find symbol
        Scanner sc = new Scanner(System.in);
        ^
  symbol:   class Scanner
  location: class Main
Main.java:3: error: cannot find symbol
        Scanner sc = new Scanner(System.in);
                         ^
  symbol:   class Scanner
  location: class Main
Main.java:5: error: no suitable method found for isUpperCase(no arguments)
    	if (Character.isUpperCase()) System.out.println('A');
    	             ^
    method Character.isUpperCase(char) is not applicable
      (actual and formal argument lists differ in length)
    method Character.isUpperCase(int) is not applicable
      (actual and formal argument lists differ in length)
3 errors
Language: C++

#include<iostream>
#include<string>


char main() {
	char α;
	std::string text_A = "A";
	std::string text_a = "a";

	std::cin >> α;

	//あえて文字列文字コードで指定Z=0x5A
	if ('A'<=α&&α<=0x5A) {
		std::cout << text_A << std::endl;
		return 0;
	}
	std::cout << text_a << std::endl;

}


Compiler output:
a.cc:5:1: error: '::main' must return 'int'
    5 | char main() {
      | ^~~~
Language: C++

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

int main() {
	// your code goes here
	string a; cin >> a;
	if (islower(a)) {
	    cout << 'a';
	} else {
	    cout << 'A';
	}
	return 0;
}


Compiler output:
a.cc: In function 'int main()':
a.cc:9:20: error: no matching function for call to 'islower(std::string&)'
    9 |         if (islower(a)) {
      |             ~~~~~~~^~~
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:2637:5: note: candidate: 'template<class _CharT> bool std::islower(_CharT, const locale&)'
 2637 |     islower(_CharT __c, const locale& __loc)
      |     ^~~~~~~
/usr/include/c++/14/bits/locale_facets.h:2637:5: 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:112:1: note: candidate: 'int islower(int)'
  112 | __exctype (islower);
      | ^~~~~~~~~
/usr/include/ctype.h:112:1: note:   no known conversion for argument 1 from 'std::string' {aka 'std::__cxx11::basic_string<char>'} to 'int'
  112 | __exctype (islower);
      | ^~~~~~~~~
Language: C++

#include <iostream>
using namespace std;

int main() {
	char a; cin >> a;
	int ascii = (int)a;
	if (ascii >= 65 && <= 90) {
	    cout << 'A';
	} else {
	    cout << 'a';
	}
}


Compiler output:
a.cc: In function 'int main()':
a.cc:7:28: error: expected primary-expression before '<=' token
    7 |         if (ascii >= 65 && <= 90) {
      |                            ^~
Language: C++

# include <iostream>
# include <math.h>
# include <Windows.h>

using namespace std;


int main()
{
	long long int N;

	cin >> N;
	bool test = true;
	int M = N;
	int length = 1;
	int A = 0;
	int B = 0;

	if (M % 26 == 0)
	{
		M /= 26;
		while (test)
		{

			if (M % 26 == 1)
			{
				M /= 26;
				length++;
			}
			else
			{
				test = false;
				length = 1;
			}
			if (M == 0)
				test = false;
		}
	}
	if (M == 0)
		N = M;
	else
		M = N;



	for (int i = 0; i < length - 1; i++)
	{
		cout << "z";
	}

	while (M > 676)// while N > 676
	{
		while (test)
		{
			M /= 26;
			length++;
			if (M >= 26 && M < 25 + length)
			{
				for (int i = 1; i < length + 1; i++) // po kazdem predchozim foru snizit cyklus o 1
				{
					A += pow(26, i);
					if (i < length)
						B += pow(26, i);
				}
				if (A - N < B)
				{
					//cout << "A : " << A;
					//cout << " B : " << B << endl;
					cout << "z";
					test = false;
				}
			}


			if (M == 0)
			{
				test = false;
			}
		}
		if (M != 0)
		{
			N -= pow(26, length);
			M = N;
		}

		//cout << "M: " << M << endl;
		length = 1;
		A = 0;
		B = 0;
		test = true;
	}

	//cout << "M: " << M << endl;

	char name;

	int num = N;
	int let = 0;
	int* rest;

	while (num != 0)
	{
		num /= 26;
		let++;
	}
	rest = new int[let];

	for (int i = let - 1; i >= 0; i--)
	{
		rest[i] = N % 26;
		N /= 26;
	}

	for (int i = 0; i < let; i++)
	{
		if (rest[i] == 0)
			name = 122;
		else
			name = rest[i] + 96;
		cout << name;
	}
	cout << endl;
    

    return 0;
}

Compiler output:
a.cc:3:11: fatal error: Windows.h: No such file or directory
    3 | # include <Windows.h>
      |           ^~~~~~~~~~~
compilation terminated.
Language: C++

