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

#include<iostream>
using namespace std;
int main ()
{
  int x;
  cin >>x>>\n";
  cout <<x*2*3.14159265358979<<\n";
}

Compiler output:
a.cc:6:12: error: stray '\' in program
    6 |   cin >>x>>\n";
      |            ^
a.cc:6:14: warning: missing terminating " character
    6 |   cin >>x>>\n";
      |              ^
a.cc:6:14: error: missing terminating " character
    6 |   cin >>x>>\n";
      |              ^~
a.cc:7:32: error: stray '\' in program
    7 |   cout <<x*2*3.14159265358979<<\n";
      |                                ^
a.cc:7:34: warning: missing terminating " character
    7 |   cout <<x*2*3.14159265358979<<\n";
      |                                  ^
a.cc:7:34: error: missing terminating " character
    7 |   cout <<x*2*3.14159265358979<<\n";
      |                                  ^~
a.cc: In function 'int main()':
a.cc:6:13: error: 'n' was not declared in this scope
    6 |   cin >>x>>\n";
      |             ^
Language: C++

#include<iostream>
using namespace std;
int main ()
{
  int x;
  cin >>x>>\n;
  cout <<x*2*3.14159265358979<<\n;
}
  

Compiler output:
a.cc:6:12: error: stray '\' in program
    6 |   cin >>x>>\n;
      |            ^
a.cc:7:32: error: stray '\' in program
    7 |   cout <<x*2*3.14159265358979<<\n;
      |                                ^
a.cc: In function 'int main()':
a.cc:6:13: error: 'n' was not declared in this scope
    6 |   cin >>x>>\n;
      |             ^
Language: C++

#include <iostream>

using namespace std;

int main ()
{

 int pi = 3.14159265358979323846264338327950288419;
 cout << "\n";
 cin >> R;
 
 cout << "円周は" << R * 2 * pi << "です。\n";
}

Compiler output:
a.cc: In function 'int main()':
a.cc:10:9: error: 'R' was not declared in this scope
   10 |  cin >> R;
      |         ^
Language: C++

#include <iostream>
 
int main()
int R;

using namespace std;

 int pi = 3.14159265358979323846264338327950288419
 cout << "\n";
 cin >> R;
 
 cout << R * 2 * pi;


Compiler output:
a.cc:4:1: error: expected initializer before 'int'
    4 | int R;
      | ^~~
a.cc:9:2: error: expected ',' or ';' before 'cout'
    9 |  cout << "\n";
      |  ^~~~
a.cc:10:2: error: 'cin' does not name a type
   10 |  cin >> R;
      |  ^~~
a.cc:12:2: error: 'cout' does not name a type
   12 |  cout << R * 2 * pi;
      |  ^~~~
Language: C++

#include <iostream>
 
int main()
using namespace std;
{
 int R;
 int pi = 3.14159265358979323846264338327950288419;
 cout << "\n";
 cin >> R;
 
 cout << R * 2 * pi;
}

Compiler output:
a.cc:4:1: error: expected initializer before 'using'
    4 | using namespace std;
      | ^~~~~
a.cc:5:1: error: expected unqualified-id before '{' token
    5 | {
      | ^
Language: C++

#include <iostream>

int main()
int R;
using namespace std;
{
 int pi = 3.14159265358979323846264338327950288419
 cout << "\n";
 cin >> R;

 cout << R * 2 * pi;
}

Compiler output:
a.cc:4:1: error: expected initializer before 'int'
    4 | int R;
      | ^~~
a.cc:6:1: error: expected unqualified-id before '{' token
    6 | {
      | ^
Language: C

#include<iostream>
using namespace std;
int main()
{
  	int a;
  	double b,c=3.14;
  	cin<<a;
  	b=a*c;
  	cout<<b;
}

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

#include <stdio.h>
#include <math.h>
int main(){
    int R;
    scanf("%d", &R);
    printf("%lf\n",double(R*2*M_PI));
    return 0;
}

Compiler output:
main.c: In function 'main':
main.c:6:20: error: expected expression before 'double'
    6 |     printf("%lf\n",double(R*2*M_PI));
      |                    ^~~~~~
Language: C

#include <stdio.h>
#include <math.h>
int main(){
int R;
scanf("%d",&R);
printf(“%lf”,R*2*pi);
return 0;
}

Compiler output:
main.c: In function 'main':
main.c:6:8: error: stray '\342' in program
    6 | printf(<U+201C>%lf<U+201D>,R*2*pi);
      |        ^~~~~~~~
main.c:6:9: error: expected expression before '%' token
    6 | printf(“%lf”,R*2*pi);
      |         ^
main.c:6:12: error: stray '\342' in program
    6 | printf(<U+201C>%lf<U+201D>,R*2*pi);
      |                   ^~~~~~~~
Language: C

#include <stdio.h>
int main(){
int R;
scanf("%d",&R);
printf(“%lf”,R*2*3.14);
return 0;
}

Compiler output:
main.c: In function 'main':
main.c:5:8: error: stray '\342' in program
    5 | printf(<U+201C>%lf<U+201D>,R*2*3.14);
      |        ^~~~~~~~
main.c:5:9: error: expected expression before '%' token
    5 | printf(“%lf”,R*2*3.14);
      |         ^
main.c:5:12: error: stray '\342' in program
    5 | printf(<U+201C>%lf<U+201D>,R*2*3.14);
      |                   ^~~~~~~~
Language: C

#include <stdio.h>
int main(){
int R;
scanf("%d",&R);
printf(“%f”,R*2*3.14);
return 0;
}

Compiler output:
main.c: In function 'main':
main.c:5:8: error: stray '\342' in program
    5 | printf(<U+201C>%f<U+201D>,R*2*3.14);
      |        ^~~~~~~~
main.c:5:9: error: expected expression before '%' token
    5 | printf(“%f”,R*2*3.14);
      |         ^
main.c:5:11: error: stray '\342' in program
    5 | printf(<U+201C>%f<U+201D>,R*2*3.14);
      |                  ^~~~~~~~
Language: C

#include <stdio.h>
int main(){
int R;
scanf("%d",&R);
printf(“%f”,(R+R)*3.14);
return 0;
}

