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

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

using namespace std;

int main()
{
    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;
    }

    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 * A) * cosl(rad);

    cout << sqrtl(rsq) << endl;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:10:5: error: 'cin' was not declared in this scope
   10 |     cin >> A >> B >> H >> M;
      |     ^~~
a.cc:3:1: note: 'std::cin' is defined in header '<iostream>'; this is probably fixable by adding '#include <iostream>'
    2 | #include <math.h>
  +++ |+#include <iostream>
    3 | #define PI 3.14159265358979323846264338327950L  // 円周率
a.cc:33:5: error: 'cout' was not declared in this scope
   33 |     cout << sqrtl(rsq) << endl;
      |     ^~~~
a.cc:33:5: note: 'std::cout' is defined in header '<iostream>'; this is probably fixable by adding '#include <iostream>'
a.cc:33:27: error: 'endl' was not declared in this scope
   33 |     cout << sqrtl(rsq) << endl;
      |                           ^~~~
a.cc:3:1: note: 'std::endl' is defined in header '<ostream>'; this is probably fixable by adding '#include <ostream>'
    2 | #include <math.h>
  +++ |+#include <ostream>
    3 | #define PI 3.14159265358979323846264338327950L  // 円周率
Language: C++

#include <iostream>
#include <cstdio>
#include <cstdlib>
#include <cmath>
#include <queue>
#include <algorithm>
#include <vector>
#include <cstring>
#include <stack>
#include <cctype>
#include <utility>
#include <map>
#include <string>
#include <climits>
#include <set>
#include <sstream>
#include <utility>
#include <ctime>
#include <cassert>
#include <fstream>
using namespace std;
typedef long long LL;
#define MS(A) memset(A, 0, sizeof(A))
#define MSV(A,a) memset(A, a, sizeof(A))
#define MAX(a,b) ((a >= b) ? (a) : (b))
#define MIN(a,b) ((a >= b) ? (b) : (a))
#define ABS(a) (((a) > 0) ? (a) : (-a))
#define MP make_pair
#define PB push_back
#define getcx getchar_unlocked
#define INF (int(1e9))
#define INFL (LL(1e18))
#define EPS 1e-12
#define chkbit(s, b) (s & (1<<b))
#define setbit(s, b) (s |= (1<<b))
#define clrbit(s, b) (s &= ~(1<<b))

double pi = std::acos(-1);

int main() {


	int a,b,h,m;
	cin>>a>>b>>h>>m;

	double hangle = 0.5 * (h * 60 + m);  
    double mangle = 6 * m;  
    double angle = ABS((hangle - mangle));  

	angle = min(360 - angle, angle);  

	double cosine = 0;
	double ans = 0.0;

	if(h == 0 && m == 0) {
		printf("%.11f\n",ans);
		return 0 ;
	}

	if(angle != 90) {
		cosine = cos(angle*pi/180);
	}

 	double l = a*a + b*b - 2*a*b*cosine;
 	double ans = sqrt(l);
 	printf("%0.11lf\n", ans);

 	return 0;

}

Compiler output:
a.cc: In function 'int main()':
a.cc:65:16: error: redeclaration of 'double ans'
   65 |         double ans = sqrt(l);
      |                ^~~
a.cc:53:16: note: 'double ans' previously declared here
   53 |         double ans = 0.0;
      |                ^~~
Language: C++

#include <stdio.h>
2 #include <math.h>
3
4 #define PI 3.14159265358979323846264338327950L
5
6 int main(void) {
7 int a, b, h, m;
8 scanf("%d%d%d%d", &a, &b, &h, &m);
9
10 long double rad = PI * 2 * (
11 (long double)h / 12.0 + ((long double)m / 60.0) / 12.0 - (long
double)m / 60.0);
12
13 long double rsq = (long double)(a * a + b * b) - (long double)(2 * a *
b) * cosl(rad);
14
15 printf("%20.20Lf\n", sqrtl(rsq));
16
17 return 0;
18 }

Compiler output:
a.cc:2:3: error: stray '#' in program
    2 | 2 #include <math.h>
      |   ^
a.cc:4:3: error: stray '#' in program
    4 | 4 #define PI 3.14159265358979323846264338327950L
      |   ^
a.cc:2:1: error: expected unqualified-id before numeric constant
    2 | 2 #include <math.h>
      | ^
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

    int A,B,H,M;
    cin >> A >> B >> H >> M;

    double hAngle, mAngle, angle;

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

    if (M/5 > H) {
        angle = mAngle - hAngle;
    }
    else {
        angle = hAngle - mAngle;
    }
    
    if (angle > 180) {
        angle = 360.0 - angle;
    }

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

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

    long float radian;
    radian = angle * PI / 180.0;

    //cout << radian << "\n" << cos(radian) << "\n" << acos(0) << "\n";

    long float output;

    output = sqrt((A*A + B*B) - (2.0 * A * B * cos(radian)));

    cout << output;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:39:5: error: 'long' specified with 'float'
   39 |     long float radian;
      |     ^~~~
a.cc:44:5: error: 'long' specified with 'float'
   44 |     long float output;
      |     ^~~~
Language: C++

#include <algorithm>
#include <cstring>
#include <iostream>
#include <vector>
#include <cmath>
#include <math.h>
#include <stdio.h>
#include <iomanip>
#include <stack>
#include <queue>
#include <set>
#include <map>
#include <string>
#include <functional>
#define rep(i,n) for (int i = 0; i < (n); ++i)

using namespace std;
const int MOD = 1000000007;
#define PI 3.14159265358979323846264338327950L


typedef long long int ll; 
typedef pair<int,int> Pii;
typedef pair<ll,ll> Pll;

void floatOutPutSetup(){
    cout << fixed;
    cout << setprecision(20);
}

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

    long double km,kh;
    km = (long double)m*60;
    kh = (long double)(h%12)*30 + (long double)m/2;
    long double kakudo = min(360-abs(km-kh),abs(km-kh));
    long double radian = kakudo*(PI/180);
    ans = a*a - 2*a*b*cosl(radian) + b*b;
    cout<<sqrtl(ans);
    return 0;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:39:25: error: invalid operands of types 'long double' and 'int' to binary 'operator%'
   39 |     kh = (long double)(h%12)*30 + (long double)m/2;
      |                        ~^~~
      |                        | |
      |                        | int
      |                        long double
Language: C++

