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

#include<iostream>
int main()
{
   char a,b;
   scanf("%c%c",&a,&b);
   if(a=='H')
      cout<<b<<endl;
    else if (b=='H') cout<<"D"<<endl;
            else cout<<"H"<<endl;
   return 0;
}
      

Compiler output:
a.cc: In function 'int main()':
a.cc:7:7: error: 'cout' was not declared in this scope; did you mean 'std::cout'?
    7 |       cout<<b<<endl;
      |       ^~~~
      |       std::cout
In file included from a.cc:1:
/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<<b<<endl;
      |                ^~~~
      |                std::endl
In file included from /usr/include/c++/14/iostream:41:
/usr/include/c++/14/ostream:744:5: note: 'std::endl' declared here
  744 |     endl(basic_ostream<_CharT, _Traits>& __os)
      |     ^~~~
a.cc:8:22: error: 'cout' was not declared in this scope; did you mean 'std::cout'?
    8 |     else if (b=='H') cout<<"D"<<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:8:33: error: 'endl' was not declared in this scope; did you mean 'std::endl'?
    8 |     else if (b=='H') cout<<"D"<<endl;
      |                                 ^~~~
      |                                 std::endl
/usr/include/c++/14/ostream:744:5: note: 'std::endl' declared here
  744 |     endl(basic_ostream<_CharT, _Traits>& __os)
      |     ^~~~
a.cc:9:18: error: 'cout' was not declared in this scope; did you mean 'std::cout'?
    9 |             else cout<<"H"<<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:9:29: error: 'endl' was not declared in this scope; did you mean 'std::endl'?
    9 |             else cout<<"H"<<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>
#include<iostream.h>
using namespace;
  void main()
{
      char a,char b;
      cin>>a>>" ">>b;
      if(a!="H"||a!="D"||b!="H"||b!="D")
      {
           cin>>a>>" ">>b;
      }
      if(a=="H")
      {
          cout<<b;
      }
      if(a=="D")
      {
            if(b=="H")
            {  cout<< a; }
             else
             {cout<<"H";} 

       }

      
}

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

import java.util.Scanner;

public class Main {

	public static void main(String[] args) {
			Scanner sc = new Scanner(System.in);
			char a[] = sc.next().toCharArray();
			char b[] = sc.next().toCharArray();
			if(a[0]==b[0]){
				System.out.println("H");
			}else{
				System.out.println("D");
			}
	}
}

Compiler output:
a.cc:1:1: error: 'import' does not name a type
    1 | import java.util.Scanner;
      | ^~~~~~
a.cc:1:1: note: C++20 'import' only available with '-fmodules-ts'
a.cc:3:1: error: expected unqualified-id before 'public'
    3 | public class Main {
      | ^~~~~~
Language: C++

#include <iostream>

using namespace std;

void main()
{
char  a,b;
cin>>a>>b;
if (a == b)
{
cout<<"H"<<endl;
}else{
cout<<"D"<<endl;
}
}

Compiler output:
a.cc:5:1: error: '::main' must return 'int'
    5 | void main()
      | ^~~~
Language: Java

import java.util.*;
public class Main {
	public static void main(String[] args){
	Scanner sc = new Scanner(System.in);
	String a =sc.next();
	String b =sc.next();
		if(a.equals("H")%%b.equals("H"))System.out.println("H");
		if(a.equals("H")%%b.equals("D"))System.out.println("D");
		if(a.equals("D")%%b.equals("H"))System.out.println("D");
		if(a.equals("D")%%b.equals("D"))System.out.println("H");
	}
	}

Compiler output:
Main.java:7: error: illegal start of expression
		if(a.equals("H")%%b.equals("H"))System.out.println("H");
		                 ^
Main.java:8: error: illegal start of expression
		if(a.equals("H")%%b.equals("D"))System.out.println("D");
		                 ^
Main.java:9: error: illegal start of expression
		if(a.equals("D")%%b.equals("H"))System.out.println("D");
		                 ^
Main.java:10: error: illegal start of expression
		if(a.equals("D")%%b.equals("D"))System.out.println("H");
		                 ^
4 errors
Language: Java

import java.util.*;
public class Main {
	public static void main(String[] args)
	Scanner sc = new Scanner(System.in);
	int x =sc.nextInt();
	if(x<1200)System.out.println("ABC");
	}else{
		System.out.println("ARC");
		}
		}
		}

Compiler output:
Main.java:3: error: ';' expected
	public static void main(String[] args)
	                                      ^
Main.java:6: error: illegal start of type
	if(x<1200)System.out.println("ABC");
	^
Main.java:6: error: illegal start of type
	if(x<1200)System.out.println("ABC");
	     ^
Main.java:6: error: <identifier> expected
	if(x<1200)System.out.println("ABC");
	                            ^
Main.java:6: error: illegal start of type
	if(x<1200)System.out.println("ABC");
	                             ^
Main.java:7: error: class, interface, enum, or record expected
	}else{
	 ^
Main.java:9: error: class, interface, enum, or record expected
		}
		^
7 errors
Language: Java

import java.util.*;
public class Main {
    public static void main(String[] args) throws Exception {
        Scanner sc = new Scanner(System.in);
	String a =sc.next();
	String b =sc.next();
		if(a.equals("H")%%b.equals("H"))System.out.println("H");
		if(a.equals("H")%%b.equals("D"))System.out.println("D");
		if(a.equals("D")%%b.equals("H"))System.out.println("D");
		if(a.equals("D")%%b.equals("D"))System.out.println("H");
	}
	}

Compiler output:
Main.java:7: error: illegal start of expression
		if(a.equals("H")%%b.equals("H"))System.out.println("H");
		                 ^
Main.java:8: error: illegal start of expression
		if(a.equals("H")%%b.equals("D"))System.out.println("D");
		                 ^
Main.java:9: error: illegal start of expression
		if(a.equals("D")%%b.equals("H"))System.out.println("D");
		                 ^
Main.java:10: error: illegal start of expression
		if(a.equals("D")%%b.equals("D"))System.out.println("H");
		                 ^
4 errors
Language: Java

import java.util.*;
public class Main {
    public static void main(String[] args) throws Exception {
        Scanner sc = new Scanner(System.in);
	String a =sc.next();
	String b =sc.next();
		if(a.equals("H")%%　b.equals("H"))System.out.println("H");
		if(a.equals("H")%%　b.equals("D"))System.out.println("D");
		if(a.equals("D")%%　b.equals("H"))System.out.println("D");
		if(a.equals("D")%%　b.equals("D"))System.out.println("H");
	}
	}
	     

