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

import java.util.*;
import java.lang.*;
import java.io.*;
class Main{
  public static void main(String[] args){
    int a = sc.nextInt();
     int b = sc.nextInt();
     int h = sc.nextInt();
     int m = sc.nextInt();
    int re = (h*h)+(r*r);
    double res = Math.sqrt(re);
    System.out.println(res);
    
  }
}

Compiler output:
Main.java:6: error: cannot find symbol
    int a = sc.nextInt();
            ^
  symbol:   variable sc
  location: class Main
Main.java:7: error: cannot find symbol
     int b = sc.nextInt();
             ^
  symbol:   variable sc
  location: class Main
Main.java:8: error: cannot find symbol
     int h = sc.nextInt();
             ^
  symbol:   variable sc
  location: class Main
Main.java:9: error: cannot find symbol
     int m = sc.nextInt();
             ^
  symbol:   variable sc
  location: class Main
Main.java:10: error: cannot find symbol
    int re = (h*h)+(r*r);
                    ^
  symbol:   variable r
  location: class Main
Main.java:10: error: cannot find symbol
    int re = (h*h)+(r*r);
                      ^
  symbol:   variable r
  location: class Main
6 errors
Language: C++

#include <iostream>
#include <vector>
#include <map>
#include <algorithm>
#include <numeric>
#include <queue>
#include <deque>
#include <string>
#include <iomanip>

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

#define rep(i, N) for (ll i = 0; i < (N); ++i)

int main()
{
    cin.tie(nullptr);

    int A, B, H, M;

    std::cin >> A >> B >> H >> M;

    double const Hpos = H / 12. * 360 + M / 60. * (360 / 12);
    double const Mpos = M / 60. * 360;
    double const diffpos_abs = std::abs(Hpos - Mpos);
    double const diff_pos = std::min(diffpos_abs, 360 - diffpos_abs);
    double const diff_rad = diff_pos / 180 * 3.14159265358979;

    double const ans = std::sqrt(A * A + B * B - 2 * A * B * std::cos(diff_rad));

    std::cout << std::setprecision(15) << ans << std::endl;

    return 0;
}


Compiler output:
a.cc: In function 'int main()':
a.cc:32:29: error: 'sqrt' is not a member of 'std'; did you mean 'sort'?
   32 |     double const ans = std::sqrt(A * A + B * B - 2 * A * B * std::cos(diff_rad));
      |                             ^~~~
      |                             sort
a.cc:32:67: error: 'cos' is not a member of 'std'; did you mean 'ios'?
   32 |     double const ans = std::sqrt(A * A + B * B - 2 * A * B * std::cos(diff_rad));
      |                                                                   ^~~
      |                                                                   ios
Language: C++

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

int main(){
    int A,B,H,M;
    cin >> A >> B >> H >> M;
    double th,tm,ceta,ans;
    tm = M*(2*M_PI/60);
    th = (H*30+M)*(2*M_PI/720)
    ceta = abs(th-tm);
    ans = sqrt(A*A + B*B - 2 * A * B * cos(ceta)); 
    cout.precision(20);
    cout << ans << endl;
}

Compiler output:
a.cc:4:17: error: 'math' is not a namespace-name
    4 | using namespace math;
      |                 ^~~~
a.cc: In function 'int main()':
a.cc:11:31: error: expected ';' before 'ceta'
   11 |     th = (H*30+M)*(2*M_PI/720)
      |                               ^
      |                               ;
   12 |     ceta = abs(th-tm);
      |     ~~~~
Language: C++

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

int main(){
    int A,B,H,M;
    cin >> A >> B >> H >> M;
    double th,tm,ceta,ans;
    tm = M*(2*M_PI/60);
    th = (H*30+M)*(2*M_PI/720)
    ceta = abs(th-tm);
    ans = A*A + B*B - 2 * A * B * cos(ceta); 
    cout.precision(20);
    cout << ans << endl;
}

Compiler output:
a.cc:4:17: error: 'math' is not a namespace-name
    4 | using namespace math;
      |                 ^~~~
a.cc: In function 'int main()':
a.cc:11:31: error: expected ';' before 'ceta'
   11 |     th = (H*30+M)*(2*M_PI/720)
      |                               ^
      |                               ;
   12 |     ceta = abs(th-tm);
      |     ~~~~
Language: C++

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

int main(){
    int A,B,H,M;
    cin >> A >> B >> H >> M;
    double th,tm,ceta,ans;
    tm = M*(2*M_PI/60);
    th = (H*30+M)*(2*M_PI/720)
    ceta = abs(th-tm);
    ans = A*A + B*B - 2 * A * B * cos(ceta); 
    cout.precision(20);
    cout << ans << endl;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:10:31: error: expected ';' before 'ceta'
   10 |     th = (H*30+M)*(2*M_PI/720)
      |                               ^
      |                               ;
   11 |     ceta = abs(th-tm);
      |     ~~~~
Language: C++

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

int main(){
    int A,B,H,M;
    cin >> A >> B >> H >> M;
    double th,tm,ceta,ans;
    tm = M*(2*M_PI/60);
    th = (H*30+M)*(2*M_PI/720)
    ceta = abs(th-tm);
    ans = A*A + B*B - 2 * A * B * cos(ceta); 
    cout.precision(20);
    cout << ans << endl;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:9:31: error: expected ';' before 'ceta'
    9 |     th = (H*30+M)*(2*M_PI/720)
      |                               ^
      |                               ;
   10 |     ceta = abs(th-tm);
      |     ~~~~
Language: C++

#include <iostream>
#include <iomanip>
#include <cmath>
 
int main()
{
  const double AHOUR = 30.0, AMINH = 0.2, AMIN = 6, PI = std::acos(-1);
  int a, b, h, m;
  std::cin >> a >> b >> h >> m;
  
  double hourAngle, minAngle, betAngle;
  
  hourAngle = h * AHOUR + m * AMINH;
  minAngle = m * AMIN;
  while(minAngle >= 360) minAngle -= 360;
  betAngle = hourAngle - minAngle;
  betAngle = betAngle >= 0 ? betAngle : betAngle * -1;
  std::cout << setprecision(12) << std::sqrt(a * a + b * b - 2 * a * b * std::cos(betAngle * PI / 180));
  return 0;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:18:16: error: 'setprecision' was not declared in this scope; did you mean 'std::setprecision'?
   18 |   std::cout << setprecision(12) << std::sqrt(a * a + b * b - 2 * a * b * std::cos(betAngle * PI / 180));
      |                ^~~~~~~~~~~~
      |                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)
      |   ^~~~~~~~~~~~
Language: C++