#include<bits/stdc++.h>
using namespace std;
 
void __print(int x) {cout << x;}
void __print(long x) {cout << x;}
void __print(long long x) {cout << x;}
void __print(unsigned x) {cout << x;}
void __print(unsigned long x) {cout << x;}
void __print(unsigned long long x) {cout << x;}
void __print(float x) {cout << x;}
void __print(double x) {cout << x;}
void __print(long double x) {cout << x;}
void __print(char x) {cout << '\'' << x << '\'';}
void __print(const char *x) {cout << '\"' << x << '\"';}
void __print(const string &x) {cout << '\"' << x << '\"';}
void __print(bool x) {cout << (x ? "true" : "false");}

template<typename T, typename V>
void __print(const pair<T, V> &x) {cout << '{'; __print(x.first); cout << ','; __print(x.second); cout << '}';}
template<typename T>
void __print(const T &x) {int f = 0; cout << '{'; for (auto &i: x) cout << (f++ ? "," : ""), __print(i); cout << "}";}
void _print() {cout << "]\n";}
template <typename T, typename... V>
void _print(T t, V... v) {__print(t); if (sizeof...(v)) cout << ", "; _print(v...);}
#ifndef ONLINE_JUDGE
#define debug(x...) cout << "[" << #x << "] = ["; _print(x)
#else
#define debug(x...)
#endif
 
#define fi first
#define se second
#define FIO {ios::sync_with_stdio(0);cin.tie(nullptr);cout.tie(nullptr);}
#define pb push_back
#define all(x) (x).begin(), (x).end()
#define rall(x) (x).rbegin(), (x).rend()
#define forn(i, n) for (int i = 0; i < (int)(n); ++i)
#define for1(i, n) for (int i = 1; i <= (int)(n); ++i)
#define ford(i, n) for (int i = (int)(n) - 1; i >= 0; --i)
#define all(x) (x).begin(), (x).end()
#define pow10(n) stoll("1"+string(n,'0'))
//fill(all(arr),1)
//if(map.count(key)){}
//bitset<20>(n);
//int mini=min({a,b,c,d,e});
 
typedef pair<int, int> pii;
typedef vector<int> vi;
typedef vector<pii> vpi;
typedef vector<vi> vvi;
typedef long long ll;
typedef vector<ll> vll;
typedef vector<vll> vvll;
typedef long double ld;
int angle(int h,int m)
{
	if(h==12)h=0;
	if(m==60)m=0;
	double hour=0.5*(h*60+m);
	double min=6*m;
	int angle=abs(hour-min);
	angle=min(angle,360-angle);
	return angle;

}
const ld pi = 2 * acos(0);

int32_t main(){
	FIO
	int a,b,h,m;
	cin>>a>>b>>h>>m;
	long double deg=angle(h,m);
	//cout<<deg;
	deg*=pi/180.0;
	double ans=a*a+b*b-2*a*b*cos(deg);
	ans=sqrt(ans);
	cout<<fixed<<setprecision(20)<<ans;

	
	
	return 0;
}

Compiler output:
a.cc: In function 'int angle(int, int)':
a.cc:62:18: error: 'min' cannot be used as a function
   62 |         angle=min(angle,360-angle);
      |               ~~~^~~~~~~~~~~~~~~~~
Language: C

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

int main(void)
{
    double a, b, h, m, C;
    scanf("%lf %lf %lf %lf", &a, &b, &h, &m);
    C=sqrt((a * a)+(b * b)-(2 * a * b * cos((M_PI * ((5.5 * m)-(30*h)))/180)));
    printf("%lf" , C);
    return 0;
}

Compiler output:
/usr/bin/ld: /tmp/cccaD3qk.o: in function `main':
main.c:(.text+0xc3): undefined reference to `cos'
/usr/bin/ld: main.c:(.text+0xe0): undefined reference to `sqrt'
collect2: error: ld returned 1 exit status
Language: Java

public class Main{
    public static void main(String[] args){
        final Scanner sc=new Scanner(System.in);

        final double A = Integer.parseInt(sc.next());
        final double B = Integer.parseInt(sc.next());
        final double H = Integer.parseInt(sc.next());
        final double M = Integer.parseInt(sc.next());

        final double parseH = H * 30d + (30d * (M / 60d));
        final double parseM = M * 6d;

        double ang = Math.abs(parseH - parseM);
        if (ang > 180d) {
            ang -= 180d;
        }

        final double ans = Math.sqrt(Math.pow(A, 2) + Math.pow(B, 2) -2d * A * B * Math.cos(Math.toRadians(ang)));
        System.out.print(ans);
    }
}

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

#include <bits/stdc++.h>
using namespace std;
int main ()
{
    int a, b, c, d;
    cin >> a >> b >> c >> d;
    double aa;
    if (d%2==1){
        aa=(c*60+d)/2+0.5;
    }
    else{
        aa=(c*60+d)/2;
    }
    double ww=d*6;
    double t=min(abs(aa-ww), 360-abs(aa-ww));
    double ca=\cos(t*3.1415926535897932*2/360);
    double ou=sqrt(a*a+b*b-2*a*b*ca);
    cout << fixed << setprecision(17) << ou << endl;
}


Compiler output:
a.cc:16:15: error: stray '\' in program
   16 |     double ca=\cos(t*3.1415926535897932*2/360);
      |               ^
Language: C

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

int main(void)
{
    int a, b, h, m;
    double C;
    scanf(“%d %d %d %d” ,&a, &b, &h, &m);
    C=sqrt((a^2)+(b^2)-(2 * a * b * Cos((M_PI * ((5.5 * m)-(30 * h)))/180)));
    printf(“%f” , C);
    return 0;
}

Compiler output:
main.c: In function 'main':
main.c:8:11: error: stray '\342' in program
    8 |     scanf(<U+201C>%d %d %d %d<U+201D> ,&a, &b, &h, &m);
      |           ^~~~~~~~
main.c:8:12: error: expected expression before '%' token
    8 |     scanf(“%d %d %d %d” ,&a, &b, &h, &m);
      |            ^
main.c:8:23: error: stray '\342' in program
    8 |     scanf(<U+201C>%d %d %d %d<U+201D> ,&a, &b, &h, &m);
      |                              ^~~~~~~~
main.c:9:37: error: implicit declaration of function 'Cos'; did you mean 'cos'? [-Wimplicit-function-declaration]
    9 |     C=sqrt((a^2)+(b^2)-(2 * a * b * Cos((M_PI * ((5.5 * m)-(30 * h)))/180)));
      |                                     ^~~
      |                                     cos
main.c:10:12: error: stray '\342' in program
   10 |     printf(<U+201C>%f<U+201D> , C);
      |            ^~~~~~~~
main.c:10:13: error: expected expression before '%' token
   10 |     printf(“%f” , C);
      |             ^
main.c:10:15: error: stray '\342' in program
   10 |     printf(<U+201C>%f<U+201D> , C);
      |                      ^~~~~~~~
Language: C

