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

#include<cmath> #include<cstdio> 
int main(){ double r; scanf("%lf",&r); printf("%.7f %.7f\n",pow(r,2)*M_PI,2*r*M_PI); } 


Compiler output:
main.c:1:17: warning: extra tokens at end of #include directive
    1 | #include<cmath> #include<cstdio>
      |                 ^
main.c:1:9: fatal error: cmath: No such file or directory
    1 | #include<cmath> #include<cstdio>
      |         ^~~~~~~
compilation terminated.
Language: C

#include <stdio.h> double a;
double pi=3.14159265358979323846; 
int main(void) { scanf("%lf",&a); double c=a*a*pi; 
double d=a*2*pi;
 printf("%f %f\n",c,d); 
return 0; } 


Compiler output:
main.c:1:20: warning: extra tokens at end of #include directive
    1 | #include <stdio.h> double a;
      |                    ^~~~~~
main.c: In function 'main':
main.c:3:31: error: 'a' undeclared (first use in this function)
    3 | int main(void) { scanf("%lf",&a); double c=a*a*pi;
      |                               ^
main.c:3:31: note: each undeclared identifier is reported only once for each function it appears in
Language: C

double r;
  scanf("%lf",&r);
  printf("%.7f %.7f\n",pow(r,2)*M_PI,2*r*M_PI);
}


Compiler output:
main.c:2:9: error: expected declaration specifiers or '...' before string constant
    2 |   scanf("%lf",&r);
      |         ^~~~~
main.c:2:15: error: expected declaration specifiers or '...' before '&' token
    2 |   scanf("%lf",&r);
      |               ^
main.c:3:10: error: expected declaration specifiers or '...' before string constant
    3 |   printf("%.7f %.7f\n",pow(r,2)*M_PI,2*r*M_PI);
      |          ^~~~~~~~~~~~~
main.c:3:24: error: unknown type name 'pow'
    3 |   printf("%.7f %.7f\n",pow(r,2)*M_PI,2*r*M_PI);
      |                        ^~~
main.c:3:38: error: expected declaration specifiers or '...' before numeric constant
    3 |   printf("%.7f %.7f\n",pow(r,2)*M_PI,2*r*M_PI);
      |                                      ^
main.c:4:1: error: expected identifier or '(' before '}' token
    4 | }
      | ^
Language: C

#include <stdio.h>

int main(){
    int r;
    double pi = 3.141592653589
    scanf("%d",&r);
    
    printf("%lf %lf\n",(double)r*2*pi,(double)r*r*pi);
    
    return 0;
}


Compiler output:
main.c: In function 'main':
main.c:6:5: error: expected ',' or ';' before 'scanf'
    6 |     scanf("%d",&r);
      |     ^~~~~
Language: C

#include<stdio.h>
#include<cmath>

main(){
double r;
double p = acos(-1);
scanf("%lf", &r);
printf("%f %f\n", p*r*r, 2*pIr);
return 0;
}

Compiler output:
main.c:2:9: fatal error: cmath: No such file or directory
    2 | #include<cmath>
      |         ^~~~~~~
compilation terminated.
Language: C

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

main(){
double r;
double p = acos(-1);
scanf("%lf", &r);
printf("%f %f\n", p*r*r, 2*pIr);
return 0;
}

Compiler output:
main.c:4:1: error: return type defaults to 'int' [-Wimplicit-int]
    4 | main(){
      | ^~~~
main.c: In function 'main':
main.c:8:28: error: 'pIr' undeclared (first use in this function)
    8 | printf("%f %f\n", p*r*r, 2*pIr);
      |                            ^~~
main.c:8:28: note: each undeclared identifier is reported only once for each function it appears in
Language: C

#include<stdio.h>

int main(){
    int r,pai = 3.1415926
    double l,s;
    
    scanf("%d",&r);
    l = 2*pai*r;
    s = pai*r*r;
    printf("%f"" ""%f",l,s);
    return 0;
}

Compiler output:
main.c: In function 'main':
main.c:5:5: error: expected ',' or ';' before 'double'
    5 |     double l,s;
      |     ^~~~~~
main.c:8:5: error: 'l' undeclared (first use in this function)
    8 |     l = 2*pai*r;
      |     ^
main.c:8:5: note: each undeclared identifier is reported only once for each function it appears in
main.c:9:5: error: 's' undeclared (first use in this function)
    9 |     s = pai*r*r;
      |     ^
Language: C

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

int main(int argc, char* argv[])
{
  double r;
  scanf("%lf", &r);
  printf("%.6lf %.6lf\n", r*r*PI, 2*r*PT);
  return(0);
}

Compiler output:
main.c: In function 'main':
main.c:8:31: error: 'PI' undeclared (first use in this function)
    8 |   printf("%.6lf %.6lf\n", r*r*PI, 2*r*PT);
      |                               ^~
main.c:8:31: note: each undeclared identifier is reported only once for each function it appears in
main.c:8:39: error: 'PT' undeclared (first use in this function)
    8 |   printf("%.6lf %.6lf\n", r*r*PI, 2*r*PT);
      |                                       ^~
Language: C

from __future__ import division, print_function
from sys import stdin
from math import pi
r = float(stdin.readline())
print('{:.6f} {:.6f}'.format(pi*r*r, pi*r*2.0))

Compiler output:
main.c:1:1: error: unknown type name 'from'
    1 | from __future__ import division, print_function
      | ^~~~
main.c:1:17: error: expected '=', ',', ';', 'asm' or '__attribute__' before 'import'
    1 | from __future__ import division, print_function
      |                 ^~~~~~
main.c:1:17: error: unknown type name 'import'
main.c:5:7: warning: multi-character literal with 13 characters exceeds 'int' size of 4 bytes
    5 | print('{:.6f} {:.6f}'.format(pi*r*r, pi*r*2.0))
      |       ^~~~~~~~~~~~~~~
Language: C

    #include <iostream>
#include<stdio.h>
    using namespace std;
     
    int main() {
int r;
cin >> r;
printf("%f\n %f\n" ,2*r*3.41592 , r*r*3.141592 );
    
    return 0;
    }

Compiler output:
main.c:1:14: fatal error: iostream: No such file or directory
    1 |     #include <iostream>
      |              ^~~~~~~~~~
compilation terminated.
Language: C

    #include <iostream>
#include<stdio.h>
    using namespace std;
     
    int main() {
double r;
cin >> r;
printf("%f\n %f\n" ,2*r*3.41592 , r*r*3.141592 );
    
    return 0;
    }

Compiler output:
main.c:1:14: fatal error: iostream: No such file or directory
    1 |     #include <iostream>
      |              ^~~~~~~~~~
compilation terminated.
Language: C


