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

#include<bits/stdc++.h>
using namespace std;
int main()
{
  int a,b,c,d;
  cin>>a>>b>>c>>d;
  int s[b-a+1],c=0;
  for(int i=a;i<=b;i++)
  {
    if(i%c!=0 && i%d!=0)
    {
      s[i]=i;
      c++;
    }
  }
   cout<<c;
  return 0;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:7:16: error: redeclaration of 'int c'
    7 |   int s[b-a+1],c=0;
      |                ^
a.cc:5:11: note: 'int c' previously declared here
    5 |   int a,b,c,d;
      |           ^
Language: C++

#include<iostream>
using namespace std;
typedef unsigned long long ll;

ll gcd(ll a, ll b){
	if(a==0) return b;
  	else return gcd(b%a, a)
}

ll lcm(ll a, ll b) { return a*b/gcd(a,b);}

ll find(ll a, ll b, ll c){
	return c-c/a-c/b+c/lcm(a,b);
}
int main(){
	ll A,B,C,D; cin>>A>>B>>C>>D;
  	cout<< find(C, D, B)- find(C, D, A-1)<<endl;
  return 0;
}

Compiler output:
a.cc: In function 'll gcd(ll, ll)':
a.cc:7:32: error: expected ';' before '}' token
    7 |         else return gcd(b%a, a)
      |                                ^
      |                                ;
    8 | }
      | ~
Language: C++

a, b, c, d = map(int,input().split())

ans = (b-a) - ((b-a+1)//c) - ((b-a+1)//d) + ((b-a+1)//(c*d))
print(ans)

Compiler output:
a.cc:1:1: error: 'a' does not name a type
    1 | a, b, c, d = map(int,input().split())
      | ^
Language: C++

#include<queue>
#include<cmath>
#include <numeric>
#include<iomanip>
#include <cstdint>
#include<deque>
typedef long long ll;

using namespace std;

ll gcd(ll a, ll b)
{
	if (a % b == 0)
	{
		return(b);
	}
	else
	{
		return(gcd(b, a % b));
	}
}

int main() {
	ll a, b, c, d;
	cin >> a >> b >> c >> d;
	ll x = (a - 1 - (a - 1) % c) / c;
	ll y = (b - b % c) / c;
	ll w = (a - 1 - (a - 1) % d) / d;
	ll z = (b - b % d) / d;
	ll g = gcd(c, d);
	//cout << g << endl;
	ll l = c * d / g;
	ll r = (a - 1 - (a - 1) % l) / l;
	ll s = (b - b % l) / l;
	ll ans = y - x + z - w - (s - r);
	//cout << ans << endl;
	ans = b - a + 1 - ans;
	cout << ans << endl;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:25:9: error: 'cin' was not declared in this scope
   25 |         cin >> a >> b >> c >> d;
      |         ^~~
a.cc:6:1: note: 'std::cin' is defined in header '<iostream>'; this is probably fixable by adding '#include <iostream>'
    5 | #include <cstdint>
  +++ |+#include <iostream>
    6 | #include<deque>
a.cc:38:9: error: 'cout' was not declared in this scope
   38 |         cout << ans << endl;
      |         ^~~~
a.cc:38:9: note: 'std::cout' is defined in header '<iostream>'; this is probably fixable by adding '#include <iostream>'
Language: Java

import java.util.Scanner;
public class Main{
 
  static int gcd (int a, int b) {
	int temp;
	while((temp = a%b)!=0) {
		a = b;
		b = temp;
	}
	return b;
}
  
 public static void main(String[] args){
   Scanner sc = new Scanner(System.in);
   long A = sc.nextLong()-1;
   long B = sc.nextLong();
   long C = sc.nextInt();
   long D = sc.nextInt();
   
   int gcd_cd = 0;
   if(C >=D) gcd_cd = gcd(C,D);
   else gcd_cd = gcd(D,C);
   
   long sum_B = (B/C) - (B/D) + (B/gcd_cd);
   long sum_A = (A/C) - (A/D) + (A/gcd_cd);
   
     
   System.out.println(sum_B-sum_A);
 }
}

Compiler output:
Main.java:21: error: incompatible types: possible lossy conversion from long to int
   if(C >=D) gcd_cd = gcd(C,D);
                          ^
Main.java:22: error: incompatible types: possible lossy conversion from long to int
   else gcd_cd = gcd(D,C);
                     ^
Note: Some messages have been simplified; recompile with -Xdiags:verbose to get full output
2 errors
Language: C++

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

int ggd(long long number1,long long number2){
	long long m = number1;
	long long n = number2;

	if(number2 > number1){
		m = number2;
		n = number1;
	}

	while(m != n){
		long long temp = n;
		n = m - n;
		m = temp;
	}

	return m;
}

int lcm(long long number1,long long number2){
	return number1 * number2 / ggd(number1,number2);	
}

int main() {
  long long a, b, c, d, e;
  cin >> a >> b >> c >> d;
  e = lcm(c, d);
  C = b/c - (a+(c-1))/c + 1;
  D = b/d - (a+(d-1))/d + 1;
  E = b/e - (a+(e-1))/e + 1;
  cout << (b-a+1) - (C+D-E) << endl;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:31:3: error: 'C' was not declared in this scope
   31 |   C = b/c - (a+(c-1))/c + 1;
      |   ^
a.cc:32:3: error: 'D' was not declared in this scope
   32 |   D = b/d - (a+(d-1))/d + 1;
      |   ^
a.cc:33:3: error: 'E' was not declared in this scope
   33 |   E = b/e - (a+(e-1))/e + 1;
      |   ^
Language: C++

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

int main() {
    ll A, B, C, D, T;
    cin >> A >> B >> C >> D;

    if (C > D) {
        ll M = C;
        ll N = D;
    } else {
        ll M = D;
        ll N = C;
    }

    while (T = M % N) {
        M = N;
        N = T;
    }

    ll G = N;
    ll L = (C * D) / G;

    ll ans_B = B - (B / C) - (B / D) + (B / L);
    ll ans_A = (A - 1) - ((A - 1) / C) - ((A - 1) / D) + ((A - 1) / L);

    cout << ans_B - ans_A << endl;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:17:16: error: 'M' was not declared in this scope
   17 |     while (T = M % N) {
      |                ^
a.cc:17:20: error: 'N' was not declared in this scope
   17 |     while (T = M % N) {
      |                    ^
a.cc:22:12: error: 'N' was not declared in this scope
   22 |     ll G = N;
      |            ^
Language: C++