Compiler output:
Main.java:7: error: illegal start of expression
		if(a.equals("H")%%?b.equals("H"))System.out.println("H");
		                 ^
Main.java:7: error: illegal character: '\u3000'
		if(a.equals("H")%%?b.equals("H"))System.out.println("H");
		                  ^
Main.java:7: error: ';' expected
		if(a.equals("H")%%?b.equals("H"))System.out.println("H");
		                                ^
Main.java:8: error: illegal start of expression
		if(a.equals("H")%%?b.equals("D"))System.out.println("D");
		                 ^
Main.java:8: error: illegal character: '\u3000'
		if(a.equals("H")%%?b.equals("D"))System.out.println("D");
		                  ^
Main.java:8: error: ';' expected
		if(a.equals("H")%%?b.equals("D"))System.out.println("D");
		                                ^
Main.java:9: error: illegal start of expression
		if(a.equals("D")%%?b.equals("H"))System.out.println("D");
		                 ^
Main.java:9: error: illegal character: '\u3000'
		if(a.equals("D")%%?b.equals("H"))System.out.println("D");
		                  ^
Main.java:9: error: ';' expected
		if(a.equals("D")%%?b.equals("H"))System.out.println("D");
		                                ^
Main.java:10: error: illegal start of expression
		if(a.equals("D")%%?b.equals("D"))System.out.println("H");
		                 ^
Main.java:10: error: illegal character: '\u3000'
		if(a.equals("D")%%?b.equals("D"))System.out.println("H");
		                  ^
Main.java:10: error: ';' expected
		if(a.equals("D")%%?b.equals("D"))System.out.println("H");
		                                ^
12 errors
Language: Java

import java.util.*;
public class Main {
    public static void main(String[] args) throws Exception {
        Scanner sc = new Scanner(System.in);
	String a =sc.next();
       	String b =sc.next();
	      if(a.equals("H")%%b.equals("H"))System.out.println("H");
	      if(a.equals("H")%%b.equals("D"))System.out.println("D");
	      if(a.equals("D")%%b.equals("H"))System.out.println("D");
	      if(a.equals("D")%%b.equals("D"))System.out.println("H");
	      }
	      }
	     

Compiler output:
Main.java:7: error: illegal start of expression
	      if(a.equals("H")%%b.equals("H"))System.out.println("H");
	                       ^
Main.java:8: error: illegal start of expression
	      if(a.equals("H")%%b.equals("D"))System.out.println("D");
	                       ^
Main.java:9: error: illegal start of expression
	      if(a.equals("D")%%b.equals("H"))System.out.println("D");
	                       ^
Main.java:10: error: illegal start of expression
	      if(a.equals("D")%%b.equals("D"))System.out.println("H");
	                       ^
4 errors
Language: Java

import java.util.Scanner;

public class HonestOrDishonest {

	public static void main(String[] args) {
		Scanner scn = new Scanner(System.in);
		int a = Integer.parseInt(scn.next());
		int b = Integer.parseInt(scn.next());
		int H = Integer.parseInt(scn.next());
		int D = Integer.parseInt(scn.next());
	
		if ( a == H && b == H) 
			System.out.println("H");
		if ( a == H && b == D) 
			System.out.println("D");
		if ( a == D && b == H)
			System.out.println("D");
		if ( a == D && b == D) 
			System.out.println("H");

	}

}

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

import java.util.*;
public class Main {
    public static void main(String[] args) throws Exception {
        Scanner sc = new Scanner(System.in);
	int a =sc.nextInt();
       	int b =sc.nextInt();
	      if(a=="H" %% b=="H")System.out.println("H");{
	      if(a=="H" %% b=="D")System.out.println("D");{
	      if(a=="D" %% b=="H")System.out.println("D");{
	      if(a=="D" %% b=="D")System.out.println("H");{
	      }
	      }
	      }
	      }
	      }
	      }

Compiler output:
Main.java:7: error: illegal start of expression
	      if(a=="H" %% b=="H")System.out.println("H");{
	                 ^
Main.java:8: error: illegal start of expression
	      if(a=="H" %% b=="D")System.out.println("D");{
	                 ^
Main.java:9: error: illegal start of expression
	      if(a=="D" %% b=="H")System.out.println("D");{
	                 ^
Main.java:10: error: illegal start of expression
	      if(a=="D" %% b=="D")System.out.println("H");{
	                 ^
4 errors
Language: Java

import java.util.*;
public class Main {
    public static void main(String[] args) throws Exception {
        Scanner sc = new Scanner(System.in);
	int a =sc.nextInt();
       	int b =sc.nextInt();
	      if(a=="H" %% b=="H")System.out.println("H");
	      if(a=="H" %% b=="D")System.out.println("D");
	      if(a=="D" %% b=="H")System.out.println("D");
	      if(a=="D" %% b=="D")System.out.println("H");
	      }
	      }

Compiler output:
Main.java:7: error: illegal start of expression
	      if(a=="H" %% b=="H")System.out.println("H");
	                 ^
Main.java:8: error: illegal start of expression
	      if(a=="H" %% b=="D")System.out.println("D");
	                 ^
Main.java:9: error: illegal start of expression
	      if(a=="D" %% b=="H")System.out.println("D");
	                 ^
Main.java:10: error: illegal start of expression
	      if(a=="D" %% b=="D")System.out.println("H");
	                 ^
4 errors
Language: Java

import java.util.*;
public class Main {
    public static void main(String[] args) throws Exception {
        Scanner sc = new Scanner(System.in);
	int a =sc.nextInt();
       	int b =sc.nextInt();
	      if(a=="H" %% b=="H")System.out.println("H");
	      if(a=="H" %% b=="D")System.out.println("D");
	      if(a=="D" %% b=="H")System.out.println("D");
	      if(a=="D" %% b=="D")System.out.println("H");