#include<stdio.h>
#include<math.h>
#define PI3.14159265358979323846264338327950L

int main(void) {
  int a,b,h,m;
  scanf("%d%d%d%d", &a, &b, &h, &m);
  
  long double rad = PI* 2 * (
  (long double)h/ 12.0 + ((long double)m/ 60.0) / 12.0 - (longdouble)m/ 60.0);
  long double rsq= (long double)(a*a+b*b) - (long double)(2 *a*b) *cosl(rad);
  
  printf("%20.20Lf\n",sqrtl(rsq));
  
  return 0;
}

Compiler output:
main.c:3:9: warning: ISO C99 requires whitespace after the macro name
    3 | #define PI3.14159265358979323846264338327950L
      |         ^~~
main.c: In function 'main':
main.c:9:21: error: 'PI' undeclared (first use in this function); did you mean 'PI3'?
    9 |   long double rad = PI* 2 * (
      |                     ^~
      |                     PI3
main.c:9:21: note: each undeclared identifier is reported only once for each function it appears in
main.c:10:59: error: 'longdouble' undeclared (first use in this function); did you mean 'long double'?
   10 |   (long double)h/ 12.0 + ((long double)m/ 60.0) / 12.0 - (longdouble)m/ 60.0);
      |                                                           ^~~~~~~~~~
      |                                                           long double
main.c:10:70: error: expected ')' before 'm'
   10 |   (long double)h/ 12.0 + ((long double)m/ 60.0) / 12.0 - (longdouble)m/ 60.0);
      |                                                                      ^
      |                                                                      )
main.c:9:29: note: to match this '('
    9 |   long double rad = PI* 2 * (
      |                             ^
Language: C

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

Int main(void)
{
    int a, b, h, m;
    double C;
    scanf(“%d %d %d %d” ,&a, &b, &h, &m);
    C=sqrt((a^2)+(b^2)-(2 *a *b * cos((M_PI * ((5.5 * m)-(30 * h)))/180)));
    printf(“%f” , C);
    return 0;
}

Compiler output:
main.c:4:1: error: unknown type name 'Int'; did you mean 'int'?
    4 | Int main(void)
      | ^~~
      | int
main.c: In function 'main':
main.c:8:11: error: stray '\342' in program
    8 |     scanf(<U+201C>%d %d %d %d<U+201D> ,&a, &b, &h, &m);
      |           ^~~~~~~~
main.c:8:12: error: expected expression before '%' token
    8 |     scanf(“%d %d %d %d” ,&a, &b, &h, &m);
      |            ^
main.c:8:23: error: stray '\342' in program
    8 |     scanf(<U+201C>%d %d %d %d<U+201D> ,&a, &b, &h, &m);
      |                              ^~~~~~~~
main.c:10:12: error: stray '\342' in program
   10 |     printf(<U+201C>%f<U+201D> , C);
      |            ^~~~~~~~
main.c:10:13: error: expected expression before '%' token
   10 |     printf(“%f” , C);
      |             ^
main.c:10:15: error: stray '\342' in program
   10 |     printf(<U+201C>%f<U+201D> , C);
      |                      ^~~~~~~~
Language: C

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

Int main(void)
{
    int a, b, h, m;
    double C;
    scanf(“%d %d %d %d” ,&a, &b, &h, &m);
    C=sqrt((a^2)+(b^2)-(2 *a *b * Cos((M_PI * ((5.5 * m)-(30 * h)))/180)));
    printf(“C = %f¥n” , C);
    return 0;
}

Compiler output:
main.c:4:1: error: unknown type name 'Int'; did you mean 'int'?
    4 | Int main(void)
      | ^~~
      | int
main.c: In function 'main':
main.c:8:11: error: stray '\342' in program
    8 |     scanf(<U+201C>%d %d %d %d<U+201D> ,&a, &b, &h, &m);
      |           ^~~~~~~~
main.c:8:12: error: expected expression before '%' token
    8 |     scanf(“%d %d %d %d” ,&a, &b, &h, &m);
      |            ^
main.c:8:23: error: stray '\342' in program
    8 |     scanf(<U+201C>%d %d %d %d<U+201D> ,&a, &b, &h, &m);
      |                              ^~~~~~~~
main.c:9:35: error: implicit declaration of function 'Cos'; did you mean 'cos'? [-Wimplicit-function-declaration]
    9 |     C=sqrt((a^2)+(b^2)-(2 *a *b * Cos((M_PI * ((5.5 * m)-(30 * h)))/180)));
      |                                   ^~~
      |                                   cos
main.c:10:12: error: stray '\342' in program
   10 |     printf(<U+201C>C = %f<U+00A5>n<U+201D> , C);
      |            ^~~~~~~~
main.c:10:17: error: expected expression before '%' token
   10 |     printf(“C = %f¥n” , C);
      |                 ^
main.c:10:19: error: stray '\302' in program
   10 |     printf(<U+201C>C = %f<U+00A5>n<U+201D> , C);
      |                          ^~~~~~~~
main.c:10:21: error: stray '\342' in program
   10 |     printf(<U+201C>C = %f<U+00A5>n<U+201D> , C);
      |                                   ^~~~~~~~
Language: C++

#include <bits/stdc++.h>
#include <cmath>
#include <iostream>

using namespace std;
int main(){
  static const double pi =3.14159265358979323846;
  int A,B,H,M;
  float x;
  cin>>A>>B>>H>>M;
  
  x=A*A+B*B-2*A*B*cos(abs(H*pi/6-M*pi/30));
  std::cout<<std::seprecision(12)<<std::pow(x,0.5)<<std::endl;
}


Compiler output:
a.cc: In function 'int main()':
a.cc:13:19: error: 'seprecision' is not a member of 'std'; did you mean 'setprecision'?
   13 |   std::cout<<std::seprecision(12)<<std::pow(x,0.5)<<std::endl;
      |                   ^~~~~~~~~~~
      |                   setprecision
Language: C

#include<stdio.h>
#include<stdlib.h>
#include<string.h>
#include<math.h>
 
int main(){
 
  int a,b;
  int h,m;
  scanf("%d%d%d%d",&a, &b, &h, &m);
 
  double angle = abs( 30*h + 0.5*m - m * 6 );
  double rad;
    //rad = (angle /180)* M_PI;
 
  //printf("%.10f ",h);
  double ans = sqrt(a*a + b*b -2*a*b*cos(angle * (M_PI=%.10f / 180)));
  printf("%.11f",ans);
 
  return 0;
}

Compiler output:
main.c: In function 'main':
main.c:17:56: error: expected expression before '%' token
   17 |   double ans = sqrt(a*a + b*b -2*a*b*cos(angle * (M_PI=%.10f / 180)));
      |                                                        ^
Language: C++

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

int main() {
   double A, B, H, M;
   cin >> A >> B >> H >> M;
   double pi = 3.1415926535897932384626433832795028841971;
   double X = cos(double((M　* 11 / 360 - H / 6)) * pi);
   double Y = cos(double((H / 6 - M * 11 / 360)) * pi);
  if(double(M / 30 - H / 6) >= 0){
   cout << double(sqrt(pow(A, 2) + pow(B, 2) - 2 * A * B * X)) << endl;
  }
  else{
   cout << double(sqrt(pow(A, 2) + pow(B, 2) - 2 * A * B * Y)) << endl;
  }
  return 0; 
}


Compiler output:
a.cc:8:27: error: extended character 　 is not valid in an identifier
    8 |    double X = cos(double((M　* 11 / 360 - H / 6)) * pi);
      |                           ^
a.cc: In function 'int main()':
a.cc:8:27: error: 'M\U00003000' was not declared in this scope
    8 |    double X = cos(double((M　* 11 / 360 - H / 6)) * pi);
      |                           ^~~
Language: C++