#include<iostream>

int main() {
	char α;
	std::cin >> α;
	if (α <= 0x54) {
		α = 'A';
		std::cout << α << std::endl;
		return 0;
	}
	α = 'a';
	std::cout << α << std::endl;


Compiler output:
a.cc: In function 'int main()':
a.cc:12:37: error: expected '}' at end of input
   12 |         std::cout << α << std::endl;
      |                                     ^
a.cc:3:12: note: to match this '{'
    3 | int main() {
      |            ^
Language: C++

#include <iostream>
#include <ctype.h>
#include <string>

int main(){
  
  string Q;
  std::cin >> Q;
  
  if( Q == islower(Q) )
  {
    std::cout << 'A' << std::endl;
  }
  
  if( Q == isupper(Q) )
  {
    std::cout << 'a' << std::endl;
  }
  
  return 0;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:7:3: error: 'string' was not declared in this scope
    7 |   string Q;
      |   ^~~~~~
a.cc:7:3: note: suggested alternatives:
In file included from /usr/include/c++/14/iosfwd:41,
                 from /usr/include/c++/14/ios:40,
                 from /usr/include/c++/14/ostream:40,
                 from /usr/include/c++/14/iostream:41,
                 from a.cc:1:
/usr/include/c++/14/bits/stringfwd.h:77:33: note:   'std::string'
   77 |   typedef basic_string<char>    string;
      |                                 ^~~~~~
In file included from /usr/include/c++/14/bits/locale_classes.h:40,
                 from /usr/include/c++/14/bits/ios_base.h:41,
                 from /usr/include/c++/14/ios:44:
/usr/include/c++/14/string:76:11: note:   'std::pmr::string'
   76 |     using string    = basic_string<char>;
      |           ^~~~~~
a.cc:8:15: error: 'Q' was not declared in this scope
    8 |   std::cin >> Q;
      |               ^
Language: C++

#include <iostream>
#include <ctype.h>
#include <string.h>

int main(){
  
  std::string Q;
  std::cin >> Q;
  
  if( Q == islower(Q) )
  {
    std::cout << 'A' << std::endl;
  }
  
  if( Q == isupper(Q) )
  {
    std::cout << 'a' << std::endl;
  }
  
  return 0;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:10:19: error: no matching function for call to 'islower(std::string&)'
   10 |   if( Q == islower(Q) )
      |            ~~~~~~~^~~
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:2637:5: note: candidate: 'template<class _CharT> bool std::islower(_CharT, const locale&)'
 2637 |     islower(_CharT __c, const locale& __loc)
      |     ^~~~~~~
/usr/include/c++/14/bits/locale_facets.h:2637:5: 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:112:1: note: candidate: 'int islower(int)'
  112 | __exctype (islower);
      | ^~~~~~~~~
/usr/include/ctype.h:112:1: note:   no known conversion for argument 1 from 'std::string' {aka 'std::__cxx11::basic_string<char>'} to 'int'
  112 | __exctype (islower);
      | ^~~~~~~~~
a.cc:15:19: error: no matching function for call to 'isupper(std::string&)'
   15 |   if( Q == isupper(Q) )
      |            ~~~~~~~^~~
/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
/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.*;

public static class Main{
  public static void main(String[] args){
    Scanner sc=new Scanner(System.in);
    int n=sc.nextInt();
    int k=sc.nextInt();
    int[] p=new int[n;
    for(int i=0;i<n;i++){
		p[i]=sc.nextInt();
    }
    Arrays.sort(p);
	int s=0;
    for(int i=0;i<k;i++){
      s=+p[i];
    }
                    System.out.println(s);
                    }

Compiler output:
Main.java:8: error: ']' expected
    int[] p=new int[n;
                     ^
Main.java:18: error: reached end of file while parsing
                    }
                     ^
2 errors
Language: C++

#include<iostream>

using namespace std;