#include <iostream>
#include <cmath>
 
int main()
{
  const double AHOUR = 30.0, AMINH = 0.2, AMIN = 6, PI = std::acos(-1);
  int a, b, h, m;
  std::cin >> a >> b >> h >> m;
  
  double hourAngle, minAngle, betAngle;
  
  hourAngle = h * AHOUR + m * AMINH;
  minAngle = m * AMIN;
  while(minAngle >= 360) minAngle -= 360;
  betAngle = hourAngle - minAngle;
  betAngle = betAngle >= 0 ? betAngle : betAngle * -1;
  std::cout << std::setprecision(12) << std::sqrt(a * a + b * b - 2 * a * b * std::cos(betAngle * PI / 180));
  return 0;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:17:21: error: 'setprecision' is not a member of 'std'
   17 |   std::cout << std::setprecision(12) << std::sqrt(a * a + b * b - 2 * a * b * std::cos(betAngle * PI / 180));
      |                     ^~~~~~~~~~~~
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>
 
int main()
{
  const double AHOUR = 30.0, AMINH = 0.2, AMIN = 6, PI = std::acos(-1);
  int a, b, h, m;
  std::cin >> a >> b >> h >> m;
  
  double hourAngle, minAngle, betAngle;
  
  hourAngle = h * AHOUR + m * AMINH;
  minAngle = m * AMIN;
  while(minAngle >= 360) minAngle -= 360;
  betAngle = hourAngle - minAngle;
  betAngle = betAngle >= 0 ? betAngle : betAngle * -1;
  std::cout << setprecision(12) << std::sqrt(a * a + b * b - 2 * a * b * std::cos(betAngle * PI / 180));
  return 0;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:17:16: error: 'setprecision' was not declared in this scope
   17 |   std::cout << setprecision(12) << std::sqrt(a * a + b * b - 2 * a * b * std::cos(betAngle * PI / 180));
      |                ^~~~~~~~~~~~
Language: C++

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

float main() {
  float A,B,C,D,E,H,M,x,y,z;
  scanf("%f %f %f %f",&A,&B,&H,&M);
  x = M_PI * M / 30;
  y = M_PI * H / 6 + M_PI * M / 360;
  if (x>=y)
    z = x - y;
  else
    z = y - x;
  C = cos(z);
  D = A * A + B * B - 2 * A * B * C;
  E = sqrt(D);
  printf("%.10f",E);
}

Compiler output:
a.cc:4:1: error: '::main' must return 'int'
    4 | float main() {
      | ^~~~~
Language: C++

#pragma GCC target("avx2")
#pragma GCC optimize("O3")
#pragma GCC optimize("unroll-loops")
#include<iostream>
#include<cmath>
#include<numeric>
#include<functional>
#include<string>
#include<algorithm>
#include<vector>
#include<map>
#include<iomanip>
#define rep(i,n) for(int i=0;i<n;i++)
#define rep1(i,n) for(int i=1;i<n;i++)
#define ll long long
#define INF 2147483647
using namespace std;
using Graph=vector<vector<int>>;

int main(){
  double a,b,h,m;
  cin>>a>>b>>h>>m;
  const double pi=acos(-1.0);
  cout<<setprecision(10)<<
    sqrt(a*a+b*b-2*a*b*cos((m*pi/60)-((60*h+m)*pi/720));
}

Compiler output:
a.cc: In function 'int main()':
a.cc:25:56: error: expected ')' before ';' token
   25 |     sqrt(a*a+b*b-2*a*b*cos((m*pi/60)-((60*h+m)*pi/720));
      |         ~                                              ^
      |                                                        )
Language: C++

#define pi 3.14159265358979323846

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

int main() {
	
	long double a,b,h,m;
	cin>>a>>b>>h>>m;
	
	long double hdeg=h*30;
	long double mdeg=m*6;
	hdeg+=mdeg/12;
	long double deg = abs(hdeg-mdeg);
	
	long double cosdeg = cos(deg *pi/180);
	long double asqr=a*a;
	long double bsqr=b*b;
	long double c = sqrt(asqr+bsqr-2*a*b*cosdeg);
	cout<< fixed << showpoint ;
	cout<< steprecision(20);
	cout<<c;
	
	return 0;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:23:16: error: 'steprecision' was not declared in this scope
   23 |         cout<< steprecision(20);
      |                ^~~~~~~~~~~~
Language: C++

#define pi 3.14159265358979323846

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

int main() {
	
	long double a,b,h,m;
	cin>>a>>>b>>h>>m;
	
	long double hdeg=h*30;
	long double mdeg=m*6;
	hdeg+=mdeg/12;
	long double deg = abs(hdeg-mdeg);
	
	long double cosdeg = cos(dig *pi/180);
	long double asqr=a*a;
	long double bsqr=b*b;
	long double c = sqrt(asqr+bsqr-2*a*b*cosdeg);
	cout<< fixed << showpoint ;
	cout<< steprecision(20);
	cout<<c;
	
	return 0;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:11:17: error: expected primary-expression before '>' token
   11 |         cin>>a>>>b>>h>>m;
      |                 ^
a.cc:11:19: error: invalid operands of types 'long double' and 'long double' to binary 'operator>>'
   11 |         cin>>a>>>b>>h>>m;
      |                  ~^~~
      |                  |  |
      |                  |  long double
      |                  long double
a.cc:18:34: error: 'dig' was not declared in this scope; did you mean 'deg'?
   18 |         long double cosdeg = cos(dig *pi/180);
      |                                  ^~~
      |                                  deg
a.cc:23:16: error: 'steprecision' was not declared in this scope
   23 |         cout<< steprecision(20);
      |                ^~~~~~~~~~~~
Language: C

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

int max(int a,int b){
  if(a > b) return a;
  else return b;
}
int min(int a, int b){
  if(a < b) return a;
  else return b;
}

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

int max(int a,int b){
  if(a > b) return a;
  else return b;
}
int min(int a, int b){
  if(a < b) return a;
  else return b;
}

#define PI 3.14159265358979323846264338327950

int main(){

  int a,b,h,m;
  scanf("%d%d%d%d",&a, &b, &h, &m);

  double angle = abs( ((double)h + (double)m/60) * 30 - (double)m * 6 );
  double rad = (angle /180)* PI;

  //printf("%.10f ",h);
  double ans = sqrt((double)a*a + (double)b*b -(double)2*a*b*cos(rad));
  printf("%.11f",ans);

  return 0;
}


int main(){

  int a,b,h,m;
  scanf("%d%d%d%d",&a, &b, &h, &m);

  double angle = abs( ((double)h + (double)m/60) * 30 - (double)m * 6 );
  double rad = (angle /180)* PI;