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

#define fastio 			ios::sync_with_stdio(0);	cin.tie(0); cout.tie(0);  cout<<fixed;  cout<<setprecision(12);
#define randomINT 		mt19937 rnd(chrono::steady_clock::now().time_since_epoch().count());
#define	newl 			cout<<"\n"
#define DISP(as)		for(auto it : as) cout<<it<<" ";newl;
#define DISP1(as)		for(auto it : as) cout<<it.f<<" "<<it.s<<") ";newl;
#define all(x)         	(x).begin(),(x).end()
#define mset(x,val)    	memset(x,val,sizeof(x))
#define newl           	cout<<"\n"
#define pb             	push_back
#define mp             	make_pair
#define f 				first
#define s 				second
#define dline          cerr<<"///REACHED///\n";
#define deb1(x)        cerr<<#x<<" = "<<x<<'\n';
#define deb2(x,y)      cerr<<'['<<#x<<','<<#y<<"] = "<<'['<<x<<','<<y<<']'<<'\n';
#define deb3(x,y,z)    cerr<<'['<<#x<<','<<#y<<','<<#z<<"] = "<<'['<<x<<','<<y<<','<<z<<']'<<'\n';

typedef long long 				ll;
typedef long double 			ld;
typedef vector<ll> 				vll;
typedef pair<ll , ll> 			pll;
typedef pair<ld, ld> 			pld;
typedef unordered_map<ll, ll> 	um;
typedef vector<pll> 			vpll;

const ll 	MAX5 	= 	1e+5 + 7;
const ll 	MAX7 	= 	1e+7 + 7;
const ll 	MAXN 	= 	MAX7;
const ll   	INF   	=  	0x7f7f7f7f7f7f7f7f;
const int  	INFi 	=  	0x7f7f7f7f;
const ll 	MOD		=  	1e+9 + 7;

// <------------- Declare Variables Here ------------> //

ll T = 1;
ll n0, n1, n2, x, k, n;
ld a,b,h,m;
string s;
// <------------- Implement Functions Here ----------> //

// <------------- Start of main() -------------------> //

void MAIN() {
	cin>>a>>b>>h>>m;
	ld x = m/5;

	h-=min(h,x);
	x-=min(h,x);

	if(h==0) swap(h,x);

	ld angle = (h*6)*(3.141592654)/180;

	ld c = sqrt(a*a + b*b - 2*a*b*cos(angle))
	cout<<c;
}

int main() {
	cin >> T;
	while (T--) {
		MAIN();
	}
	return 0;
}


Compiler output:
a.cc: In function 'void MAIN()':
a.cc:58:9: error: expected ',' or ';' before 'cout'
   58 |         cout<<c;
      |         ^~~~
Language: C

#include<stdio.h>
#include<stdlib.h>
#include<string.h>
#include<math.h>
 
int main(){
 
  int a,b;
  int h,m;
  scanf("%d%d%d%d",&a, &b, &h, &m);
 
  double angle = abs( 30*h + 0.5*m - m * 6 );
  double rad;
    //rad = (angle /180)* M_PI;
 
  //printf("%.10f ",h);
  double ans = sqrt(a*a + b*b -2*a*b*cos(angle / (180* M_PI));
  printf("%.11f",ans);
 
  return 0;
}

Compiler output:
main.c: In function 'main':
main.c:17:62: error: expected ')' before ';' token
   17 |   double ans = sqrt(a*a + b*b -2*a*b*cos(angle / (180* M_PI));
      |                    ~                                         ^
      |                                                              )
main.c:21:1: error: expected ',' or ';' before '}' token
   21 | }
      | ^
main.c:21:1: error: expected declaration or statement at end of input
Language: C++

// myfirstatcoder.cpp : アプリケーションのエントリ ポイントを定義します。

#include "bits/stdc++.h"
#define rep(i,cc,n) for(int i=cc;i<(n);++i)
#define drep(i,cc,n) for(int i=cc;i>(n);--i)
#define llrep(i,cc,n) for(long long i=cc;i<(n);++i)
using namespace std;
using ll = long long;

int main()
{
	int a,b,h,m;
	cin >> a >> b >> h >> m;
	long double rad,ans;
	h = h * 30;
	m = m * 6;
	rad = h + long double(m / 12) - m;
	if (rad < 0)
		rad = -rad;
	if (rad >= 180)
		rad -= 180;
	rad = (rad / 180 )* M_PI;
	ans = a * a + b * b - 2 * a * b * cosl(rad);
	ans = sqrtl(ans);
	//ans = pow(ans, 0.5);
	cout << fixed << setprecision(19) << ans << endl;
}

/*
ライブラリ
・std
::::sqrt(); sqrtl();
::::cos(); cosl();
・string
::::str.at(0)
::::str.length()
::::str.pop_back();
::::str.erase(str.begin()+2, str.end());  //要素3から終わりまで削除
・vector<int>
::::vector<int> a(n,-1);
::::vector<int> s;  s.push_back()
::::vector<vector<int>> A(N,vector<int>(M));  A[i][j] = i;
・map<string,int>
・sort(a.begin(),a.end());

関数
・rep_2(i,0,1<<n) … ２のN乗ループ
・while(node[v] == -1) … ノードの探索と生成
・gcd(int, int) … 最大公約数 int
・find_string(str, str) … 文字列検索 bool
*/


Compiler output:
a.cc: In function 'int main()':
a.cc:17:19: error: expected primary-expression before 'long'
   17 |         rad = h + long double(m / 12) - m;
      |                   ^~~~
Language: C++

#include <bits/stdc++.h>
#define rep(i,n) for (int i = 0; i < (n); ++i)
using namespace std;
#define pi 3.14159265358979323846264338

int main() {
    double a, b, h, m, x;
    cin>>a>>b>>h>>m;
    double c = 11.0/360.0*(60*h+m)*pi;
    x = sqrt(a*a+b*b-2*a*b*cos(c);
    cout << fixed << setprecision(20) << x << endl;
    return 0;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:10:34: error: expected ')' before ';' token
   10 |     x = sqrt(a*a+b*b-2*a*b*cos(c);
      |             ~                    ^
      |                                  )
Language: C++

#include <iostream>
#include <cmath>
#define PI 3.14159265358979323846264338327950L
using namespace std;

int main(){
  int A;
  int B;
  int H;
  int M;
  long double C,f;
  cin >> A >> B >> H >> M;
  
  f = 2.0* PI*((long double)H/12 + ((long double)M/60)/12) - (long double)M/60);
  
  C = (long double)(A*A + B*B) - (long double)(2.0*A*B)*cosl(f);
  
  printf("%20.20Lf\n", sqrtl(C));