#include <bits/stdc++.h>
using namespace std;
int main(){
    long long a, b, c, d;
    long long ans=0;
    cin >> a >> b >> c >> d;
    ans += (b / c - a / c) + (a % c == 0);
    ans += (b / d - a / d) + (a % d == 0);
    long long k;
    for(long long i=1;i<=d;i++){
        k=c*i
        if(k%d==0){
            break;
        }
    }
    ans -= (b / k - a / k) + (a % k == 0);
    ans = (b - a + 1) - ans;
    cout << ans << endl;
}



Compiler output:
a.cc: In function 'int main()':
a.cc:11:14: error: expected ';' before 'if'
   11 |         k=c*i
      |              ^
      |              ;
   12 |         if(k%d==0){
      |         ~~
Language: C++

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

ll gcd(ll c,ll d) {return d ? gcd(d,c%d) : c;}  

ll f2(ll c,ll d){
  return(c/f3(c,d)*d);
}

ll f(ll x,ll c,ll d){
  ll res = x;
  res -= x/c;
  res -= x/d;
  res += x/f(c,d);
  return res;
}

int main(){
  ll a,b,c,d;
  cin >> a >> b >> c >> d;
  ll ans = f(b,c,d) - f(a-1,c,d);
  cout << ans << endl;
}

Compiler output:
a.cc: In function 'll f2(ll, ll)':
a.cc:11:12: error: 'f3' was not declared in this scope; did you mean 'f2'?
   11 |   return(c/f3(c,d)*d);
      |            ^~
      |            f2
a.cc: In function 'll f(ll, ll, ll)':
a.cc:18:13: error: too few arguments to function 'll f(ll, ll, ll)'
   18 |   res += x/f(c,d);
      |            ~^~~~~
a.cc:14:4: note: declared here
   14 | ll f(ll x,ll c,ll d){
      |    ^
Language: C++

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

static int lcm (int a, int b) {
	long long temp;
	long long c = a;
	c *= b;
	while((temp = a%b)!=0) {
		a = b;
		b = temp;
	}
	return (int)(c/b);
}


int main(){
    long long a=0,b=0,c=0,d=0,e=0,s=0,t=0,u=0,r=1,ans=1;

    cin >> a >> b >> c >> d;

    e = b - a;

    if(c<=d) u = lcm(d,c);
    else u = lcm(c,d);

    t = e/c + e/d - e/u;

    ans = e - t;

    if (a%c == 0) ans++;
    if (a%d == 0) ans++;

    cout << ans << endl;
}


Compiler output:
a.cc:2:20: error: expected ';' before 'static'
    2 | using namespace std
      |                    ^
      |                    ;
    3 | 
    4 | static int lcm (int a, int b) {
      | ~~~~~~
Language: C++

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

static int lcm (int a, int b) {
	long long temp;
	long long c = a;
	c *= b;
	while((temp = a%b)!=0) {
		a = b;
		b = temp;
	}
	return (int)(c/b);
}


int main(){
    long long a=0,b=0,c=0,d=0,e=0,s=0,t=0,u=0,r=1;

    cin >> a >> b >> c >> d;

    e = b - a;

    if(c<=d) u = lcm(d,c);
    else u = lcm(c,d);

    t = e/c + e/d - e/u;

    ans = e - t;

    if (a%c == 0) ans++;
    if (a%d == 0) ans++;

    cout << ans << endl;
}


Compiler output:
a.cc:2:20: error: expected ';' before 'static'
    2 | using namespace std
      |                    ^
      |                    ;
    3 | 
    4 | static int lcm (int a, int b) {
      | ~~~~~~              
a.cc: In function 'int main()':
a.cc:28:5: error: 'ans' was not declared in this scope; did you mean 'abs'?
   28 |     ans = e - t;
      |     ^~~
      |     abs
Language: C++

/****************************************************
*   Template for coding contests                    *
*   Author    :    Sanjeev Sharma                   *
*   Email     :    thedevelopersanjeev@gmail.com    *
*****************************************************/
#pragma GCC optimize ("O3")
#pragma GCC target ("sse4")

#include <bits/stdc++.h>
#include <ext/pb_ds/tree_policy.hpp>
#include <ext/pb_ds/assoc_container.hpp>

using namespace std;

unsigned long long lcm(unsigned long long a, unsigned long long b){
    if(a == 0 && b == 0)
        return 0;
    return a/__gcd(a, b) * b;
}

int main(){
    ios_base::sync_with_stdio(false);
    cin.tie(NULL);
    cout.tie(NULL);
    unsigned long long a, b, c, d;
    cin >>a >>b >>c >>d;
    unsigned long long total = b - a + 1;
    unsigned long long lcmcd = lcm(c, d);
    cout <<total - ((b/c) - (a-1)/c) - ((b/d) - (a-1)/d) + ((b/lcm) - (a-1)/lcm);
    return 0;
}


Compiler output:
a.cc: In function 'int main()':
a.cc:29:63: error: invalid operands of types 'long long unsigned int' and '<unresolved overloaded function type>' to binary 'operator/'
   29 |     cout <<total - ((b/c) - (a-1)/c) - ((b/d) - (a-1)/d) + ((b/lcm) - (a-1)/lcm);
      |                                                              ~^~~~
a.cc:29:76: error: invalid operands of types 'long long unsigned int' and '<unresolved overloaded function type>' to binary 'operator/'
   29 |     cout <<total - ((b/c) - (a-1)/c) - ((b/d) - (a-1)/d) + ((b/lcm) - (a-1)/lcm);
      |                                                                       ~~~~~^~~~
Language: C++

#include<bits/stdc++.h>
#define int long long;
using namespace std;
int koyaku(int g,int l){
  if(g==l) return g;
  else return koyaku(l,g%l);
}
int main(){
  int a,b,c,d;
  cin >> a >> b >> c >> d;
  int koya = koyaku(a,b);
  cout << a/koya - (b-1)/koya;
}