Compiler output:
Main.java:7: error: illegal start of expression
	      if(a=="H" %% b=="H")System.out.println("H");
	                 ^
Main.java:8: error: illegal start of expression
	      if(a=="H" %% b=="D")System.out.println("D");
	                 ^
Main.java:9: error: illegal start of expression
	      if(a=="D" %% b=="H")System.out.println("D");
	                 ^
Main.java:10: error: illegal start of expression
	      if(a=="D" %% b=="D")System.out.println("H");
	                 ^
Main.java:10: error: reached end of file while parsing
	      if(a=="D" %% b=="D")System.out.println("H");
	                                                  ^
5 errors
Language: Java

import java.util.*;
public class ABC056_A {
	public static void main(String[] args){	
		Scanner sc=new Scanner(System.in);
		String a=sc.next(),b=sc.next();
		if(a.equals("H")&&b.equals("H"))System.out.println("H");
		else if(a.equals("H")&&b.equals("D"))System.out.println("D");
		else if(a.equals("D")&&b.equals("H"))System.out.println("D");
		else if(a.equals("D")&&b.equals("D"))System.out.println("H");
	}
}

Compiler output:
Main.java:2: error: class ABC056_A is public, should be declared in a file named ABC056_A.java
public class ABC056_A {
       ^
1 error
Language: Java

import java.util.*;
public class ABC056_A {
	public static void main(String[] args){	
		Scanner sc=new Scanner(System.in);
		if(sc.next().equals("H")&&sc.next().equals("H"))System.out.println("H");
		if(sc.next().equals("H")&&sc.next().equals("D"))System.out.println("D");
		if(sc.next().equals("D")&&sc.next().equals("H"))System.out.println("D");
		if(sc.next().equals("D")&&sc.next().equals("D"))System.out.println("H");
	}
}

Compiler output:
Main.java:2: error: class ABC056_A is public, should be declared in a file named ABC056_A.java
public class ABC056_A {
       ^
1 error
Language: Java

package spring21;
import java.util.*;
public class ABC056_A {
	public static void main(String[] args){	
		Scanner sc=new Scanner(System.in);
		if(sc.next().equals("H")&&sc.next().equals("H"))System.out.println("H");
		if(sc.next().equals("H")&&sc.next().equals("D"))System.out.println("D");
		if(sc.next().equals("D")&&sc.next().equals("H"))System.out.println("D");
		if(sc.next().equals("D")&&sc.next().equals("D"))System.out.println("H");
	}
}

Compiler output:
Main.java:3: error: class ABC056_A is public, should be declared in a file named ABC056_A.java
public class ABC056_A {
       ^
1 error
Language: C++

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

int main(void){
 char a, b;
cin >> a;
cin >> b;
 cout << ((a=='D' ? 1 : 0)^(b=='D' ? 1 : 0)) ? 'D' : 'H' << endl;
 return 0;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:8:58: error: invalid operands of types 'char' and '<unresolved overloaded function type>' to binary 'operator<<'
    8 |  cout << ((a=='D' ? 1 : 0)^(b=='D' ? 1 : 0)) ? 'D' : 'H' << endl;
      |                                                      ~~~~^~~~~~~
Language: C++

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

int main(void){
 string a, b;
cin >> a;
cin >> b;
 cout << ((((a=='D' ? 1 : 0)+(b=='D' ? 1 : 0))&1) ? 'D' : 'H') << endl;
 return 0;
}

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

package spring21;

public class ABC056_A {
	public static void main(String[] args){	
	char a='D',b='H';
	if(a=='H'&&b=='H')System.out.println("H");
	if(a=='H'&&b=='D')System.out.println("D");
	if(a=='D'&&b=='H')System.out.println("D");
	if(a=='D'&&b=='D')System.out.println("H");
	}
}

Compiler output:
Main.java:3: error: class ABC056_A is public, should be declared in a file named ABC056_A.java
public class ABC056_A {
       ^
1 error
Language: Java

public class Main {

	public static void main(String[] args) {
		// TODO Auto-generated method stub
		Scanner sc = new Scanner(System.in);
		String a = sc.next() ;
		String b = sc.next() ;
		char A = a.charAt(0);
		char B = b.charAt(0);
		
		if(A == 'H' && B == 'H'){
			System.out.println('H');
		}
		if(A == 'H' && B == 'D'){
			System.out.println('D');
		}
		if(A == 'D' && B == 'H'){
			System.out.println('D');
		}
		if(A == 'D' && B == 'D'){
			System.out.println('H');
		}
	}
}

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

public class A11 {

	public static void main(String[] args) {
		// TODO Auto-generated method stub
		Scanner sc = new Scanner(System.in);
		String a = sc.next() ;
		String b = sc.next() ;
		char A = a.charAt(0);
		char B = b.charAt(0);
		
		if(A == 'H' && B == 'H'){
			System.out.println('H');
		}
		if(A == 'H' && B == 'D'){
			System.out.println('D');
		}
		if(A == 'D' && B == 'H'){
			System.out.println('D');
		}
		if(A == 'D' && B == 'D'){
			System.out.println('H');
		}
	}
}

Compiler output:
Main.java:1: error: class A11 is public, should be declared in a file named A11.java
public class A11 {
       ^
Main.java:5: error: cannot find symbol
		Scanner sc = new Scanner(System.in);
		^
  symbol:   class Scanner
  location: class A11
Main.java:5: error: cannot find symbol
		Scanner sc = new Scanner(System.in);
		                 ^
  symbol:   class Scanner
  location: class A11
3 errors
Language: Java

public class Main {

	public static void main(String[] args) {
		// TODO Auto-generated method stub
		Scanner sc = new Scanner(System.in);
		String a = sc.next() ;
		String b = sc.next() ;
		char A = a.charAt(0);
		char B = b.charAt(0);
		
		if(A == 'H' && B == 'H'){
			System.out.println('H');
		}
		if(A == 'H' && B == 'D'){
			System.out.println('D');
		}
		if(A == 'D' && B == 'H'){
			System.out.println('D');
		}
		if(A == 'D' && B == 'H'){
			System.out.println('H');
		}
	}
}

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

inpt = raw_input().split()

if inpt[0] == 'H':
	print inpt[1]
elif inpt[0] == 'D':
	if inpt[1] == 'H':
		print 'D'
	elif inpt[1] == 'D':
		print 'H'

