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

#include <bits/stdc++.h>
using namespace std;
double pi = 3.14159
int main(void){
  double r;
  cin >> r;
  cout << setprecision(20) <<  2*r*pi;
  return 0;
}
  

Compiler output:
a.cc:4:1: error: expected ',' or ';' before 'int'
    4 | int main(void){
      | ^~~
Language: C

r = float(input())
output = r * 2 * 3.1415
print(output)

Compiler output:
main.c:1:1: warning: data definition has no type or storage class
    1 | r = float(input())
      | ^
main.c:1:1: error: type defaults to 'int' in declaration of 'r' [-Wimplicit-int]
main.c:1:5: error: expected expression before 'float'
    1 | r = float(input())
      |     ^~~~~
Language: C

#include <bits/stdc++.h>
#define Pi 3.141592653589793
using namespace std;

int main(int argc, char const *argv[])
{
    int n;
    cin >> n;
    int t = 2 * n;
    double r = Pi * t;
    // printf("%lf\n", r);
    cout << fixed << setprecision(20) << r << endl;

    return 0;
}


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

#include <iostream>
#include <cmath>
#include <cstdlib>
#include <string>

using namespace std;

int main() {
  double r;
  cin >> r;

  cout << M_PI * r * r << 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>
using namespace std;

int main(){
    double PI = 3.1415;
    double R;
    cin >> R;
    cout << 2*R*PI << 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 <bits/stdc++.h>

int main() {
  std::ios::sync_with_stdio(false);
  std::cin.tie(nullptr);

  int r;
  std::cin >> r;

  std::cout << 2 * r * M_PI <<std::endl;

  return 0;
}


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

 
#include <bits/stdc++.h>
#include <ext/pb_ds/tree_policy.hpp>
#include <ext/pb_ds/assoc_container.hpp>
 
using namespace std;
using namespace __gnu_pbds;
 
typedef long long ll;
typedef long double ld;
typedef complex<ld> cd;
 
typedef pair<int, int> pi;
typedef pair<ll,ll> pl;
typedef pair<ld,ld> pd;
 
typedef vector<int> vi;
typedef vector<ld> vd;
typedef vector<ll> vl;
typedef vector<pi> vpi;
typedef vector<pl> vpl;
typedef vector<cd> vcd;
 
template <class T> using Tree = tree<T, null_type, less<T>, rb_tree_tag,tree_order_statistics_node_update>;
 
#define FOR(i, a, b) for (int i=a; i<(b); i++)
#define F0R(i, a) for (int i=0; i<(a); i++)
#define FORd(i,a,b) for (int i = (b)-1; i >= a; i--)
#define F0Rd(i,a) for (int i = (a)-1; i >= 0; i--)
 
#define sz(x) (int)(x).size()
#define mp make_pair
#define pb push_back
#define f first
#define s second
#define lb lower_bound
#define ub upper_bound
#define all(x) x.begin(), x.end()
#define ins insert
 
mt19937 rng(chrono::steady_clock::now().time_since_epoch().count());
 
const int MOD = 1000000007;
const ll INF = 1e18;
const int MX = 100001; //check the limits, dummy
 
int main() {
	ios_base::sync_with_stdio(0); cin.tie(0);    
	
    int N;
    cin>>N;
    double ans=3.14159;
    ans=2.0*ans*N;
    cout<<ans;	
	return 0;
}
 


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

#include <bits/stdc++.h>
using namespace std;
#define fast_io ios_base::sync_with_stdio(false);cin.tie(NULL)
 
void solve()
{
   int r;
   cin >> r;
   double cur=2.0*M_PI*r;
    cout << setprecision(10) << cur << endl;
}
 
 
int main()
{
    fast_io;
    int t;
    //cin >> t;
t=1;
    for (int tt=1;tt<=t;tt++)
    {
        solve();
        
 
    }
 
    
    return 0;
}
 
 
#include <bits/stdc++.h>
using namespace std;
#define fast_io ios_base::sync_with_stdio(false);cin.tie(NULL)

void solve()
{
   int r;
   cin >> r;
   double cur=2.0*M_PI*r;
    cout << setprecision(10) << cur << endl;
}


int main()
{
    fast_io;
    int t;
    //cin >> t;
t=1;
    for (int tt=1;tt<=t;tt++)
    {
        solve();
        

    }

    
    return 0;
}


Submission Info
Submission Time

Compiler output:
a.cc:36:6: error: redefinition of 'void solve()'
   36 | void solve()
      |      ^~~~~
a.cc:5:6: note: 'void solve()' previously defined here
    5 | void solve()
      |      ^~~~~
a.cc:45:5: error: redefinition of 'int main()'
   45 | int main()
      |     ^~~~
a.cc:14:5: note: 'int main()' previously defined here
   14 | int main()
      |     ^~~~
a.cc:63:1: error: 'Submission' does not name a type
   63 | Submission Info
      | ^~~~~~~~~~
Language: C

#include<bits/stdc++.h>

#define ll long long

#define pi 2*acos(0.0)

using namespace std;

int main(){

int n;

cin>>n;

double result = 2*pi*n;

cout<<result<<endl;

return 0;