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

}

Compiler output:
a.cc: In function 'int mian()':
a.cc:11:1: warning: no return statement in function returning non-void [-Wreturn-type]
   11 | }
      | ^
/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 <bits/stdc++.h>
using namespace std;
using ll = long long;
int main() {
  char a;
  cin>>a;
  if('A'<=a&&a<='Z'){
    cout<<A<<endl;
  }
  else{
    cout<<a<<endl;
  }
  
}


Compiler output:
a.cc: In function 'int main()':
a.cc:8:11: error: 'A' was not declared in this scope
    8 |     cout<<A<<endl;
      |           ^
Language: C++

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

int main(){
  char s;
  cin>>s;
  if(s>='A' && s<='Z')
    cout<<"A"<<endl;
  else
    cout<<"a"<<endl;
  return 0;
}

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++



using namespace std;

int main()
{

   char s;
   cin >> s;

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

   return 0;
}


Compiler output:
a.cc: In function 'int main()':
a.cc:9:4: error: 'cin' was not declared in this scope
    9 |    cin >> s;
      |    ^~~
a.cc:1:1: note: 'std::cin' is defined in header '<iostream>'; this is probably fixable by adding '#include <iostream>'
  +++ |+#include <iostream>
    1 | 
a.cc:11:8: error: 'isupper' was not declared in this scope
   11 |    if (isupper(s)){
      |        ^~~~~~~
a.cc:12:5: error: 'cout' was not declared in this scope
   12 |     cout << "A" << "\n";
      |     ^~~~
a.cc:12:5: note: 'std::cout' is defined in header '<iostream>'; this is probably fixable by adding '#include <iostream>'
a.cc:15:5: error: 'cout' was not declared in this scope
   15 |     cout << "a" << "\n";
      |     ^~~~
a.cc:15:5: note: 'std::cout' is defined in header '<iostream>'; this is probably fixable by adding '#include <iostream>'
Language: C++

#include <bits/stdc++.h>

using namespace std;

int main()
{

   string s;
   cin >> s;

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

   return 0;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:11:15: error: no matching function for call to 'isupper(std::string&)'
   11 |    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<iostream.h>
using namespace std;
typedef long long ll;


int main()
{
   char s;
   cin>>s;
   if(s>=65&&s<=90)
    cout<<"A"<<endl;
   else
    cout<<"a";
}



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

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

#define Vsort(a) sort(a.begin(), a.end())
#define rep(i,n) for(int i = 0; i < (n); i++)

using namespace std;
using ll = long long;
using P = pair<int, int>;

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

Compiler output:
a.cc: In function 'int main()':
a.cc:19:14: error: 's' was not declared in this scope
   19 |   if(isupper(s)){
      |              ^
Language: C++

using namespace std;

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

}


Compiler output:
a.cc: In function 'int main()':
a.cc:5:6: error: 'cin' was not declared in this scope
    5 |      cin >> A;
      |      ^~~
a.cc:1:1: note: 'std::cin' is defined in header '<iostream>'; this is probably fixable by adding '#include <iostream>'
  +++ |+#include <iostream>
    1 | using namespace std;
a.cc:7:11: error: 'cout' was not declared in this scope
    7 |           cout << 'a' <<endl;
      |           ^~~~
a.cc:7:11: note: 'std::cout' is defined in header '<iostream>'; this is probably fixable by adding '#include <iostream>'
a.cc:7:25: error: 'endl' was not declared in this scope
    7 |           cout << 'a' <<endl;
      |                         ^~~~
a.cc:1:1: note: 'std::endl' is defined in header '<ostream>'; this is probably fixable by adding '#include <ostream>'
  +++ |+#include <ostream>
    1 | using namespace std;
a.cc:9:11: error: 'cout' was not declared in this scope
    9 |           cout << 'A' <<endl;
      |           ^~~~
a.cc:9:11: note: 'std::cout' is defined in header '<iostream>'; this is probably fixable by adding '#include <iostream>'
a.cc:9:25: error: 'endl' was not declared in this scope
    9 |           cout << 'A' <<endl;
      |                         ^~~~
a.cc:9:25: note: 'std::endl' is defined in header '<ostream>'; this is probably fixable by adding '#include <ostream>'
Language: C++

#include <iostream>
using namespace std;

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

}


Compiler output:
a.cc: In function 'int main()':
a.cc:7:26: error: expected ')' before '{' token
    7 |      if (int(A)>=int('a'){
      |         ~                ^
      |                          )
a.cc:13:1: error: expected primary-expression before '}' token
   13 | }
      | ^
Language: C++