Compiler output:
a.cc:2:18: error: declaration does not declare anything [-fpermissive]
    2 | #define int long long;
      |                  ^~~~
a.cc:4:1: note: in expansion of macro 'int'
    4 | int koyaku(int g,int l){
      | ^~~
a.cc:2:22: error: expected ')' before ';' token
    2 | #define int long long;
      |                      ^
a.cc:4:12: note: in expansion of macro 'int'
    4 | int koyaku(int g,int l){
      |            ^~~
a.cc:4:11: note: to match this '('
    4 | int koyaku(int g,int l){
      |           ^
a.cc:2:22: error: expected constructor, destructor, or type conversion before ';' token
    2 | #define int long long;
      |                      ^
a.cc:4:12: note: in expansion of macro 'int'
    4 | int koyaku(int g,int l){
      |            ^~~
a.cc:4:16: error: 'g' does not name a type
    4 | int koyaku(int g,int l){
      |                ^
a.cc:4:22: error: 'l' does not name a type
    4 | int koyaku(int g,int l){
      |                      ^
a.cc:2:18: error: declaration does not declare anything [-fpermissive]
    2 | #define int long long;
      |                  ^~~~
a.cc:8:1: note: in expansion of macro 'int'
    8 | int main(){
      | ^~~
a.cc:8:5: warning: ISO C++ forbids declaration of 'main' with no type [-Wreturn-type]
    8 | int main(){
      |     ^~~~
a.cc: In function 'int main()':
a.cc:2:18: error: declaration does not declare anything [-fpermissive]
    2 | #define int long long;
      |                  ^~~~
a.cc:9:3: note: in expansion of macro 'int'
    9 |   int a,b,c,d;
      |   ^~~
a.cc:9:7: error: 'a' was not declared in this scope
    9 |   int a,b,c,d;
      |       ^
a.cc:9:9: error: 'b' was not declared in this scope
    9 |   int a,b,c,d;
      |         ^
a.cc:9:11: error: 'c' was not declared in this scope
    9 |   int a,b,c,d;
      |           ^
a.cc:9:13: error: 'd' was not declared in this scope
    9 |   int a,b,c,d;
      |             ^
a.cc:2:18: error: declaration does not declare anything [-fpermissive]
    2 | #define int long long;
      |                  ^~~~
a.cc:11:3: note: in expansion of macro 'int'
   11 |   int koya = koyaku(a,b);
      |   ^~~
a.cc:11:7: error: 'koya' was not declared in this scope
   11 |   int koya = koyaku(a,b);
      |       ^~~~
a.cc:11:14: error: 'koyaku' was not declared in this scope
   11 |   int koya = koyaku(a,b);
      |              ^~~~~~
Language: C

#include<stdio.h>
int main()
{
	using long long  a, b, c, d, cnt = 0, x, y;
	scanf("%lld %lld %lld %lld", &a, &b, &c, &d);
	for (int i = a; i <= b; i++) {
		x = i % c;
		y = i % d;
		if (x != 0 && y != 0) {
			cnt++;
		}
	}
	printf("%lld\n", cnt);
	return 0;
}

Compiler output:
main.c: In function 'main':
main.c:4:9: error: 'using' undeclared (first use in this function)
    4 |         using long long  a, b, c, d, cnt = 0, x, y;
      |         ^~~~~
main.c:4:9: note: each undeclared identifier is reported only once for each function it appears in
main.c:4:14: error: expected ';' before 'long'
    4 |         using long long  a, b, c, d, cnt = 0, x, y;
      |              ^~~~~
      |              ;
main.c:5:39: error: 'a' undeclared (first use in this function)
    5 |         scanf("%lld %lld %lld %lld", &a, &b, &c, &d);
      |                                       ^
main.c:5:43: error: 'b' undeclared (first use in this function)
    5 |         scanf("%lld %lld %lld %lld", &a, &b, &c, &d);
      |                                           ^
main.c:5:47: error: 'c' undeclared (first use in this function)
    5 |         scanf("%lld %lld %lld %lld", &a, &b, &c, &d);
      |                                               ^
main.c:5:51: error: 'd' undeclared (first use in this function)
    5 |         scanf("%lld %lld %lld %lld", &a, &b, &c, &d);
      |                                                   ^
main.c:7:17: error: 'x' undeclared (first use in this function)
    7 |                 x = i % c;
      |                 ^
main.c:8:17: error: 'y' undeclared (first use in this function)
    8 |                 y = i % d;
      |                 ^
main.c:10:25: error: 'cnt' undeclared (first use in this function); did you mean 'int'?
   10 |                         cnt++;
      |                         ^~~
      |                         int
Language: C++

ll lcm(ll x, ll y) {
    ll a = x;
    ll b = y;
    int temp;
    while (y != 0) {
        temp = y;
        y = x % y;
        x = temp;
    }
    return a / x * b;
}

ll notMultiple(ll x, ll y, ll z) {
    return x - x / y - x / z + x / lcm(y, z);
}

int main() {
    cin.tie(nullptr);
    ios::sync_with_stdio(false);
    ll a, b, c, d;
    cin >> a >> b >> c >> d;
    cout << notMultiple(b, c, d) - notMultiple(a - 1, c, d) << endl;
}


Compiler output:
a.cc:1:1: error: 'll' does not name a type
    1 | ll lcm(ll x, ll y) {
      | ^~
a.cc:13:1: error: 'll' does not name a type
   13 | ll notMultiple(ll x, ll y, ll z) {
      | ^~
a.cc: In function 'int main()':
a.cc:18:5: error: 'cin' was not declared in this scope
   18 |     cin.tie(nullptr);
      |     ^~~
a.cc:19:5: error: 'ios' has not been declared
   19 |     ios::sync_with_stdio(false);
      |     ^~~
a.cc:20:5: error: 'll' was not declared in this scope
   20 |     ll a, b, c, d;
      |     ^~
a.cc:21:12: error: 'a' was not declared in this scope
   21 |     cin >> a >> b >> c >> d;
      |            ^
a.cc:21:17: error: 'b' was not declared in this scope
   21 |     cin >> a >> b >> c >> d;
      |                 ^
a.cc:21:22: error: 'c' was not declared in this scope
   21 |     cin >> a >> b >> c >> d;
      |                      ^
a.cc:21:27: error: 'd' was not declared in this scope
   21 |     cin >> a >> b >> c >> d;
      |                           ^
a.cc:22:5: error: 'cout' was not declared in this scope
   22 |     cout << notMultiple(b, c, d) - notMultiple(a - 1, c, d) << endl;
      |     ^~~~
a.cc:22:13: error: 'notMultiple' was not declared in this scope
   22 |     cout << notMultiple(b, c, d) - notMultiple(a - 1, c, d) << endl;
      |             ^~~~~~~~~~~
a.cc:22:64: error: 'endl' was not declared in this scope
   22 |     cout << notMultiple(b, c, d) - notMultiple(a - 1, c, d) << endl;
      |                                                                ^~~~
Language: C++

import fractions
def f(a, b, p):
    return b // p - (a - 1) // p
a, b, c, d = map(int, input().split())
l = c * d // fractions.gcd(c, d)
print((b - a + 1) - f(a, b, c) - f(a, b, d) + f(a, b, l))