}

Compiler output:
main.c: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>
#define _GLIBCXX_DEBUG
#define rep(i,n) for(int i=0;i<(n);++i)
#define dunk(a) cout << (a) << endl
#define all(a) (a).begin(),(a).end()
#define rall(a) (a).rbegin(),(a).rend()
using namespace std;
typedef long long ll;

int main() {
	double r; cin >> r;
	double ans = r * 6.2831853;
	cout << ans << fixed << setprecision(10);
	return 0;
}


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

#include <stdio.h>


int main {
  
  int N;
  cin >> N;
  cout << N * 3.14 << endl;
}


Compiler output:
a.cc:4:5: error: cannot declare '::main' to be a global variable
    4 | int main {
      |     ^~~~
a.cc:6:3: error: expected primary-expression before 'int'
    6 |   int N;
      |   ^~~
a.cc:6:3: error: expected '}' before 'int'
a.cc:4:10: note: to match this '{'
    4 | int main {
      |          ^
a.cc:7:3: error: 'cin' does not name a type
    7 |   cin >> N;
      |   ^~~
a.cc:8:3: error: 'cout' does not name a type
    8 |   cout << N * 3.14 << endl;
      |   ^~~~
a.cc:9:1: error: expected declaration before '}' token
    9 | }
      | ^
Language: C

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

int main() {
  int r;
 double pi = 3.14159265358979323846;
  cin >> r;

  cout << setprecision(20) << 2*pi*r << endl;

  return 0;
}


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

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

int main() {
  // ここにプログラムを追記
  int a ;
  cin >> a ;
  cout << a * 2 * 3.1415 << endl;
}


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

#include<bits/stdc++.h>
using namespace std;
int main()
{

double a,b;
cin>>a;
a=a*2;
b=acos(-1);
printf("%0.20f\n",a*b);}

Compiler output:
main.c: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;cin >> R;
  double PI = 3.14159265358979323846;
  cout << 2*R*PI <<endl;  
}


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

#include <bits/stdc++.h>
using namespace std;
#define int long long int
#define PI 3.141592653
  
float circumference(double r) 
{ 
    float cir = 2*PI*r; 
    return cir; 
} 
  
int32_t main() 
{
      double r;
      cin>>r;
      cout<<circumference(r);
      
	return 0;
}


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

#include <bits/stdc++.h>
using namespace std;
int main(void){
    float N;
    cin >> N;
    cout << N*2*3.141592;
}


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

#include <bits/stdc++.h>

using namespace std;

typedef long long ll;

#define FOR(i,a,b) for(int i=a;i<=b;i++)
#define FORd(i,a,b) for(int i=a;i>=b;i--)
#define fi first
#define se second
#define II pair<int,int>

const int N=1e5+10;
const ll maxN=1e18+10;
const double pi=3.14159265359;

int main()
{
    ios_base::sync_with_stdio(0); cin.tie(0); cout.tie(0);
#ifndef ONLINE_JUDGE
    freopen("input.txt", "r", stdin);
    freopen("output.txt", "w", stdout);
#endif
    double n;
    cin >> n;
    cout << n*2*pi;
}
    

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

#include<bits/stdc++.h>
using namespace std;
int main()
{
	int r;
	cin >> r;
	double c=2.0*3.1415*r;
	cout<<c;
	return 0; 
} 

Compiler output:
main.c: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;
#define rep(i,n) for (int i =0;i<(n);++i)
using ll = long long;
using P = pair<int, int>;
//int choose2(ll x){
	//	return x*(x-1)/2;}
const int INF = 1001001001;

int main() {
	ll R;
		cin >> R;
		cout << 6.28318530717958623200* R;
	
}

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

import math
print(eval(input())*math.pi*2)

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

#include <iostream>
using namespace std;
 
int main(){ 
int r;
double p=3.14159265358979323846;
cin>>r;
cout<<2*p*r<<endl;
}

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

#include <bits/stdc++.h>
#define pi acos(-1)

using namespace std;

int main() {
  double r,ans;
  while(scanf("%lf", &r) == 1) {
   ans = 2.0 * pi * r;
   printf("%lf\n", ans);
  }
  return 0;
}
  

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

#include<iostream>
using namespace std;
int main()
{
	int R;
	float f = 3.141592;

	cin >> R;

	float ans = R * 2 * f;

	cout << ans << endl;

	return 0;
}

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

#include <bits/stdc++.h>
using nammespace std;
int main() {
  double R;
  cin >> R;
  double E;
  E = R * 2 * 3.141592653589;
  cout << E << endl;
}

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

include<bits/stdc++.h>
#define ll long long int
#define ld long double
#define fast ios_base::sync_with_stdio(false); cin.tie(NULL); cout.tie(NULL);
using namespace std;
 
int main(){
    fast;
    ll n;
    cin >> n;
    ld ans = 2*n*3.14;
    cout << ans;
    return 0;
}
//                                     #!!{*[$um1t_Kum@r]*}!!#