Compiler output:
main.c: In function 'main':
main.c:5:8: error: stray '\342' in program
    5 | printf(<U+201C>%f<U+201D>,(R+R)*3.14);
      |        ^~~~~~~~
main.c:5:9: error: expected expression before '%' token
    5 | printf(“%f”,(R+R)*3.14);
      |         ^
main.c:5:11: error: stray '\342' in program
    5 | printf(<U+201C>%f<U+201D>,(R+R)*3.14);
      |                  ^~~~~~~~
Language: C

import math
R = int(input())
print(R * 2 * math.pi)

Compiler output:
main.c:1:1: error: unknown type name 'import'
    1 | import math
      | ^~~~~~
main.c:2:1: error: expected '=', ',', ';', 'asm' or '__attribute__' before 'R'
    2 | R = int(input())
      | ^
Language: C++

using namespace std;
 
int main() {
  double r;
  cin>>r;
  cout<<(2*r*3.1415);
  return 0;
}


Compiler output:
a.cc: In function 'int main()':
a.cc:5:3: error: 'cin' was not declared in this scope
    5 |   cin>>r;
      |   ^~~
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:6:3: error: 'cout' was not declared in this scope
    6 |   cout<<(2*r*3.1415);
      |   ^~~~
a.cc:6:3: note: 'std::cout' is defined in header '<iostream>'; this is probably fixable by adding '#include <iostream>'
Language: Java

import java.util.*;

public class MIan{
  public static void main(String[] args) {
		Scanner sc = new Scanner(System.in);
		double R = sc.nextDouble();
		double x = Math.PI;
		double num = 0;
		num =R * x * 2;
		System.out.println(num);
	}
}

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

#include<stdio.h>


int main{

int num;
do{
printf(“半径Rの長さは“);  scanf(“%d”, num);

}while(num<0||num>100);


printf(“周の長さは%d”,2*3.14*num);


return 0;


}


Compiler output:
main.c:4:9: error: expected '=', ',', ';', 'asm' or '__attribute__' before '{' token
    4 | int main{
      |         ^
main.c:8:8: error: stray '\342' in program
    8 | printf(<U+201C><U+534A><U+5F84>R<U+306E><U+9577><U+3055><U+306F><U+201C>);  scanf(<U+201C>%d<U+201D>, num);
      |        ^~~~~~~~
main.c:8:22: error: stray '\342' in program
    8 | printf(<U+201C><U+534A><U+5F84>R<U+306E><U+9577><U+3055><U+306F><U+201C>);  scanf(<U+201C>%d<U+201D>, num);
      |                                                                 ^~~~~~~~
main.c:8:33: error: stray '\342' in program
    8 | printf(<U+201C><U+534A><U+5F84>R<U+306E><U+9577><U+3055><U+306F><U+201C>);  scanf(<U+201C>%d<U+201D>, num);
      |                                                                                   ^~~~~~~~
main.c:8:36: error: stray '\342' in program
    8 | printf(<U+201C><U+534A><U+5F84>R<U+306E><U+9577><U+3055><U+306F><U+201C>);  scanf(<U+201C>%d<U+201D>, num);
      |                                                                                             ^~~~~~~~
main.c:13:8: error: stray '\342' in program
   13 | printf(<U+201C><U+5468><U+306E><U+9577><U+3055><U+306F>%d<U+201D>,2*3.14*num);
      |        ^~~~~~~~
main.c:13:21: error: stray '\342' in program
   13 | printf(<U+201C><U+5468><U+306E><U+9577><U+3055><U+306F>%d<U+201D>,2*3.14*num);
      |                                                          ^~~~~~~~
Language: C

#include<stdio.h>
int main(void){
  int i len;
  scanf("%d",&i);
  len=2*i*3.14;
    printf("%d",len);
  return 0;
}

Compiler output:
main.c: In function 'main':
main.c:3:9: error: expected '=', ',', ';', 'asm' or '__attribute__' before 'len'
    3 |   int i len;
      |         ^~~
main.c:3:9: error: 'len' undeclared (first use in this function)
main.c:3:9: note: each undeclared identifier is reported only once for each function it appears in
main.c:4:15: error: 'i' undeclared (first use in this function)
    4 |   scanf("%d",&i);
      |               ^
Language: C

#include <stdio.h>
int main(void){
  double r;
  scanf("%lf",&r);
  r = r*2*3.14;
  printf("%f",r);
  return 0:
}

Compiler output:
main.c: In function 'main':
main.c:7:11: error: expected ';' before ':' token
    7 |   return 0:
      |           ^
      |           ;
Language: C

#include<stdio.h>
int main(void){
  int len i;
  scanf("%d",&i);
  len=2*i*3.14
    printf("%d",len);
  return 0;
}

Compiler output:
main.c: In function 'main':
main.c:3:11: error: expected '=', ',', ';', 'asm' or '__attribute__' before 'i'
    3 |   int len i;
      |           ^
main.c:3:11: error: 'i' undeclared (first use in this function)
main.c:3:11: note: each undeclared identifier is reported only once for each function it appears in
main.c:5:3: error: 'len' undeclared (first use in this function)
    5 |   len=2*i*3.14
      |   ^~~
main.c:5:15: error: expected ';' before 'printf'
    5 |   len=2*i*3.14
      |               ^
      |               ;
    6 |     printf("%d",len);
      |     ~~~~~~
Language: C

#include<stdio.h>
 
int main(void){
  int R;
  double X;
  double a=3.14
  scanf("%d",&R);
  X=(R*2)*a;
  printf("%d",X);
  return 0;
}

Compiler output:
main.c: In function 'main':
main.c:7:3: error: expected ',' or ';' before 'scanf'
    7 |   scanf("%d",&R);
      |   ^~~~~
Language: C

#include <stdio.h>
int main(void){
  float r;
  scanf("%lf",&r);
  r = r*2*3.14;
  printf("%f",r);
  return 0:
}

Compiler output:
main.c: In function 'main':
main.c:7:11: error: expected ';' before ':' token
    7 |   return 0:
      |           ^
      |           ;
Language: C

#include <stdio.h>
int main(void){
int r;
  double a;
  scanf("%d", &r);
  a=2*3.1415926*r
  printf("%f", a);
  return 0;
}