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

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

ll gcd(ll a, ll b){
  return b ? gcd(b,a%b) : a;
}

ll lcm(ll a, ll b){
  return a/gcd(a,b)*b;
}

ll f(ll x, int c, int d){
  ll res =x;
  res -= x/c;
  res -= x/d;
  res += x/lcm(c,d);
  return res;
}

int main() {
  long a, b;
  cin >> a >> b;
  int c, d;
  cin >> c >> d;
  ll ans = f(b,c,d)-f(a-1,c,d);
  cout << ans << endl;
  return 0;
}


Compiler output:
a.cc:3:1: error: 'typeded' does not name a type; did you mean 'typedef'?
    3 | typeded long long ll;
      | ^~~~~~~
      | typedef
a.cc:5:1: error: 'll' does not name a type
    5 | ll gcd(ll a, ll b){
      | ^~
a.cc:9:1: error: 'll' does not name a type
    9 | ll lcm(ll a, ll b){
      | ^~
a.cc:13:1: error: 'll' does not name a type
   13 | ll f(ll x, int c, int d){
      | ^~
a.cc: In function 'int main()':
a.cc:26:3: error: 'll' was not declared in this scope
   26 |   ll ans = f(b,c,d)-f(a-1,c,d);
      |   ^~
a.cc:27:11: error: 'ans' was not declared in this scope; did you mean 'abs'?
   27 |   cout << ans << endl;
      |           ^~~
      |           abs
Language: C++

#include<iostream>
#include<vector>

long long gcd(long long a,long long b){
    while(a&&b){
        if(a>b) a %= b;
        else b %= a;
    }
    return a+b;
}

long long lcm(long long a,long long b){
    return a*b/gcd(a,b);
}


int main()
{
    long long a,b,c,d;
    std::cin>>a>>b>>c>>d;
    long long lcmcd = lcm(c,d);
    long long div_c = b/c-(a-1)/c;
    long long div_d = b/d-(a-1)/d;
    long long div_lcm = b/lcmcd - (a-1)/lcmcd;
    std::cout<<b-a+1-(div_c+div_d-div_lcm)<<std::endl;
  	return 0
}

Compiler output:
a.cc: In function 'int main()':
a.cc:26:17: error: expected ';' before '}' token
   26 |         return 0
      |                 ^
      |                 ;
   27 | }
      | ~
Language: C++

def gcd(x,y):
  if(y==0):
  	return x
  if(x<y):
    x,y=y,x
  return gcd(y,x % y)
def lllen(a,b,c):
  at=a//c
  at=at*c
  b=b//c *c
  ansc=0
  while(at<a):
    at+=c
  ansc=b-at
  if ansc<0 :
  	ansc=0
  else:
  	ansc=ansc//c + 1
  	return ansc

a,b,c,d=map(int , input().strip().split() )
tl=b-a+1

ansc=lllen(a,b,c)
ansd=lllen(a,b,d)
ansl=lllen(a,b,(c*d)//gcd(c,d))
print(ansc,ansl,ansd)
print(b-a+1 -ansc -ansd + ansl)


Compiler output:
a.cc:1:1: error: 'def' does not name a type
    1 | def gcd(x,y):
      | ^~~
Language: C++

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

ll gcd(ll a, ll b) {
  if (b == 0) return a;
  else return gcd(b, a % b);
}

int main() {
  ll A, B, C, D;
  cin >> A >> B >> C >> D;
  ll A -= 1;
  ll X = (B - B / C - B / D + B / (C * D / gcd(C, D)));
  ll Y = (A - A / C - A / D + A / (C * D / gcd(C, D)));
  cout << X - Y << endl;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:13:8: error: expected initializer before '-=' token
   13 |   ll A -= 1;
      |        ^~
Language: C++

#include <bits/stdc++.h>
#include <algorithm>
using namespace std;
 
long long gcd(long long a,long long b){
  if(b == 0) return a;
  return gcd(b,a%b);
}

long long lcm(long long a,long long b){
  long long g = gcd(a,b);
  return a/g*b;
}

int main(){
  
  long long int a,b,c,d;
  cin >>a >> b>>c>>d;
  
  cout << (b-(b/c+b/d-b/lcm(c,d)))-(a-1-((a-1)/c+(a-1)/d-b/lcm(c,d)) << endl;
                                    }

Compiler output:
a.cc: In function 'int main()':
a.cc:20:70: error: invalid operands of types 'long long int' and '<unresolved overloaded function type>' to binary 'operator<<'
   20 |   cout << (b-(b/c+b/d-b/lcm(c,d)))-(a-1-((a-1)/c+(a-1)/d-b/lcm(c,d)) << endl;
      |                                     ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~^~~~~~~
a.cc:20:77: error: expected ')' before ';' token
   20 |   cout << (b-(b/c+b/d-b/lcm(c,d)))-(a-1-((a-1)/c+(a-1)/d-b/lcm(c,d)) << endl;
      |                                    ~                                        ^
      |                                                                             )
Language: C++

#include<bits/stdc++.h>
using namespace std;
typedef Long Long ll;
ll gcd(ll a,ll b){return b?:gcd(b,a%b):a;}
ll lcm(ll a,ll b){return a/gcd(a,b)*b;}

ll f(ll x,int c,int d){
  ll res=x;
  res -= x/c;
  res -= x/d;
  res += x/lcm(c,d);
  return res;
}

int main(){
  int A,B,c,d;
  cin >> A >> B >> c >> d;
  ll ans = f(B,c,d) - f(A-1,c,d);
  cout << ans << endl;
  