#include<stdio.h>
    using namespace std;
     
    int main() {
double r;
cin >> r;
printf("%f\n %f\n" ,2*r*3.41592 , r*r*3.141592 );
    
    return 0;
    }

Compiler output:
main.c:3:5: error: unknown type name 'using'
    3 |     using namespace std;
      |     ^~~~~
main.c:3:21: error: expected '=', ',', ';', 'asm' or '__attribute__' before 'std'
    3 |     using namespace std;
      |                     ^~~
main.c: In function 'main':
main.c:7:1: error: 'cin' undeclared (first use in this function)
    7 | cin >> r;
      | ^~~
main.c:7:1: note: each undeclared identifier is reported only once for each function it appears in
Language: C

#include <iostream>
#include<stdio.h>
    using namespace std;
     
    int main() {
double r;
scanf("%lf", &r)
printf("%f\n %f\n" ,2*r*3.41592 , r*r*3.141592 );
    
    return 0;
    }

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


#include<stdio.h>
    using namespace std;
     
    int main() {
double r;
scanf("%lf", &r)
printf("%f\n %f\n" ,2*r*3.41592 , r*r*3.141592 );
    
    return 0;
    }

Compiler output:
main.c:3:5: error: unknown type name 'using'
    3 |     using namespace std;
      |     ^~~~~
main.c:3:21: error: expected '=', ',', ';', 'asm' or '__attribute__' before 'std'
    3 |     using namespace std;
      |                     ^~~
main.c: In function 'main':
main.c:7:17: error: expected ';' before 'printf'
    7 | scanf("%lf", &r)
      |                 ^
      |                 ;
    8 | printf("%f\n %f\n" ,2*r*3.41592 , r*r*3.141592 );
      | ~~~~~~
Language: C


#include<stdio.h>
    using namespace std;
     
    int main() {
double r;
scanf("%lf", &r);
printf("%f\n %f\n" ,2*r*3.41592 , r*r*3.141592 );
    
    return 0;
    }

Compiler output:
main.c:3:5: error: unknown type name 'using'
    3 |     using namespace std;
      |     ^~~~~
main.c:3:21: error: expected '=', ',', ';', 'asm' or '__attribute__' before 'std'
    3 |     using namespace std;
      |                     ^~~
Language: C


#include<stdio.h>
    using namespace std;
     
    int main() {
double r;
scanf("%lf", &r);
printf("%f\n %f\n" ,2*r*3.141592 , r*r*3.141592 );
    
    return 0;
    }

Compiler output:
main.c:3:5: error: unknown type name 'using'
    3 |     using namespace std;
      |     ^~~~~
main.c:3:21: error: expected '=', ',', ';', 'asm' or '__attribute__' before 'std'
    3 |     using namespace std;
      |                     ^~~
Language: C


#include<stdio.h>
    using namespace std;
     
    int main() {
double r;
scanf("%lf", &r);
printf("%f %f\n" ,2*r*3.141592 , r*r*3.141592 );
    
    return 0;
    }

Compiler output:
main.c:3:5: error: unknown type name 'using'
    3 |     using namespace std;
      |     ^~~~~
main.c:3:21: error: expected '=', ',', ';', 'asm' or '__attribute__' before 'std'
    3 |     using namespace std;
      |                     ^~~
Language: C

#include<iostream>
#include<stdio.h>
    using namespace std;
     
    int main() {
double r;
double pi=3.1415926;

scanf("%lf", &r);
printf("%f %f\n" ,2*r*pi , r*r*pi );
    
    return 0;
    }

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

#include<cstdio>
#include<iostream>

#define PI 3.141592653589

using namespace std;

int main(void){

	int r;

	cin>>r;

	printf("%.6f %.6f\n",r*r*PI,r*2*PI);

	return 0;
}

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

int main()
{
	int r;
	double p=3.14159265;
	scanf("%d",&r);
	printf("%lf %lf\n",2*r*p,r*r*p);
}int main()
{
	int r;
	double p=3.14159265;
	scanf("%d",&r);
	printf("%lf %lf\n",2*r*p,r*r*p);
	return 0;
}

Compiler output:
main.c: In function 'main':
main.c:5:9: error: implicit declaration of function 'scanf' [-Wimplicit-function-declaration]
    5 |         scanf("%d",&r);
      |         ^~~~~
main.c:1:1: note: include '<stdio.h>' or provide a declaration of 'scanf'
  +++ |+#include <stdio.h>
    1 | int main()
main.c:5:9: warning: incompatible implicit declaration of built-in function 'scanf' [-Wbuiltin-declaration-mismatch]
    5 |         scanf("%d",&r);
      |         ^~~~~
main.c:5:9: note: include '<stdio.h>' or provide a declaration of 'scanf'
main.c:6:9: error: implicit declaration of function 'printf' [-Wimplicit-function-declaration]
    6 |         printf("%lf %lf\n",2*r*p,r*r*p);
      |         ^~~~~~
main.c:6:9: note: include '<stdio.h>' or provide a declaration of 'printf'
main.c:6:9: warning: incompatible implicit declaration of built-in function 'printf' [-Wbuiltin-declaration-mismatch]
main.c:6:9: note: include '<stdio.h>' or provide a declaration of 'printf'
main.c: At top level:
main.c:7:6: error: redefinition of 'main'
    7 | }int main()
      |      ^~~~
main.c:1:5: note: previous definition of 'main' with type 'int()'
    1 | int main()
      |     ^~~~
main.c: In function 'main':
main.c:11:9: warning: incompatible implicit declaration of built-in function 'scanf' [-Wbuiltin-declaration-mismatch]
   11 |         scanf("%d",&r);
      |         ^~~~~
main.c:11:9: note: include '<stdio.h>' or provide a declaration of 'scanf'
main.c:12:9: warning: incompatible implicit declaration of built-in function 'printf' [-Wbuiltin-declaration-mismatch]
   12 |         printf("%lf %lf\n",2*r*p,r*r*p);
      |         ^~~~~~
main.c:12:9: note: include '<stdio.h>' or provide a declaration of 'printf'
Language: C

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

int main(){
int r ;
int s ;
int l ;
scanf("%lf",&r) ;

if(r>=0){
s = M_PI*r^2 ;
l = 2*M_PI*r ;

printf("%lf,%lf",s,l) ;

return 0 ;
}

Compiler output:
main.c: In function 'main':
main.c:11:11: error: invalid operands to binary ^ (have 'double' and 'int')
   11 | s = M_PI*r^2 ;
      |           ^
main.c:17:1: error: expected declaration or statement at end of input
   17 | }
      | ^
Language: C