}


Compiler output:
a.cc: In function 'int main()':
a.cc:14:79: error: expected ';' before ')' token
   14 |   f = 2.0* PI*((long double)H/12 + ((long double)M/60)/12) - (long double)M/60);
      |                                                                               ^
      |                                                                               ;
Language: C++

int main() {
  
  int A,B,H,M;
  cin >> A >> B >> H >> M;
  int Hdo;
  int Mdo;
  Hdo = 30*H + 0.5*M;
  Mdo = 6*M;
  int kakudo;
  double C;
  kakudo = Hdo - Mdo;
  double rajian = kakudo /180.0 * M_PI;
  C = sqrt(A*A + B*B -2*A*B*cos(rajian));
  cout << fixed << setprecision(16);
  cout << C << endl;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:4:3: error: 'cin' was not declared in this scope
    4 |   cin >> A >> B >> H >> M;
      |   ^~~
a.cc:12:35: error: 'M_PI' was not declared in this scope
   12 |   double rajian = kakudo /180.0 * M_PI;
      |                                   ^~~~
a.cc:13:29: error: 'cos' was not declared in this scope; did you mean 'const'?
   13 |   C = sqrt(A*A + B*B -2*A*B*cos(rajian));
      |                             ^~~
      |                             const
a.cc:13:7: error: 'sqrt' was not declared in this scope
   13 |   C = sqrt(A*A + B*B -2*A*B*cos(rajian));
      |       ^~~~
a.cc:14:3: error: 'cout' was not declared in this scope
   14 |   cout << fixed << setprecision(16);
      |   ^~~~
a.cc:14:11: error: 'fixed' was not declared in this scope
   14 |   cout << fixed << setprecision(16);
      |           ^~~~~
a.cc:14:20: error: 'setprecision' was not declared in this scope
   14 |   cout << fixed << setprecision(16);
      |                    ^~~~~~~~~~~~
a.cc:15:16: error: 'endl' was not declared in this scope
   15 |   cout << C << endl;
      |                ^~~~
Language: C++

1>------ ビルド開始: プロジェクト: myfirstatcoder, 構成: Debug Win32 ------
1>myfirstatcoder.cpp
1>myfirstatcoder.vcxproj -> C:\Users\toitenu\source\repos\myfirstatcoder\Debug\myfirstatcoder.exe
========== ビルド: 1 正常終了、0 失敗、0 更新不要、0 スキップ ==========


Compiler output:
a.cc:3:31: error: stray '\' in program
    3 | 1>myfirstatcoder.vcxproj -> C:\Users\toitenu\source\repos\myfirstatcoder\Debug\myfirstatcoder.exe
      |                               ^
a.cc:3:37: error: stray '\' in program
    3 | 1>myfirstatcoder.vcxproj -> C:\Users\toitenu\source\repos\myfirstatcoder\Debug\myfirstatcoder.exe
      |                                     ^
a.cc:3:45: error: stray '\' in program
    3 | 1>myfirstatcoder.vcxproj -> C:\Users\toitenu\source\repos\myfirstatcoder\Debug\myfirstatcoder.exe
      |                                             ^
a.cc:3:52: error: stray '\' in program
    3 | 1>myfirstatcoder.vcxproj -> C:\Users\toitenu\source\repos\myfirstatcoder\Debug\myfirstatcoder.exe
      |                                                    ^
a.cc:3:58: error: stray '\' in program
    3 | 1>myfirstatcoder.vcxproj -> C:\Users\toitenu\source\repos\myfirstatcoder\Debug\myfirstatcoder.exe
      |                                                          ^
a.cc:3:73: error: stray '\' in program
    3 | 1>myfirstatcoder.vcxproj -> C:\Users\toitenu\source\repos\myfirstatcoder\Debug\myfirstatcoder.exe
      |                                                                         ^
a.cc:3:79: error: stray '\' in program
    3 | 1>myfirstatcoder.vcxproj -> C:\Users\toitenu\source\repos\myfirstatcoder\Debug\myfirstatcoder.exe
      |                                                                               ^
a.cc:4:22: error: extended character 、 is not valid in an identifier
    4 | ========== ビルド: 1 正常終了、0 失敗、0 更新不要、0 スキップ ==========
      |                      ^
a.cc:4:34: error: extended character 、 is not valid in an identifier
    4 | ========== ビルド: 1 正常終了、0 失敗、0 更新不要、0 スキップ ==========
      |                                  ^
a.cc:4:42: error: extended character 、 is not valid in an identifier
    4 | ========== ビルド: 1 正常終了、0 失敗、0 更新不要、0 スキップ ==========
      |                                          ^
a.cc:1:1: error: expected unqualified-id before numeric constant
    1 | 1>------ ビルド開始: プロジェクト: myfirstatcoder, 構成: Debug Win32 ------
      | ^
Language: C++

#include <iostream>
#include <cmath>
#define PI 3.14159265358979323846264338327950L
using namespace std;

int main(){
  int A;
  int B;
  int H;
  int M;
  long double C,r1,r2,f;
  cin >> A >> B >> H >> M;
  
  r1 = 360.0/(60.0*60.0*12.0);
  r2 = 360.0/(60.0*60.0);
  
  f = 2.0* PI*((long double)H/12 + ((long double)M/60)/12) - (long double)M/60);
  
  C = (long double)(A*A + B*B) - (long double)(2.0*A*B)*cosl(f);
  
  printf("%20.20Lf\n", sqrtl(C));

}


Compiler output:
a.cc: In function 'int main()':
a.cc:17:79: error: expected ';' before ')' token
   17 |   f = 2.0* PI*((long double)H/12 + ((long double)M/60)/12) - (long double)M/60);
      |                                                                               ^
      |                                                                               ;
Language: C++

#include<bits/stdc++.h>
using namespace std;
#define PI 3.141592653589L

int main(){
  int A,B,H,M;
  cin >> A >> B >> H >> M;
  long double w1 = (PI/30)*((long double)H*60+(long double)M);
  long double w2 = (PI/360)*((long double)H*60+(long double)M);
  long double x;
  x = (long double)A*(long double)A + (long double)B*(long double)B -2*A*B*cos(w1-w2);
  long double y = sqrt(x);
 printf("%20.20%Lf",y)
  return 0;
}




Compiler output:
a.cc: In function 'int main()':
a.cc:13:23: error: expected ';' before 'return'
   13 |  printf("%20.20%Lf",y)
      |                       ^
      |                       ;
   14 |   return 0;
      |   ~~~~~~
Language: C++