  //printf("%.10f ",h);
  double ans = sqrt((double)a*a + (double)b*b -(double)2*a*b*cos(rad));
  printf("%.11f",ans);

  return 0;
}


Compiler output:
main.c:20:5: error: redefinition of 'max'
   20 | int max(int a,int b){
      |     ^~~
main.c:6:5: note: previous definition of 'max' with type 'int(int,  int)'
    6 | int max(int a,int b){
      |     ^~~
main.c:24:5: error: redefinition of 'min'
   24 | int min(int a, int b){
      |     ^~~
main.c:10:5: note: previous definition of 'min' with type 'int(int,  int)'
   10 | int min(int a, int b){
      |     ^~~
main.c:47:5: error: redefinition of 'main'
   47 | int main(){
      |     ^~~~
main.c:31:5: note: previous definition of 'main' with type 'int()'
   31 | int main(){
      |     ^~~~
Language: C

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

int max(int a,int b){
  if(a > b) return a;
  else return b;
}
int min(int a, int b){
  if(a < b) return a;
  else return b;
}

#define PI = 3.14159265358979323846264338327950

int main(){

  int a,b,h,m;
  scanf("%d%d%d%d",&a, &b, &h, &m);

  double angle = abs( ((double)h + (double)m/60) * 30 - (double)m * 6 );
  double rad = (angle /180)* PI;

  //printf("%.10f ",h);
  double ans = sqrt((double)a*a + (double)b*b -(double)2*a*b*cos(rad));
  printf("%.11f",ans);

  return 0;
}


Compiler output:
main.c: In function 'main':
main.c:15:12: error: expected expression before '=' token
   15 | #define PI = 3.14159265358979323846264338327950
      |            ^
main.c:23:30: note: in expansion of macro 'PI'
   23 |   double rad = (angle /180)* PI;
      |                              ^~
Language: C++

#include <bits/stdc++.h>
using namespace std;
const double PI = acos(-1);


int main()
{
    double A,B,H,M;
    cin>>A>>B>>H>>M;
  
    double kakua = (H/12+M/720)*2*PI;
    double kakub = (M/60)*2*PI;
    double xa,xb,ya,yb;
    
    xa = Acos(kakua);
    xb = Bcos(kakub);
    ya = Asin(kakua);
    yb = Bsin(kakub);
  
   double s,dx,dy;
  
  dx = abs(xa-xb);
  dy = abs(ya-yb);
  
  
  s = sqrt(dx*dx+dy*dy);
  
  cout<<setprecision(10)<<s<<endl;
  
}

Compiler output:
a.cc: In function 'int main()':
a.cc:15:10: error: 'Acos' was not declared in this scope; did you mean 'acos'?
   15 |     xa = Acos(kakua);
      |          ^~~~
      |          acos
a.cc:16:10: error: 'Bcos' was not declared in this scope; did you mean 'cos'?
   16 |     xb = Bcos(kakub);
      |          ^~~~
      |          cos
a.cc:17:10: error: 'Asin' was not declared in this scope; did you mean 'asin'?
   17 |     ya = Asin(kakua);
      |          ^~~~
      |          asin
a.cc:18:10: error: 'Bsin' was not declared in this scope; did you mean 'sin'?
   18 |     yb = Bsin(kakub);
      |          ^~~~
      |          sin
Language: C++

#include <bits/stdc++.h>
using namespace std;
#define lli long long int
#define rep(i, s, e) for (int i = s; i < e; i++)
#define endl '\n'
#define PI 3.14159265358979323L
int main()
{
    int A, B, H, M;
    cin >> A >> B >> H >> M;

    long double rad=((long double)H/12.0+(long double)(M/60.0)/12.0)-(long double)M/60.0)*2*PI;
    long double res = (long double)(A * A + B * B) - (long double)(2 * A * B) * cosl(rad);
    cout << sqrtl(res) << endl;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:12:89: error: expected ',' or ';' before ')' token
   12 |     long double rad=((long double)H/12.0+(long double)(M/60.0)/12.0)-(long double)M/60.0)*2*PI;
      |                                                                                         ^
Language: C++

#include<stdio.h>
#include<math.h>
#include<bits/stdc++.h>
const double  pi=acos(-1);
using namespace std;
int main()
{
   int a,b,h,m;
   float ng;
   double l;
  cin>>a>>b>>h>>m;
  ng=abs((60*h-11*m)/2);
  ng=(ng*pi/180);
  		ng=min(2*pi-ng,ng);
  l=(double)a*a+b*b-(double)2*a*b*cos(ng);
  printf("%.15f",sqrt(l));
  return 0;

Compiler output:
a.cc: In function 'int main()':
a.cc:14:23: error: no matching function for call to 'min(double, float&)'
   14 |                 ng=min(2*pi-ng,ng);
      |                    ~~~^~~~~~~~~~~~
In file included from /usr/include/c++/14/bits/specfun.h:43,
                 from /usr/include/c++/14/cmath:3906,
                 from /usr/include/c++/14/math.h:36,
                 from a.cc:2:
/usr/include/c++/14/bits/stl_algobase.h:233:5: note: candidate: 'template<class _Tp> constexpr const _Tp& std::min(const _Tp&, const _Tp&)'
  233 |     min(const _Tp& __a, const _Tp& __b)
      |     ^~~
/usr/include/c++/14/bits/stl_algobase.h:233:5: note:   template argument deduction/substitution failed:
a.cc:14:23: note:   deduced conflicting types for parameter 'const _Tp' ('double' and 'float')
   14 |                 ng=min(2*pi-ng,ng);
      |                    ~~~^~~~~~~~~~~~
/usr/include/c++/14/bits/stl_algobase.h:281:5: note: candidate: 'template<class _Tp, class _Compare> constexpr const _Tp& std::min(const _Tp&, const _Tp&, _Compare)'
  281 |     min(const _Tp& __a, const _Tp& __b, _Compare __comp)
      |     ^~~
/usr/include/c++/14/bits/stl_algobase.h:281:5: note:   candidate expects 3 arguments, 2 provided
In file included from /usr/include/c++/14/algorithm:61,
                 from /usr/include/x86_64-linux-gnu/c++/14/bits/stdc++.h:51,
                 from a.cc:3:
/usr/include/c++/14/bits/stl_algo.h:5686:5: note: candidate: 'template<class _Tp> constexpr _Tp std::min(initializer_list<_Tp>)'
 5686 |     min(initializer_list<_Tp> __l)
      |     ^~~
/usr/include/c++/14/bits/stl_algo.h:5686:5: note:   candidate expects 1 argument, 2 provided
/usr/include/c++/14/bits/stl_algo.h:5696:5: note: candidate: 'template<class _Tp, class _Compare> constexpr _Tp std::min(initializer_list<_Tp>, _Compare)'
 5696 |     min(initializer_list<_Tp> __l, _Compare __comp)
      |     ^~~
/usr/include/c++/14/bits/stl_algo.h:5696:5: note:   template argument deduction/substitution failed:
a.cc:14:23: note:   mismatched types 'std::initializer_list<_Tp>' and 'double'
   14 |                 ng=min(2*pi-ng,ng);
      |                    ~~~^~~~~~~~~~~~
a.cc:17:12: error: expected '}' at end of input
   17 |   return 0;
      |            ^
a.cc:7:1: note: to match this '{'
    7 | {
      | ^
Language: C