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

int main(){
int r ;
int s ;
int l ;
scanf("%lf",&r) ;

if(r>=0){
s = M_PI*r^2 ;
l = 2*M_PI*r ;

printf("%lf,%lf",s,l) ;

return 0 ;
}

}

Compiler output:
main.c: In function 'main':
main.c:11:11: error: invalid operands to binary ^ (have 'double' and 'int')
   11 | s = M_PI*r^2 ;
      |           ^
Language: C

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

int main(){
int r ;
int s ;
int l ;
scanf("%lf",&r) ;

if(r>=0){
s = M_PI*r^2 ;
l = 2*M_PI*r ;

printf("%lf,%lf",s,l) ;

return 0 ;

}

}

Compiler output:
main.c: In function 'main':
main.c:11:11: error: invalid operands to binary ^ (have 'double' and 'int')
   11 | s = M_PI*r^2 ;
      |           ^
Language: C

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

int main(){
double r ;
double s ;
double l ;
scanf("%lf",&r) ;

if(r>=0){
s = M_PI*r^2 ;
l = 2*M_PI*r ;

printf("%lf,%lf",s,l) ;

return 0 ;
}
}


/* {を忘れないように!! */

Compiler output:
main.c: In function 'main':
main.c:11:11: error: invalid operands to binary ^ (have 'double' and 'int')
   11 | s = M_PI*r^2 ;
      |           ^
Language: C

import java.util.Scanner;
import static java.lang.Math.PI;
class Main {
	public static void main(String[] arg){
		Scanner in = new Scanner(System.in);
		int x = in.nextInt();	
		System.out.println(x*x*Math.PI+" "+2*x*Math.PI);
	}
}

Compiler output:
main.c:1:1: error: unknown type name 'import'
    1 | import java.util.Scanner;
      | ^~~~~~
main.c:1:12: error: expected '=', ',', ';', 'asm' or '__attribute__' before '.' token
    1 | import java.util.Scanner;
      |            ^
main.c:2:7: error: expected ';' before 'static'
    2 | import static java.lang.Math.PI;
      |       ^~~~~~~
      |       ;
main.c:2:19: error: expected '=', ',', ';', 'asm' or '__attribute__' before '.' token
    2 | import static java.lang.Math.PI;
      |                   ^
main.c:3:1: error: unknown type name 'class'
    3 | class Main {
      | ^~~~~
main.c:3:12: error: expected '=', ',', ';', 'asm' or '__attribute__' before '{' token
    3 | class Main {
      |            ^
Language: C



#include <iostream>
#include <cmath>
#include <iomanip>
using namespace std;
  
double r,are,circ;
int main() {
cin >> r;
are = M_PI * r * r;
circ = 2 * M_PI * r;
cout << fixed << setprecision(6) << are << " " << circ << endl;
}

Compiler output:
main.c:3:10: fatal error: iostream: No such file or directory
    3 | #include <iostream>
      |          ^~~~~~~~~~
compilation terminated.
Language: C

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

int r;
double pi = M_PI;
double circ,length;
int main() {
	cin >>r;
	circ = pi * r * r;
	length = 2 * pi * r;
	cout << fixed << setprecision(8) << circ << length << endl;
	return 0;
}

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

#include <iostream>
#include <iomanip>

using namespace std;

int main()
{
 const double PI = 3.141592653589;
 double r;
 double area, circle;
 area = r * r * PI;
 circle = 2 * r * PI;
 cout << fixed << precision(5) << area << " " << circle << endl;
}


Compiler output:
a.cc: In function 'int main()':
a.cc:13:19: error: 'precision' was not declared in this scope
   13 |  cout << fixed << precision(5) << area << " " << circle << endl;
      |                   ^~~~~~~~~
Language: C++

#include <iostream>
#include <iomanip>
int main() {
	float r, a, c, pi;
	cin >> r;
	pi = 3.1415926535897932384626433832795028841971693993751;
	cout << fixed << setprecision(5) << r*1.0*r*pi << r*1.0*2*pi << endl;
	
	return 0;
}


Compiler output:
a.cc: In function 'int main()':
a.cc:5:9: error: 'cin' was not declared in this scope; did you mean 'std::cin'?
    5 |         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:7:9: error: 'cout' was not declared in this scope; did you mean 'std::cout'?
    7 |         cout << fixed << setprecision(5) << r*1.0*r*pi << r*1.0*2*pi << endl;
      |         ^~~~
      |         std::cout
/usr/include/c++/14/iostream:63:18: note: 'std::cout' declared here
   63 |   extern ostream cout;          ///< Linked to standard output
      |                  ^~~~
a.cc:7:17: error: 'fixed' was not declared in this scope; did you mean 'std::fixed'?
    7 |         cout << fixed << setprecision(5) << r*1.0*r*pi << r*1.0*2*pi << endl;
      |                 ^~~~~
      |                 std::fixed
In file included from /usr/include/c++/14/ios:44,
                 from /usr/include/c++/14/ostream:40,
                 from /usr/include/c++/14/iostream:41:
/usr/include/c++/14/bits/ios_base.h:1104:3: note: 'std::fixed' declared here
 1104 |   fixed(ios_base& __base)
      |   ^~~~~
a.cc:7:26: error: 'setprecision' was not declared in this scope; did you mean 'std::setprecision'?
    7 |         cout << fixed << setprecision(5) << r*1.0*r*pi << r*1.0*2*pi << endl;
      |                          ^~~~~~~~~~~~
      |                          std::setprecision
In file included from a.cc:2:
/usr/include/c++/14/iomanip:202:3: note: 'std::setprecision' declared here
  202 |   setprecision(int __n)
      |   ^~~~~~~~~~~~
a.cc:7:73: error: 'endl' was not declared in this scope; did you mean 'std::endl'?
    7 |         cout << fixed << setprecision(5) << r*1.0*r*pi << r*1.0*2*pi << endl;
      |                                                                         ^~~~
      |                                                                         std::endl
/usr/include/c++/14/ostream:744:5: note: 'std::endl' declared here
  744 |     endl(basic_ostream<_CharT, _Traits>& __os)
      |     ^~~~
Language: C++

#include <iostream>
#include <iomanip>
using namespace std;
int main(){
double r;
cin >> r;

cout << fixed << setprecision(6) <<r*r*3.141592 << ' ' << 2*r*3.141592 << endl;


Compiler output:
a.cc: In function 'int main()':
a.cc:8:80: error: expected '}' at end of input
    8 | cout << fixed << setprecision(6) <<r*r*3.141592 << ' ' << 2*r*3.141592 << endl;
      |                                                                                ^
a.cc:4:11: note: to match this '{'
    4 | int main(){
      |           ^
Language: C++