#include <iostream>
using namespace std;

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

}

Compiler output:
a.cc: In function 'int main()':
a.cc:7:22: error: 'a' was not declared in this scope
    7 |      if (int(A)>=int(a)){
      |                      ^
Language: C++

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

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


Compiler output:
a.cc: In function 'int main()':
a.cc:13:2: error: expected '}' at end of input
   13 | }
      |  ^
a.cc:4:12: note: to match this '{'
    4 | int main() {
      |            ^
Language: C++

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

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'){
    cout << 'A' << endl;
  }
  else{ 
    cout << 'a' << endl;
  }
}


Compiler output:
a.cc: In function 'int main()':
a.cc:8:221: error: lvalue required as left operand of assignment
    8 |   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'){
      |                                                                                                                                                                                                                         ~~~~^~~~
Language: C++

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

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' << endl;
  }
  else{ 
    cout << 'a' << endl;
  }
}

Compiler output:
a.cc: In function 'int main()':
a.cc:8:230: error: lvalue required as left operand of assignment
    8 |   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.Scanner;
public class Main {
   public static void main(String[] args) {
       Scanner sc = new Scanner(System.in);
       String S = sc.nextLine();
       if (S.isUpperCase(S.charAt(0))) {
         System.out.println("A");
       } else if (S.isLowerCase(S.charAt(0))) {
         System.out.println("a");
       }
   }
}

Compiler output:
Main.java:6: error: cannot find symbol
       if (S.isUpperCase(S.charAt(0))) {
            ^
  symbol:   method isUpperCase(char)
  location: variable S of type String
Main.java:8: error: cannot find symbol
       } else if (S.isLowerCase(S.charAt(0))) {
                   ^
  symbol:   method isLowerCase(char)
  location: variable S of type String
2 errors
Language: C++

#include <bits/stdc++.h>
using namespace std;
int main() {
  string p;
  cin>>p;
  if(isupper(p)){
    cout<<"A"<<endl;
  }
  else{
    cout<<"a"<<ebdl;
  }
  return 0;
}


Compiler output:
a.cc: In function 'int main()':
a.cc:6:13: error: no matching function for call to 'isupper(std::string&)'
    6 |   if(isupper(p)){
      |      ~~~~~~~^~~
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);
      | ^~~~~~~~~
a.cc:10:16: error: 'ebdl' was not declared in this scope
   10 |     cout<<"a"<<ebdl;
      |                ^~~~
Language: C++

#include<bits/stdc++.h>
#define rep(i, n) for (int i = 0; i < (int)(n); i++)
using namespace std;
using ll = long long;
using p = pair<int, int>;
typedef vector<int> vi;

int main() {
  char alpha;
  if ((alpha >= 'a') && (alpha <= 'z')) {
    cout << 'a' << endl;
  } else if ((alph >= 'A') && (alpha <= 'Z')) {
    cout << 'A' << endl;
  }
  return 0;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:12:15: error: 'alph' was not declared in this scope; did you mean 'alpha'?
   12 |   } else if ((alph >= 'A') && (alpha <= 'Z')) {
      |               ^~~~
      |               alpha
Language: C++

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

int main(){
  int a;
  cin >> a;
  
  if(a>='A'&&a<='Z')
    a='A'
  else
    a='a';
  
  cout<<a<<endl;
  
}

Compiler output:
a.cc: In function 'int main()':
a.cc:9:10: error: expected ';' before 'else'
    9 |     a='A'
      |          ^
      |          ;
   10 |   else
      |   ~~~~
Language: C++

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

int main() {
  bool o;
  cin >> o;
  if(o = 'q','w','e','r','t','y','u','i','o','p','a','s','d','f','g','h','j','k','l','z','x','c','v','b','n','m')cout << 'a' <<endl;
  if else cout << 'A' <<endl;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:8:6: error: expected '(' before 'else'
    8 |   if else cout << 'A' <<endl;
      |      ^~~~
      |      (
Language: C++

#include<iostream>
using namespace std;
int main()
{
  char letter;
  cin>>letter;
  if(letter>='a'&&letter<='z')
  {
    cout<<'a'<<endl;
  }
  else if(letter>='A&&letter<='Z')
          {
    cout<<'A<<endl;
  }
          }
    