Compiler output:
main.c: In function 'main':
main.c:6:18: error: expected ';' before 'printf'
    6 |   a=2*3.1415926*r
      |                  ^
      |                  ;
    7 |   printf("%f", a);
      |   ~~~~~~
Language: C

/*
   学籍番号　：11970252
   名前　　　：丹羽　建太
   課題　　　：enshu1-1
   作成日　　：2020/05/24
*/
#include <stdio.h>
int main(void)
{
int R;
scanf("%d",&R);
printf("%2f",double(2*R*3.141592));
return 0;
}

Compiler output:
main.c: In function 'main':
main.c:12:14: error: expected expression before 'double'
   12 | printf("%2f",double(2*R*3.141592));
      |              ^~~~~~
Language: C++

#include<iostream>
#include<conio.h>
using namespace std;
int main()
{
    double R,circum;
    cout<<"Enter the radius of the circle : ";
    cin>>R;
    circum=2*3.14*R;
    cout<<"Circumference of the circle of radius R = "<<circum<<endl;

    getch();
}


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

include <iostream>
using namespace std;

int main() {
int R;
float pi=3.1416;
cin>>R;
double s=2*pi*R;
cout<<s<<endl;

    return 0;
}

Compiler output:
a.cc:1:1: error: 'include' does not name a type
    1 | include <iostream>
      | ^~~~~~~
a.cc: In function 'int main()':
a.cc:7:1: error: 'cin' was not declared in this scope
    7 | cin>>R;
      | ^~~
a.cc:9:1: error: 'cout' was not declared in this scope
    9 | cout<<s<<endl;
      | ^~~~
a.cc:9:10: error: 'endl' was not declared in this scope
    9 | cout<<s<<endl;
      |          ^~~~
Language: C

#include<stdio.h>
int main()
{
int R;
double C;
scanf("%d",&R);
C=2*3.1416*R;
if(R=>1 && R<=100)
printf("%lf",C);
else
return 0;
}


Compiler output:
main.c: In function 'main':
main.c:8:6: error: expected expression before '>' token
    8 | if(R=>1 && R<=100)
      |      ^
Language: C

include<stdio.h>
int main()
{
int R;
double C;
scanf("%d",&R);
C=2*3.1416*R;
if(R=>1 && R<=100)
printf("%lf",C);
else
return 0;
}


Compiler output:
main.c:1:8: error: expected '=', ',', ';', 'asm' or '__attribute__' before '<' token
    1 | include<stdio.h>
      |        ^
Language: C++

#include<iostream>
using namespace std;
int main()
{
  int r; cin >> r;
  double l;
  l = 2 * r * 2 * acos(0.0);
  cout << l << endl;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:7:19: error: 'acos' was not declared in this scope
    7 |   l = 2 * r * 2 * acos(0.0);
      |                   ^~~~
Language: C++

#include <bits/stdc++.h>
using namespace std;
int main()
  {
	int R;
	float circum;
	cin>>R;
	circum=2*pi*R;
	cout<<circum;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:8:18: error: 'pi' was not declared in this scope
    8 |         circum=2*pi*R;
      |                  ^~
Language: Java

public class Main{
	public static void main(String[] args) {
		Scanner scan = new Scanner(System.in);
		double r = scan.nextInt();
		System.out.println(r*2*3.14);
	}
}

Compiler output:
Main.java:3: error: cannot find symbol
		Scanner scan = new Scanner(System.in);
		^
  symbol:   class Scanner
  location: class Main
Main.java:3: error: cannot find symbol
		Scanner scan = new Scanner(System.in);
		                   ^
  symbol:   class Scanner
  location: class Main
2 errors
Language: Java

import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStreamReader;

public class Main {
	public static void main(String[] args) throws IOException {
		try (BufferedReader br = new BufferedReader(
				new InputStreamReader(System.in))) {

			int in = Integer.parseInt(br.readLine());
			System.out.println(in * 2 * Math.PI);
		}
	}


Compiler output:
Main.java:13: error: reached end of file while parsing
	}
	 ^
1 error
Language: Java

import java.util.Scanner;

public class Main3 {
	public static void main(String[] args) {

		Scanner sc = new Scanner(System.in);

		System.out.println(sc.nextDouble() * 2D + Math.PI);
	}

}



Compiler output:
Main.java:3: error: class Main3 is public, should be declared in a file named Main3.java
public class Main3 {
       ^
1 error
Language: Java

import java.util.*;
public class A {

  public static void main(String[] args) {
    Scanner s = new Scanner(System.in);
    int r = s.nextInt();
    System.out.println(Math.PI * 2 * r);

  }

}

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

#include<stdio.h>

int main(void){

  int i;





  scanf("%d", &i);



    printf(2*i*3.14);




  return 0;
}


Compiler output:
main.c: In function 'main':
main.c:15:15: error: incompatible type for argument 1 of 'printf'
   15 |     printf(2*i*3.14);
      |            ~~~^~~~~
      |               |
      |               double
In file included from main.c:1:
/usr/include/stdio.h:363:43: note: expected 'const char * restrict' but argument is of type 'double'
  363 | extern int printf (const char *__restrict __format, ...);
      |                    ~~~~~~~~~~~~~~~~~~~~~~~^~~~~~~~
Language: C++

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

int main() {
  double R;
  cin >> R;
  
  cout << R * 2 * 3.1415926
}


Compiler output:
a.cc: In function 'int main()':
a.cc:8:28: error: expected ';' before '}' token
    8 |   cout << R * 2 * 3.1415926
      |                            ^
      |                            ;
    9 | }
      | ~
Language: C++

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

int main(){
	int r;
  	cin >> r;
  	
  	cout << fix << setprecision << 2*r*3.1415 << endl; 
}

Compiler output:
a.cc: In function 'int main()':
a.cc:9:17: error: 'fix' was not declared in this scope
    9 |         cout << fix << setprecision << 2*r*3.1415 << endl;
      |                 ^~~
Language: C++