Compiler output:
a.cc:1:1: error: 'inpt' does not name a type; did you mean 'int'?
    1 | inpt = raw_input().split()
      | ^~~~
      | int
Language: C++

#include<iostream>

int main(){

  string a,b;

  cin>>a>>b;

  if(a==b){
    cout<<"H"<<endl;
  }
  else{
    cout<<"D"<<endl;
  }

  return 0;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:5:3: error: 'string' was not declared in this scope
    5 |   string a,b;
      |   ^~~~~~
a.cc:5:3: 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:7:3: error: 'cin' was not declared in this scope; did you mean 'std::cin'?
    7 |   cin>>a>>b;
      |   ^~~
      |   std::cin
/usr/include/c++/14/iostream:62:18: note: 'std::cin' declared here
   62 |   extern istream cin;           ///< Linked to standard input
      |                  ^~~
a.cc:7:8: error: 'a' was not declared in this scope
    7 |   cin>>a>>b;
      |        ^
a.cc:7:11: error: 'b' was not declared in this scope
    7 |   cin>>a>>b;
      |           ^
a.cc:10:5: error: 'cout' was not declared in this scope; did you mean 'std::cout'?
   10 |     cout<<"H"<<endl;
      |     ^~~~
      |     std::cout
/usr/include/c++/14/iostream:63:18: note: 'std::cout' declared here
   63 |   extern ostream cout;          ///< Linked to standard output
      |                  ^~~~
a.cc:10:16: error: 'endl' was not declared in this scope; did you mean 'std::endl'?
   10 |     cout<<"H"<<endl;
      |                ^~~~
      |                std::endl
/usr/include/c++/14/ostream:744:5: note: 'std::endl' declared here
  744 |     endl(basic_ostream<_CharT, _Traits>& __os)
      |     ^~~~
a.cc:13:5: error: 'cout' was not declared in this scope; did you mean 'std::cout'?
   13 |     cout<<"D"<<endl;
      |     ^~~~
      |     std::cout
/usr/include/c++/14/iostream:63:18: note: 'std::cout' declared here
   63 |   extern ostream cout;          ///< Linked to standard output
      |                  ^~~~
a.cc:13:16: error: 'endl' was not declared in this scope; did you mean 'std::endl'?
   13 |     cout<<"D"<<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<bits/stdc++.h>
using namespace std;
typedef long long ll;

void solve()
{
    char a, b;
    cin >> a >> b;
    if( a == "H" ){
        cout << b << "\n";
    }
    else {
        b == "H"? cout << "D\n" : cout << "H\n";
    }
}
int main() {
    
    solve();
    
    return 0;
}


Compiler output:
a.cc: In function 'void solve()':
a.cc:9:11: error: ISO C++ forbids comparison between pointer and integer [-fpermissive]
    9 |     if( a == "H" ){
      |         ~~^~~~~~
a.cc:13:11: error: ISO C++ forbids comparison between pointer and integer [-fpermissive]
   13 |         b == "H"? cout << "D\n" : cout << "H\n";
      |         ~~^~~~~~
Language: C++

#include　<iostream>
using namespace std;
int main(){
          long long int X;
          int sum=0;
          cin>>X;
          for(int i=1 ;; i++){   //i=0だとわかりにくい
                     sum+=i;
                     if(sum>=X){
                              break;
                    }
          cout<<i;
          } 
          return 0;
}

Compiler output:
a.cc:1:2: error: extended character 　 is not valid in an identifier
    1 | #include　<iostream>
      |  ^
a.cc:1:2: error: invalid preprocessing directive #include\U00003000
    1 | #include　<iostream>
      |  ^~~~~~~~~
a.cc: In function 'int main()':
a.cc:6:11: error: 'cin' was not declared in this scope
    6 |           cin>>X;
      |           ^~~
a.cc:1:1: note: 'std::cin' is defined in header '<iostream>'; this is probably fixable by adding '#include <iostream>'
  +++ |+#include <iostream>
    1 | #include　<iostream>
a.cc:12:11: error: 'cout' was not declared in this scope
   12 |           cout<<i;
      |           ^~~~
a.cc:12:11: note: 'std::cout' is defined in header '<iostream>'; this is probably fixable by adding '#include <iostream>'
Language: C++

#include　<iostream>
using namespace std;
int main(){
          long long int X;
          int sum=0;
          cin>>X;
          for(int i=1 ; ; i++){   //i=0だとわかりにくい
                     sum+=i;
                     if(sum>=X){
                              break;
                    }
          cout<<i<<endl;
          } 
          return 0;
}

Compiler output:
a.cc:1:2: error: extended character 　 is not valid in an identifier
    1 | #include　<iostream>
      |  ^
a.cc:1:2: error: invalid preprocessing directive #include\U00003000
    1 | #include　<iostream>
      |  ^~~~~~~~~
a.cc: In function 'int main()':
a.cc:6:11: error: 'cin' was not declared in this scope
    6 |           cin>>X;
      |           ^~~
a.cc:1:1: note: 'std::cin' is defined in header '<iostream>'; this is probably fixable by adding '#include <iostream>'
  +++ |+#include <iostream>
    1 | #include　<iostream>
a.cc:12:11: error: 'cout' was not declared in this scope
   12 |           cout<<i<<endl;
      |           ^~~~
a.cc:12:11: note: 'std::cout' is defined in header '<iostream>'; this is probably fixable by adding '#include <iostream>'
a.cc:12:20: error: 'endl' was not declared in this scope
   12 |           cout<<i<<endl;
      |                    ^~~~
a.cc:1:1: note: 'std::endl' is defined in header '<ostream>'; this is probably fixable by adding '#include <ostream>'
  +++ |+#include <ostream>
    1 | #include　<iostream>
Language: Java

public class Judge{
	public static void main(String[] args){

		String a = new java.util.Scanner( System.in ).nextLine();
		String b = new java.util.Scanner( System.in ).nextLine();

		if( a.equals("H")){
			if( b.equals("H")){
				System.out.println("H");
			}
			if( b.equals("D")){
				System.out.println("D");
			}
		}
		if( a.equals("D")){
			if( b.equals("H")){
				System.out.println("D");
			}
			if(b.equals("D")){
				System.out.println("H");
			}
		}
	}
}