Compiler output:
a.cc:11:19: warning: multi-character literal with 11 characters exceeds 'int' size of 4 bytes
   11 |   else if(letter>='A&&letter<='Z')
      |                   ^~~~~~~~~~~~~~
a.cc:11:33: warning: missing terminating ' character
   11 |   else if(letter>='A&&letter<='Z')
      |                                 ^
a.cc:11:33: error: missing terminating ' character
   11 |   else if(letter>='A&&letter<='Z')
      |                                 ^~
a.cc:13:11: warning: missing terminating ' character
   13 |     cout<<'A<<endl;
      |           ^
a.cc:13:11: error: missing terminating ' character
   13 |     cout<<'A<<endl;
      |           ^~~~~~~~~
a.cc: In function 'int main()':
a.cc:11:19: error: unable to find character literal operator 'operator""Z' with 'int' argument
   11 |   else if(letter>='A&&letter<='Z')
      |                   ^~~~~~~~~~~~~~
a.cc:11:33: error: expected ')' before '{' token
   11 |   else if(letter>='A&&letter<='Z')
      |          ~                      ^
      |                                 )
   12 |           {
      |           ~                      
a.cc:15:11: error: expected primary-expression before '}' token
   15 |           }
      |           ^
Language: C++

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

int main(){
  string s = "QWERTYUIOPASDFGHJKLZXCVBNM";
  char c;
  cin >> c;
 for(int i = 0; i < s.size(); i++){
   if(c == s[i]) cout << "A" << endl; break;
   else cout << "a" << endl;
 }
}

Compiler output:
a.cc: In function 'int main()':
a.cc:10:4: error: 'else' without a previous 'if'
   10 |    else cout << "a" << endl;
      |    ^~~~
Language: C++

#include <bits/stdc++.h>
#define pb push_back
#define ll long long
#define ret return
using namespace std;
int main() {
	string res("");
	ll in;
	cin>>in;
	while(in>0) {
		in--
		res+=(char)('a'+i%26);
		i=i/26;
		
	}
	reverse(res.begin(),res.end());
	cout<<res<<endl;
	ret 0;
}


Compiler output:
a.cc: In function 'int main()':
a.cc:11:21: error: expected ';' before 'res'
   11 |                 in--
      |                     ^
      |                     ;
   12 |                 res+=(char)('a'+i%26);
      |                 ~~~  
a.cc:13:17: error: 'i' was not declared in this scope; did you mean 'in'?
   13 |                 i=i/26;
      |                 ^
      |                 in
Language: C++

#include <bits/stdc++.h>
using namespace std;
typedef long long int ll;
#define vll vector<ll>
#define vvll vector<vll>
#define mll map<ll,ll>
#define f(i,m,n) for(i=m;i<n;i++)
#define ee endl
#define pb push_back
#define mp make_pair
#define ff first
#define ss second
#define take(v,n) for(i=0;i<n;i++) cin>>v[i];
#define NO() cout<<"NO"<<endl
#define YES() cout<<"YES"<<endl
#define fast ios::sync_with_stdio(0);cin.tie(0);cout.tie(0);
#define sot(v) sort(v.begin(),v.end());
bool isPrime(int n) 
{ 
    // Corner cases 
    if (n <= 1)  return false; 
    if (n <= 3)  return true; 
  
    // This is checked so that we can skip  
    // middle five numbers in below loop 
    if (n%2 == 0 || n%3 == 0) return false; 
  
    for (int i=5; i*i<=n; i=i+6) 
        if (n%i == 0 || n%(i+2) == 0) 
           return false; 
  
    return true; 
}

ll powe(ll x, ll y){
    ll res = 1;
    while (y > 0){
        if (y & 1) res = res*x;
        y = y>>1;
        x = x*x;
    }
    return res;
}

void solve()
{
    ll i,j,k=0,n,l;
    char c;
    cin>>c;
    if(c>=65 && C<97) cout<<"A";
    else cout<<"a";


}

int main() {
    fast;
    ll i,j,l,k,t,n;
    t=1;
    while(t--)
    solve();
}


Compiler output:
a.cc: In function 'void solve()':
a.cc:50:17: error: 'C' was not declared in this scope
   50 |     if(c>=65 && C<97) cout<<"A";
      |                 ^
Language: Java

import java.lang.Character;
import java.util.Scanner;

public class Main {

    static String solve(String s ) {
        char bruh = s.charAt(0);
        if(Character.isUpperCase(bruh)){
            System.out.println("A");
        } else System.out.println("a");