#include<bits/stdc++.h>
using namespace std;
#define mem(a,b) memset(a,b,sizeof a) ;
typedef pair<int,int> pii ;
#define vi vector<int>
#define vit vector<int> :: iterator 
#define all(ans) ans.begin(),ans.end()
//#define sz(a) int(a.size())
#define ub upper_bound
#define lb lower_bound
#define create(Name,N,M,val) vector<vector<int> > Name(N,vector<int>(M,val))
#define ull unsigned long long
#define ll long long 
#define db double 
#define ldb long double
#define fl float
#define rep(i,a,b) for(int i=a;i<b;i++)
#define lrep(i,a,b) for(ll i=a;i<b;i++)
//#define all(c) c.begin(),c.end()
#define tr(c,it) for(typeof(c.begin()) it=c.begin();it!=c.end();it++)
#define mpr make_pair
#define pb push_back
#define fr first
#define sn second
#define bpp(x) __builtin_popcountll(x)
const db PI = 3.141592653589793238462643383;
const long long INF = 1e9+7;
int getID(char c)
{
	if(c == ' ') return 0;
	return c - 'a' + 1;
}
void solve()
{
db a,b,h,m; cin>>a>>b>>h>>m;
h=h*5.0 + (m/60)*5.0;
db p =min( abs(h-m) , 60-(abs(h-m)));
p=(p/60)*PI*2.0;
db ans=sqrt(a*a + b*b - 2.0*a*b*cos(p));
cout<<setprecision(15)<<ans;
return;
}
int main()
{
ios_base::sync_with_stdio(0);
	cin.tie(0);
	int t=1;
//	cin>>t;
while(t--)
{
solve();
}
return 0;
}M

Compiler output:
a.cc:54:2: error: 'M' does not name a type
   54 | }M
      |  ^
Language: C++


#include<bits/stdc++.h>
using namespace std;
#define PI 3.141592653589L

int main(){
  int A,B,H,M;
  cin >> A >> B >> H >> M;
  (long double)A;
  (long double)B;
  long double w1 = (PI/30)*((long double)H*60+(long double)M);
  long double w2 = (PI/360)*((long double)H*60+(long double)M);
  long double x;
  x = A*A + B*B -2*A*B*cos(w1-w2);
  long double y = sqrt(x);
 printf("%20.20%lf",y)
  return 0;
}




Compiler output:
a.cc: In function 'int main()':
a.cc:16:23: error: expected ';' before 'return'
   16 |  printf("%20.20%lf",y)
      |                       ^
      |                       ;
   17 |   return 0;
      |   ~~~~~~
Language: C++

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

int main() {
	double A, B, H, M;
	const double PI = acos(-1);
	cin >> A >> B >> H >> M;
	double a = 2 * PI * (H / 12.0 + M / 60.0 / 12.0);
	double b = 2 * PI * M / 60.0;
	double c = sqrt(A * A + B * B - 2 * A * B * cos(a - b));
	cout << c << endl;
	return 0;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:9:27: error: 'acos' was not declared in this scope
    9 |         const double PI = acos(-1);
      |                           ^~~~
a.cc:13:53: error: 'cos' was not declared in this scope
   13 |         double c = sqrt(A * A + B * B - 2 * A * B * cos(a - b));
      |                                                     ^~~
a.cc:13:20: error: 'sqrt' was not declared in this scope
   13 |         double c = sqrt(A * A + B * B - 2 * A * B * cos(a - b));
      |                    ^~~~
Language: C

#include<bits/stdc++.h>
using namespace std;
#define PI 3.141592653589L

int main(){
  int A,B,H,M;
  cin >> A >> B >> H >> M;
  (long double)A;
  (long double)B;
  long double w1 = (PI/30)*((long double)H*60+(long double)M);
  long double w2 = (PI/360)*((long double)H*60+(long double)M);
  long double x;
  x = A*A + B*B -2*A*B*cos(w1-w2);
  long double y = sqrt(x);
 #include<bits/stdc++.h>
using namespace std;
#define PI 3.141592653589

int main(){
  int A,B,H,M;
  cin >> A >> B >> H >> M;
  (long double)A;
  (long double)B;
  long double w1 = (PI/30)*((long double)H*60+(long double)M);
  long double w2 = (PI/360)*((long double)H*60+(long double)M);
  long double x;
  x = A*A + B*B -2*A*B*cos(w1-w2);
  long double y = sqrt(x);
 printf("%20.20%lf",y)
  return 0;
}

  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

√A^2+B^2-2ABcos(｜5H-M｜×6)

Compiler output:
main.c:1:1: error: stray '\342' in program
    1 | <U+221A>A^2+B^2-2ABcos(<U+FF5C>5H-M<U+FF5C><U+00D7>6)
      | ^~~~~~~~
main.c:1:3: error: expected '=', ',', ';', 'asm' or '__attribute__' before '^' token
    1 | √A^2+B^2-2ABcos(｜5H-M｜×6)
      |   ^
main.c:1:10: error: invalid suffix "ABcos" on integer constant
    1 | √A^2+B^2-2ABcos(｜5H-M｜×6)
      |          ^~~~~~
main.c:1:25: error: stray '\303' in program
    1 | <U+221A>A^2+B^2-2ABcos(<U+FF5C>5H-M<U+FF5C><U+00D7>6)
      |                                            ^~~~~~~~
Language: C++

#include<bits/stdc++.h>
using namespace std;
int main(){
  long int a,b,h,m;
  double pi = acos(-1);
  cin>>a>>b>>h>>m
  int ang = abs(h*30-m*6);
  if(ang>180)
    ang -= 180;
  cout<<sqrt(a*a + b*b - 2*a*b*cos(ang * pi / 180.0));
  return 0;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:6:18: error: expected ';' before 'int'
    6 |   cin>>a>>b>>h>>m
      |                  ^
      |                  ;
    7 |   int ang = abs(h*30-m*6);
      |   ~~~             
a.cc:8:6: error: 'ang' was not declared in this scope
    8 |   if(ang>180)
      |      ^~~
a.cc:10:36: error: 'ang' was not declared in this scope
   10 |   cout<<sqrt(a*a + b*b - 2*a*b*cos(ang * pi / 180.0));
      |                                    ^~~
Language: C++

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

int main(){
  cout << fixed << setprecision(15) ;
  
   int A , B , H , M ;
  cin >> A >> B >> H >> M ;
double sita1 = 0;
 double sita2 =0;
  sita1 = H*0.5;
  sita2 = M*6%360;
  const double PI=3.14159265358979323846;
  double sita = abs(sita1-sita2);
 double y  = cos(PI / 180 * sita);
  cout << double(sqrt(A*A+B*B-2*A*B*y) << endl;
  
}


Compiler output:
a.cc: In function 'int main()':
a.cc:17:40: error: invalid operands of types 'double' and '<unresolved overloaded function type>' to binary 'operator<<'
   17 |   cout << double(sqrt(A*A+B*B-2*A*B*y) << endl;
      |                  ~~~~~~~~~~~~~~~~~~~~~~^~~~~~~
Language: C++

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

int main(){
  int A;
  int B;
  int H;
  int M;
  long double C,r1,r2,f;
  cin >> A >> B >> H >> M;
  
  r1 = 360/(60*60*12);
  r2 = 360/(60*60);
  
  f = (H*60*60)*r1 + (M*60)*r1 - (M*60)*r2;
  