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

package AtCoder;
import java.util.*;
public class NarrowRectanglesEasy {

	public static void main(String[] args) {
		// TODO Auto-generated method stub
		Scanner sc = new Scanner(System.in);
		int W=sc.nextInt();
		int a=sc.nextInt();
		int b=sc.nextInt();
		int z=Math.abs(a-b);
		if(z<=W) {
			z=0;
		}else{
			z=z-W;
		}
		System.out.println(z);

	}

}


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

#include<bits/stdc++.h>
using namespace std;
main(){
 char a,b;
 cin>>a;
 if(a=='H'){
  cin>>b;
  cout<<b<<endl;
 }
 else{
  cin>>b;
  if(b=="H")cout<<"D"<<endl;
  else cout<<"H"<<endl;
  }
 }

Compiler output:
a.cc:3:1: warning: ISO C++ forbids declaration of 'main' with no type [-Wreturn-type]
    3 | main(){
      | ^~~~
a.cc: In function 'int main()':
a.cc:12:7: error: ISO C++ forbids comparison between pointer and integer [-fpermissive]
   12 |   if(b=="H")cout<<"D"<<endl;
      |      ~^~~~~
Language: Java

import java.util.Scanner;


	public static void main(String[] args) {
		
		Scanner s = new Scanner(System.in);
		String x = "";
		x = s.next();
		char[] c = new char[2];
		c[0] = x.charAt(0);
		c[1] = x.charAt(1);
		
		if(c[0] == c[1]){
			System.out.println('H');
		} else {
			System.out.println('D');
		}
		
	}


Compiler output:
Main.java:4: error: unnamed classes are a preview feature and are disabled by default.
	public static void main(String[] args) {
	              ^
  (use --enable-preview to enable unnamed classes)
1 error
Language: Java

import java.util.Scanner;

public class Go {
	public static void main(String[] args) {
		
		Scanner s = new Scanner(System.in);
		String x = "";
		x = s.next();
		char[] c = new char[2];
		c[0] = x.charAt(0);
		c[1] = x.charAt(1);
		
		if(c[0] == c[1]){
			System.out.println('H');
		} else {
			System.out.println('D');
		}
		
	}
}

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

public class Go {
	public static void main(String[] args) {
		
		Scanner s = new Scanner(System.in);
		String x = "";
		x = s.next();
		char[] c = new char[2];
		c[0] = x.charAt(0);
		c[1] = x.charAt(1);
		
		if(c[0] == c[1]){
			System.out.println('H');
		} else {
			System.out.println('D');
		}
		
	}
}

Compiler output:
Main.java:1: error: class Go is public, should be declared in a file named Go.java
public class Go {
       ^
Main.java:4: error: cannot find symbol
		Scanner s = new Scanner(System.in);
		^
  symbol:   class Scanner
  location: class Go
Main.java:4: error: cannot find symbol
		Scanner s = new Scanner(System.in);
		                ^
  symbol:   class Scanner
  location: class Go
3 errors
Language: Java

public static void main(String[] args) {
		
		Scanner s = new Scanner(System.in);
		String x = "";
		x = s.next();
		char[] c = new char[2];
		c[0] = x.charAt(0);
		c[1] = x.charAt(1);
		
		if(c[0] == c[1]){
			System.out.println('H');
		} else {
			System.out.println('D');
		}
		
	}

Compiler output:
Main.java:1: error: unnamed classes are a preview feature and are disabled by default.
public static void main(String[] args) {
              ^
  (use --enable-preview to enable unnamed classes)
1 error
Language: C++

#include<cstdilo>

int main(){
char w[2] = { 'H', 'D' };
char in1, in2;
int a = 0;

scanf("%c %c", &in1, &in2);

if(in1 == 'D') a++;
if(in2 == 'D') a = (a+1)%2;

if(a == 0) printf("H");
if(a == 1) printf("D");

return 0;
}

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

#include<bits/stdc++.h>
using namespace std;
int main()
{
string a,b,ans;
cin>>a>>b;
if(a=="H" && b=="D")
ans="D";
else if(a=="D" && b=="H")
ans="D";
else if(s=="H" && b=="H")
ans="H";
else
ans="H";
cout<<ans<<endl;
return 0;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:11:9: error: 's' was not declared in this scope
   11 | else if(s=="H" && b=="H")
      |         ^
Language: C++

#import<iostream>
main(){char a,b;std::cin>>a>>b;std::cout<<(a-b?"D":'H');}

Compiler output:
a.cc:1:2: warning: #import is a deprecated GCC extension [-Wdeprecated]
    1 | #import<iostream>
      |  ^~~~~~
a.cc:2:1: warning: ISO C++ forbids declaration of 'main' with no type [-Wreturn-type]
    2 | main(){char a,b;std::cin>>a>>b;std::cout<<(a-b?"D":'H');}
      | ^~~~
a.cc: In function 'int main()':
a.cc:2:47: error: operands to '?:' have different types 'const char*' and 'char'
    2 | main(){char a,b;std::cin>>a>>b;std::cout<<(a-b?"D":'H');}
      |                                            ~~~^~~~~~~~
Language: C++

#import<iostream.h>
main(){char a,b;cin>>a>>b;cout<<(a-b?"D":'H');}

Compiler output:
a.cc:1:2: warning: #import is a deprecated GCC extension [-Wdeprecated]
    1 | #import<iostream.h>
      |  ^~~~~~
a.cc:1:8: fatal error: iostream.h: No such file or directory
    1 | #import<iostream.h>
      |        ^~~~~~~~~~~~
compilation terminated.
Language: C++

#include <stdio.h>

int main(int argc, char const *argv[])
{
  int W, a, b;
  scanf("%d%d%d", &W, &a, &b);
  if(a+W<b) {
    printf("%d\n", b-W-a);
  } else if (a+W==b || a==b+w) {
    printf("1\n");
  } else if ((a < b && b < a+W) || (a < b+W < a+W)) {
    printf("0\n");
  } else {
    printf("%d\n", a-b-W);
  }
  return 0;
}