#include <iostream>
using namespace std; 

int main(){
	int r;
  	cin >> r;
  	
  	int d = 2*r;
  	cout << fix << setprecision(2) << 3.1415*d << endl; 
}

Compiler output:
a.cc: In function 'int main()':
a.cc:9:17: error: 'fix' was not declared in this scope
    9 |         cout << fix << setprecision(2) << 3.1415*d << endl;
      |                 ^~~
a.cc:9:24: error: 'setprecision' was not declared in this scope
    9 |         cout << fix << setprecision(2) << 3.1415*d << endl;
      |                        ^~~~~~~~~~~~
a.cc:2:1: note: 'std::setprecision' is defined in header '<iomanip>'; this is probably fixable by adding '#include <iomanip>'
    1 | #include <iostream>
  +++ |+#include <iomanip>
    2 | using namespace std;
Language: Java


package exception_handling;

import static java.lang.Math.PI;
import java.util.Scanner;

public class circle {
    
    public static void main(String[] args){
        
        Scanner input = new Scanner(System.in);
        double r , area;
        
        //System.out.print("Enter radious: ");
        r = input.nextDouble();
        
        area = 2*PI*r;
        System.out.println(area);
    }
}


Compiler output:
Main.java:7: error: class circle is public, should be declared in a file named circle.java
public class circle {
       ^
1 error
Language: C++

#include<bits/stdc++.h>
using namespace std;
#define ll long long
int main(){
	ll r; cin>>r;
	cout<<2.0* 3.141592653589793238*(double)r<<endl
}


Compiler output:
a.cc: In function 'int main()':
a.cc:6:56: error: expected ';' before '}' token
    6 |         cout<<2.0* 3.141592653589793238*(double)r<<endl
      |                                                        ^
      |                                                        ;
    7 | }
      | ~
Language: C++

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

int main() {
  int r;
  cin>>r;
  const double pi*acos(-1.0);
  double ans = 2*r*pi;
  cout<<(setprecision(20))ans<<endl;
  return 0;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:7:3: error: 'cin' was not declared in this scope; did you mean 'std::cin'?
    7 |   cin>>r;
      |   ^~~
      |   std::cin
In file included from a.cc:1:
/usr/include/c++/14/iostream:62:18: note: 'std::cin' declared here
   62 |   extern istream cin;           ///< Linked to standard input
      |                  ^~~
a.cc:8:18: error: expected initializer before '*' token
    8 |   const double pi*acos(-1.0);
      |                  ^
a.cc:9:20: error: 'pi' was not declared in this scope
    9 |   double ans = 2*r*pi;
      |                    ^~
a.cc:10:3: error: 'cout' was not declared in this scope; did you mean 'std::cout'?
   10 |   cout<<(setprecision(20))ans<<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:10:10: error: 'setprecision' was not declared in this scope; did you mean 'std::setprecision'?
   10 |   cout<<(setprecision(20))ans<<endl;
      |          ^~~~~~~~~~~~
      |          std::setprecision
In file included from a.cc:3:
/usr/include/c++/14/iomanip:202:3: note: 'std::setprecision' declared here
  202 |   setprecision(int __n)
      |   ^~~~~~~~~~~~
Language: Java

import java.util.AbstractList;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.Collections;
import java.util.Comparator;
import java.util.List;
import java.util.PriorityQueue;
import java.util.Scanner;
import java.util.Iterator;
import java.util.Set;
import java.util.Stack;
import java.util.Vector;
import java.util.HashSet;

 public class  CirclePond {
	 
	public static void main(String[] args) {
		Scanner input = new Scanner(System.in);
	    
		//inputs
		 
		int r = input.nextInt();
		
		System.out.println(2 * Math.PI * r);
	}
 }

Compiler output:
Main.java:15: error: class CirclePond is public, should be declared in a file named CirclePond.java
 public class  CirclePond {
        ^
1 error
Language: Java

import java.util.AbstractList;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.Collections;
import java.util.Comparator;
import java.util.List;
import java.util.PriorityQueue;
import java.util.Scanner;
import java.util.Iterator;
import java.util.Set;
import java.util.Stack;
import java.util.Vector;
import java.util.HashSet;

 public class ProblemA {
	 
	public static void main(String[] args) {
		Scanner input = new Scanner(System.in);
	    
		//inputs
		 
		int r = input.nextInt();
		
		System.out.println(2 * Math.PI * r);
	}
 }

Compiler output:
Main.java:15: error: class ProblemA is public, should be declared in a file named ProblemA.java
 public class ProblemA {
        ^
1 error
Language: C++

#include<iostream>
using namespace std;
int main()
{
  int r;cin>>r;
  double pi = 3.14;
  double ans = 2*pi*r;
  cout<<fixed<<setprecision(20)<<ans;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:8:16: error: 'setprecision' was not declared in this scope
    8 |   cout<<fixed<<setprecision(20)<<ans;
      |                ^~~~~~~~~~~~
a.cc:2:1: note: 'std::setprecision' is defined in header '<iomanip>'; this is probably fixable by adding '#include <iomanip>'
    1 | #include<iostream>
  +++ |+#include <iomanip>
    2 | using namespace std;
Language: C

import numpy as np

e=input()
num=int(e)
print(num*2*np.pi)

Compiler output:
main.c:1:1: error: unknown type name 'import'
    1 | import numpy as np
      | ^~~~~~
main.c:1:14: error: expected '=', ',', ';', 'asm' or '__attribute__' before 'as'
    1 | import numpy as np
      |              ^~
main.c:1:14: error: unknown type name 'as'
Language: C++

#include <stdc++.h>
using namespace std;
int main () {
  int R;
  cin >> R;
  cout << 2 * 3.1416 * R << endl;
}

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

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

int main () {
  int R;
  cin >> R;
  cout << 3.1415 * R << endl;
}
  

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

#include <bits/stdc++.h>
#define rep(i,n) for (int i=0;i<(n);++i)
using namespace std;
 
int main(){
  double r;
  cin >> r;
  cout << r*2*3.14
}

Compiler output:
a.cc: In function 'int main()':
a.cc:8:19: error: expected ';' before '}' token
    8 |   cout << r*2*3.14
      |                   ^
      |                   ;
    9 | }
      | ~
Language: C++

#include <bits/stdc++.h>
#define rep(i,n) for (int i=0;i<(n);++i)
using namespace std;
 
int main(){
 int r;
  cin >> r;
  cout << r*r*3.14
}

Compiler output:
a.cc: In function 'int main()':
a.cc:8:19: error: expected ';' before '}' token
    8 |   cout << r*r*3.14
      |                   ^
      |                   ;
    9 | }
      | ~
Language: C