#include<iostream>
#include<cmath>
using namespace std;
int main(){
    int r;
    cin>>r;
    cout<<M_PI*r*r<<" "<<M_PI*2*r<<endl

}


Compiler output:
a.cc: In function 'int main()':
a.cc:7:40: error: expected ';' before '}' token
    7 |     cout<<M_PI*r*r<<" "<<M_PI*2*r<<endl
      |                                        ^
      |                                        ;
    8 | 
    9 | }
      | ~
Language: C++

#include <iostream>

using namespace std;


int main(){
    const double pi = 3.1415926535;
    double r;
    cin >> r;
    cout << fixed << setprecision(6) << r*r*pi << " " << 2*r*pi << endl;
    return 0;
}


Compiler output:
a.cc: In function 'int main()':
a.cc:10:22: error: 'setprecision' was not declared in this scope
   10 |     cout << fixed << setprecision(6) << r*r*pi << " " << 2*r*pi << 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 |
Language: C++

#include <iostream>
#include <cmath>

using namespace std;


int main(){
    const double pi = 3.1415926535898;
    double r;
    cin >> r;
    cout << fixed << setprecision(6) << r*r*pi << " " << 2*r*pi << endl;
    return 0;
}


Compiler output:
a.cc: In function 'int main()':
a.cc:11:22: error: 'setprecision' was not declared in this scope
   11 |     cout << fixed << setprecision(6) << r*r*pi << " " << 2*r*pi << endl;
      |                      ^~~~~~~~~~~~
a.cc:3:1: note: 'std::setprecision' is defined in header '<iomanip>'; this is probably fixable by adding '#include <iomanip>'
    2 | #include <cmath>
  +++ |+#include <iomanip>
    3 |
Language: C++

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

int main() {
	int r;

	cin >> r;

	cout << fixed;
    cout << setprecision(5);
    cout << r*r*M_PI << " " << 2*r*M_PI << endl;

	return 0;
}


Compiler output:
a.cc: In function 'int main()':
a.cc:11:13: error: 'setprecision' was not declared in this scope
   11 |     cout << setprecision(5);
      |             ^~~~~~~~~~~~
a.cc:3:1: note: 'std::setprecision' is defined in header '<iomanip>'; this is probably fixable by adding '#include <iomanip>'
    2 | #include <cmath>
  +++ |+#include <iomanip>
    3 | using namespace std;
Language: C++

#include<bits\stdc++.h>
using namespace std;
int main(){
    int r;
    double l, s;
    cin >> r;
    l = 2 * pi() * r;
    s = r * r * pi();
    cout << l << s << endl;
    return 0;
}


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

#include<bits/stdc++.h>
using namespace std;
int main(){
    int r;
    double l, s;
    cin >> r;
    l = 2 * pi() * r;
    s = r * r * pi();
    cout << l << s << endl;
    return 0;
}


Compiler output:
a.cc: In function 'int main()':
a.cc:7:13: error: 'pi' was not declared in this scope
    7 |     l = 2 * pi() * r;
      |             ^~
Language: C++

#include<bits/stdc++.h>
using namespace std;
int main(){
    int r;
    double l, s;
    cin >> r;
    l = 2 * Pi() * r;
    s = r * r * Pi();
    cout << l << s << endl;
    return 0;
}


Compiler output:
a.cc: In function 'int main()':
a.cc:7:13: error: 'Pi' was not declared in this scope
    7 |     l = 2 * Pi() * r;
      |             ^~
Language: C++

#include<bits/stdc++.h>
#include<math.h>
using namespace std;
int main(){
    int r;
    double l, s;
    cin >> r;
    l = 2 * pi() * r;
    s = r * r * pi();
    cout << l << s << endl;
    return 0;
}


Compiler output:
a.cc: In function 'int main()':
a.cc:8:13: error: 'pi' was not declared in this scope
    8 |     l = 2 * pi() * r;
      |             ^~
Language: C++

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

int main(){
    double r;
    const double pi = acos(-1);
    
    cin >> r ;
    cout<<fixed<<setprecision(10);
    cout << r*r*pi<<" "<<2*pi*r<<endl;
}


Compiler output:
a.cc: In function 'int main()':
a.cc:10:18: error: 'setprecision' was not declared in this scope
   10 |     cout<<fixed<<setprecision(10);
      |                  ^~~~~~~~~~~~
a.cc:3:1: note: 'std::setprecision' is defined in header '<iomanip>'; this is probably fixable by adding '#include <iomanip>'
    2 | #include <cmath>
  +++ |+#include <iomanip>
    3 | using namespace std;
Language: C++

#include<iostream>
using namespace std;

int main(){
    
    double r; cin >> r;
    printf("%f %f\n", 4 * PI * r * r, 4 * PI * r * r * r / 3);
    return 0;
}


Compiler output:
a.cc: In function 'int main()':
a.cc:7:27: error: 'PI' was not declared in this scope
    7 |     printf("%f %f\n", 4 * PI * r * r, 4 * PI * r * r * r / 3);
      |                           ^~
Language: C++

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

int main(){
    
    double r; cin >> r;
    printf("%f %f\n", 4 * PI * r * r, 4 * PI * r * r * r / 3);
    return 0;
}


Compiler output:
a.cc: In function 'int main()':
a.cc:7:27: error: 'PI' was not declared in this scope
    7 |     printf("%f %f\n", 4 * PI * r * r, 4 * PI * r * r * r / 3);
      |                           ^~
Language: C++

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

int main(){
    
    double r; cin >> r;
    printf("%f %f\n", 4 * pi * r * r, 4 * pi * r * r * r / 3);
    return 0;
}


Compiler output:
a.cc: In function 'int main()':
a.cc:7:27: error: 'pi' was not declared in this scope
    7 |     printf("%f %f\n", 4 * pi * r * r, 4 * pi * r * r * r / 3);
      |                           ^~
Language: C++

// http://judge.u-aizu.ac.jp/onlinejudge/description.jsp?id=ITP1_4_B&lang=jp

#include<iostream>
 using namespace std;

int main(){

    float r ;
    cin >> r ;

 
    cout<< r * r * 3.141592653 << " " 2 * r * 3.141592653 << endl ;  
    return 0;

}


Compiler output:
a.cc: In function 'int main()':
a.cc:12:38: error: expected ';' before numeric constant
   12 |     cout<< r * r * 3.141592653 << " " 2 * r * 3.141592653 << endl ;
      |                                      ^~
      |                                      ;
Language: C++