  C = (long couble)A*A + (long double)B*B - (long double)2*A*B*cos(f);
  
  cout << C << endl;
}


Compiler output:
a.cc: In function 'int main()':
a.cc:18:8: error: expected primary-expression before 'long'
   18 |   C = (long couble)A*A + (long double)B*B - (long double)2*A*B*cos(f);
      |        ^~~~
a.cc:18:8: error: expected ')' before 'long'
   18 |   C = (long couble)A*A + (long double)B*B - (long double)2*A*B*cos(f);
      |       ~^~~~
      |        )
Language: C++

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

int main(){
  cout << fixed << setprecision(15) ;
  
   int A , B , H , M ;
  cin >> A >> B >> H >> M ;
long double sita1 = 0;
 long double sita2 =0;
  sita1 = H*0.5;
  sita2 = M*6%360;
  const long long double PI=3.14159265358979323846;
 long double sita = abs(sita1-sita2);
long double y  = cos(PI / 180 * sita);
  cout << long double( pow(A*A+B*B-2*A*B*y,0.5)) << endl;
  
}


Compiler output:
a.cc: In function 'int main()':
a.cc:14:14: error: 'long long' specified with 'double'
   14 |   const long long double PI=3.14159265358979323846;
      |              ^~~~
a.cc:17:11: error: expected primary-expression before 'long'
   17 |   cout << long double( pow(A*A+B*B-2*A*B*y,0.5)) << endl;
      |           ^~~~
Language: C++

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

int main(){
  cout << fixed << setprecision(15) ;
  
   int A , B , H , M ;
  cin >> A >> B >> H >> M ;
long long double sita1 = 0;
 long long double sita2 =0;
  sita1 = H*0.5;
  sita2 = M*6%360;
  const long long double PI=3.14159265358979323846;
 long long double sita = abs(sita1-sita2);
 long long double y  = cos(PI / 180 * sita);
  cout <<long long double( pow(A*A+B*B-2*A*B*y,0.5)) << endl;
  
}


Compiler output:
a.cc: In function 'int main()':
a.cc:10:6: error: 'long long' specified with 'double'
   10 | long long double sita1 = 0;
      |      ^~~~
a.cc:11:7: error: 'long long' specified with 'double'
   11 |  long long double sita2 =0;
      |       ^~~~
a.cc:14:14: error: 'long long' specified with 'double'
   14 |   const long long double PI=3.14159265358979323846;
      |              ^~~~
a.cc:15:7: error: 'long long' specified with 'double'
   15 |  long long double sita = abs(sita1-sita2);
      |       ^~~~
a.cc:16:7: error: 'long long' specified with 'double'
   16 |  long long double y  = cos(PI / 180 * sita);
      |       ^~~~
a.cc:17:10: error: expected primary-expression before 'long'
   17 |   cout <<long long double( pow(A*A+B*B-2*A*B*y,0.5)) << endl;
      |          ^~~~
Language: C++

#include<iostream>
#include<stdio.h>
//#include <bits/stdc++.h>
#include<vector>
#include<float.h>
#include<iomanip>
#include<algorithm>
#include<string>
#include<cstring>
#include<math.h>
#include<cmath>
#include<sstream>
#include<set>
#include<map>
#include<queue>
#include <cassert>
#include <cmath>
#include<cstdint>

#define INF 1e9
#define rep(i,n)for(int i=0;(i)<(int)(n);i++)
#define REP(i,a,b)for(int i=(int)(a);(i)<=(int)(b);i++)
#define VEC(type, c, n) std::vector<type> c(n);for(auto& i:c)std::cin>>i;
#define vec(type,n) vector<type>(n)
#define vvec(m,n) vector<vector<int>> (int(m),vector<int>(n))
#define ALL(a)  (a).begin(),(a).end()


using namespace std;
using ll = long long;
using Graph = vector<vector<int>>;
using P = pair<ll, ll>;

const ll MOD = INF + 7;

const double pi = 3.1415926535897932384626433832795;
int main(){
    long double a, b, h, m;
    cin >> a >> b >> h >> m;

    long double r1 = m * pi * 2, r2 = pi * (h + m / 60);
    long double r = abs(r1 - r2);
  	r /= 6,0;
    if(r > pi)r = 2 * pi - r;
    long double res = pow(a * a + b * b - 2 * a * b * cos(r), 0.5000000000000);
    if(r == 0)res = abs(a - b);
    cout << fixed << setprecision(15) << res << endl;
}


#include<iostream>
#include<stdio.h>
//#include <bits/stdc++.h>
#include<vector>
#include<float.h>
#include<iomanip>
#include<algorithm>
#include<string>
#include<cstring>
#include<math.h>
#include<cmath>
#include<sstream>
#include<set>
#include<map>
#include<queue>
#include <cassert>
#include <cmath>
#include<cstdint>

#define INF 1e9
#define rep(i,n)for(int i=0;(i)<(int)(n);i++)
#define REP(i,a,b)for(int i=(int)(a);(i)<=(int)(b);i++)
#define VEC(type, c, n) std::vector<type> c(n);for(auto& i:c)std::cin>>i;
#define vec(type,n) vector<type>(n)
#define vvec(m,n) vector<vector<int>> (int(m),vector<int>(n))
#define ALL(a)  (a).begin(),(a).end()


using namespace std;
using ll = long long;
using Graph = vector<vector<int>>;
using P = pair<ll, ll>;

const ll MOD = INF + 7;

const double pi = 3.1415926535897932384626433832795;
int main(){
    long double a, b, h, m;
    cin >> a >> b >> h >> m;

    long double r1 = m * pi * 2, r2 = pi * (h + m / 60);
    long double r = abs(r1 - r2);
  	r /= 6,0;
    if(r > pi)r = 2 * pi - r;
    long double res = pow(a * a + b * b - 2 * a * b * cos(r), 0.5000000000000);
    if(r == 0)res = abs(a - b);
    cout << fixed << setprecision(15) << res << endl;
}




Compiler output:
a.cc:84:10: error: redefinition of 'const ll MOD'
   84 | const ll MOD = INF + 7;
      |          ^~~
a.cc:34:10: note: 'const ll MOD' previously defined here
   34 | const ll MOD = INF + 7;
      |          ^~~
a.cc:86:14: error: redefinition of 'const double pi'
   86 | const double pi = 3.1415926535897932384626433832795;
      |              ^~
a.cc:36:14: note: 'const double pi' previously defined here
   36 | const double pi = 3.1415926535897932384626433832795;
      |              ^~
a.cc:87:5: error: redefinition of 'int main()'
   87 | int main(){
      |     ^~~~
a.cc:37:5: note: 'int main()' previously defined here
   37 | int main(){
      |     ^~~~
Language: C++

#include <stdio.h>
#include <math.h>
int main() {
   double A,B,H,M;
   double distance,HH;
   double theta,phi;
   double CC;
   distance = 1000;
   scanf("%lf %lf %lf %lf", &A, &B, &H, &M);

    HH = H/12;  
    //printf("%lf\n",H);
    //printf("2*M_PI = %lf\n",2*M_PI);
    //printf("(H/12) = %lf\n",HH);
    theta = 2*M_PI*((H/12) + (M/(60*12)));
    