#include<stdio.h>
int main(void)
{
	double l;
	int r;
	scanf("%d",&r);
	l=r*2*3.14;
	printf("%lf\n"l);
	return 0;
}

Compiler output:
main.c: In function 'main':
main.c:8:23: error: expected ')' before 'l'
    8 |         printf("%lf\n"l);
      |               ~       ^
      |                       )
Language: C

#intclude<stdio.h>
int main(void)
{
	double l;
	int r;
	scanf("%d",&r);
	i=r*2*3.14;
	printf("%lf\n",i);
	return 0;
}

Compiler output:
main.c:1:2: error: invalid preprocessing directive #intclude; did you mean #include?
    1 | #intclude<stdio.h>
      |  ^~~~~~~~
      |  include
main.c: In function 'main':
main.c:6:9: error: implicit declaration of function 'scanf' [-Wimplicit-function-declaration]
    6 |         scanf("%d",&r);
      |         ^~~~~
main.c:1:1: note: include '<stdio.h>' or provide a declaration of 'scanf'
  +++ |+#include <stdio.h>
    1 | #intclude<stdio.h>
main.c:6:9: warning: incompatible implicit declaration of built-in function 'scanf' [-Wbuiltin-declaration-mismatch]
    6 |         scanf("%d",&r);
      |         ^~~~~
main.c:6:9: note: include '<stdio.h>' or provide a declaration of 'scanf'
main.c:7:9: error: 'i' undeclared (first use in this function)
    7 |         i=r*2*3.14;
      |         ^
main.c:7:9: note: each undeclared identifier is reported only once for each function it appears in
main.c:8:9: error: implicit declaration of function 'printf' [-Wimplicit-function-declaration]
    8 |         printf("%lf\n",i);
      |         ^~~~~~
main.c:8:9: note: include '<stdio.h>' or provide a declaration of 'printf'
main.c:8:9: warning: incompatible implicit declaration of built-in function 'printf' [-Wbuiltin-declaration-mismatch]
main.c:8:9: note: include '<stdio.h>' or provide a declaration of 'printf'
Language: C++

#include <iostream>


using namespace std;

float PI = 3.14;

int main() {
   // Declare Variables
   float ci;
   int r;
  cin>>r;

  

   ci = 2 * PI * radius;

   cout << ci;

   return (0);
}


Compiler output:
a.cc: In function 'int main()':
a.cc:16:18: error: 'radius' was not declared in this scope
   16 |    ci = 2 * PI * radius;
      |                  ^~~~~~
Language: C++

#include <iostream>
#include<conio.h>
#include<stdlib.h>

using namespace std;

float PI = 3.14;

int main() {
   // Declare Variables
   float ci;
   int r;
  cin>>r;

  

   ci = 2 * PI * radius;

   cout << ci;

   return (0);
}

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

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

int main()
{
  double r;
  cin>>r;
  cout<<2*acos(-1)*r<<endl;
}

Compiler output:
a.cc:2:10: error: #include expects "FILENAME" or <FILENAME>
    2 | #include math.h
      |          ^~~~
Language: C++

#include<iostream>
using namespace std;
Int main(){
double pi=3.1415926535;
double a;
cin>>a;
cout<<pi*a*a;
return 0;}

Compiler output:
a.cc:3:1: error: 'Int' does not name a type; did you mean 'int'?
    3 | Int main(){
      | ^~~
      | int
Language: C++

#include<queue>
#include<math.h>
#include<stack>
#include<set>
#include<map>
#define INF 2e9
#define rep(i,n,m) for(int i=n;i<m;i++)

using namespace std;

int main()
{
	int n;
	cin >> n;
	cout << 2 * n * acos(-1) << endl;

	return 0;
}


Compiler output:
a.cc: In function 'int main()':
a.cc:14:9: error: 'cin' was not declared in this scope
   14 |         cin >> n;
      |         ^~~
a.cc:6:1: note: 'std::cin' is defined in header '<iostream>'; this is probably fixable by adding '#include <iostream>'
    5 | #include<map>
  +++ |+#include <iostream>
    6 | #define INF 2e9
a.cc:15:9: error: 'cout' was not declared in this scope
   15 |         cout << 2 * n * acos(-1) << endl;
      |         ^~~~
a.cc:15:9: note: 'std::cout' is defined in header '<iostream>'; this is probably fixable by adding '#include <iostream>'
a.cc:15:37: error: 'endl' was not declared in this scope
   15 |         cout << 2 * n * acos(-1) << endl;
      |                                     ^~~~
a.cc:6:1: note: 'std::endl' is defined in header '<ostream>'; this is probably fixable by adding '#include <ostream>'
    5 | #include<map>
  +++ |+#include <ostream>
    6 | #define INF 2e9
Language: C++

#include <iostream>
using namespace std;

int R;

int main(){
  cin >> R;
  cout << R * 3.14 

Compiler output:
a.cc: In function 'int main()':
a.cc:8:19: error: expected ';' at end of input
    8 |   cout << R * 3.14
      |                   ^
      |                   ;
a.cc:8:19: error: expected '}' at end of input
a.cc:6:11: note: to match this '{'
    6 | int main(){
      |           ^
Language: C

#include<stdio.h>
 
int main()
{
  int n;
  int b;
  int a[200000] = {0};
 
  scanf("%d", &n);
  
  for(int i=0; i < n; i++){
    scanf("%d", &b);
    a[b] += 1;
  }
 
  for(i = 0; i < n; i++) {
    printf("%d", a[i]);
  }
 
  return 0;
}


Compiler output:
main.c: In function 'main':
main.c:16:7: error: 'i' undeclared (first use in this function)
   16 |   for(i = 0; i < n; i++) {
      |       ^
main.c:16:7: note: each undeclared identifier is reported only once for each function it appears in
Language: C

#include <stdio.h>

int main() {
  int r;
    scanf("%d",&r);

    printf("%f", 2 * 3.141592654 * R);

    return 0;
}


Compiler output:
main.c: In function 'main':
main.c:7:36: error: 'R' undeclared (first use in this function)
    7 |     printf("%f", 2 * 3.141592654 * R);
      |                                    ^
main.c:7:36: note: each undeclared identifier is reported only once for each function it appears in
Language: C++