}

Compiler output:
a.cc:3:9: error: 'Long' does not name a type; did you mean 'long'?
    3 | typedef Long Long ll;
      |         ^~~~
      |         long
a.cc:4:1: error: 'll' does not name a type
    4 | ll gcd(ll a,ll b){return b?:gcd(b,a%b):a;}
      | ^~
a.cc:5:1: error: 'll' does not name a type
    5 | ll lcm(ll a,ll b){return a/gcd(a,b)*b;}
      | ^~
a.cc:7:1: error: 'll' does not name a type
    7 | ll f(ll x,int c,int d){
      | ^~
a.cc: In function 'int main()':
a.cc:18:3: error: 'll' was not declared in this scope
   18 |   ll ans = f(B,c,d) - f(A-1,c,d);
      |   ^~
a.cc:19:11: error: 'ans' was not declared in this scope; did you mean 'abs'?
   19 |   cout << ans << endl;
      |           ^~~
      |           abs
Language: C++

#include <bits/stdc++.h>
using namespace std;
int main(){
  int A, B, C, D;
  cin >> A >> B >> C >> D;
  int n;
  int div_CD;
  n = A/C;
  while (n*C <= B){
    if (n*C >= A && (n*C)%D == 0){
      div_CD ++ ;
      }
    }
    n++;
  }
  cout << B-A+1-div_CD <<endl;
  }
}
    

Compiler output:
a.cc:16:3: error: 'cout' does not name a type
   16 |   cout << B-A+1-div_CD <<endl;
      |   ^~~~
a.cc:17:3: error: expected declaration before '}' token
   17 |   }
      |   ^
a.cc:18:1: error: expected declaration before '}' token
   18 | }
      | ^
Language: C++

#include <bits/stdc++.h>
using namespace std;
int main(){
  int A, B, C, D;
  cin >> A >> B >> C >> D;
  int n;
  int div_CD;
  n = A/C;
  while (n*C <= B){
    if (n*C => A && (n*C)%D == 0){
      div_CD ++ ;
      }
    }
    n++;
  }
  int m;
  m = A/D;
  while (m * D <= B){
    if (m*D => A){
      div_D;
    }
    m ++;
  }
}
    

Compiler output:
a.cc: In function 'int main()':
a.cc:10:14: error: expected primary-expression before '>' token
   10 |     if (n*C => A && (n*C)%D == 0){
      |              ^
a.cc: At global scope:
a.cc:17:3: error: 'm' does not name a type; did you mean 'tm'?
   17 |   m = A/D;
      |   ^
      |   tm
a.cc:18:3: error: expected unqualified-id before 'while'
   18 |   while (m * D <= B){
      |   ^~~~~
a.cc:24:1: error: expected declaration before '}' token
   24 | }
      | ^
Language: C++

#include<cstdio>
#include<cstring>
#include<algorithm>
using namespace std;
int main(){
	long long a,b,g;
	int c,d;
	while(~scanf("%lld%lld%d%d",&a,&b,&c,&d))
	{
		g=0;
		for(i=a;i<=b;i++)
		{
		
			if((i%d!=0)&&(i%c!=0))
		    g+=1;
		}
		printf("%lld\n",g);
	}
}

Compiler output:
a.cc: In function 'int main()':
a.cc:11:21: error: 'i' was not declared in this scope
   11 |                 for(i=a;i<=b;i++)
      |                     ^
Language: C++

#include<bits/stdc++.h>
using namespace std;
typedef long long int ll;
ll MOD = (1e9)+7;
void fastIO(){
  ios_base::sync_with_stdio(0); cin.tie(0);
}

ll lcm(ll a, ll b){
    ll temp = __gcd(a, b);
    return temp ? (a / temp * b) : 0;
}
int main(){
  fastIO();
  ll a,b,c,d;
  cin>>a>>b>>c>>d;
  ll x = lcm(c,d);
  ll limA1 = (a/c), limA2 = (b/c);
  ll limB1 = (a/d), limB2 = (b/d);
  ll limC1 = (a/x), limC2 = (b/x);
  ll k = (limA2-limA1)+(limB2-limB1)-(limC2-limC1);
  a%c==0?k++:k=k,a%d==0?k++:k=k;
  cout<<max(((b-a)+1)-k,0)<<endl;
}  



Compiler output:
a.cc: In function 'int main()':
a.cc:23:12: error: no matching function for call to 'max(ll, int)'
   23 |   cout<<max(((b-a)+1)-k,0)<<endl;
      |         ~~~^~~~~~~~~~~~~~~
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:   template argument deduction/substitution failed:
a.cc:23:12: note:   deduced conflicting types for parameter 'const _Tp' ('long long int' and 'int')
   23 |   cout<<max(((b-a)+1)-k,0)<<endl;
      |         ~~~^~~~~~~~~~~~~~~
/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, 2 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:   candidate expects 1 argument, 2 provided
/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:   template argument deduction/substitution failed:
a.cc:23:12: note:   mismatched types 'std::initializer_list<_Tp>' and 'long long int'
   23 |   cout<<max(((b-a)+1)-k,0)<<endl;
      |         ~~~^~~~~~~~~~~~~~~
Language: C++

#include <bits/stdc++.h>
#include <cstdlib>  // abs() for integer 絶対値求めやつ
#include <cmath>    // abs() for float, and fabs()
#include <algorithm>
#include <vector>
#include <string>
#include<iomanip>//浮動小数点数を出力する制度の指定
//使い方　数値をnumとして　cout<<setprecision(n)<<num ;nは桁数
#define rep(i,n) for(int i = 0; i < (n);i++)
#define SORT(a) sort((a).begin(),(a).end())
#define REV(a) reverse((a).begin(),(a).end())
using namespace std;
using ll =long long;
#define INF 2000000000
template<class T> inline bool chmin(T& a, T b) { if (a > b) { a = b; return true; } return false; }
template<class T> inline bool chmax(T& a, T b) { if (a < b) { a = b; return true; } return false; }
#define che(a,string) cout<<"//"<<string <<"=="<<(a)<<"//" <<endl;
bool IsInt(double a){int b = a/1;if(a==b){return true;}else {return false;}}
/*覚えてないことメaモ
  数値型から文字列に変換　to_string(number);これは簡単
  文字列から数値型に変換　stoi(number)
  文字列からllに変換　stoll(number)*/