Compiler output:
a.cc: In function 'int main(int, const char**)':
a.cc:9:29: error: 'w' was not declared in this scope
    9 |   } else if (a+W==b || a==b+w) {
      |                             ^
Language: C++

#include<iostream>
using namespace std;
int main(){
string s1,s2;
cin>>s1>>s2;
if(s1[0]=='H'){
if(s2[0]=='H')cout<<'H'<<endl;
else cout<<'D'<<endl;
)
else{
if(s2[0]=='D')cout<<'H'<<endl;
else cout<<'D'<<endl;
}
}

Compiler output:
a.cc: In function 'int main()':
a.cc:9:1: error: expected primary-expression before ')' token
    9 | )
      | ^
a.cc:14:2: error: expected '}' at end of input
   14 | }
      |  ^
a.cc:3:11: note: to match this '{'
    3 | int main(){
      |           ^
Language: C++

#include<iostream>
using namespace std;
int main(){
string s1,s2;
cin>>s1>>s2;
if(s1[0]=='H'{
if(s2[0]=='H')cout<<'H'<<endl;
else cout<<'D'<<endl;
)
else{
if(s2[0]=='D')cout<<'H'<<endl;
else cout<<'D'<<endl;
}
}

Compiler output:
a.cc: In function 'int main()':
a.cc:6:14: error: expected ')' before '{' token
    6 | if(s1[0]=='H'{
      |   ~          ^
      |              )
a.cc:14:2: error: expected statement at end of input
   14 | }
      |  ^
a.cc:14:2: error: expected '}' at end of input
a.cc:3:11: note: to match this '{'
    3 | int main(){
      |           ^
Language: C

#include<stdio.h>
int main(void)
{
    char a,b;
    scanf("%c",&a);
    scanf("%c",&b);
    if(a=='H'){
        if(b=='H')printf("H");
        else if(b=='D')printf("D");
    }else if(a=='D'){
        if(b=='H')printf("D");
        else if(b==''D')printf("H");
    }
    return 0;
}

Compiler output:
main.c: In function 'main':
main.c:12:20: error: empty character constant
   12 |         else if(b==''D')printf("H");
      |                    ^~
main.c:12:22: error: expected ')' before 'D'
   12 |         else if(b==''D')printf("H");
      |                ~     ^
      |                      )
main.c:12:23: warning: missing terminating ' character
   12 |         else if(b==''D')printf("H");
      |                       ^
main.c:12:23: error: missing terminating ' character
   12 |         else if(b==''D')printf("H");
      |                       ^~~~~~~~~~~~~~
main.c:13:5: error: expected expression before '}' token
   13 |     }
      |     ^
Language: C

#include <stdio.h>

#define HONEST 'H'
#define DISHONEST 'D'
#decine LIER(x) ((x==HONEST) ? (DISHONEST) : (HONEST))

int main(void) {
  char a, b;
  scanf("%c %c", &a, &b);
  if (a == HONEST) {
    printf("%c¥n", b);
  } else {
    printf("%c¥n", LIER(b));
  }

  return 0;
}

Compiler output:
main.c:5:2: error: invalid preprocessing directive #decine; did you mean #define?
    5 | #decine LIER(x) ((x==HONEST) ? (DISHONEST) : (HONEST))
      |  ^~~~~~
      |  define
main.c: In function 'main':
main.c:13:20: error: implicit declaration of function 'LIER' [-Wimplicit-function-declaration]
   13 |     printf("%c¥n", LIER(b));
      |                    ^~~~
Language: C++

#include <bits/stdc++.h>
#define MAX_N 1000100

using namespace std;

#define ll long long
#define ull unsigned long long
#define ii pair<int,int>
#define iii pair<ii, int>

#define fi first
#define se second
#define mp make_pair
#define pb push_back
#define ep emplace_back
#define sz(a) (int) a.size()
#define cl(a) a.clear()

#define vi vector<int>
#define vii vector<ii>

#define LOWBIT(x) ( (x) & -(x) )

#define FOR(x,a,b) for (int x=a;x<=b;x++)
#define FOD(x,a,b) for (int x=a;x>=b;x--)
#define REP(x,a,b) for (int x=a;x<b;x++)
#define RED(x,a,b) for (int x=a;x>b;x--)

const int MAX = 1e5 + 10;
const int MAXN = 1e4 + 10;
const int MOD = 1e9 + 7;
const int inf = 1e9;
const double pi = acos(-1.0);
const double eps = 1e-6;

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

int main()
{
	//freopen("t.txt","r",stdin);
	char a[100],b[100]; cin>>a>>b;
	if (a[0]=='H'&&b[0]=='H')  cout<<'H'
        if (a[0]=='H'&&b[0]=='D') cout<<'D'
        if (a[0]=='D'&&b[0]=='H') cout<<'D'
        if (a[0]=='D'&&b[0]=='D') cout<<'H'
	
}


Compiler output:
a.cc: In function 'int main()':
a.cc:43:45: error: expected ';' before 'if'
   43 |         if (a[0]=='H'&&b[0]=='H')  cout<<'H'
      |                                             ^
      |                                             ;
   44 |         if (a[0]=='H'&&b[0]=='D') cout<<'D'
      |         ~~
Language: C++

#include<iostream>
using namespace std;
void main()
{
char a,b;
cin>>a;
cin>>b;
if(a=='H'&&b=='H')
cout<<"H";
if(a=='D'&&b=='H')
cout<<"D";
if(a=='D'&&b=='D')
cout<<"H";
return 0;
}

Compiler output:
a.cc:3:1: error: '::main' must return 'int'
    3 | void main()
      | ^~~~
Language: C++

#include<iostream>
using namespace std;
void main()
{
char a,b;
cin>>a;
cin>>b;
if(a=='H'&&b=='H')
cout<<"H";
if(a=='D'&&b=='H')
cout<<"D";
if(a=='D'&&b=='D')
cout<<"H";
}

Compiler output:
a.cc:3:1: error: '::main' must return 'int'
    3 | void main()
      | ^~~~
Language: C++

#include<iostream>
using namespace std;
void main()
{
char a,b;
cin>>a;
cin>>b;
if(a=='H'&&b=='H')
cout<<"H";
if(a=='D'&&b=='H')
cout<<"D";
if(a=='D&&b=='D')
cout<<"H";
}