#include <iostream>
#include <math.h>
int main(){
  int r;
  std::cin>>r;
  float area;
  area=Pi*pow(r,2);
  std::cout<<area;
  return 0;
}


Compiler output:
a.cc: In function 'int main()':
a.cc:7:8: error: 'Pi' was not declared in this scope
    7 |   area=Pi*pow(r,2);
      |        ^~
Language: C++

#include <ioostream>
#include <math.h>
int main(){
  int r;
  std::cin>>r;
  float area;
  area=Pi*pow(r,2);
  std::cout<<area;
  return 0;
}

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

#include<iostream>
int main(){
  int r;
  cin>>r;
  float area;
  area=3.14*r*r;
  cout<<area;
  return 0;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:4:3: error: 'cin' was not declared in this scope; did you mean 'std::cin'?
    4 |   cin>>r;
      |   ^~~
      |   std::cin
In file included from a.cc:1:
/usr/include/c++/14/iostream:62:18: note: 'std::cin' declared here
   62 |   extern istream cin;           ///< Linked to standard input
      |                  ^~~
a.cc:7:3: error: 'cout' was not declared in this scope; did you mean 'std::cout'?
    7 |   cout<<area;
      |   ^~~~
      |   std::cout
/usr/include/c++/14/iostream:63:18: note: 'std::cout' declared here
   63 |   extern ostream cout;          ///< Linked to standard output
      |                  ^~~~
Language: C++

#include <bits/stdc++.h>
using namespace std;
typedef long long  ll;
int main(){
  cin>>r;
  cout<<r*3.141<<endl;
//    cout << fixed << setprecision(10);
}


Compiler output:
a.cc: In function 'int main()':
a.cc:5:8: error: 'r' was not declared in this scope
    5 |   cin>>r;
      |        ^
Language: C

#include<stdio.h>
int main()
{
    int R;
    double circumference ;
    scanf("%d", &R) ;
    int circumference  = 2*3.1416*R ;
    printf("%lf\n", circumference );
    return 0;
}

Compiler output:
main.c: In function 'main':
main.c:7:9: error: conflicting types for 'circumference'; have 'int'
    7 |     int circumference  = 2*3.1416*R ;
      |         ^~~~~~~~~~~~~
main.c:5:12: note: previous declaration of 'circumference' with type 'double'
    5 |     double circumference ;
      |            ^~~~~~~~~~~~~
Language: C

#include<stdio.h>
int main()
{
    int R;
    double circumference ;
    scanf("%d", &R) ;
    ccircumference  = 2*3.1416*R ;
    printf("%lf\n", c);
    return 0;
}

Compiler output:
main.c: In function 'main':
main.c:7:5: error: 'ccircumference' undeclared (first use in this function); did you mean 'circumference'?
    7 |     ccircumference  = 2*3.1416*R ;
      |     ^~~~~~~~~~~~~~
      |     circumference
main.c:7:5: note: each undeclared identifier is reported only once for each function it appears in
main.c:8:21: error: 'c' undeclared (first use in this function)
    8 |     printf("%lf\n", c);
      |                     ^
Language: C

#include <stdio.h>
int main()
{
    int R ;
    scanf("%d", &R);
    circumference =2*3.1416*R;
    printf("%d",circumference);
    return 0;
}


Compiler output:
main.c: In function 'main':
main.c:6:5: error: 'circumference' undeclared (first use in this function)
    6 |     circumference =2*3.1416*R;
      |     ^~~~~~~~~~~~~
main.c:6:5: note: each undeclared identifier is reported only once for each function it appears in
Language: C

#include <stdio.h>
int main()
{
    int R ;
    scanf("%d", &R);
    circumference =2*2.1416*R ;
    printf("%d",circumference);
    return 0;
}


Compiler output:
main.c: In function 'main':
main.c:6:5: error: 'circumference' undeclared (first use in this function)
    6 |     circumference =2*2.1416*R ;
      |     ^~~~~~~~~~~~~
main.c:6:5: note: each undeclared identifier is reported only once for each function it appears in
Language: C

#include <stdio.h>
int main()
{
    int R ;
    scanf("%d", &R);
    circumference = 2*3.14*R;
    printf("%d",circumference);
    return 0;
}

Compiler output:
main.c: In function 'main':
main.c:6:5: error: 'circumference' undeclared (first use in this function)
    6 |     circumference = 2*3.14*R;
      |     ^~~~~~~~~~~~~
main.c:6:5: note: each undeclared identifier is reported only once for each function it appears in
Language: C

#include <stdio.h>
int main()
{
    int R ;
    scanf("%d", &R);
    circumference of a circle of radius R;
    printf("%d",circumference);
    return 0;
}

Compiler output:
main.c: In function 'main':
main.c:6:5: error: unknown type name 'circumference'
    6 |     circumference of a circle of radius R;
      |     ^~~~~~~~~~~~~
main.c:6:22: error: expected '=', ',', ';', 'asm' or '__attribute__' before 'a'
    6 |     circumference of a circle of radius R;
      |                      ^
main.c:7:17: error: 'circumference' undeclared (first use in this function)
    7 |     printf("%d",circumference);
      |                 ^~~~~~~~~~~~~
main.c:7:17: note: each undeclared identifier is reported only once for each function it appears in
Language: C

#include <stdio.h>
int main()
{
    int R, radius ;
    scanf("%d", &R);
    circumference of a circle of radius ;
    printf("%d\n", radius);
    return 0;
}

Compiler output:
main.c: In function 'main':
main.c:6:5: error: unknown type name 'circumference'
    6 |     circumference of a circle of radius ;
      |     ^~~~~~~~~~~~~
main.c:6:22: error: expected '=', ',', ';', 'asm' or '__attribute__' before 'a'
    6 |     circumference of a circle of radius ;
      |                      ^
Language: C

#include <stdio.h>
int main()
{
    int R ;
    scanf("%d", &R);
    radius ;
    printf("%d\n", radius);
    return 0;
}

Compiler output:
main.c: In function 'main':
main.c:6:5: error: 'radius' undeclared (first use in this function)
    6 |     radius ;
      |     ^~~~~~
main.c:6:5: note: each undeclared identifier is reported only once for each function it appears in
Language: C