Compiler output:
a.cc:1:1: error: 'include' does not name a type
    1 | include<bits/stdc++.h>
      | ^~~~~~~
a.cc: In function 'int main()':
a.cc:4:14: error: 'ios_base' has not been declared
    4 | #define fast ios_base::sync_with_stdio(false); cin.tie(NULL); cout.tie(NULL);
      |              ^~~~~~~~
a.cc:8:5: note: in expansion of macro 'fast'
    8 |     fast;
      |     ^~~~
a.cc:4:48: error: 'cin' was not declared in this scope
    4 | #define fast ios_base::sync_with_stdio(false); cin.tie(NULL); cout.tie(NULL);
      |                                                ^~~
a.cc:8:5: note: in expansion of macro 'fast'
    8 |     fast;
      |     ^~~~
a.cc:4:56: error: 'NULL' was not declared in this scope
    4 | #define fast ios_base::sync_with_stdio(false); cin.tie(NULL); cout.tie(NULL);
      |                                                        ^~~~
a.cc:8:5: note: in expansion of macro 'fast'
    8 |     fast;
      |     ^~~~
a.cc:1:1: note: 'NULL' is defined in header '<cstddef>'; this is probably fixable by adding '#include <cstddef>'
  +++ |+#include <cstddef>
    1 | include<bits/stdc++.h>
a.cc:4:63: error: 'cout' was not declared in this scope
    4 | #define fast ios_base::sync_with_stdio(false); cin.tie(NULL); cout.tie(NULL);
      |                                                               ^~~~
a.cc:8:5: note: in expansion of macro 'fast'
    8 |     fast;
      |     ^~~~
Language: C++

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

int main()
{
	int r;
	cin >> r;
	
	cout << 2 * c * 3.14 << endl;
	
	return 0;
}


Compiler output:
a.cc: In function 'int main()':
a.cc:9:21: error: 'c' was not declared in this scope
    9 |         cout << 2 * c * 3.14 << endl;
      |                     ^
Language: C

#include <studio.h>
double r, a;
main(){
scanf(%lf,&r);
	
    a = 2*3.14*r;
    
    printf(a,&a);
}

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

#include <bits/stdc++.h>
#define _GLIBCXX_DEBUG
#define rep(i,n) for(int i=0;i<(n);++i)
#define dunk(a) cout << (a) << endl
#define all(a) (a).begin(),(a).end()
#define rall(a) (a).rbegin(),(a).rend()
using namespace std;
typedef long long ll;

int main() {
	double r; cin >> r;
	double ans = 2 * r * 3.14159;
	cout << ans << fixed << setprecision(10);
	return 0;
}


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

#include <stdio.h>
#include <algorithm>
using namespace std;
using ll = long long;

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

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

#include <bits/stdc++.h>
using namespace std;
#define rep(i, n) for (int i = 0; i < (int)(n); i++)
#define rep_range(i, s, e) for (int i = (s); i < (int)(e); i++)
#define rep_rev(i, s, e) for (int i = (s)-1; i >= (int)(e); i--)
#define sort_vec(v) sort((v).begin(),(v).end())
typedef int64_t lint;
// lint mod = 998244353;

double app() {
  int a;
  cin>>a;

  return a*2*3.14159265;
}

int main(){cout<<app()<<endl;return 0;}


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

#include <bits/stdc++.h>
using namespace std;
const double PI=3.14159265358979323846;

int main(){
	float r;
	cin >> r;	
	cout << 2*PI*r << endl;	
}

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

#include<bits/stdc++.h>
using namespace std;
using ll=long long;
constexpr ll mod=1e9+7;

int main()
{
  cout<<fixed<<setprecision(20);
  double r;
  cin>>r;
  cout<<2*M_PI*r;
  
}

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

#include <stdio.h>
#include 

int main(void){
  int r;
  double pi = 3.141592654;
  scanf("%d", &r);
  printf ("%f", 2.0 * pi * r);
  return 0;
}

Compiler output:
main.c:2:10: error: #include expects "FILENAME" or <FILENAME>
    2 | #include
      |          ^
Language: Java

int R = 0;
int sum = 0;
Scanner scan = new Scanner(System.in);
    R = scan.nextInt();
    sum = R * 2 * 3.141592;
    System.out.println(sum);
    scan.close();


Compiler output:
Main.java:1: error: unnamed classes are a preview feature and are disabled by default.
int R = 0;
^
  (use --enable-preview to enable unnamed classes)
Main.java:4: error: class, interface, enum, or record expected
    R = scan.nextInt();
    ^
Main.java:5: error: class, interface, enum, or record expected
    sum = R * 2 * 3.141592;
    ^
Main.java:6: error: class, interface, enum, or record expected
    System.out.println(sum);
    ^
Main.java:7: error: class, interface, enum, or record expected
    scan.close();
    ^
5 errors
Language: C

#include <algorithm>
#include<iostream>
#include<stdio.h>
#include<iostream>
#include<stdio.h>
#include<vector>
#include<set>
#include<string>
#include<iomanip>
#include<queue>
#include<functional>
#include<cmath>
#include<map>
#define rep(i,n) for(int i=0; i<(int)n; i++)//n回繰り返す
using namespace std;
using ll = long long;
using P = pair<int, int>;
using graph = vector<vector<int>>;


int main() {
    int N; cin >> N;
    double ans = 2 * (double)N * 3.14;
        cout<< ans << endl;
}

    


    








































































































































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

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

int main(){
	int R;
    cin >> R;
    cout << fixed << setprecision(5);
    cout << R * M_PI << endl;
   }