Compiler output:
a.cc:12:7: warning: multi-character literal with 6 characters exceeds 'int' size of 4 bytes
   12 | if(a=='D&&b=='D')
      |       ^~~~~~~~~
a.cc:12:16: warning: missing terminating ' character
   12 | if(a=='D&&b=='D')
      |                ^
a.cc:12:16: error: missing terminating ' character
   12 | if(a=='D&&b=='D')
      |                ^~
a.cc:3:1: error: '::main' must return 'int'
    3 | void main()
      | ^~~~
a.cc: In function 'int main()':
a.cc:12:7: error: unable to find character literal operator 'operator""D' with 'int' argument
   12 | if(a=='D&&b=='D')
      |       ^~~~~~~~~
a.cc:14:1: error: expected primary-expression before '}' token
   14 | }
      | ^
a.cc:13:11: error: expected ')' before '}' token
   13 | cout<<"H";
      |           ^
      |           )
   14 | }
      | ~          
a.cc:12:3: note: to match this '('
   12 | if(a=='D&&b=='D')
      |   ^
a.cc:14:1: error: expected primary-expression before '}' token
   14 | }
      | ^
Language: C++

#include<iostream>
using namespace std;
void main()
{
char a,b;
cin>>a;
cin>>b;
if(a=='H'&b=='H')
cout<<"H";
if(a=='D'&b=='H')
cout<<"D";
if(a=='D&b=='D')
cout<<"H";
}

Compiler output:
a.cc:12:7: warning: multi-character literal with 5 characters exceeds 'int' size of 4 bytes
   12 | if(a=='D&b=='D')
      |       ^~~~~~~~
a.cc:12:15: warning: missing terminating ' character
   12 | if(a=='D&b=='D')
      |               ^
a.cc:12:15: error: missing terminating ' character
   12 | if(a=='D&b=='D')
      |               ^~
a.cc:3:1: error: '::main' must return 'int'
    3 | void main()
      | ^~~~
a.cc: In function 'int main()':
a.cc:12:7: error: unable to find character literal operator 'operator""D' with 'int' argument
   12 | if(a=='D&b=='D')
      |       ^~~~~~~~
a.cc:14:1: error: expected primary-expression before '}' token
   14 | }
      | ^
a.cc:13:11: error: expected ')' before '}' token
   13 | cout<<"H";
      |           ^
      |           )
   14 | }
      | ~          
a.cc:12:3: note: to match this '('
   12 | if(a=='D&b=='D')
      |   ^
a.cc:14:1: error: expected primary-expression before '}' token
   14 | }
      | ^
Language: C++

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

int main()
{
    char a,b;
    scanf("%c%c",&a,&b);
    {
        if(a==H&&b==H)
            printf("H\n");
        if(a==H&&b==D)
            printf("D\n");
        if(a==D&&b==H)
            printf("D\n");
        if(a==D&&b==D)
            printf("H\n");

    }
    return 0;

}


Compiler output:
a.cc: In function 'int main()':
a.cc:9:15: error: 'H' was not declared in this scope
    9 |         if(a==H&&b==H)
      |               ^
a.cc:11:15: error: 'H' was not declared in this scope
   11 |         if(a==H&&b==D)
      |               ^
a.cc:11:21: error: 'D' was not declared in this scope
   11 |         if(a==H&&b==D)
      |                     ^
a.cc:13:15: error: 'D' was not declared in this scope
   13 |         if(a==D&&b==H)
      |               ^
a.cc:13:21: error: 'H' was not declared in this scope
   13 |         if(a==D&&b==H)
      |                     ^
a.cc:15:15: error: 'D' was not declared in this scope
   15 |         if(a==D&&b==D)
      |               ^
Language: C++

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

int main()
{
    char a, b;
    cin >> a >> b;
    cout << a == b ? 'H' : 'D' << endl;
}

Compiler output:
a.cc:2:7: error: expected nested-name-specifier before 'std'
    2 | using std;
      |       ^~~
a.cc: In function 'int main()':
a.cc:7:5: error: 'cin' was not declared in this scope; did you mean 'std::cin'?
    7 |     cin >> a >> b;
      |     ^~~
      |     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:8:5: error: 'cout' was not declared in this scope; did you mean 'std::cout'?
    8 |     cout << a == b ? 'H' : 'D' << 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:8:35: error: 'endl' was not declared in this scope; did you mean 'std::endl'?
    8 |     cout << a == b ? 'H' : 'D' << 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)
      |     ^~~~
Language: C++

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

int main() {
	int N, K;
	cin >> N >> K;
	vector<int> nums(N, 0);
	for (int i = 0; i < N; i++)
		cin >> nums[i];
	sort(nums.begin(), nums.end());
	int res = 0;
	int case_num = pow(2, N);
	for (int i = 0; i < N; i++){
		int add = pow(2, i);
		int is_need = 0;
		int has = 0;
		for (int j = 0; j < case_num; j++){
			if (((j >> i) & 1) == 0) {
				continue;
			}
			int sum = 0;
			for (int k = 0; k < 32; k++) {
				if (((j >> k) & 1) == 1) {
					sum += nums[k];
				}
			}
			if (sum >= K) {
				has = 1;
				if (sum - nums[i] < K){
					is_need = 1;
				}
			}
			if (is_need == 1) {
				break;
			}
		}
		if (has == 1 && is_need == 0) {
			res++;
		}
	}
	cout << res << endl;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:14:24: error: 'pow' was not declared in this scope
   14 |         int case_num = pow(2, N);
      |                        ^~~
Language: C++

#include<iostream>
using namespace std;
#define loop(i,a,b) for(int i=a;i<(int)b;i++)
int main() 
{
    char ch1,ch3,ch4.ch2;
    ch3='H';
    ch4='D';
    cin>>ch1>>ch2;
    if(ch1=='H' && ch2=='H')
     cout<<ch3;
    else
    {
       if(ch1=='H' && ch2=='D')
        cout<<ch4;
       else
       {
             if(ch1=='D' && ch2=='H')
               cout<<ch4;
             else
             {
                if(ch1=='D' && ch2=='D')
                 cout<<ch3;
             }
       }
    }
	return 0;
}