#include <stdio.h>
int main()
{
    int R = 20 ;
    scanf("%d", &R);
    radius ;
    printf("%d\n", radius);
    return 0;
}

Compiler output:
main.c: In function 'main':
main.c:6:5: error: 'radius' undeclared (first use in this function)
    6 |     radius ;
      |     ^~~~~~
main.c:6:5: note: each undeclared identifier is reported only once for each function it appears in
Language: C

#include <stdio.h>
int main()
{
    int 20 ;
    scanf("%d", &20);
    radius
    printf("%d\n", radius);
    return 0;
}

Compiler output:
main.c: In function 'main':
main.c:4:9: error: expected identifier or '(' before numeric constant
    4 |     int 20 ;
      |         ^~
main.c:5:17: error: lvalue required as unary '&' operand
    5 |     scanf("%d", &20);
      |                 ^
main.c:6:5: error: unknown type name 'radius'
    6 |     radius
      |     ^~~~~~
main.c:7:12: error: expected declaration specifiers or '...' before string constant
    7 |     printf("%d\n", radius);
      |            ^~~~~~
main.c:7:20: error: unknown type name 'radius'
    7 |     printf("%d\n", radius);
      |                    ^~~~~~
Language: C++

#include <bits/stdc++.h>
#define PI 3.1415926535897932384626
using namespace std;

int main(){
	int n;
  	cin >> n;
  	long double ans = 2*PI*(r*r);
  	cout <<fixed << setprecision(12);
  	cout << ans <<endl;


}

Compiler output:
a.cc: In function 'int main()':
a.cc:8:33: error: 'r' was not declared in this scope
    8 |         long double ans = 2*PI*(r*r);
      |                                 ^
Language: C++

int r =0;
cin>>r;
cout<<r*2*3.14159265359;

Compiler output:
a.cc:2:1: error: 'cin' does not name a type
    2 | cin>>r;
      | ^~~
a.cc:3:1: error: 'cout' does not name a type
    3 | cout<<r*2*3.14159265359;
      | ^~~~
Language: Java

import java.util.Scanner;
public class Main {
 
	public static void main(String[] args) {
		  Scanner sc = new Scanner(System.in);
	         int n = sc.nextInt();
      		 int m = sc.nextInt();
      		 int a =0;
        for(int i=0; i<m; i++){
           a += sc.nextInt();
        }
      if(n>=a){
      System.out.println(n-a);
      }else
        System.out.println('-1');
    }
    }
}

Compiler output:
Main.java:15: error: unclosed character literal
        System.out.println('-1');
                           ^
Main.java:15: error: unclosed character literal
        System.out.println('-1');
                              ^
Main.java:18: error: class, interface, enum, or record expected
}
^
3 errors
Language: C

#include<stdio.h>
int main(void) {
  int r;
  double i = 3.14,enshu;
 
  scanf("%d", &r);
  answer = 2 * i * r;
  printf("%f", enshu);
 
  return 0;
}

Compiler output:
main.c: In function 'main':
main.c:7:3: error: 'answer' undeclared (first use in this function)
    7 |   answer = 2 * i * r;
      |   ^~~~~~
main.c:7:3: note: each undeclared identifier is reported only once for each function it appears in
Language: C

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

int main(void){
  
  double r;
  
  scanf("%lf", %r);
  
  printf("%lf", 2*r*M_PI);
  
  return0;
}

Compiler output:
main.c: In function 'main':
main.c:8:16: error: expected expression before '%' token
    8 |   scanf("%lf", %r);
      |                ^
main.c:12:3: error: 'return0' undeclared (first use in this function)
   12 |   return0;
      |   ^~~~~~~
main.c:12:3: note: each undeclared identifier is reported only once for each function it appears in
Language: C

#include<stdio.h>

int main()
{
  float r;

  scanf("%f", &r);

  printf("%f", 2 * r * 3.14)

  return 0;
}

Compiler output:
main.c: In function 'main':
main.c:9:29: error: expected ';' before 'return'
    9 |   printf("%f", 2 * r * 3.14)
      |                             ^
      |                             ;
   10 | 
   11 |   return 0;
      |   ~~~~~~
Language: C

#include<stdio.h>

int main()
{
  int r;

  scanf("%d", &r);

  printf("%d", 2 * r * 3.14)

  return 0;
}

Compiler output:
main.c: In function 'main':
main.c:9:29: error: expected ';' before 'return'
    9 |   printf("%d", 2 * r * 3.14)
      |                             ^
      |                             ;
   10 | 
   11 |   return 0;
      |   ~~~~~~
Language: C++

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

int main(){
  int R;
  cin >> R;
  
  const double pi = acos(-1.0)
    
  double answer = 2 * R * pi;
  
  cout << setprecision(20) << fixed << answer << endl;
}


Compiler output:
a.cc: In function 'int main()':
a.cc:10:3: error: expected ',' or ';' before 'double'
   10 |   double answer = 2 * R * pi;
      |   ^~~~~~
a.cc:12:40: error: 'answer' was not declared in this scope
   12 |   cout << setprecision(20) << fixed << answer << endl;
      |                                        ^~~~~~
Language: C++

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

int main(){
  int R;
  cin >> R;
  
  const double pi = acos(-1.0)
    
  double answer = 2 * R * pi;
  
  cout << serprecision(20) << fixed << answer << endl;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:10:3: error: expected ',' or ';' before 'double'
   10 |   double answer = 2 * R * pi;
      |   ^~~~~~
a.cc:12:11: error: 'serprecision' was not declared in this scope
   12 |   cout << serprecision(20) << fixed << answer << endl;
      |           ^~~~~~~~~~~~
a.cc:12:40: error: 'answer' was not declared in this scope
   12 |   cout << serprecision(20) << fixed << answer << endl;
      |                                        ^~~~~~
Language: Java

public class Main {

	public static void main(String[] args) {
			FastScanner fsc = new FastScanner();

			int Radius = fsc.nextInt();

			int  Diameter = Radius * 2;
			//Math.PIは円周率定数
			double anser = Diameter * Math.PI;
			System.out.println(anser);