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

#include<iostream>
using namespace std;

int main()
{
    int n;
    scanf("%d",&n);
    printf("%.20f\n",n*2*3.141592653589793238462);
    return 0;
}


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

import java.util.Scanner;
public class scratch {
    public static void main(String args[]){
        int radius;
        double circumference;
        Scanner sc = new Scanner(System.in);

        radius = sc.nextInt();
        circumference = Math.PI*2*radius;
        System.out.println(circumference);
    }
}

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

#include<cstdio>
#include<algorithm>
using namespace std;
const double pi=3.1415926;
int main()
{
    double r;
    scanf("%lf",&r);
    printf("%lf\n",2*r*pi);
    return 0;
}


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

#include<bits/stdc++.h>
#define ll long long
#define fast ios_base::sync_with_stdio(0);cin.tie(0);cout.tie(0);
using namespace std;
 
int main(){

    double r;
    cin >> r;
    double ans;

    ans = 2*r*3.141592653589793238;

    cout << ans;

	return 0;
}

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

#include<iostream>
#include<vector>
#include<cstdio>
#include<string>
#include<algorithm>
#include<map>
#include<cmath>
#include<deque>
#include<set>
using namespace std;

using ll = long long;
const int INF = 1001001001;

#define rep(i,n) for (int i = 0; i < (n); ++i)

int main(void)
{
  int r;
  cin >> r;
  printf("%.4f\n", 2 * r * M_PI);
}



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

#include<bits/stdc++.h>
using namespace std;
#define rep(i, n) for(int i = 0; i < (int)(n); i++)

double pi = 3.141592;
int main(){
    double r;
    cin >> r;
    cout << 2*pi*r << endl;
}

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

//...Bismillahir Rahmanir Rahim...
// Code by    Asad Bin Saber
// 19 04 2020

#include <bits/stdc++.h>

using namespace std;

typedef long long ll;

#define    pi    acos(-1.0)

void task()
{
    int r;
    double ans;

    scanf("%d", &r);

    ans = 2*pi*r;
    cout << ans << endl;
}

int main()
{
    //ios_base::sync_with_stdio(0);
    //cin.tie(0);

    //clock_t tStart = clock();

    //freopen("input.txt", "r", stdin);
    //freopen("output.txt", "w", stdout);

    task();

    //printf("Time taken: %.3fs\n", (double)(clock() - tStart)/CLOCKS_PER_SEC);

    return 0;
}



Compiler output:
main.c:5:10: fatal error: bits/stdc++.h: No such file or directory
    5 | #include <bits/stdc++.h>
      |          ^~~~~~~~~~~~~~~
compilation terminated.
Language: C

#include <stdio.h>
#include <iostream>
#include <map>
#include <vector>
#include <string>

#define _USE_MATH_DEFINES
#include<math.h>


using namespace std;

using ll = long long;
constexpr ll N = 2e5;
ll a[N];

int main()
{
	int R;
	cin >> R;
	
	cout << 2 * M_PI * R << endl;
	return 0;
}

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

#include<iostream>
#include<vector>
#include<string>
#include<algorithm>
#include <cmath>
#include <math.h>

using namespace std;
const long long INF = (long long) (1e18)+1;

int main() {
  double n;
  cin >> n;
  double ans = 2*n*M_PI;
  cout << ans << endl;
  return 0;
}

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

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


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

#include <bits/stdc++.h>
using namespace std;
int main(){
 int r;
  cin>>r;
  M_PI;
  int ans=2*r*PI
    cout<<ans<<endl;
}


Compiler output:
a.cc: In function 'int main()':
a.cc:7:15: error: 'PI' was not declared in this scope
    7 |   int ans=2*r*PI
      |               ^~
Language: C

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

int main() {
  double a, b;
  cin >> a;
  b = 2 * a * 3.14159265;
  cout << b << endl;
}

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

#include<iostream>
using namespace std;
int main (){
  int r;
  cin >> r;
  double a;
  a=3.14;
  cout << r*2*a << endl;
}


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

#include <bits/stdc++.h> 
#include <Windows.h>
#include <time.h>
#define F(i,a,b) for(int i=a;i<=(b);++i)
#define dF(i,a,b) for(int i=a;i>=(b);--i)
#define inf 0x3f3f3f3f
#define infll 0x3f3f3f3f3f3f3f3f
#define pb push_back
#define maxnkp make_pair
#define fi first
#define se second
#define eps 1e-10
using namespace std;
typedef long long ll;
const int mods = 1e9+7;
const int maxn = 1e5+10;
const int N = 1e5+10;
const int E = 2e5+10;  
ll n; 

int main(){
	double r;
	cin>>r;
	r = acos(-1)*2.0*r;
	printf("%llf\n",r);
}

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

#include <iostream>
#include <vector>
#include <algorithm>
#include <functional>
#include <cmath>
#include <numeric>
using namespace std;
 
int main() {
	int m;
	cin >> m;
 
	cout << 2*m*3.1415926 << endl;
 
	return 0;

Compiler output:
a.cc: In function 'int main()':
a.cc:15:18: error: expected '}' at end of input
   15 |         return 0;
      |                  ^
a.cc:9:12: note: to match this '{'
    9 | int main() {
      |            ^
Language: C