    }

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

    }
}

Compiler output:
Main.java:12: error: missing return statement
    }
    ^
1 error
Language: Java

import java.util.Scanner;
 
class Solution {
  public static void main(String[] args) {
    Scanner scan = new Scanner(System.in);
    String test = scan.next();
    char temp = test.charAt(0);
    test = test.toLowerCase();
    if (temp.equals(test.charAt(0)))
      System.out.print(test);
    else
      System.out.print(temp);
  }
}

Compiler output:
Main.java:9: error: char cannot be dereferenced
    if (temp.equals(test.charAt(0)))
            ^
1 error
Language: Java

import java.util.Scanner;

class Solution {
  public static void main(String[] args) {
    Scanner scan = new Scanner(System.in);
    String test = scan.next();
    char temp = Character.valueOf(test);
    test = test.toLowerCase();
    if (temp.equals(Character.valueOf(test)))
      System.out.print(test);
    else
      System.out.print(temp);
  }
}

Compiler output:
Main.java:7: error: incompatible types: String cannot be converted to char
    char temp = Character.valueOf(test);
                                  ^
Main.java:9: error: char cannot be dereferenced
    if (temp.equals(Character.valueOf(test)))
            ^
Main.java:9: error: incompatible types: String cannot be converted to char
    if (temp.equals(Character.valueOf(test)))
                                      ^
Note: Some messages have been simplified; recompile with -Xdiags:verbose to get full output
3 errors
Language: Java

public class Main {
  public static void main(String[] args) {
    char α = new java.util.Scanner(System.in).nextText;
    if (Charactar.isUpperCase(α)) {
      System.out.println("A");
    } else {
      System.out.println("a");
    }
  }
}


Compiler output:
Main.java:3: error: cannot find symbol
    char ? = new java.util.Scanner(System.in).nextText;
                                             ^
  symbol:   variable nextText
  location: class Scanner
Main.java:4: error: cannot find symbol
    if (Charactar.isUpperCase(?)) {
        ^
  symbol:   variable Charactar
  location: class Main
2 errors
Language: Java

public class Main {
  public static void main(String[] args) {
    String α = new java.util.Scanner(System.in).nextText;
    if (Charactar.isUpperCase(α)) {
      System.out.println("A");
    } else {
      System.out.println("a");
    }
  }
}


Compiler output:
Main.java:3: error: cannot find symbol
    String ? = new java.util.Scanner(System.in).nextText;
                                               ^
  symbol:   variable nextText
  location: class Scanner
Main.java:4: error: cannot find symbol
    if (Charactar.isUpperCase(?)) {
        ^
  symbol:   variable Charactar
  location: class Main
2 errors
Language: Java

public class Main {
  public static void main(String[] args) {
    String α = new java.util.Scanner(System.in).nextText;
    if (α == isUpperCase) {
      System.out.println("A");
    } else {
      System.out.println("a");
    }
  }
}

Compiler output:
Main.java:3: error: cannot find symbol
    String ? = new java.util.Scanner(System.in).nextText;
                                               ^
  symbol:   variable nextText
  location: class Scanner
Main.java:4: error: cannot find symbol
    if (? == isUpperCase) {
             ^
  symbol:   variable isUpperCase
  location: class Main
2 errors
Language: C++

#include <bits/stdc++.h>

int main(){
  char a;
  cin >> a;
  if('a' <= a && a <= '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 >> a;
      |   ^~~
      |   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:6:28: error: 'cout' was not declared in this scope; did you mean 'std::cout'?
    6 |   if('a' <= a && a <= 'z') 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:6:43: error: 'endl' was not declared in this scope; did you mean 'std::endl'?
    6 |   if('a' <= a && a <= 'z') 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:7:8: error: 'cout' was not declared in this scope; did you mean 'std::cout'?
    7 |   else 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:7:23: error: 'endl' was not declared in this scope; did you mean 'std::endl'?
    7 |   else 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: C++

#include <stdio.h>

int main(){
  char a;
  cin >> a;
  if('a' <= a && a <= '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
    5 |   cin >> a;
      |   ^~~
a.cc:6:28: error: 'cout' was not declared in this scope
    6 |   if('a' <= a && a <= 'z') cout << 'a' << endl;
      |                            ^~~~
a.cc:6:43: error: 'endl' was not declared in this scope
    6 |   if('a' <= a && a <= 'z') cout << 'a' << endl;
      |                                           ^~~~
a.cc:7:8: error: 'cout' was not declared in this scope
    7 |   else cout << 'A' << endl;
      |        ^~~~
a.cc:7:23: error: 'endl' was not declared in this scope
    7 |   else cout << 'A' << endl;
      |                       ^~~~
Language: C++