// http://judge.u-aizu.ac.jp/onlinejudge/description.jsp?id=ITP1_4_B&lang=jp

#include<iostream>
 using namespace std;

int main(){

    double r ;
    cin >> r ;

    cout << std::fixed;
    cou t<< std::setprecision(6) << r * r * 3.141592 << " " << 2 * r * 3.141592653 << endl ;  
    return 0;

}


Compiler output:
a.cc: In function 'int main()':
a.cc:12:5: error: 'cou' was not declared in this scope
   12 |     cou t<< std::setprecision(6) << r * r * 3.141592 << " " << 2 * r * 3.141592653 << endl ;
      |     ^~~
Language: C++

// http://judge.u-aizu.ac.jp/onlinejudge/description.jsp?id=ITP1_4_B&lang=jp

#include<iostream>
 using namespace std;

int main(){

    double r ;
    cin >> r ;

    std::cout << std::fixed;
    cou t<< std::setprecision(6) << r * r * 3.141592 << " " << 2 * r * 3.141592653 << endl ;  
    return 0;

}


Compiler output:
a.cc: In function 'int main()':
a.cc:12:5: error: 'cou' was not declared in this scope
   12 |     cou t<< std::setprecision(6) << r * r * 3.141592 << " " << 2 * r * 3.141592653 << endl ;
      |     ^~~
Language: C++

// http://judge.u-aizu.ac.jp/onlinejudge/description.jsp?id=ITP1_4_B&lang=jp

#include<iostream>
 using namespace std;

int main(){

    double r ;
    cin >> r ;

    cou t<< std::setprecision(6) << r * r * 3.141592 << " " << 2 * r * 3.141592653 << endl ;  
    return 0;

}


Compiler output:
a.cc: In function 'int main()':
a.cc:11:5: error: 'cou' was not declared in this scope
   11 |     cou t<< std::setprecision(6) << r * r * 3.141592 << " " << 2 * r * 3.141592653 << endl ;
      |     ^~~
Language: C++

// http://judge.u-aizu.ac.jp/onlinejudge/description.jsp?id=ITP1_4_B&lang=jp

#include<iostream>
 using namespace std;

int main(){

    double r ;
    cin >> r ;

    std::cout << std::fixed;
    cout << std::setprecision(6) << r * r * 3.141592 << " " << 2 * r * 3.141592653 << endl ;  
    return 0;

}


Compiler output:
a.cc: In function 'int main()':
a.cc:12:18: error: 'setprecision' is not a member of 'std'
   12 |     cout << std::setprecision(6) << r * r * 3.141592 << " " << 2 * r * 3.141592653 << endl ;
      |                  ^~~~~~~~~~~~
a.cc:4:1: note: 'std::setprecision' is defined in header '<iomanip>'; this is probably fixable by adding '#include <iomanip>'
    3 | #include<iostream>
  +++ |+#include <iomanip>
    4 |  using namespace std;
Language: C++

// http://judge.u-aizu.ac.jp/onlinejudge/description.jsp?id=ITP1_4_B&lang=jp

#include<iostream>
 using namespace std;

int main(){

    double r ;
    cin >> r ;

    cout << std::setprecision(6) << r * r * 3.141592 << " " << 2 * r * 3.141592653 << endl ;  
    return 0;

}


Compiler output:
a.cc: In function 'int main()':
a.cc:11:18: error: 'setprecision' is not a member of 'std'
   11 |     cout << std::setprecision(6) << r * r * 3.141592 << " " << 2 * r * 3.141592653 << endl ;
      |                  ^~~~~~~~~~~~
a.cc:4:1: note: 'std::setprecision' is defined in header '<iomanip>'; this is probably fixable by adding '#include <iomanip>'
    3 | #include<iostream>
  +++ |+#include <iomanip>
    4 |  using namespace std;
Language: C++

// http://judge.u-aizu.ac.jp/onlinejudge/description.jsp?id=ITP1_4_B&lang=jp

#include<iostream>
 using namespace std;

int main(){

    double r ;
    cin >> r ;
    
    cout << fixed; //精度保障のためこの記述が必要なようです。
    cout << setprecision(15) << r * r * 3.1415926535897 << " " << 2 * r * 3.1415926535897 << endl ;  
    return 0;

}


Compiler output:
a.cc: In function 'int main()':
a.cc:12:13: error: 'setprecision' was not declared in this scope
   12 |     cout << setprecision(15) << r * r * 3.1415926535897 << " " << 2 * r * 3.1415926535897 << endl ;
      |             ^~~~~~~~~~~~
a.cc:4:1: note: 'std::setprecision' is defined in header '<iomanip>'; this is probably fixable by adding '#include <iomanip>'
    3 | #include<iostream>
  +++ |+#include <iomanip>
    4 |  using namespace std;
Language: C++

// http://judge.u-aizu.ac.jp/onlinejudge/description.jsp?id=ITP1_4_B&lang=jp

#include<iostream>
 using namespace std;

int main(){

    double r ;
    cin >> r ;
    
    cout << fixed; //精度保障のためこの記述が必要なようです。
    cout << std::setprecision(15) << r * r * 3.1415926535897 << " " << 2 * r * 3.1415926535897 << endl ;  
    return 0;

}


Compiler output:
a.cc: In function 'int main()':
a.cc:12:18: error: 'setprecision' is not a member of 'std'
   12 |     cout << std::setprecision(15) << r * r * 3.1415926535897 << " " << 2 * r * 3.1415926535897 << endl ;
      |                  ^~~~~~~~~~~~
a.cc:4:1: note: 'std::setprecision' is defined in header '<iomanip>'; this is probably fixable by adding '#include <iomanip>'
    3 | #include<iostream>
  +++ |+#include <iomanip>
    4 |  using namespace std;
Language: C++

#include <stdio.h>

int main(int argc, char** argv)
{
	int r;
	scanf_s("%d", &r);

	const double PI = 3.14159;

	printf("%f.5 %f.5", PI * (r * r), PI * (r * 2));
	return 0;
}


Compiler output:
a.cc: In function 'int main(int, char**)':
a.cc:6:9: error: 'scanf_s' was not declared in this scope; did you mean 'scanf'?
    6 |         scanf_s("%d", &r);
      |         ^~~~~~~
      |         scanf
Language: C++

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

int main(){
  cout<<fixed<<setprecision(12);
  double r;
  cin>>r;

  double pi=acos(-1);
  double area=r*r*pi;
  double cir=2*r*pi;
  count<<area<<" "<<cir<<endl;
  return 0;
}




Compiler output:
a.cc: In function 'int main()':
a.cc:12:8: error: invalid operands of types '<unresolved overloaded function type>' and 'double' to binary 'operator<<'
   12 |   count<<area<<" "<<cir<<endl;
      |   ~~~~~^~~~~~
Language: C++