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

int main(){
  double r;
  cin >> r;
  cout << 3.14159 * r;
}

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

#include<bits/stdc++.h>
using namespace std;  
#define PI 3.14159265358979793238
int main(void)  
{  
   	long double a;
   	cin>>a;
   	cout<<2*a*PI;
    return 0;     
}  

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

from math import pi

r=int(input())
print(2*pi*r*)

Compiler output:
main.c:1:1: error: unknown type name 'from'
    1 | from math import pi
      | ^~~~
main.c:1:11: error: expected '=', ',', ';', 'asm' or '__attribute__' before 'import'
    1 | from math import pi
      |           ^~~~~~
main.c:1:11: error: unknown type name 'import'
Language: C

#include <bits/stdc++.h>
#define rep(i,n) for (int i = 0; i < (n); ++i)
using namespace std;
#define PI 3.14159265359

int main(){
 	int r;
  cin >> r;
  cout << r * 2 * PI << endl;
}

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

#include<algorithm>
#include<iostream>
#include<stdio.h>
#include<iostream>
#include<stdio.h>
#include<vector>
#include<set>
#include<string>
#include<iomanip>
#include<queue>
#include<functional>
#include<cmath>
#include<map>
#define rep(i,n) for(int i=0; i<(int)n; i++)//n回繰り返す
using namespace std;
using ll = long long;
using P = pair<int, int>;
using graph = vector<vector<int>>;


int main() {
    int N, M,W=0; cin >> N >> M;
    int A[11000];
    rep(i, M) {
        cin >> A[i];
        W += A[i];
    }
    if (N >= W)
    {
        cout << N - W << endl;
    }
    else {
        cout << -1 << endl;
    }
   
}

    


    








































































































































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

#include <bits/stdc++.h>
using namespace std;
#define ll int64_t
#include <cstdlib> 
#include <math.h>
#include<cstdio>
#include<cstring>
#define FOR(I, A, B) for (ll I = (A); I <= (B); I++)
#define IOS ios::sync_with_stdio(false); cin.tie(0); cout.tie(0);
#define fo(i,n) for(ll i=0;i<n;i++)
#define sz(a) ll((a).size())
#define pb push_back
#define all(c) (c).begin(),(c).end()
#define tr(c,i) for(auto i = (c).begin(); i != (c).end(); i++)
#define present(c,x) ((c).find(x) != (c).end())
#define cpresent(c,x) (find(all(c),x) != (c).end())
#define dbg(x) cout << #x << " = " << x << endl
#define dbg2(x,y) cout << #x << " = " << x << ", " << #y << " = " << y << endl
#define dbg3(x,y,z) cout << #x << " = " << x << ", " << #y << " = " << y << ", " << #z << " = " << z << endl
#define dbg4(x,y,z,q) cout << #x << " = " << x << ", " << #y << " = " << y << ", " << #z << " = " << z << ", " << #q << " = " << q << endl
#define scan(char_array) scanf("%[^\n]s",&char_array);

int main(){
	ll r;
	cin>>r;
	double ans=(double)3.141592653*2*r;
	cout<<setprecision(10)<<fixed<<ans<<endl;




	

}

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

#include<iostream>
#include<math.h>
using namespace std;
int main(){
	int R;
	cin >> R;
	cout << R*2*M_PI << endl;
	return 0;

}


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

#include <bits/stdc++.h>

using namespace std;

double const PI = acos(-1);

int r;

int main() {
	// freopen("input.txt", "r", stdin);
	// freopen("output.txt", "w", stdout);

	cin >> r;

	cout << setprecision(10) << 2 * PI * r << endl;
}


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

/**
 * code generated by JHelper
 * More info: https://github.com/AlexeyDmitriev/JHelper
 * @author champon
 */

#include <iostream>
#include <fstream>
#include <bits/stdc++.h>
#define se cout << "test ok" << endl;
#define sp << " " <<
#define enl "\n"
using namespace std;
using ll=long long;
using ld=long double;
using vi = vector<int>;
using vii = vector<vector<int>>;
using vl = vector<ll>;
using vll = vector<vector<ll>>;
using vlll = vector<vector<vector<ll>>>;
using vc = vector<char>;
using vcc = vector<vector<char>>;
using pi = pair<int, int>;
using pl = pair<ll, ll>;
ll mod = ll(1e9)+7;
ll inf = ll(1e18);
void bl(bool b, ostream& out=cout){ out << (b ? "Yes" : "No") << endl; }
void bl2(bool b, ostream& out=cout){ out << (b ? "YES" : "NO") << endl; }
template<typename T> inline bool chmax(T &a, T b){ if(a<b){a=b; return true;} return false; }
template<typename T> inline bool chmin(T &a, T b){ if(a>b){a=b; return true;} return false; }
int dx[] = {1, 0, -1, 0, 1, -1, 1, -1};
int dy[] = {0, 1, 0, -1, 1, -1, -1, 1};