#include "bits/stdc++.h"\nusing namespace std;\nusing lint = int64_t\nint main(){\n	;
	30<=x ? {"Yes", 1} : {"No", 0};
}

Compiler output:
a.cc:1:25: warning: extra tokens at end of #include directive
    1 | #include "bits/stdc++.h"\nusing namespace std;\nusing lint = int64_t\nint main(){\n     ;
      |                         ^
a.cc:2:9: error: expected unqualified-id before numeric constant
    2 |         30<=x ? {"Yes", 1} : {"No", 0};
      |         ^~
a.cc:2:28: error: expected unqualified-id before ':' token
    2 |         30<=x ? {"Yes", 1} : {"No", 0};
      |                            ^
a.cc:3:1: error: expected declaration before '}' token
    3 | }
      | ^
Language: C++

//Compiler optimization
#pragma GCC optimize("Ofast")

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

//typedef
typedef long long ll;
typedef double db;
typedef vector<int> vi;
typedef vector<ll> vl;
typedef vector<string> vs;
typedef vector<char> vc;
typedef string S;
typedef queue<int> qi;
typedef pair<ll,ll> P;
typedef vector<P> vp;
typedef vector<vl> mat;

//macro
#define reverse(a) reverse(a.begin(),a.end())
#define unique(a) a.erase(unique(a.begin(),a.end()),a.end())
#define fr(i,n)for(ll i=0;i<(n);i++)
#define ifr(i,n)for(ll i=(n)-1;i>=0;i--)
#define all(x) x.begin(),x.end()
#define each(x, v) for (auto &x : v)

//abbreviation
#define pb push_back
#define elif else if
#define mp make_pair
#define endl '\n'

//debug
#define debug(x) cerr << #x << ": " << x << endl
#define v_debug(v) cerr << #v << endl;fr(i,v.size()) cerr << i << ": " << v[i] << endl

//const
const  ll INF = 1e18;


int main(){
    cin.tie(0);
    ios::sync_with_stdio(0);
    char x;cin >> x;
    if(x >= 'a' && x <= 'z')coit << 'a';
    else cout << 'A';
    return 0;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:47:29: error: 'coit' was not declared in this scope
   47 |     if(x >= 'a' && x <= 'z')coit << 'a';
      |                             ^~~~
Language: C++

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

int main() {
  char a;
  cin >> a;
  if(isupper(s)){
    cout << "A" << endl;
  }else{
    cout << "a" << endl;
  }
}


Compiler output:
a.cc: In function 'int main()':
a.cc:7:14: error: 's' was not declared in this scope
    7 |   if(isupper(s)){
      |              ^
Language: C++

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

int main(){
  char α;
  cin >> α;
  
  if(isupper(α)){ 
    cout << 'A' << endl;
  }else{
    cout << 'a' << endl;
  }
  
  return 0; 
}

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

public class Main{
  public static void main(String[] args){
    String s = new java.util.Scanner(System.in).nextLine();
    if(a<=s&&s<=z)System.out.println("a");
    else System.out.println("A");
  }
}

Compiler output:
Main.java:4: error: cannot find symbol
    if(a<=s&&s<=z)System.out.println("a");
       ^
  symbol:   variable a
  location: class Main
Main.java:4: error: cannot find symbol
    if(a<=s&&s<=z)System.out.println("a");
                ^
  symbol:   variable z
  location: class Main
2 errors
Language: C++

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

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

Compiler output:
a.cc: In function 'int main()':
a.cc:6:9: error: ISO C++ forbids comparison between pointer and integer [-fpermissive]
    6 |     if(c=="A") cout<<"A";
      |        ~^~~~~
Language: C++

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

int main(){
  char x;
  cin >> x;
  if (isupper(x)) cout << 'A' << endl;
  else cout << "a"<< endl

    
  return 0;
}


Compiler output:
a.cc: In function 'int main()':
a.cc:16:26: error: expected ';' before 'return'
   16 |   else cout << "a"<< endl
      |                          ^
      |                          ;
......
   19 |   return 0;
      |   ~~~~~~