	}

}


Compiler output:
Main.java:4: error: cannot find symbol
			FastScanner fsc = new FastScanner();
			^
  symbol:   class FastScanner
  location: class Main
Main.java:4: error: cannot find symbol
			FastScanner fsc = new FastScanner();
			                      ^
  symbol:   class FastScanner
  location: class Main
2 errors
Language: Java

import java.util.Scanner;

public class Main {

	public static void main(String[] args) {
		// TODO 自動生成されたメソッド・スタブ

		Scanner scanner = new Scanner(System.in);

		double R = scanner.nextDouble();

		double answer = 2 * R * Math.PI;

		System.out.println(answer);

		scanner.close();

	}

Compiler output:
Main.java:18: error: reached end of file while parsing
	}
	 ^
1 error
Language: Java

public class Main {

	public static void main(String[] args) {
		// TODO 自動生成されたメソッド・スタブ

		Scanner scanner = new Scanner(System.in);

		double R = scanner.nextDouble();

		double answer = 2 * R * Math.PI;

		System.out.println(answer);

		scanner.close();

	}
}

Compiler output:
Main.java:6: error: cannot find symbol
		Scanner scanner = new Scanner(System.in);
		^
  symbol:   class Scanner
  location: class Main
Main.java:6: error: cannot find symbol
		Scanner scanner = new Scanner(System.in);
		                      ^
  symbol:   class Scanner
  location: class Main
2 errors
Language: C++

#include <iostream>
#include <cmath>
 
int main()
{
  int R;
  std::cin >> R >> endl;
  double Pi = acos(-1.0);
  std::cout << 2.0 * R * Pi << std::endl;
  return 0;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:7:20: error: 'endl' was not declared in this scope; did you mean 'std::endl'?
    7 |   std::cin >> R >> endl;
      |                    ^~~~
      |                    std::endl
In file included from /usr/include/c++/14/iostream:41,
                 from a.cc:1:
/usr/include/c++/14/ostream:744:5: note: 'std::endl' declared here
  744 |     endl(basic_ostream<_CharT, _Traits>& __os)
      |     ^~~~
Language: C++

#include <iostream>
#include <cmath>
 
int main()
{
  int R;
  cin >> R >> endl;
  double Pi = acos(-1.0);
  std::cout << 2.0 * R * Pi << std::endl;
  return 0;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:7:3: error: 'cin' was not declared in this scope; did you mean 'std::cin'?
    7 |   cin >> R >> endl;
      |   ^~~
      |   std::cin
In file included from a.cc:1:
/usr/include/c++/14/iostream:62:18: note: 'std::cin' declared here
   62 |   extern istream cin;           ///< Linked to standard input
      |                  ^~~
a.cc:7:15: error: 'endl' was not declared in this scope; did you mean 'std::endl'?
    7 |   cin >> R >> 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)
      |     ^~~~
Language: C++

#include <iostream>
#include <cmath>

int main()
{
  int R;
  cin >> R >> endl;
  double Pi = acos(-1.0);
  cout << 2.0 * R * Pi << endl;
  return 0;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:7:3: error: 'cin' was not declared in this scope; did you mean 'std::cin'?
    7 |   cin >> R >> endl;
      |   ^~~
      |   std::cin
In file included from a.cc:1:
/usr/include/c++/14/iostream:62:18: note: 'std::cin' declared here
   62 |   extern istream cin;           ///< Linked to standard input
      |                  ^~~
a.cc:7:15: error: 'endl' was not declared in this scope; did you mean 'std::endl'?
    7 |   cin >> R >> 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:9:3: error: 'cout' was not declared in this scope; did you mean 'std::cout'?
    9 |   cout << 2.0 * R * Pi << endl;
      |   ^~~~
      |   std::cout
/usr/include/c++/14/iostream:63:18: note: 'std::cout' declared here
   63 |   extern ostream cout;          ///< Linked to standard output
      |                  ^~~~
Language: C++

#include <bits/stdc++.h>
#include <math.h>
#define rep(i,n) for (int i=0;i < (n); ++i)
#define ALL(x) (x).begin(), (x).end()
using namespace std;
using ll = long long;
 
 
int main() {
    float n;
    cin >> n;
    cout << 2*n*3.1415 << endl
}

Compiler output:
a.cc: In function 'int main()':
a.cc:12:31: error: expected ';' before '}' token
   12 |     cout << 2*n*3.1415 << endl
      |                               ^
      |                               ;
   13 | }
      | ~
Language: C

#include <stdio.h>
#define _USE_MATH_DEFINES
#include <math.h>

void CountCircumReference()
{
	long double circleRadius, circumReference;
	while (1)
	{
		scanf("%Lf", &circleRadius);
		if (circleRadius <= 100 && circleRadius >= 1)
		{
			break;
		}
		printf_s("Wrong input \n");
	}

	circumReference = 2 * M_PI * circleRadius;
	printf("%Lf \n", circumReference);

	return;
}

int main(int argc, const char* argv[])
{
	CountCircumReference();

	return 0;
}

Compiler output:
main.c: In function 'CountCircumReference':
main.c:15:17: error: implicit declaration of function 'printf_s'; did you mean 'printf'? [-Wimplicit-function-declaration]
   15 |                 printf_s("Wrong input \n");
      |                 ^~~~~~~~
      |                 printf
Language: C

#define _USE_MATH_DEFINES
#define __STDC_WANT_LIB_EXT1__ 1
#include <stdio.h>
#include <math.h>
 
void CountCircumReference()
{
	long double circleRadius, circumReference;
	while (1)
	{
		printf_s("Enter the radius of the cirlce \n");
		scanf("%Lf", &circleRadius);
		if (circleRadius <= 100 && circleRadius >= 1)
		{
			break;
		}
		printf_s("Wrong input \n");
	}
 
	circumReference = 2 * M_PI * circleRadius;
	printf_s("%Lf \n", circumReference);
 
	return;
}
 
int main(int argc, const char* argv[])
{
	CountCircumReference();
 
	return 0;
}

Compiler output:
main.c: In function 'CountCircumReference':
main.c:11:17: error: implicit declaration of function 'printf_s'; did you mean 'printf'? [-Wimplicit-function-declaration]
   11 |                 printf_s("Enter the radius of the cirlce \n");
      |                 ^~~~~~~~
      |                 printf