#include<stdio.h>
#include<stdlib.h>
#include<string.h>
#include<math.h>
 
#define PI 3.14159265358979323846264338327950L
 
int main(){
 
  int a,b;
  int h,m;
  scanf("%d%d%d%d",&a, &b, &h, &m);
 
  long double angle = absl( 30*(long double)h + 0.5*(long double)m - (double)m * 6 );
  long double rad;
    //rad = (angle /180)* M_PI;
 
  //printf("%.10f ",h);
  long double ans = (long double)a*a + (long double)b*b - (long double)(2*a*b)*cosl(angle * (PI / 180));
  printf("%20.20Lf\n",sqrtl(ans));
 
  return 0;
}

Compiler output:
main.c: In function 'main':
main.c:14:23: error: implicit declaration of function 'absl'; did you mean 'fabsl'? [-Wimplicit-function-declaration]
   14 |   long double angle = absl( 30*(long double)h + 0.5*(long double)m - (double)m * 6 );
      |                       ^~~~
      |                       fabsl
Language: C++

#include<bits/stc++.h>
using namespace std;
 
int main(){
  int a,b,h,m;
  cin>>a>>b>>h>>m;
  int min_degrees=6*m,hour_degrees=0.5*(60*h+m);
  int degrees=abs(hour_degrees-min_degrees);
  cout<<degrees;
  return 0;
}

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

#include<bits/stdc++.h>
using namespace std;
 
int main(){
  int a,b,h,m;
  cin>>a>>b>>h>>m;
  int min_degrees=6*m,hour_degrees=(0.5*(60*h+m))%360;
  int degrees=abs(hour_degrees-min_degrees);
  cout<<degrees;
  return 0;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:7:50: error: invalid operands of types 'double' and 'int' to binary 'operator%'
    7 |   int min_degrees=6*m,hour_degrees=(0.5*(60*h+m))%360;
      |                                    ~~~~~~~~~~~~~~^~~~
      |                                        |          |
      |                                        double     int
Language: C++

#include<bits/stdc++.h>
using namespace std;
 
int main(){
  int a,b,h,m;
  cin>>a>>b>>h>>m;
  int min_degrees=6*m,hour_degrees=0.5*(60*h+m)%360;
  int degrees=abs(hour_degrees-min_degrees);
  cout<<degrees;
  return 0;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:7:48: error: invalid operands of types 'double' and 'int' to binary 'operator%'
    7 |   int min_degrees=6*m,hour_degrees=0.5*(60*h+m)%360;
      |                                    ~~~~~~~~~~~~^~~~
      |                                       |         |
      |                                       double    int
Language: C++

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

int main(){
  int a,b,h,m;
  cin>>a>>b>>h>>m;
  int min_degrees=6*m,hour_degrees=0.5*(60*h+m)%360;
  int degrees=abs(hour_degrees-min_degrees);
  cout<<degrees;
  return 0;
}

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

#include<bits/stdc++.h>
using namespace std;
int main(){
   double a,b;
   int h,m;
   cin>>a>>b>>h>>m;
   h*=30,m*=6;
   double x=fabs(h,m);
   double ans=a*a+b*b-2*a*b*cos(x);
   printf("%.10lf\n",sqrt(ans));
   return 0;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:8:17: error: no matching function for call to 'fabs(int&, int&)'
    8 |    double x=fabs(h,m);
      |             ~~~~^~~~~
In file included from /usr/include/c++/14/ccomplex:39,
                 from /usr/include/x86_64-linux-gnu/c++/14/bits/stdc++.h:127,
                 from a.cc:1:
/usr/include/c++/14/complex:2429:5: note: candidate: 'template<class _Tp> _Tp std::fabs(const complex<_Tp>&)'
 2429 |     fabs(const std::complex<_Tp>& __z)
      |     ^~~~
/usr/include/c++/14/complex:2429:5: note:   candidate expects 1 argument, 2 provided
In file included from /usr/include/x86_64-linux-gnu/c++/14/bits/stdc++.h:114:
/usr/include/c++/14/cmath:250:5: note: candidate: 'template<class _Tp> constexpr typename __gnu_cxx::__enable_if<std::__is_integer<_Tp>::__value, double>::__type std::fabs(_Tp)'
  250 |     fabs(_Tp __x)
      |     ^~~~
/usr/include/c++/14/cmath:250:5: note:   candidate expects 1 argument, 2 provided
In file included from /usr/include/features.h:523,
                 from /usr/include/x86_64-linux-gnu/c++/14/bits/os_defines.h:39,
                 from /usr/include/x86_64-linux-gnu/c++/14/bits/c++config.h:683,
                 from /usr/include/c++/14/cassert:43,
                 from /usr/include/x86_64-linux-gnu/c++/14/bits/stdc++.h:33:
/usr/include/x86_64-linux-gnu/bits/mathcalls.h:195:1: note: candidate: 'double fabs(double)'
  195 | __MATHCALLX (fabs,, (_Mdouble_ __x), (__const__));
      | ^~~~~~~~~~~
/usr/include/x86_64-linux-gnu/bits/mathcalls.h:195:1: note:   candidate expects 1 argument, 2 provided
/usr/include/c++/14/cmath:242:3: note: candidate: 'constexpr long double std::fabs(long double)'
  242 |   fabs(long double __x)
      |   ^~~~
/usr/include/c++/14/cmath:242:3: note:   candidate expects 1 argument, 2 provided
/usr/include/c++/14/cmath:238:3: note: candidate: 'constexpr float std::fabs(float)'
  238 |   fabs(float __x)
      |   ^~~~
/usr/include/c++/14/cmath:238:3: note:   candidate expects 1 argument, 2 provided
Language: C++

#include <iostream>
#include <stdio.h>
#include <cmath>
using namespace std;
const double pi = acos(-1.0);
  
int main()
{
  	double a, b, h, m, d, ans;
  	cin >> a >> b >> h >> m;
 
    d = abs(h*30+1.0*m/2-m*6);
    ans=sqrt(a*a+b*b-2*a*b*cos(d*pi/180));
 
	cout << setprecision(20) << fixed << c <<endl;
  	return 0;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:15:17: error: 'setprecision' was not declared in this scope
   15 |         cout << setprecision(20) << fixed << c <<endl;
      |                 ^~~~~~~~~~~~
a.cc:4:1: note: 'std::setprecision' is defined in header '<iomanip>'; this is probably fixable by adding '#include <iomanip>'
    3 | #include <cmath>
  +++ |+#include <iomanip>
    4 | using namespace std;
a.cc:15:46: error: 'c' was not declared in this scope
   15 |         cout << setprecision(20) << fixed << c <<endl;
      |                                              ^
Language: C++