Compiler output:
a.cc: In function 'int main()':
a.cc:6:21: error: expected initializer before '.' token
    6 |     char ch1,ch3,ch4.ch2;
      |                     ^
a.cc:8:5: error: 'ch4' was not declared in this scope; did you mean 'ch3'?
    8 |     ch4='D';
      |     ^~~
      |     ch3
a.cc:9:15: error: 'ch2' was not declared in this scope; did you mean 'ch3'?
    9 |     cin>>ch1>>ch2;
      |               ^~~
      |               ch3
Language: C++

#include <bits/stdc++.h>
#define FOR(i, m, n) for(int i = m;i < n;i++)
#define FORR(i, m, n) for(int i = m;i >= n;i--)
#define SORT(v, n) sort(v, v+n);
#define SORTR(v,n) sort(v, v+n, greater<int>());
// #define int long long
#define pb push_back
#define INF 100000000
using namespace std;
typedef long long ll;
typedef pair<int, int> pii;
typedef pair<ll, ll> pll;
typedef pair<int, pii> piii;
typedef pair<ll, pll> plll;

char c;
char s;




signed main(){


    scanf("%c", c);
    scanf("%c", s);

    if(c == 'H'){
        if(s == 'H'){
            printf("H\n");
        }else if(s == 'D'){
            printf("D\n");
        }
    }else if(c == 'D'){
        if(s == 'H'){
            printf("D\n");
        }else if(s == 'D'){
            printf("H\n");
     }



    return 0;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:44:2: error: expected '}' at end of input
   44 | }
      |  ^
a.cc:22:14: note: to match this '{'
   22 | signed main(){
      |              ^
Language: C++

#include <bits/stdc++.h>
#define FOR(i, m, n) for(int i = m;i < n;i++)
#define FORR(i, m, n) for(int i = m;i >= n;i--)
#define SORT(v, n) sort(v, v+n);
#define SORTR(v,n) sort(v, v+n, greater<int>());
// #define int long long
#define pb push_back
#define INF 100000000
using namespace std;
typedef long long ll;
typedef pair<int, int> pii;
typedef pair<ll, ll> pll;
typedef pair<int, pii> piii;
typedef pair<ll, pll> plll;

char c;
char s;




signed main(){


    scanf("%c", c);
    scanf("%c", s);

    if(c == 'H'){
        if(s == 'H'){
            printf("H\n");
        }else if(s == 'D'){
            printf("D\n");
        }
    }else if(c == 'D'){
        if(s == 'H'){
            printf("D\n");
        }else if(s == 'D'){
            printf("H\n");
        }


    return 0;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:43:2: error: expected '}' at end of input
   43 | }
      |  ^
a.cc:22:14: note: to match this '{'
   22 | signed main(){
      |              ^
Language: C

#include<stdio.h>
 
int main()
{
	char act[1],top[1];
	scanf("%1s %1s",act,top);
	if (strcmp(act,top)==0){
	printf("H\n");}else{
	printf("D\n");}
	return 0;
}

Compiler output:
main.c:2:1: error: stray '\302' in program
    2 | <U+00A0>
      | ^~~~~~~~
main.c: In function 'main':
main.c:7:13: error: implicit declaration of function 'strcmp' [-Wimplicit-function-declaration]
    7 |         if (strcmp(act,top)==0){
      |             ^~~~~~
main.c:2:1: note: include '<string.h>' or provide a declaration of 'strcmp'
    1 | #include<stdio.h>
  +++ |+#include <string.h>
    2 |
Language: C++

#include<stdio.h>
 
int main()
{
	char act[1],top[1];
	scanf("%1s %1s",act,top);
	if (strcmp(act,top)==0){
	printf("H\n");}else{
	printf("D\n");}
	return 0;
}

Compiler output:
a.cc:2:1: error: extended character   is not valid in an identifier
    2 |  
      | ^
a.cc:2:1: error: '\U000000a0' does not name a type
    2 |  
      | ^
Language: C++


#include <iostream>
#include <math.h>
using namespace std;
int main()
{
             double a,b,H,D;
             cin >> a >> b >> ;        
             if(a == H && b == H)
             {
                           cout << "H" << endl;
             }
             else if(a == H && b == D)
             {
                           cout << "D" <<  endl;
             }
             else if (a == D && b == H)
             {
                           cout << "D" << endl;
             }
             else if(a == D && b == D)
             {
                           cout << "H" << endl;
             }
}

Compiler output:
a.cc: In function 'int main()':
a.cc:8:31: error: expected primary-expression before ';' token
    8 |              cin >> a >> b >> ;
      |                               ^
Language: C

#include<stdio.h>
int main(void)
{
char a,b;
scanf("%c",&a);
scanf("%c",&b)
if(a='H'){
if(b='H')printf("H");
else printf("D");}
else{
if(b='H')printf("D");
else printf("H");}
return 0;
}

Compiler output:
main.c: In function 'main':
main.c:6:15: error: expected ';' before 'if'
    6 | scanf("%c",&b)
      |               ^
      |               ;
    7 | if(a='H'){
      | ~~
Language: C++

#include <string.h>
int W, a, b;
void solve() {
	int ans;
	if (a < b) {
		if ((b - (a + W)) < 0) {
			ans = 0;
		}
		else {
			ans = b - (a + W);
		}
	}
	else {
		if ((a - (b + W)) < 0) {
			ans = 0;
		}
		else {
			ans = a - (b + W);
		}
	}
	printf("%d\n", ans);
}

int main()
{
	// 標準入力から入力
	scanf("%d %d %d", &W, &a, &b);
	solve();
    return 0;
}


Compiler output:
a.cc: In function 'void solve()':
a.cc:21:9: error: 'printf' was not declared in this scope
   21 |         printf("%d\n", ans);
      |         ^~~~~~
a.cc:2:1: note: 'printf' is defined in header '<cstdio>'; this is probably fixable by adding '#include <cstdio>'
    1 | #include <string.h>
  +++ |+#include <cstdio>
    2 | int W, a, b;
a.cc: In function 'int main()':
a.cc:27:9: error: 'scanf' was not declared in this scope
   27 |         scanf("%d %d %d", &W, &a, &b);
      |         ^~~~~