#ifndef INCLUDE_DEBUG_HPP
#define INCLUDE_DEBUG_HPP

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

namespace dbg {
    using ll = long long;

    class Debug {
    public:
        Debug(){}
        template<typename T>
        void vd(vector<T> vec);
        template<typename T>
        void vd2(vector<vector<T>> vec);
        template<typename T>
        void ad(T *arr, ll n);
        template<typename T, size_t N>
        void ad2(T (&arr)[N], ll n);
        template<typename T>
        void md(T mp);
    };

    template<typename T>
    void Debug::vd(vector<T> vec) {
        for (auto vv : vec) cout << vv << " ";
        cout << endl;
    }

    template<typename T>
    void Debug::vd2(vector<vector<T>> vec) {
        for (auto vv : vec) {
            for (auto vvv : vv) cout << vvv << " ";
            cout << endl;
        }
    }

    template<typename T>
    void Debug::ad(T *arr, ll n) {
        for (int i = 0; i <= n; i++) cout << arr[i] << " ";
        cout << endl;
    }

    template<typename T, size_t N>
    void Debug::ad2(T (&arr)[N], ll n) {
        for (int i = 0; i <= N; i++) for (int j = 0; j <= n; j++) cout << arr[i][j] << " ";
        cout << endl;
    }

    template<typename T>
    void Debug::md(T mp) {
        cout << "key : value" << endl;
        for (auto const &m : mp) cout << m.first << " : " << m.second << endl;
        cout << endl;
    }

}

#endif //INCLUDE_DEBUG_HPP

using dbg::Debug;
Debug debug;

class ACirclePond {
public:
	void solve(std::istream& in, std::ostream& out) {
	    double r;
	    in >> r;
	    out << fixed << setprecision(10) << 2*M_PI*r << enl;
	}
};


int main() {
    cin.tie(nullptr);
    ios_base::sync_with_stdio(false);
	ACirclePond solver;
	std::istream& in(std::cin);
	std::ostream& out(std::cout);
	solver.solve(in, out);
	return 0;
}


Compiler output:
main.c:7:10: fatal error: iostream: No such file or directory
    7 | #include <iostream>
      |          ^~~~~~~~~~
compilation terminated.
Language: C

import math
math.pi

r=float(input())

R=2*r*math.pi

print(R)

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

#include<bits/stdc++.h>
using namespace std;
int main()
{
	int n;
	double s;
	s=2*n*3.14159265358979323846;
	printf("0.8lf",s);
}

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

#include<iostream>
#include<vector>
using namespace std;
typedef long long ll;
#define rep(i, n) for(int i = 0; i < (n); i++)
int main() {
    ll a;
    cin >> a;
    double d = 3.1415926535897;
    cout << 2 * a * d << endl;
}


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

#include <bits/stdc++.h>
using namespace std;
 
int main() {
  
  double a;
  cin >> a;
  cout << a * 2 * 3.14 << endl;
 
}


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

#include <bits/stdc++.h>
using namespace std;
int main()
{   ios_base::sync_with_stdio(0);
    cin.tie(0);
    const double pi = 3.14159265358979323846;
    long long R;
    cin >> R;
    cout << 2*pi*R <<endl;
    return 0;
}

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

#include <iostream>
#include <vector>
#include <algorithm>
#include <map>
#include <stdio.h>
using namespace std;
#define rep(i, n) for (int i = 0; i < (int)(n); i++)

#define PI 3.1415926535

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

    printf("%lf", (double)N * (double)2.0 * (double)PI);

}


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

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


int main(){
	double a;
	cin >> a;
	cout << 2*a*3.14 << endl;
	return 0;
}

Compiler output:
main.c: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;
#define ll long long int
#define ld long double
#define vi vector<int>
#define vll vector<ll>
#define vb vector<bool>
#define vpll vector<pair<ll,ll>>
#define pqi priority_queue<int>
#define pql priority_queue<ll>
#define fi first
#define se second
#define pb push_back
#define pi pair<int,int>
#define pll pair<ll,ll>
#define mii map<int,int>
#define mll map<ll,ll>
#define mib map<int,bool>
#define mlb map<ll,bool>
#define f(i,k,n) for(ll i=k;i<n;i++)
#define trav(a, x) for(auto& a : x)
#define all(x) x.begin(), x.end()
#define endl "\n"
#define IOS ios_base::sync_with_stdio(false); cin.tie(NULL); cout.tie(NULL);
const ll mod=1e9+7;
int main()
{
    IOS
    ld r;
    cin>>r;
    ld pii=3.141592653589793238;
    ld ans=2*pii*r;
    cout<<ans<<endl;
}

Compiler output:
main.c: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>
#define rep(i,n) for (int i = 0; i < (n); ++i)
using namespace std;
using ll = long long;
typedef std::pair<int,int> ipair;

int main()
{
    float r;
    cin >> r;
    float len;
    const double PI = acos(-1);
    len = 2*r*PI;
    
    cout << len << endl;

    return 0;
}

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

import sys
from math import factorial
from collections import Counter
from fractions import Fraction
import heapq, bisect, fractions
import math
import itertools
sys.setrecursionlimit(10 ** 5 + 10)
INF = 10**15 +5
def input(): return sys.stdin.readline().strip()
def INT(): return int(input())
def MAP(): return map(int, input().split())
def LIST(): return list(map(int, input().split()))
MOD = 10**9 + 7

R = INT()
print(R*2*math.pi)