//ここから書き始める
//実験

int main(){
	ll a,b, c, d;// A以上B以下のうち CでもDでも割り切れないものの個数	
	cin >> a>> b >> c >> d;
	ll ans = 0;
	ll whole = b - a +1  ;//考えられる個数 ここからcかdで割り切れる物の数を引くわけだ。
	ll revans = 0;
	// c 
	revans += b / c - (a-1) / c;
	// d
	revans += b / d - (a-1) / d;
	//c*d
	ll cd = c*d/_gcd(c,d);
	revans -= b/(cd) -(a-1)/(cd);
	ans = whole - revans ;
	cout<<ans<<endl;
}



Compiler output:
a.cc: In function 'int main()':
a.cc:38:21: error: '_gcd' was not declared in this scope; did you mean 'cd'?
   38 |         ll cd = c*d/_gcd(c,d);
      |                     ^~~~
      |                     cd
Language: C++

#include <bits/stdc++.h>
#define rep(i,n) for(int i=0;i<(int)(n);i++)
#define repl(i,n) for(int64_t i=0;i<(int64_t)(n);i++)
#define MAX_N 10000000
#define ll int64_t
#define all(v) (v).begin(),(v).end()
#define P pair<int,int>
using namespace std;

int gcd(ll a, ll b) {
  return b ? gcd(b,a%b):a; //三項演算子
}

int lcm(ll a, ll b) {
  return a/gcd(a,b)*b;
}

int f(ll x, int c,int d) {
  ll res=x;
  res-=x/c; res-=x/d; res+=x/lcm(c,d)
  return res;
}

int main() {
    ll a,b; int c,d;
    cin>>a>>b>>c>>d;
    ll ans=f(b,c,d)-f(a-1,c,d);
    cout<<ans<<endl;
    return 0;
}

Compiler output:
a.cc: In function 'int f(int64_t, int, int)':
a.cc:20:38: error: expected ';' before 'return'
   20 |   res-=x/c; res-=x/d; res+=x/lcm(c,d)
      |                                      ^
      |                                      ;
   21 |   return res;
      |   ~~~~~~                              
a.cc:22:1: warning: no return statement in function returning non-void [-Wreturn-type]
   22 | }
      | ^
Language: C++

#include <bits/stdc++.h>
#define rep(i,n) for(int i=0;i<(int)(n);i++)
#define repl(i,n) for(int64_t i=0;i<(int64_t)(n);i++)
#define MAX_N 10000000
#define ll int64_t
#define all(v) (v).begin(),(v).end()
#define P pair<int,int>
using namespace std;

int gcd(ll a, ll b) {
  return b ? gcd(b,a%b):a; //三項演算子
}

int lcm(ll a, ll b) {
  return a/gcd(a,b)*b;
}

int f(ll x, int c,int d) {
  ll res=x;
  res-=x/c; res-=x/d; res+=x,lcm(c,d)
  return res;
}

int main() {
    ll a,b; int c,d;
    cin>>a>>b>>c>>d;
    ll ans=f(b,c,d)-f(a-1,c,d);
    cout<<ans<<endl;
    return 0;
}

Compiler output:
a.cc: In function 'int f(int64_t, int, int)':
a.cc:20:38: error: expected ';' before 'return'
   20 |   res-=x/c; res-=x/d; res+=x,lcm(c,d)
      |                                      ^
      |                                      ;
   21 |   return res;
      |   ~~~~~~                              
a.cc:22:1: warning: no return statement in function returning non-void [-Wreturn-type]
   22 | }
      | ^
Language: C++

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

ll gcd(ll a, ll b){
	if(a < b) swap(a,b);
	if(a%b==0) return b;a
	else return gcd(a%b,b);
}

int main(){
	ll a,b,c,d;
	cin >> a >> b >> c >> d;
	ll g = gcd(c,d);
	ll cd = g * c/g * d/g;
	ll ans = (b-a+1) - (b/c - a/c) - (b/d - a/d) + (b/cd - a/cd);
	if(a % c == 0) ans--;
	if(a % d == 0) ans--;
	if(a % cd == 0) ans++;
	cout << ans << endl;
	return 0;
}

Compiler output:
a.cc: In function 'll gcd(ll, ll)':
a.cc:8:30: error: expected ';' before 'else'
    8 |         if(a%b==0) return b;a
      |                              ^
      |                              ;
    9 |         else return gcd(a%b,b);
      |         ~~~~                  
a.cc:10:1: warning: control reaches end of non-void function [-Wreturn-type]
   10 | }
      | ^
Language: C++

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

ull gcd(ull a,ull b){return b?gcd(b,a%b):a;}
ull lcm(ull a,ull b){return (a*b)/gcd(a,b);}

int main(){
  ull a,b,c,d;cin >> a >> b >> c >> d;
  ull xy = b/lcm(c,d) - (a-1)/lcm(c,d);
  ull x = (b/c) - (a-1)/c;
  ull y = (b/d) - (a-1)/d;
  ull ans = (b-a+1) - (x+y-xy);
  cout << ans << endl;
  return 0;
}

Compiler output:
a.cc:1:2: error: stray '#' in program
    1 | z#include<bits/stdc++.h>
      |  ^
a.cc:1:1: error: 'z' does not name a type
    1 | z#include<bits/stdc++.h>
      | ^
a.cc: In function 'int main()':
a.cc:10:15: error: 'cin' was not declared in this scope
   10 |   ull a,b,c,d;cin >> a >> b >> c >> d;
      |               ^~~
a.cc:15:3: error: 'cout' was not declared in this scope
   15 |   cout << ans << endl;
      |   ^~~~
a.cc:15:18: error: 'endl' was not declared in this scope
   15 |   cout << ans << endl;
      |                  ^~~~
Language: C++

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

//最大公約数
ll gcd(ll a, ll b) {
  while (a && b) {
	    if (a >= b) a %= b;
    else b %= a;
	  }
  return a + b;
	}
	//最小公倍数
  ll lcm(ll a, ll b) { return (a / gcd(a, b)) * b;}

int main(){
  ll A, B, C, D; cin >> A >> B >> C >> D;
  ll ans = 0;
  
  ll lcmcd = lcm(C, D);
  
  ans =B - (B/C + B/D - B/lcmcd) - (A-1) + (A-1/C + A-1/D - A-1/lcmcd));
  
  cout << ans << endl;
}


Compiler output:
a.cc: In function 'int main()':
a.cc:23:71: error: expected ';' before ')' token
   23 |   ans =B - (B/C + B/D - B/lcmcd) - (A-1) + (A-1/C + A-1/D - A-1/lcmcd));
      |                                                                       ^
      |                                                                       ;
Language: C++