#include <iostream>
#include <string>
#include <algorithm>
#include <vector>
#include <iomanip>
#include <cmath>
#include <stdio.h>
#include <queue>
#include <deque>
#include <cstdio>
#include <set>
#include <map>
#include <bitset>
#include <stack>
#include <cctype>
using namespace std;
int main() {
	long double pi = 3.14159265358979;
	long double n, m;
	long double a, b;
	cin >> a >> b;
	cin >> n >> m;
	if (n >= 12) {
		n -= 12;
	}
	long double ans = abs(n * 30 - m * 5.5);
	if (ans > 180) {
		ans = 360 - ans;
	}
	long double r = ans * pi / 180;
	long double c = cos(r);
	long double ans1 = long double(a * a + b * b) - (long double)(2 * a * b) * c;
	ans1 = sqrt(ans1);
	cout << fixed << setprecision(12) << ans1 << endl;
	return 0;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:32:28: error: expected primary-expression before 'long'
   32 |         long double ans1 = long double(a * a + b * b) - (long double)(2 * a * b) * c;
      |                            ^~~~
Language: C++

#include <bits/stdc++.h>
#define rep(i, n) for (int i = 0; i < (int)(n); i++)
using namespace std;
using ll = long long;
#define PI 3.14159265358979323846264338327950L;
int main() {
    cout << fixed << setprecision(20); 
    int a , b , h , m;
    cin >> a >> b >> h >> m;
    double t = ((h * 5) + (5.0 * m / 60.0) - m) * PI / 30.0;
    double ans = sqrt(a * a + b * b - 2.0 * a * b * cos(t));
    cout << setprecision(20) << ans << endl;
    return 0;
}


Compiler output:
a.cc: In function 'int main()':
a.cc:10:54: error: expected primary-expression before '/' token
   10 |     double t = ((h * 5) + (5.0 * m / 60.0) - m) * PI / 30.0;
      |                                                      ^
Language: C++

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

int main()
{
  int a, b, h, m;
  float angleH, angleM, diffAngle, distance;
  cin >> a >> b >> h>>m;
  angleH = h * 360 / 12;
  angleM = m * 6;
  diffAngle = abs(angleH - angleM);
  distance = pow(a * a + b*b - 2 * a * b * cosine(diffAngle), 0.5);
  cout << distance;
  return 0;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:13:44: error: 'cosine' was not declared in this scope
   13 |   distance = pow(a * a + b*b - 2 * a * b * cosine(diffAngle), 0.5);
      |                                            ^~~~~~
Language: Java

import java.util.Scanner;
import  java.math.*;
public class a {
    public static void main(String args[]) {
        Scanner sc = new Scanner(System.in);
        while (sc.hasNext()) {
            double a = sc.nextInt();
            double b = sc.nextInt();
            double c = sc.nextInt();
            double d = sc.nextInt();
            double e  = Math.toRadians(90);
    e=Math.cos(e);

            System.out.printf("%.19f",Math.sqrt(a*a+b*b-a*b*2*e));
        }
    }
}


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

#include<bits/stdc++.h>
using namespace std;
#define ll long long
#define ld long double
#define mod 1000000007
#define f(i,a,b) for(ll i=a;i<b;i++)
#define IOS ios::sync_with_stdio(0); cin.tie(0); cout.tie(0);
#define ii pair<ll,ll>
#define vii vector<ii>
#define F first
#define S second
#define pb push_back
#define mp make_pair
#define MAX 1e9
 
ll modpow(ll base, ll exp, ll modulus) {base %= modulus;ll result = 1;while (exp > 0) {if (exp & 1) result = (result * base) % modulus;base = (base * base) % modulus;exp >>= 1;}return result;}
const ld pi=acos(-1);


int main(){
    IOS;
    // cout<<pi<<"\n";
    ll a,b,h,m;cin>>a>>b>>h>>m;
    ld mdeg=m*6;
    ld hdeg=h*30+mdeg/12;
    ld angle=abs(hdeg-mdeg);
    ld c=sqrt(a*a+b*b-2*a*b*cos(angle*(pi/180)));
    cout<<fixed<<setprecision(20)<<<<c;
    return 0;  
} 





Compiler output:
a.cc: In function 'int main()':
a.cc:28:36: error: expected primary-expression before '<<' token
   28 |     cout<<fixed<<setprecision(20)<<<<c;
      |                                    ^~
Language: C++

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

int main() {
  int a, b, h, m;
  cin >> a >> b >> h >> m;
 double PI= 3.141592653589793238;
 double rada = 30*h + 0.5*m;
 double radb = 6*m;
 double rad = rada - radb;
 double coscos = cos(rad*PI/180);
 
 double x = a*a + b*b -2*a*b*coscos;
 double y = sqrt(x);
 cout << fixed << setprecision(20);
 cout << y << endl;

Compiler output:
a.cc: In function 'int main()':
a.cc:16:20: error: expected '}' at end of input
   16 |  cout << y << endl;
      |                    ^
a.cc:4:12: note: to match this '{'
    4 | int main() {
      |            ^
Language: C++

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

long double A, B, H, M, hk, mk, k, ans;
cin >> A >> B >> H >> M;
//なんにも考えずに全部doubleで定義して入力
//hkは分針の角度,mkは時針の角度,kはその差で,ansが答え出力用

mk = M * 6;
hk = (H * 60 + M)* 0.5
k = fabs(hk - mk);
//ここまでで時計の針の角度を算出

k = k*(2*M_PI/360);
//角度をラジアンに変換
ans = 2 * A * B * cos(k);
A = A * A;
B = B * B;
ans = A + B - ans;
//ここまで余弦定理(c^2=a^2+b^2-2ab cos(a))
ans = sqrt(ans);
//平方根が答え

 printf("%.10Lf\n", ans);

}

Compiler output:
a.cc: In function 'int main()':
a.cc:12:23: error: expected ';' before 'k'
   12 | hk = (H * 60 + M)* 0.5
      |                       ^
      |                       ;
   13 | k = fabs(hk - mk);
      | ~
Language: C++