#include <cstdio>

int main() {
    double r, pi = 3.1415;
    scanf("%lf", &r);
    printf("%.5f %.5f\n", r * r * p, 2 * r * p);
    return 0;
}


Compiler output:
a.cc: In function 'int main()':
a.cc:6:35: error: 'p' was not declared in this scope; did you mean 'pi'?
    6 |     printf("%.5f %.5f\n", r * r * p, 2 * r * p);
      |                                   ^
      |                                   pi
Language: C++

#include <iosteram>
#include  <math.h>
using namespace std;

int main()
{
    double r;
    
    cin >> r;
    
    cout << M_PI*pow(r,2) << " " << 2.0*M_PI*r << endl;
    
    return 0;
}


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

#include<stdio.h>

using namespace std;
double  a = 0.0f,b = 0.0f
double c = 0.0f,d = 0.0f;


int main(){

    scanf("%f %f", &a, &b);
//面積
    b = a / 2;
   c =  b * b * 3.14
   //円周
a * 3.14 = d;

 printf("%f" "%f"",c,d);


}


Compiler output:
a.cc:17:18: warning: missing terminating " character
   17 |  printf("%f" "%f"",c,d);
      |                  ^
a.cc:17:18: error: missing terminating " character
   17 |  printf("%f" "%f"",c,d);
      |                  ^~~~~~~
a.cc:5:1: error: expected ',' or ';' before 'double'
    5 | double c = 0.0f,d = 0.0f;
      | ^~~~~~
a.cc: In function 'int main()':
a.cc:13:4: error: 'c' was not declared in this scope
   13 |    c =  b * b * 3.14
      |    ^
a.cc:17:18: error: expected ')' before '}' token
   17 |  printf("%f" "%f"",c,d);
      |        ~         ^
      |                  )
......
   20 | }
      | ~
Language: C++

#include<stdio.h>
using namespace std;

double  a = 0.0f,b = 0.0f
double c = 0.0f,d = 0.0f;


int main(){

    scanf("%f", &a);
//面積
    b = a / 2;
   c =  b * b * 3.14
   //円周
a * 3.14 = d;

 printf("%f" "%f"",c,d);


}


Compiler output:
a.cc:17:18: warning: missing terminating " character
   17 |  printf("%f" "%f"",c,d);
      |                  ^
a.cc:17:18: error: missing terminating " character
   17 |  printf("%f" "%f"",c,d);
      |                  ^~~~~~~
a.cc:5:1: error: expected ',' or ';' before 'double'
    5 | double c = 0.0f,d = 0.0f;
      | ^~~~~~
a.cc: In function 'int main()':
a.cc:13:4: error: 'c' was not declared in this scope
   13 |    c =  b * b * 3.14
      |    ^
a.cc:17:18: error: expected ')' before '}' token
   17 |  printf("%f" "%f"",c,d);
      |        ~         ^
      |                  )
......
   20 | }
      | ~
Language: C++

#include<stdio.h>

int main(){
    float r;
    scanf("%f", &r);
    printf("%f %f\n", r*2f*3.14f, r*r*3.14f);
}


Compiler output:
a.cc: In function 'int main()':
a.cc:6:25: error: unable to find numeric literal operator 'operator""f'
    6 |     printf("%f %f\n", r*2f*3.14f, r*r*3.14f);
      |                         ^~
Language: C++

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

int main() {
    double r;
    cin >> r;
    
    double area = r * r * ((double) M_PI);
    double circ = 2.0 * r * ((double) M_PI);
    cout << fixed << setprecision(5) << area << " " << circ << endl;
    return 0;
}


Compiler output:
a.cc:1:2: error: invalid preprocessing directive #incldue; did you mean #include?
    1 | #incldue <bits/stdc++.h>
      |  ^~~~~~~
      |  include
a.cc: In function 'int main()':
a.cc:6:5: error: 'cin' was not declared in this scope
    6 |     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 | #incldue <bits/stdc++.h>
a.cc:8:37: error: 'M_PI' was not declared in this scope
    8 |     double area = r * r * ((double) M_PI);
      |                                     ^~~~
a.cc:10:5: error: 'cout' was not declared in this scope
   10 |     cout << fixed << setprecision(5) << area << " " << circ << endl;
      |     ^~~~
a.cc:10:5: note: 'std::cout' is defined in header '<iostream>'; this is probably fixable by adding '#include <iostream>'
a.cc:10:13: error: 'fixed' was not declared in this scope
   10 |     cout << fixed << setprecision(5) << area << " " << circ << endl;
      |             ^~~~~
a.cc:1:1: note: 'std::fixed' is defined in header '<ios>'; this is probably fixable by adding '#include <ios>'
  +++ |+#include <ios>
    1 | #incldue <bits/stdc++.h>
a.cc:10:22: error: 'setprecision' was not declared in this scope
   10 |     cout << fixed << setprecision(5) << area << " " << circ << endl;
      |                      ^~~~~~~~~~~~
a.cc:1:1: note: 'std::setprecision' is defined in header '<iomanip>'; this is probably fixable by adding '#include <iomanip>'
  +++ |+#include <iomanip>
    1 | #incldue <bits/stdc++.h>
a.cc:10:64: error: 'endl' was not declared in this scope
   10 |     cout << fixed << setprecision(5) << area << " " << circ << endl;
      |                                                                ^~~~
a.cc:1:1: note: 'std::endl' is defined in header '<ostream>'; this is probably fixable by adding '#include <ostream>'
  +++ |+#include <ostream>
    1 | #incldue <bits/stdc++.h>
Language: C++

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

int main() {
    double r;
    cin >> r;
    
    double area = r * r * ((double) M_PI);
    double circ = 2.0 * r * ((double) M_PI);
    cout << fixed << setprecision(5) << area << " " << circ << endl;
    return 0;
}