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

//最大公約数
ll gcd(ll a, ll b) {
  while (a && b) {
	    if (a >= b) a %= b;
    else b %= a;
	  }
  return a + b;
	}
	//最小公倍数
  ll lcm(ll a, ll b) { return (a / gcd(a, b)) * b;}

int main(){
  ll A, B, C, D; cin >> A >> B >> C >> D;
  ll ans = 0;
  
  ll lcmcd = lcm(C, D);
  
  ans =B - (B/C + B/D - B/lcmcd) - { A-1 -(A-1/C + A-1/D - A-1/lcmcd)};
  
  cout << ans << endl;
}


Compiler output:
a.cc: In function 'int main()':
a.cc:23:36: error: expected primary-expression before '{' token
   23 |   ans =B - (B/C + B/D - B/lcmcd) - { A-1 -(A-1/C + A-1/D - A-1/lcmcd)};
      |                                    ^
Language: C++

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

//最大公約数
ll gcd(ll a, ll b) {
  while (a && b) {
	    if (a >= b) a %= b;
    else b %= a;
	  }
  return a + b;
	}
	//最小公倍数
  ll lcm(ll a, ll b) { return (a / gcd(a, b)) * b;}

int main(){
  int A, B, C, D; cin >> A >> B >> C >> D;
  int ans = 0;
  
  ll lcmcd = lcm(C, D);
  for(int i=A, i <= B , i++){
    if(i % lcmcd == 0){
      ans++;
    }
  }
  
  cout << ans << endl;
}
    
  


Compiler output:
a.cc: In function 'int main()':
a.cc:22:17: error: expected ';' before '<=' token
   22 |   for(int i=A, i <= B , i++){
      |                 ^~~
      |                 ;
a.cc:22:18: error: expected primary-expression before '<=' token
   22 |   for(int i=A, i <= B , i++){
      |                  ^~
a.cc:22:28: error: expected ';' before ')' token
   22 |   for(int i=A, i <= B , i++){
      |                            ^
      |                            ;
Language: C++

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

//最大公約数
ll gcd(ll a, ll b) {
  while (a && b) {
	    if (a >= b) a %= b;
    else b %= a;
	  }
  return a + b;
	}
	//最小公倍数
  ll lcm(ll a, ll b) { return (a / gcd(a, b)) * b;}

int main(){
  int A, B, C, D; cin >> A >> B >> C >> D;
  int ans = 0;
  
  ll lcmcd = lcm(C, D)
  for(int i=A, i <= B , i++){
    if(i % lcmcd == 0){
      ans++;
    }
  }
  
  cout << ans << endl;
}
    
  


Compiler output:
a.cc: In function 'int main()':
a.cc:22:3: error: expected ',' or ';' before 'for'
   22 |   for(int i=A, i <= B , i++){
      |   ^~~
Language: C++

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

//最大公約数
ll gcd(ll a, ll b) {
  while (a && b) {
	    if (a >= b) a %= b;
    else b %= a;
	  }
  return a + b;
	}
	//最小公倍数
  ll lcm(ll a, ll b) { return (a / gcd(a, b)) * b;}

int main(){
  int A, B, C, D; cin >> A >> B >> C >> D;
  int ans = 0;
  
  lcmcd = lcm(C, D)
  for(int i=A, i <= B , i++){
    if(i % lcmcd == 0){
      ans++;
    }
  }
  
  cout << ans << endl;
}
    
  


Compiler output:
a.cc: In function 'int main()':
a.cc:21:3: error: 'lcmcd' was not declared in this scope; did you mean 'lcm'?
   21 |   lcmcd = lcm(C, D)
      |   ^~~~~
      |   lcm
Language: C++

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

//最大公約数
ll gcd(ll a, ll b) {
  while (a && b) {
	    if (a >= b) a %= b;
    else b %= a;
	  }
  return a + b;
	}
	//最小公倍数
  ll lcm(ll a, ll b) { return (a / gcd(a, b)) * b;}

int main(){
  int A, B, C, D; cin >> A >> B >> C >> D;
  int ans = 0;
  
  lcmcd = lcm(c, d)
  for(int i=A, i <= B , i++){
    if(i % lcmcd == 0){
      ans++;
    }
  }
  
  cout << ans << endl;
}
    
  


Compiler output:
a.cc: In function 'int main()':
a.cc:21:3: error: 'lcmcd' was not declared in this scope; did you mean 'lcm'?
   21 |   lcmcd = lcm(c, d)
      |   ^~~~~
      |   lcm
a.cc:21:15: error: 'c' was not declared in this scope
   21 |   lcmcd = lcm(c, d)
      |               ^
a.cc:21:18: error: 'd' was not declared in this scope
   21 |   lcmcd = lcm(c, d)
      |                  ^
Language: C++

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

1.	//最大公約数
2.	ll gcd(ll a, ll b) {
3.	  while (a && b) {
4.	    if (a >= b) a %= b;
5.	    else b %= a;
6.	  }
7.	  return a + b;
8.	}
9.	//最小公倍数
10.  ll lcm(ll a, ll b) { return (a / gcd(a, b)) * b;}

int main(){
  int A, B, C, D; cin >> A >> B >> C >> D;
  int ans = 0;
  
  lcmcd = lcm(c, d)
  for(int i=A, i <= B , i++){
    if(i % lcmcd == 0){
      ans++;
    }
  }
  
  cout << ans << endl;
}
    
  

Compiler output:
a.cc:6:1: error: expected unqualified-id before numeric constant
    6 | 1.      //最大公約数
      | ^~
a.cc:14:1: error: expected unqualified-id before numeric constant
   14 | 9.      //最小公倍数
      | ^~
a.cc: In function 'int main()':
a.cc:21:3: error: 'lcmcd' was not declared in this scope
   21 |   lcmcd = lcm(c, d)
      |   ^~~~~
a.cc:21:15: error: 'c' was not declared in this scope
   21 |   lcmcd = lcm(c, d)
      |               ^
a.cc:21:18: error: 'd' was not declared in this scope
   21 |   lcmcd = lcm(c, d)
      |                  ^
Language: Java

import java.util.Scanner;