    //printf("theta = %f\n",theta);
    phi = 2*M_PI*(M/60);
    //printf("sin(theta) = %lf\n",sin(theta));
    CC = sqrt(sin(theta)*sin(theta) + cos(phi)*cos(phi));
    //printf("CC = %lf\n",CC);
    distance = sqrt((A*sin(theta)-B*sin(phi))^2 + (A*cos(theta)-B*cos(phi))^2);
    printf("%lf",distance);

  return 0;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:22:46: error: invalid operands of types 'double' and 'double' to binary 'operator^'
   22 |     distance = sqrt((A*sin(theta)-B*sin(phi))^2 + (A*cos(theta)-B*cos(phi))^2);
      |                     ~~~~~~~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
      |                                  |              |
      |                                  double         double
Language: C++

#include <stdio.h>
#include <math.h>
int main() {
   double A,B,H,M;
   double distance,HH;
   double theta,phi;
   double CC;
   distance = 1000;
   scanf("%lf %lf %lf %lf", &A, &B, &H, &M);

    HH = H/12;  
    //printf("%lf\n",H);
    //printf("2*M_PI = %lf\n",2*M_PI);
    //printf("(H/12) = %lf\n",HH);
    theta = 2*M_PI*((H/12) + (M/(60*12)));
    
    //printf("theta = %f\n",theta);
    phi = 2*M_PI*(M/60);
    //printf("sin(theta) = %lf\n",sin(theta));
    CC = sqrt(sin(theta)*sin(theta) + cos(phi)*cos(phi));
    //printf("CC = %lf\n",CC);
    distance = sqrt((A*sin(theta)-B*sin(theta))^2 + (A*cos(phi)-B*cos(phi))^2);
    printf("%lf",distance);

  return 0;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:22:48: error: invalid operands of types 'double' and 'double' to binary 'operator^'
   22 |     distance = sqrt((A*sin(theta)-B*sin(theta))^2 + (A*cos(phi)-B*cos(phi))^2);
      |                     ~~~~~~~~~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~
      |                                  |                |
      |                                  double           double
Language: C

#include<stdio.h>
#include<math.h>
int main(void){
  int a, b, h, m;
  scanf("%d%d%d%d", &a, &b, &h, &m);
  long double rad=2*PI*((long double)h/12.0-11.0*(long double)m/720.0);
  printf("lf",sqrtl((long double)(a*a+b*b)-(long double)(2*a*b)*cosl(rad)));
  return 0;
}
  

Compiler output:
main.c: In function 'main':
main.c:6:21: error: 'PI' undeclared (first use in this function)
    6 |   long double rad=2*PI*((long double)h/12.0-11.0*(long double)m/720.0);
      |                     ^~
main.c:6:21: note: each undeclared identifier is reported only once for each function it appears in
Language: C++

#include<iostream>
#include<cmath>
#include<iomanip>
using namespace std;
 
int main(){
	long long a, b, h, m;
	double r,rad,c;
 
	cin >> a >> b >> h >> m;
 
	r = static_cast<double>(6.0 * m - 0.5 * (h * 60.0 + m));
 
	if(r == 0.0) {
        c = b - a;
        if(c > 0) {
          cout << c;
        else {
          cout << -1*C
        }
		
		
		return 0;
	}else if(r == 180.0){
		c = b + a;
		cout << c;
		return 0;
	}else if(r > 180.0){
		r = 360.0 - r;
	}else if(r < 0.0){
		r = 360.0 + r;
	}
 
	rad = static_cast<double>(r * M_PI / 180.0);
 
	c = static_cast<double>(sqrt(static_cast<double>(a*a) + static_cast<double>(b*b) - static_cast<double>(2*a*b*cos(rad))));
 
	cout << fixed << setprecision(20) << c << endl;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:18:9: error: expected '}' before 'else'
   18 |         else {
      |         ^~~~
a.cc:16:19: note: to match this '{'
   16 |         if(c > 0) {
      |                   ^
a.cc:19:22: error: 'C' was not declared in this scope
   19 |           cout << -1*C
      |                      ^
Language: C++

int main(){
  int a,b,h,m;
  cin>>a>>b>>h>>m;
  double c = M_PI/6;
  double d = M_PI/30;
  double s;
  s = (a*a+b*b-2*a*b*cos(m*d*11.0/12.0-h*c));
  cout<<sqrtl((long double) s)<<endl;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:3:3: error: 'cin' was not declared in this scope
    3 |   cin>>a>>b>>h>>m;
      |   ^~~
a.cc:4:14: error: 'M_PI' was not declared in this scope
    4 |   double c = M_PI/6;
      |              ^~~~
a.cc:7:22: error: 'cos' was not declared in this scope
    7 |   s = (a*a+b*b-2*a*b*cos(m*d*11.0/12.0-h*c));
      |                      ^~~
a.cc:8:3: error: 'cout' was not declared in this scope
    8 |   cout<<sqrtl((long double) s)<<endl;
      |   ^~~~
a.cc:8:9: error: 'sqrtl' was not declared in this scope
    8 |   cout<<sqrtl((long double) s)<<endl;
      |         ^~~~~
a.cc:8:33: error: 'endl' was not declared in this scope
    8 |   cout<<sqrtl((long double) s)<<endl;
      |                                 ^~~~
Language: C++

#include <iostream>
#include <iomanip>
#include <vector>
#include <utility>
#include <string>
#include <map>
#include <algorithm>
#include <queue>
#include <cstdio>
#include <math.h>

using namespace std;

int main(){
    double a, b, h, m;
    cin >> a >> b >> h >> m;
    double nh = h*30;
    nh += m*0.5;
    mm *= 6;
    double ans;
    if(mm == nh){
       ans = b-a;
       cout << setprecision(20) << ans << endl;
       return 0;
    }
    double deg_o;
    deg_o = abs(nh-mm);
    double deg = (M_PI*deg_o)/180.0;
    ans = (a*a) + (b*b) - (2.0*a*b*cos(deg));
    ans = sqrt(ans);
    cout << setprecision(20) << fixed << ans << endl;
    return 0;
}


Compiler output:
a.cc: In function 'int main()':
a.cc:19:5: error: 'mm' was not declared in this scope; did you mean 'm'?
   19 |     mm *= 6;
      |     ^~
      |     m
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;
}

int main(){

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

  double angle = abs( ((double)h + 0.5 * (double)m - (double)m * 6 );
  double rad;
  if((int)angle == 180){
    printf("%.10f",a+b);
    return 0;
  }
    rad = (angle * M_PI/180);

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

  return 0;
}


Compiler output:
main.c: In function 'main':
main.c:21:69: error: expected ')' before ';' token
   21 |   double angle = abs( ((double)h + 0.5 * (double)m - (double)m * 6 );
      |                     ~                                               ^
      |                                                                     )
main.c:34:1: error: expected ',' or ';' before '}' token
   34 | }
      | ^
main.c:34:1: error: expected declaration or statement at end of input