Compiler output:
a.cc:1:2: error: invalid preprocessing directive #incldue; did you mean #include?
    1 | #incldue <bits/stdc++.h>
      |  ^~~~~~~
      |  include
a.cc: In function 'int main()':
a.cc:7:5: error: 'cin' was not declared in this scope
    7 |     cin >> r;
      |     ^~~
a.cc:3:1: note: 'std::cin' is defined in header '<iostream>'; this is probably fixable by adding '#include <iostream>'
    2 | #include <math.h>
  +++ |+#include <iostream>
    3 | using namespace std;
a.cc:11:5: error: 'cout' was not declared in this scope
   11 |     cout << fixed << setprecision(5) << area << " " << circ << endl;
      |     ^~~~
a.cc:11:5: note: 'std::cout' is defined in header '<iostream>'; this is probably fixable by adding '#include <iostream>'
a.cc:11:13: error: 'fixed' was not declared in this scope
   11 |     cout << fixed << setprecision(5) << area << " " << circ << endl;
      |             ^~~~~
a.cc:3:1: note: 'std::fixed' is defined in header '<ios>'; this is probably fixable by adding '#include <ios>'
    2 | #include <math.h>
  +++ |+#include <ios>
    3 | using namespace std;
a.cc:11:22: error: 'setprecision' was not declared in this scope
   11 |     cout << fixed << setprecision(5) << area << " " << circ << endl;
      |                      ^~~~~~~~~~~~
a.cc:3:1: note: 'std::setprecision' is defined in header '<iomanip>'; this is probably fixable by adding '#include <iomanip>'
    2 | #include <math.h>
  +++ |+#include <iomanip>
    3 | using namespace std;
a.cc:11:64: error: 'endl' was not declared in this scope
   11 |     cout << fixed << setprecision(5) << area << " " << circ << endl;
      |                                                                ^~~~
a.cc:3:1: note: 'std::endl' is defined in header '<ostream>'; this is probably fixable by adding '#include <ostream>'
    2 | #include <math.h>
  +++ |+#include <ostream>
    3 | using namespace std;
Language: C++

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

int main() {
    double r;
    cin >> r;
    
    double area = r * r * ((double) M_PI);
    double circ = 2.0 * r * ((double) M_PI);
    cout << fixed << setprecision(5) << area << " " << circ << endl;
    return 0;
}


Compiler output:
a.cc:1:2: error: invalid preprocessing directive #incldue; did you mean #include?
    1 | #incldue <bits/stdc++.h>
      |  ^~~~~~~
      |  include
a.cc: In function 'int main()':
a.cc:7:5: error: 'cin' was not declared in this scope
    7 |     cin >> r;
      |     ^~~
a.cc:3:1: note: 'std::cin' is defined in header '<iostream>'; this is probably fixable by adding '#include <iostream>'
    2 | #include <cmath>
  +++ |+#include <iostream>
    3 | using namespace std;
a.cc:11:5: error: 'cout' was not declared in this scope
   11 |     cout << fixed << setprecision(5) << area << " " << circ << endl;
      |     ^~~~
a.cc:11:5: note: 'std::cout' is defined in header '<iostream>'; this is probably fixable by adding '#include <iostream>'
a.cc:11:13: error: 'fixed' was not declared in this scope
   11 |     cout << fixed << setprecision(5) << area << " " << circ << endl;
      |             ^~~~~
a.cc:3:1: note: 'std::fixed' is defined in header '<ios>'; this is probably fixable by adding '#include <ios>'
    2 | #include <cmath>
  +++ |+#include <ios>
    3 | using namespace std;
a.cc:11:22: error: 'setprecision' was not declared in this scope
   11 |     cout << fixed << setprecision(5) << area << " " << circ << endl;
      |                      ^~~~~~~~~~~~
a.cc:3:1: note: 'std::setprecision' is defined in header '<iomanip>'; this is probably fixable by adding '#include <iomanip>'
    2 | #include <cmath>
  +++ |+#include <iomanip>
    3 | using namespace std;
a.cc:11:64: error: 'endl' was not declared in this scope
   11 |     cout << fixed << setprecision(5) << area << " " << circ << endl;
      |                                                                ^~~~
a.cc:3:1: note: 'std::endl' is defined in header '<ostream>'; this is probably fixable by adding '#include <ostream>'
    2 | #include <cmath>
  +++ |+#include <ostream>
    3 | using namespace std;
Language: C++

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

using namespace std;

int main(){
    double r;
    cin >> r
    printf("%.5f %.5f\n",r*r*M_PI,r*2*M_PI)
    return 0;
}


Compiler output:
a.cc: In function 'int main()':
a.cc:9:13: error: expected ';' before 'printf'
    9 |     cin >> r
      |             ^
      |             ;
   10 |     printf("%.5f %.5f\n",r*r*M_PI,r*2*M_PI)
      |     ~~~~~~
Language: C++

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

using namespace std;

int main(){
    double r;
    cin >> r
    printf("%.5f %.5f\n",r*r*M_PI,r*2*M_PI);
    return 0;
}


Compiler output:
a.cc: In function 'int main()':
a.cc:9:13: error: expected ';' before 'printf'
    9 |     cin >> r
      |             ^
      |             ;
   10 |     printf("%.5f %.5f\n",r*r*M_PI,r*2*M_PI);
      |     ~~~~~~
Language: C++

import math

r = float(input())

print("{:.6f}".format(r*r*math.pi), "{:.6f}".format(2*r*math.pi))



Compiler output:
a.cc:1:1: error: 'import' does not name a type
    1 | import math
      | ^~~~~~
a.cc:1:1: note: C++20 'import' only available with '-fmodules-ts'
Language: C++

#define PI = 3.14159265359
#include<stdio.h>

int mian(){
    int r;
    scanf("%lf",&r);
    printf("%d &d\n",r*r*PI,2*r*PI);
    return 0;
}


Compiler output:
a.cc: In function 'int mian()':
a.cc:1:12: error: expected primary-expression before '=' token
    1 | #define PI = 3.14159265359
      |            ^
a.cc:7:26: note: in expansion of macro 'PI'
    7 |     printf("%d &d\n",r*r*PI,2*r*PI);
      |                          ^~
a.cc:1:12: error: expected primary-expression before '=' token
    1 | #define PI = 3.14159265359
      |            ^
a.cc:7:33: note: in expansion of macro 'PI'
    7 |     printf("%d &d\n",r*r*PI,2*r*PI);
      |                                 ^~
Language: C++

#define double PI = 3.14159265359
#include<stdio.h>

int mian(){
    int r;
    scanf("%lf",&r);
    printf("%d &d\n",r*r*PI,2*r*PI);
    return 0;
}


Compiler output:
a.cc: In function 'int mian()':
a.cc:7:26: error: 'PI' was not declared in this scope
    7 |     printf("%d &d\n",r*r*PI,2*r*PI);
      |                          ^~
Language: C++

#define PI 3.14159265359
#include<stdio.h>

int mian(){
    int r;
    scanf("%lf",&r);
    printf("%d &d\n",r*r*PI,2*r*PI);
    return 0;
}


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

#include<iostream>
#include<math,h>
using namespace std;
int main(){
    double r,s,l;
    cin >> r;
    s = r*r*M_PI;
    l = 2*r*M_PI;
    
    cout << s << " " << r << endl;
    return 0;
}


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

#include<iostream> 
using namespace std; 
int main(){
    double r,S,D;
    cin>>r;
    S=r*r*M_PI
    D=2*r*M_PI
    cout<<fixed<<S<<" "<<fixed<<D<<endl;
}