Compiler output:
main.c:1:1: error: unknown type name 'import'
    1 | import sys
      | ^~~~~~
main.c:2:1: error: expected '=', ',', ';', 'asm' or '__attribute__' before 'from'
    2 | from math import factorial
      | ^~~~
main.c:2:1: error: unknown type name 'from'
Language: C

#include <iostream>
#include <string>
#include <vector>
#include <math.h>
#include <algorithm>
#define rep(i,n) for (int i = 0; i < (n); ++i)
using ll = long long;
using namespace std;
int main()
{
	int r;
	cin >> r;
	cout << 2*r*3.141592 << endl;
	return 0;
}


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

n = int(input())
  
print(n * 3.14159265)

Compiler output:
main.c:1:1: warning: data definition has no type or storage class
    1 | n = int(input())
      | ^
main.c:1:1: error: type defaults to 'int' in declaration of 'n' [-Wimplicit-int]
main.c:1:5: error: expected expression before 'int'
    1 | n = int(input())
      |     ^~~
Language: C

#include <cstdio>
#include <iostream>
#include <string>
#include <cstring>
using namespace std;
int a[100], b[100], c[200];
int main()
{
	string n,m;
	cin >> n >> m;
	
	int len_n,len_m,max_len,i,j,w,s,k;
	
	len_n = n.size();
	len_m = m.size();
	
	for(i=0;i<=len_n - 1;i++)
	   a[i] = n[len_n-i-1]-48;
	   
	for(i=0;i<=len_m - 1;i++)
	   b[i] = m[len_m-i-1]-48;   
	   
	   for(i=0;i<=len_n - 1;i++)
	   for(i=0;j<=len_m - 1;j++)
	   {
	   	  w = i+j;
	   	  s = a[i]*b[i];
	   	  c[w] += s%10;
	   	  c[w+1] += c[w]/10+s/10;
	   	  c[w] = c[w]%10;
	   }
	   
	   k =len_n+len_m;
	   while(c[k]==0&&k>0) k--;
	   
	   cout << n << "*" << m <<"=";
	   
	   for(i=k;i>=0;i--)cout << c[j];
	   return 0;
}  

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

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

int main() {
  int i, r;
  double ans;
  
  cin >> r;
  
  ans = 2 * M_PI * r;
  
  cout << ans << endl;
}

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

#include<iostream>
using namespace std;
int main()
{
  float R;
  cin>>R;
  double C = 2*R*3.14159;
  cout<<C;
  return 0;
}

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

#include <iostream>
using namespace std;

int main()
{

	int a;
	cin >> a;

	double b;

	b = a * 2 * 3.14;
	cout << b << endl;

	cin.get();
    cin.get();
    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>
#include<bits/stdc++.h>

int main()
{
  double r, Hr;
  scanf("%f",&r);
  Hr = 2.0 * M_PI * r;
  prinrf("%f", Hr);
  return 0;
}

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

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

int main() {
  int R;
  cin >> R;
  cout << 2 * M_PI * R << endl;
}

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

#include <iostream>
#include <vector>
#include <queue>
#include <iostream>
#include <iomanip>
#define PI 3.14159265359

using namespace std;

int main() {

    int N; cin >> N;

    cout << N * 2 * PI << endl;
}

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

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

typedef long long int ll;

#define fast ios_base::sync_with_stdio(false);cin.tie(NULL);cout.tie(NULL);
#define endl "\n"

int main()
{
     fast;
	float r,res;
	float pi = 3.141592653
    cin>>r;
  	cout<<2*pi*r<<endl;
     return 0;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:14:5: error: expected ',' or ';' before 'cin'
   14 |     cin>>r;
      |     ^~~
Language: C++

#include <iostream>
#include <string.h>
#define PI 6.28318530717958623200
int main()
{
	long long int a;
  cin>>a;
  cout<<fixed()<<setprecision(20)<<a*PI*2*1.0;
}


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>>a;
      |   ^~~
      |   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:8:3: error: 'cout' was not declared in this scope; did you mean 'std::cout'?
    8 |   cout<<fixed()<<setprecision(20)<<a*PI*2*1.0;
      |   ^~~~
      |   std::cout
/usr/include/c++/14/iostream:63:18: note: 'std::cout' declared here
   63 |   extern ostream cout;          ///< Linked to standard output
      |                  ^~~~
a.cc:8:9: error: 'fixed' was not declared in this scope; did you mean 'std::fixed'?
    8 |   cout<<fixed()<<setprecision(20)<<a*PI*2*1.0;
      |         ^~~~~
      |         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:8:18: error: 'setprecision' was not declared in this scope
    8 |   cout<<fixed()<<setprecision(20)<<a*PI*2*1.0;
      |                  ^~~~~~~~~~~~
Language: C++

#include <bits/stdc++.h>
using namespace std;
double pi = 3.14159;
int main(void){
  double r;
  cin >> r;
  cout << setprecision(20) <<  2*r*pi;
  cout << 
  return 0;
}
  

Compiler output:
a.cc: In function 'int main()':
a.cc:9:3: error: expected primary-expression before 'return'
    9 |   return 0;
      |   ^~~~~~
Language: C

#include<bits/stdc++.h>

using namespace std;