#include <bits/stdc++.h>

using namespace std;
typedef long long ll;
int mod=1e9+7;
const int N=2e5+100;
const long double pi=acos(-1.0);

int main()
{
   int a,b,h,m;
   scanf("%d%d%d%d",&a,&b,&h,&m);
   long double hd=2.0*pi*((long double)h/12.0+(long double)m/12.0/60.0-(long double) m/60.0);
   long double ans=long double(a*a+b*b)-2.0*(long double)a*b*cos(hd);
   printf("%.20lf\n",sqrt(ans));
    return 0;
}


Compiler output:
a.cc: In function 'int main()':
a.cc:14:20: error: expected primary-expression before 'long'
   14 |    long double ans=long double(a*a+b*b)-2.0*(long double)a*b*cos(hd);
      |                    ^~~~
Language: C++

#include <bits/stdc++.h>
#define _USE_MATH_DEFINES
#include <math.h>
#define PI 3.14159265358979323846264338327950L
using namespace std;
int main()
{
    int a,b,h,m;
    long double rad1,rad2,rad,d;
    cin>>a>>b>>h>>m;
    // rad2 = 2.0*PI*(long double)m * 6.0/360.0;
    // rad1 = 2.0*PI*((long double)h * 30.0 + 0.5*(long double)m)/360.0;
    long double rad = PI * 2 * (
            (long double)h / 12.0 + ((long double)m / 60.0) / 12.0 - (long
                double)m / 60.0);
    /*
    if(rad2>rad1)
    {
        if(rad2 - rad1 > PI)
        {
            rad = PI*2.0 - (rad2 - rad1);
        }else{
            rad = rad2 - rad1;
        }
    }else{
        if(rad1 - rad2 > PI)
        {
            rad = PI*2.0 - (rad1 - rad2);
        }else{
            rad = rad1 - rad2;
        }
    }
    if(rad == 0.0)
    {
        if(a>b)
        {
            d = (long double)(a-b);
        }else{
            d = (long double)(b-a);
        }
    }else if(rad == PI)
    {
        d = (long double)(a+b);
    }else{
        d = sqrt((long double)(a*a)+(long double)(b*b)-2.0*(long double)(a)*(long double)(b)*cosl(rad));
    }
    */
    // rad = rad1 - rad2;
    d = sqrt((long double)(a*a+b*b)-2.0*(long double)(2*a*b*cosl(rad)));
    cout<<d<<endl;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:13:17: error: redeclaration of 'long double rad'
   13 |     long double rad = PI * 2 * (
      |                 ^~~
a.cc:9:27: note: 'long double rad' previously declared here
    9 |     long double rad1,rad2,rad,d;
      |                           ^~~
Language: C++

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

int main() {
  long double pi = 3.14159265358979323846264338327950;
  int A, B, H, M;
  cin >> A >> B >> H >> M;
  long double rad = pi*2*((long double)H/12.0+((long double)M/60.0)/12.0-(long double)M/60.0); // cos(360-t)=cos(t)よりabsは取らなくて良い
  long double x = (long double)(A*A + B*B) - (long double)(2*A*B)*cosl(a);
  printf("%.20Lf", sqrt(x));
}


Compiler output:
a.cc: In function 'int main()':
a.cc:9:72: error: 'a' was not declared in this scope
    9 |   long double x = (long double)(A*A + B*B) - (long double)(2*A*B)*cosl(a);
      |                                                                        ^
Language: C++

#include<iostream>
#include<string>
#include<cstdio>
#include<vector>
#include<iomanip>
#include<cmath>
#include<algorithm>
#include<queue>
#include<set>
#include<unordered_map>
#include<stack>
#include<map>
#include<bitset>
#include <cstdlib>
#include<cstring>
#define ll long long;
#define pb push_back
const int MOD = 1e9 + 7;
const int qq = 1e5 + 10;
const int INF = 1e9 + 10;
const double eps = 1e-11;
const double pi = acos(-1.0); 
const double PI = 3.1415926535897932384;
using namespace std;
#define ma = 2147483647;
#define mi = -2147483647;
int main()
{

	ios::sync_with_stdio(0); cin.tie(0);

	long double a, b, h, m;
	cin >> a >> b >> h >> m;

	double md = double( m) * 6.0;
	double hd = double(h) * 30.0 + (double(m) / 60.0 ) * 30.0;
	double de = md - hd;
	if (de < 0)de *= -1.0;
	if (de >= 180.0)
	de = 360.0 - de;
	double ans = sqrt(-2.0 * double(a) * double(b) * cos(de * PI / 180) + double(a) * double(a) + double(b) * double(b));

	//printf("%.20lf", ans);
	cout.precision(20) << ans;

	
	return 0;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:44:28: error: invalid operands of types 'std::streamsize' {aka 'long int'} and 'double' to binary 'operator<<'
   44 |         cout.precision(20) << ans;
      |         ~~~~~~~~~~~~~~~~~~ ^~ ~~~
      |                       |       |
      |                       |       double
      |                       std::streamsize {aka long int}
Language: C++

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

using ll = long long;
#define PI 3.14159265358979323846264338327950L

int main()
{
    long double A, B, H, M, ans;
    cin >> A >> B >> H >> M;
    if (H == 0 && M == 0)
    {
        ans = abs(A = B);
    }
    long double h, m;
    h = 30 * H + 0.5 * M;
    m = 6 * M;
    long double Z = abs(h - m);
    ans = (A * A) + (B * B) - 2 * A * B * cos(Z * PI / 180.0);
    cout << fixed << setprecision(15) sqrt(ans) << endl;
    return 0;
}


Compiler output:
a.cc: In function 'int main()':
a.cc:20:38: error: expected ';' before 'sqrt'
   20 |     cout << fixed << setprecision(15) sqrt(ans) << endl;
      |                                      ^~~~~
      |                                      ;
Language: C++

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

int main() {
  double ans,rad,deg,A,B;
  double rad,H,M;
  cin >> A >> B >> H >> M;
  H = 30*H + 0.5*M;
  M *= 6;
  if(H > M){
    deg = H - M;
  }
  else{
    deg = M - H;
  }
  rad = cos((rad*M_PI)/180.0);
  ans = A*A + B*B - rad*2*A*B;
  cout << setprecision(10) << sqrt(ans) << endl;
  return 0;
}


Compiler output:
a.cc: In function 'int main()':
a.cc:6:10: error: redeclaration of 'double rad'
    6 |   double rad,H,M;
      |          ^~~
a.cc:5:14: note: 'double rad' previously declared here
    5 |   double ans,rad,deg,A,B;
      |              ^~~
Language: C++

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

const double Pi = acos(-1);

int main() {
    double a, b, h, m;
    cin >> a >> b >> h >> m;
    double ans;
    double w;

    
    ans = double sqrt(a*a + b*b - 2 * a * b * cos(pi*abs(h * 30. + m * 0.5 - 60*m)/180));
    printf("%.20f", ans);
}