Compiler output:
a.cc: In function 'int main()':
a.cc:6:11: error: 'M_PI' was not declared in this scope
    6 |     S=r*r*M_PI
      |           ^~~~
Language: C++

#include<iostream> 
using namespace std; 
int main(){
    double r,S,D;
    cin>>r;
    S=r*r*M_PI;
    D=2*r*M_PI;
    cout<<fixed<<S<<" "<<fixed<<D<<endl;
}


Compiler output:
a.cc: In function 'int main()':
a.cc:6:11: error: 'M_PI' was not declared in this scope
    6 |     S=r*r*M_PI;
      |           ^~~~
Language: C++

#include<iostream> 
#include<math.h> 
using namespace std; 
int main(){
    double r,S,D;
    cin>>r;
    S=r*r*M_PI;
    D=2*r*M_PI
    cout<<fixed<<S<<" "<<fixed<<D<<endl;
}


Compiler output:
a.cc: In function 'int main()':
a.cc:9:5: error: expected ';' before 'cout'
    9 |     cout<<fixed<<S<<" "<<fixed<<D<<endl;
      |     ^~~~
Language: C++

#include<stdio.h>
#define pi 3.14159265358979
int main(){
float men,shu;

int r;

scanf("%d",&r);

men=(float)r*(float)r*M_PI;
shu=2*(float)r*M_PI;

printf("%f %f\n",men,shu);


return 0;
}



Compiler output:
a.cc: In function 'int main()':
a.cc:10:23: error: 'M_PI' was not declared in this scope
   10 | men=(float)r*(float)r*M_PI;
      |                       ^~~~
Language: C++

#include<iostream>
using namespace std;

int main(){
    float r,shu,men;
    cin >> r;
    shu = 2 * r * 3.14;
    man = r * r * 3.14;
    cout << shu << " " << men << endl;
}


Compiler output:
a.cc: In function 'int main()':
a.cc:8:5: error: 'man' was not declared in this scope; did you mean 'men'?
    8 |     man = r * r * 3.14;
      |     ^~~
      |     men
Language: C++

#include<iostream>
using namespace std;

int main(){
    int r;
    float shu,men;
    cin >> r;
    shu = 2 * r * 3.14;
    man = r * r * 3.14;
    cout << shu << " " << men << endl;
}


Compiler output:
a.cc: In function 'int main()':
a.cc:9:5: error: 'man' was not declared in this scope; did you mean 'men'?
    9 |     man = r * r * 3.14;
      |     ^~~
      |     men
Language: C++

#include<iostream>
using namespace std;

int main(){
    int l;
    float r,shu,men;
    r = (float)l;
    cin >> r;
    shu = 2 * r * 3.14;
    man = r * r * 3.14;
    cout << shu << " " << men << endl;
}


Compiler output:
a.cc: In function 'int main()':
a.cc:10:5: error: 'man' was not declared in this scope; did you mean 'men'?
   10 |     man = r * r * 3.14;
      |     ^~~
      |     men
Language: C++

#include<iostream>
#include<stdio.h>
using namespace std;
int main(){
    double r;
    scanf(“%lf”,&r);
    double pai=3.14159265;
    printf(“%f %f\nl,2*pai*r,pai*r*r);
    return 0;
}


Compiler output:
a.cc:6:11: error: extended character “ is not valid in an identifier
    6 |     scanf(“%lf”,&r);
      |           ^
a.cc:6:13: error: extended character ” is not valid in an identifier
    6 |     scanf(“%lf”,&r);
      |             ^
a.cc:8:12: error: extended character “ is not valid in an identifier
    8 |     printf(“%f %f\nl,2*pai*r,pai*r*r);
      |            ^
a.cc:8:18: error: stray '\' in program
    8 |     printf(“%f %f\nl,2*pai*r,pai*r*r);
      |                  ^
a.cc: In function 'int main()':
a.cc:6:11: error: '\U0000201c' was not declared in this scope
    6 |     scanf(“%lf”,&r);
      |           ^
a.cc:6:13: error: 'lf\U0000201d' was not declared in this scope
    6 |     scanf(“%lf”,&r);
      |             ^~~
a.cc:8:14: error: 'f' was not declared in this scope
    8 |     printf(“%f %f\nl,2*pai*r,pai*r*r);
      |              ^
Language: C++

import java.util.Scanner;

public class Main{
	public static void main(String[] args){
        
        Scanner sc = new Scanner(System.in);
        
        int r = sc.nextInt();
        double x=Math.PI;
        System.out.println(String.format("%.6f",r*r*x));
        System.out.println(String.format("%.6f",2*r*x));
   }
}


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<cmath>
#include<stdio.h>
int main(){
    double r;
    scanf(”%lf”,&r);
    
    printf(“%f %f\n”,2*MP_I*r,MP_I*r*r);
    return 0;
}


Compiler output:
a.cc:5:11: error: extended character ” is not valid in an identifier
    5 |     scanf(”%lf”,&r);
      |           ^
a.cc:5:13: error: extended character ” is not valid in an identifier
    5 |     scanf(”%lf”,&r);
      |             ^
a.cc:7:12: error: extended character “ is not valid in an identifier
    7 |     printf(“%f %f\n”,2*MP_I*r,MP_I*r*r);
      |            ^
a.cc:7:18: error: stray '\' in program
    7 |     printf(“%f %f\n”,2*MP_I*r,MP_I*r*r);
      |                  ^
a.cc:7:19: error: extended character ” is not valid in an identifier
    7 |     printf(“%f %f\n”,2*MP_I*r,MP_I*r*r);
      |                   ^
a.cc: In function 'int main()':
a.cc:5:11: error: '\U0000201d' was not declared in this scope
    5 |     scanf(”%lf”,&r);
      |           ^
a.cc:5:13: error: 'lf\U0000201d' was not declared in this scope
    5 |     scanf(”%lf”,&r);
      |             ^~~
a.cc:7:12: error: '\U0000201c' was not declared in this scope
    7 |     printf(“%f %f\n”,2*MP_I*r,MP_I*r*r);
      |            ^
a.cc:7:14: error: 'f' was not declared in this scope
    7 |     printf(“%f %f\n”,2*MP_I*r,MP_I*r*r);
      |              ^
a.cc:7:24: error: 'MP_I' was not declared in this scope; did you mean 'M_PI'?
    7 |     printf(“%f %f\n”,2*MP_I*r,MP_I*r*r);
      |                        ^~~~
      |                        M_PI