#define ll long long 
#define ld long double
#define pii pair<int,int>
#define pll pair<ll,ll>
#define mkp make_pair
#define pb push_back
#define pf push_front
#define popb pop_back
#define popf pop_front
#define ff first
#define ss second
#define endl "\n"
#define MOD 1000000007
#define MOD1 998244353

ll GCD(ll x,ll y){if(y==0)return x;return GCD(y,x%y);}
ll LCM(ll x,ll y){return (x*y)/(GCD(x,y));}
ll LOGK(ll x,ll k){if(x>=k)return 1+LOGK(x/k,k);return 0;}
ll MPOW( ll a, ll b, ll m) { if(b==0) return 1; ll x=MPOW(a,b/2,m); x=(x*x)%m; if(b%2==1) x=(x*a)%m; return x;}
ll MINV(ll a,ll m) {return MPOW(a,m-2,m);}

class pnc{
  ll FACT_MAX,MODU;
  vector<ll> fact;
public:
  pnc( ll n, ll m) { FACT_MAX = n; fact.resize(FACT_MAX); MODU = m; MFACT_INIT(MODU);}
  void MFACT_INIT( ll m) { fact[0]=1; for(ll i=1;i<FACT_MAX;++i) fact[i]=(i*fact[i-1])%MODU;}
  ll MFACT( ll n) { return fact[n];}
  ll PERM( ll n, ll r) { return (fact[n]*::MINV(fact[n-r],MODU))%MODU;}
  ll COMB( ll n , ll r) { return (PERM(n,r)*::MINV(fact[r],MODU))%MODU;}
};

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

    ll test=1;
    //cin>>test;
    while(test--)
    {
        ll r;
        cin>>r;

        cout<<setprecision(10);

        ld ans=(2*22*r)/7.0;

        cout<<ans;
    }
}

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

#include <iostream>
#include <cmath>
#include <algorithm>
#include <string>
#include <vector>
#include <math.h>

typedef unsigned int u32;
typedef int i32;
typedef unsigned long long int u64;
typedef long long int i64;
typedef uint16_t u16;
typedef int16_t i16;
typedef uint8_t u8;
typedef int8_t i8;

const double PI = 3.141592653589793238463;

using namespace std;

const int MAXN = 1000500;
// const int MAXN = 1050;
// const long long int mod = 1000003;
//const int MAXVALUE = 1000000500;
//const long double EPS = 1e-7;

i64 mod = 1000000009;
i64 T, B;

i64 s_left = -1;
i64 d_left = -1;

i64 n, m, r;

int main() {
	ios_base::sync_with_stdio(0);
	cin.tie(0);

	cout.precision(16);

	cin >> r;
	cout << 2 * r*PI << endl;


	//a.resize(n + 1);
	//dp.assign(n + 1, -1);	

	return 0;
}

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

import java.util.Scanner;
public class Dreamoon{
	public static void main(String[] args){
		Scanner input = new Scanner(System.in);
		int rad = input.nextInt();
		System.out.println(2 * Math.PI * rad);
		
	}
}

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


#include <iostream>
#include <vector>
#include <math.h>
//v.erase(unique(v.begin(),v.end()),v.end());

using namespace std;
 
typedef long double ld;
typedef long long ll;
typedef  pair <ll, ll> pii;
 
const ll N = 200500;
const ll mod = 1e9 + 7;
const ld PI = 3.141592654



int main() {


	ld n;
	cin >> n;
 
	cout << (ld)2.0 * n * PI << endl;
	
	return 0;
}

Compiler output:
a.cc:19:1: error: expected ',' or ';' before 'int'
   19 | int main() {
      | ^~~
Language: C

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

int main() {
  double R;
  cin >> R;
  
  double r = R * 6.28318530;
  cout << r << endl;
}

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

/*package whatever //do not write package name here */

import java.io.*;
import java.util.*;

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

		System.out.println(2*3.14285714*r);
	}
}

Compiler output:
Main.java:11: error: cannot find symbol
		System.out.println(2*3.14285714*r);
		                                ^
  symbol:   variable r
  location: class Main
1 error
Language: C++

#include <iostream
#include <stdio.h>

using namespace std;

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

    double pai = 6.2831853;
    printf("%.5f\n", n * pai);
    return 0;
}

Compiler output:
a.cc:1:19: error: missing terminating > character
    1 | #include <iostream
      |                   ^
Language: C

//#include<bits/stdc++.h>
#include<iostream>
#include<string>
#include<vector>
#include<utility>
#include<cmath>
#include<map>
#include<functional>
#include<queue>
#include<set>
#include<stack>
#include<iomanip>
using namespace std;
using ll = long long;
#define rep(i,n) for(ll i=0;i<(n);i++)
template<typename T =ll> using v = vector<T>;
template<typename T =ll> using vv = v<v<T>>;
template<typename T =ll,typename U =ll> using p = pair<T,U>;
template<typename T> T chmin(T &a,T b) {return a=min(a,b);}
template<typename T> T chmax(T &a,T b) {return a=max(a,b);}
const ll INF = (ll)1e9;

void a(){
    double r; cin >> r;
    cout<< fixed <<setprecision(15) <<2*M_PI*r<<endl;
}

void b(){
    
}


void c(){

}

void d(){

}

void e(){

}

int main(){
    a();
    return 0;
}

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