Compiler output:
a.cc: In function 'int main()':
a.cc:16:11: error: expected primary-expression before 'double'
   16 |     ans = double sqrt(a*a + b*b - 2 * a * b * cos(pi*abs(h * 30. + m * 0.5 - 60*m)/180));
      |           ^~~~~~
Language: C++

#include <bits/stdc++.h>
using namespace std;
 
int main()
{
    int a,b,h,m;
    cin>>a>>b>>h>>m;
   double angle=max(30*h+0.5*m-6*m,6*m-(30*h+0.5*m));
    if(angle>180)angle=angle-180;
    angle=angle*M_PI/180;
    cout<<setprecision(20)<<fixed<<sqrt((long double)(a*a+b*b)-(long double)(2*a*b*cos(angle)));
    return 0;

Compiler output:
a.cc: In function 'int main()':
a.cc:12:14: error: expected '}' at end of input
   12 |     return 0;
      |              ^
a.cc:5:1: note: to match this '{'
    5 | {
      | ^
Language: C++


#include<bits/stdc++.h>
#define int long long int
#define boost ios_base::sync_with_stdio(false)
#define rep(i,a,b) for(int i=a;i<b;i++)
#define repp(i,a,b) for(int i=a;i<=b;i++)
#define pb push_back
#define mp make_pair
#define ff first
#define ss second
#define all(v) v.begin(),v.end()
#define allr(v) v.rbegin(),v.rend()
//#define test int t;cin>>t; while(t--)
#define vi vector<int> 
#define mi map<int,int> 
#define rrep(i,a,b) for(int i=a;i>=b;i--)
//typedef pair <int,int> pii
//typedef vector<pii> vpi
#define build(arr,n) { int arr[n+1]; repp(i,1,n)cin>>arr[i]; }
#define buildv(v,n) { vi v; repp(i,1,n){int x; cin>>x; v.pb(x);} } 
#define in_edges(m) repp(i,1,m){int a,b; cin>>a>>b; adj[a].pb(b); adj[b].pb(a);}
#define mod 1000000007
#define db double
#define pi 3.14159265358979323846264338327950288419716939937510582097494459230781640628620899
#define mx(arr) {*max_element(arr+1,arr+n+1);} 
using namespace std;
//vector<int> adj[100003];
//int vis[100003]={0};
//int dp[n+1]={0};
//vector<int> leaf;
signed main()
{
    int a,b,h,m;
    cin>>a>>b>>h>>m;
    db dh=0,dm=0;
    dh=(12-h)*30;
    dh-=(m/2);
    dm=(m*6);
    db angle=abs(dh-dm);
    //cout<<angle<<endl;
    db chck=(pi/180)*angle;
    //cout<<chck<<endl;
    db fa=sqrt(pow(a,2)+pow(b,2)-2*a*b*cos(chck))
    cout<<setprecision(50)<<fa;
    
}

Compiler output:
a.cc: In function 'int main()':
a.cc:44:5: error: expected ',' or ';' before 'cout'
   44 |     cout<<setprecision(50)<<fa;
      |     ^~~~
Language: C++

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

 
int main()
{
    int a,b,h,m;
    cin>>a>>b>>h>>m;
    double angle=max(30*h+0.5*m)-6*m,6*m-30*h-0.5*m);
    if(angle>180)angle=angle-180;
    angle=angle*M_PI/180;
    cout<<setprecision(20)<<fixed<<sqrt(a*a+b*b-2*a*b*cos(angle));
    return 0;
}
 
 

Compiler output:
a.cc: In function 'int main()':
a.cc:10:21: error: no matching function for call to 'max(double)'
   10 |     double angle=max(30*h+0.5*m)-6*m,6*m-30*h-0.5*m);
      |                  ~~~^~~~~~~~~~~~
In file included from /usr/include/c++/14/algorithm:60,
                 from /usr/include/x86_64-linux-gnu/c++/14/bits/stdc++.h:51,
                 from a.cc:1:
/usr/include/c++/14/bits/stl_algobase.h:257:5: note: candidate: 'template<class _Tp> constexpr const _Tp& std::max(const _Tp&, const _Tp&)'
  257 |     max(const _Tp& __a, const _Tp& __b)
      |     ^~~
/usr/include/c++/14/bits/stl_algobase.h:257:5: note:   candidate expects 2 arguments, 1 provided
/usr/include/c++/14/bits/stl_algobase.h:303:5: note: candidate: 'template<class _Tp, class _Compare> constexpr const _Tp& std::max(const _Tp&, const _Tp&, _Compare)'
  303 |     max(const _Tp& __a, const _Tp& __b, _Compare __comp)
      |     ^~~
/usr/include/c++/14/bits/stl_algobase.h:303:5: note:   candidate expects 3 arguments, 1 provided
In file included from /usr/include/c++/14/algorithm:61:
/usr/include/c++/14/bits/stl_algo.h:5706:5: note: candidate: 'template<class _Tp> constexpr _Tp std::max(initializer_list<_Tp>)'
 5706 |     max(initializer_list<_Tp> __l)
      |     ^~~
/usr/include/c++/14/bits/stl_algo.h:5706:5: note:   template argument deduction/substitution failed:
a.cc:10:21: note:   mismatched types 'std::initializer_list<_Tp>' and 'double'
   10 |     double angle=max(30*h+0.5*m)-6*m,6*m-30*h-0.5*m);
      |                  ~~~^~~~~~~~~~~~
/usr/include/c++/14/bits/stl_algo.h:5716:5: note: candidate: 'template<class _Tp, class _Compare> constexpr _Tp std::max(initializer_list<_Tp>, _Compare)'
 5716 |     max(initializer_list<_Tp> __l, _Compare __comp)
      |     ^~~
/usr/include/c++/14/bits/stl_algo.h:5716:5: note:   candidate expects 2 arguments, 1 provided
Language: C++

#include <bits/stdc++.h>

#define f(i,a,b) for( ll i = a; i < b ; i++ ) 
#define af(i,a,b) for( ll i = a; i >= b ; i--)
#define rep(i,a,b,k) for(ll i = a; i < b ; i+= k )
#define arep(i,a,b,k) for( ll i = a; i >= b ; i-= k)
#define ones(x) (ll) __builtin_popcount(x)
#define fs first
#define sc second
#define pb push_back
#define po pop_back
#define mp make_pair	
#define sz(a) (ll) a.size()
#define all(a) a.begin(), a.end()
#define sor(a) sort( a.begin(), a.end() )
#define fastio ios_base::sync_with_stdio(false);cin.tie(NULL)
#define ller ios::sync_with_stdio(false);cin.tie(nullptr);cout.tie(nullptr)
#define yes cout<<"YES\n"
#define no cout<<"NO\n"
#define PI 3.1415926535
using namespace std;
typedef long long ll;
typedef long double ld;	
typedef pair<ll,ll> ii ;
typedef vector<ll>  vi ;
typedef vector<ii> vii ;
	 
const ll MAX = 10000000;
const ll inf = 5e18-1;


int main() {
	fastio;
	ll a,b,h,m;
	cin>>a>>b>>h>>m;
	m+=h*60;
	ld x,y;
	x = (6*m)%360;
	y = (0.5*m)%360;
	ld ang = abs(x-y);
	ld ans;
	ans = sqrt(a*a + b*b - 2*a*b*cos(ang*PI/180));
	cout<<fixed<<setprecision(9)<<ans<<"\n";
	return 0;
	}

Compiler output:
a.cc: In function 'int main()':
a.cc:39:20: error: invalid operands of types 'double' and 'int' to binary 'operator%'
   39 |         y = (0.5*m)%360;
      |             ~~~~~~~^~~~
      |                 |   |
      |                 |   int
      |                 double
Language: C++

#include <bits/stdc++.h>
using namepsace std;
#define int long long int 

signed main(){
	int a,b,h,m;
 	long double theta = abs(m*6-h*30);
  	theta = min(360.0-theta,theta);
  	cout<<theta<<endl;
}

Compiler output:
a.cc:2:7: error: expected nested-name-specifier before 'namepsace'
    2 | using namepsace std;
      |       ^~~~~~~~~
a.cc: In function 'int main()':
a.cc:8:17: error: 'min' was not declared in this scope; did you mean 'std::min'?
    8 |         theta = min(360.0-theta,theta);
      |                 ^~~
      |                 std::min
In file included from /usr/include/c++/14/algorithm:61,
                 from /usr/include/x86_64-linux-gnu/c++/14/bits/stdc++.h:51,
                 from a.cc:1:
/usr/include/c++/14/bits/stl_algo.h:5696:5: note: 'std::min' declared here
 5696 |     min(initializer_list<_Tp> __l, _Compare __comp)
      |     ^~~
a.cc:9:9: error: 'cout' was not declared in this scope; did you mean 'std::cout'?
    9 |         cout<<theta<<endl;
      |         ^~~~
      |         std::cout
In file included from /usr/include/x86_64-linux-gnu/c++/14/bits/stdc++.h:146:
/usr/include/c++/14/iostream:63:18: note: 'std::cout' declared here
   63 |   extern ostream cout;          ///< Linked to standard output
      |                  ^~~~
a.cc:9:22: error: 'endl' was not declared in this scope; did you mean 'std::endl'?
    9 |         cout<<theta<<endl;
      |                      ^~~~
      |                      std::endl
In file included from /usr/include/c++/14/istream:41,
                 from /usr/include/c++/14/sstream:40,
                 from /usr/include/c++/14/complex:45,
                 from /usr/include/c++/14/ccomplex:39,
                 from /usr/include/x86_64-linux-gnu/c++/14/bits/stdc++.h:127:
/usr/include/c++/14/ostream:744:5: note: 'std::endl' declared here
  744 |     endl(basic_ostream<_CharT, _Traits>& __os)
      |     ^~~~
Language: C

#include <stdio.h>
#include <math.h>
#define PI 3.14159265358979323846264338327950L  // 円周率

using namespace std;

int main()
{
    // 時針と分針の値から角度を計算する
    //3 4 9 0
    //3 4 10 40

    long double A, B, H, M;
    cin >> A >> B >> H >> M;

    long double hAngle, mAngle, angle;

    hAngle = ((long double)H * 30.0)+((long double)M * 0.5);
    mAngle = (long double)M * 6.0;

    if ((long double)M/5 > H) {
        angle = (long double)mAngle - (long double)hAngle;
    }
    else {
        angle = (long double)hAngle - (long double)mAngle;
    }
    
    if (angle > 180.0) {
        angle = 360.0 - (long double)angle;
    }

    //cout << angle << "\n";

    // 余弦定理で頂点の長さを計算する
    // a2 = b2 + c2−2bccosA

    long double radian = angle * PI / 180.0;
    long double rad = PI * 2 * ((long double)H / 12.0 + ((long double)M / 60.0) / 12.0 - (long double)M / 60.0);
    long double output = pow(A, 2.0) + pow(B,2.0) - (2.0 * A * B * cos(radian));
    long double rsq = (long double)(A * A + B * B) - (long double)(2 * A * B) * cosl(rad);

    cout << sqrtl(rsq) << endl;

    return 0;
}


Compiler output:
main.c:5:1: error: unknown type name 'using'
    5 | using namespace std;
      | ^~~~~
main.c:5:17: error: expected '=', ',', ';', 'asm' or '__attribute__' before 'std'
    5 | using namespace std;
      |                 ^~~
main.c: In function 'main':
main.c:14:5: error: 'cin' undeclared (first use in this function); did you mean 'sin'?
   14 |     cin >> A >> B >> H >> M;
      |     ^~~
      |     sin
main.c:14:5: note: each undeclared identifier is reported only once for each function it appears in
main.c:42:5: error: 'cout' undeclared (first use in this function)
   42 |     cout << sqrtl(rsq) << endl;
      |     ^~~~
main.c:42:27: error: 'endl' undeclared (first use in this function)
   42 |     cout << sqrtl(rsq) << endl;
      |                           ^~~~
Language: C

#include <stdio.h>
#include <iostream>
#include <math.h>
//#include <bits/stdc++.h>
#define PI 3.14159265358979323846264338327950L  // 円周率

using namespace std;

int main()
{
    // 時針と分針の値から角度を計算する
    //3 4 9 0
    //3 4 10 40

    long double A, B, H, M;
    cin >> A >> B >> H >> M;

    long double hAngle, mAngle, angle;

    hAngle = ((long double)H * 30.0)+((long double)M * 0.5);
    mAngle = (long double)M * 6.0;

    if ((long double)M/5 > H) {
        angle = (long double)mAngle - (long double)hAngle;
    }
    else {
        angle = (long double)hAngle - (long double)mAngle;
    }
    
    if (angle > 180.0) {
        angle = 360.0 - (long double)angle;
    }

    //cout << angle << "\n";

    // 余弦定理で頂点の長さを計算する
    // a2 = b2 + c2−2bccosA

    long double radian = angle * PI / 180.0;
    long double rad = PI * 2 * ((long double)H / 12.0 + ((long double)M / 60.0) / 12.0 - (long double)M / 60.0);
    long double output = pow(A, 2.0) + pow(B,2.0) - (2.0 * A * B * cos(radian));
    long double rsq = (long double)(A * A + B * B) - (long double)(2 * A * B) * cosl(rad);

    cout << sqrtl(rsq) << endl;

    return 0;
}

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