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

		long a = sc.nextLong() - 1;
		long b = sc.nextLong();
		long c = sc.nextLong();
		long d = sc.nextLong();

		long countA = 0;
		long countB = 0;

		long n = c;
		long m = d;

		long tmp = 0;
		while (n % m != 0) {
			tmp = n;
			n = m % n;
			m = tmp;
		}
		tmp = c /tmp *s d / tmp;

		countA = a - a / c - a / d + a / tmp;
		countB = b - b / c - b / d + b / tmp;

		System.out.println(countB - countA);
	}
}

Compiler output:
Main.java:24: error: ';' expected
		tmp = c /tmp *s d / tmp;
		               ^
Main.java:24: error: not a statement
		tmp = c /tmp *s d / tmp;
		                  ^
2 errors
Language: C++

#include<bits/stdc++.h>
#define rep(i,n)for(int i=0;i<n;++i)
#include<string>
using namespace std;
typedef Long Long ll;
ll gcd(ll a, ll b) { return b ? gcd(b, a % b) : a; }
ll lcm(ll a, ll b) { return a / gcd(a, b) * b; }

ll f(ll x, int c, int d) {
	ll res = x;
	res -= x / c;
	res -= x / d;
	res += x / lcm(c, d);
	return res;
}
int main() {
	ll a, b;
	int c, d;
	cin >> a >> b >> c >> d;
	ll ans = f(b, c, d) - f(a - 1, c, d);
	cout << ans << endl;
}

Compiler output:
a.cc:5:9: error: 'Long' does not name a type; did you mean 'long'?
    5 | typedef Long Long ll;
      |         ^~~~
      |         long
a.cc:6:1: error: 'll' does not name a type
    6 | ll gcd(ll a, ll b) { return b ? gcd(b, a % b) : a; }
      | ^~
a.cc:7:1: error: 'll' does not name a type
    7 | ll lcm(ll a, ll b) { return a / gcd(a, b) * b; }
      | ^~
a.cc:9:1: error: 'll' does not name a type
    9 | ll f(ll x, int c, int d) {
      | ^~
a.cc: In function 'int main()':
a.cc:17:9: error: 'll' was not declared in this scope
   17 |         ll a, b;
      |         ^~
a.cc:19:16: error: 'a' was not declared in this scope
   19 |         cin >> a >> b >> c >> d;
      |                ^
a.cc:19:21: error: 'b' was not declared in this scope
   19 |         cin >> a >> b >> c >> d;
      |                     ^
a.cc:20:11: error: expected ';' before 'ans'
   20 |         ll ans = f(b, c, d) - f(a - 1, c, d);
      |           ^~~~
      |           ;
a.cc:21:17: error: 'ans' was not declared in this scope; did you mean 'abs'?
   21 |         cout << ans << endl;
      |                 ^~~
      |                 abs
Language: C++

#include <iostream>
using namespace std;
/* a と b の最大公約数を返す関数 */
long long GCD(long long a, long long b) {
    if (b == 0) return a;
    else return GCD(b, a % b);
}
int f1(int X1,int C1,int D1){
  //int ans=0;
  int G1=GCD(C1,D1);
  int L1=C1*D1/G1;
  return X1-X1/C1-X1-/D1+X1/L1;
}
int main(){
  int A,B,C,D;cin>>A>>B>>C>>D;
  cout<<f1(B,C,D)-f1(A-1,C,D)<<endl;
}
  


Compiler output:
a.cc: In function 'int f1(int, int, int)':
a.cc:12:22: error: expected primary-expression before '/' token
   12 |   return X1-X1/C1-X1-/D1+X1/L1;
      |                      ^
Language: C++

#include <iostream>
using namespace std;
/* a と b の最大公約数を返す関数 */
long long GCD(long long a, long long b) {
    if (b == 0) return a;
    else return GCD(b, a % b);
}
int f1(int X1,int C1,int D1){
  //int ans=0;
  int G1=GCD(C1,D1);
  int L1=C1*D1/G1;
  return X1-X1/B1-X1-/D1+X1/L1;
}
int main(){
  int A,B,C,D;cin>>A>>B>>C>>D;
  cout<<f1(B,C,D)-f1(A-1,C,D)<<endl;
}
  


Compiler output:
a.cc: In function 'int f1(int, int, int)':
a.cc:12:16: error: 'B1' was not declared in this scope; did you mean 'L1'?
   12 |   return X1-X1/B1-X1-/D1+X1/L1;
      |                ^~
      |                L1
a.cc:12:22: error: expected primary-expression before '/' token
   12 |   return X1-X1/B1-X1-/D1+X1/L1;
      |                      ^
Language: C++

#include <iostream>
using namespace std;
/* a と b の最大公約数を返す関数 */
long long GCD(long long a, long long b) {
    if (b == 0) return a;
    else return GCD(b, a % b);
}
int f1(int X1,int C1,int D1){
  int ans=0;
  int G1=GCD(C1,D1);
  int L1=C1*D1/G1;  
  for (int i=0;i<X1;++i){
    if (i%C1!=0 && i%D1!=0)++ans;
  }
int main(){
  int A,B,C,D;cin>>A>>B>>C>>D;
  cout<<f1(A,C,D)-f1(B-1,C,D)<<endl;
}
  


Compiler output:
a.cc: In function 'int f1(int, int, int)':
a.cc:15:9: warning: empty parentheses were disambiguated as a function declaration [-Wvexing-parse]
   15 | int main(){
      |         ^~
a.cc:15:9: note: remove parentheses to default-initialize a variable
   15 | int main(){
      |         ^~
      |         --
a.cc:15:9: note: or replace parentheses with braces to value-initialize a variable
a.cc:15:11: error: a function-definition is not allowed here before '{' token
   15 | int main(){
      |           ^
a.cc:18:2: error: expected '}' at end of input
   18 | }
      |  ^
a.cc:8:29: note: to match this '{'
    8 | int f1(int X1,int C1,int D1){
      |                             ^
a.cc:18:2: warning: no return statement in function returning non-void [-Wreturn-type]
   18 | }
      |  ^
Language: C++

#include <iostream>
using namespace std;
/* a と b の最大公約数を返す関数 */
long long GCD(long long a, long long b) {
    if (b == 0) return a;
    else return GCD(b, a % b);
}
int f1(X1,C1,D1){
  int ans=0;
  int G1=GCD(C1,D1);
  int L1=C1*D1/G1;  
  for (int i=0;i<X1;++i){
    if (i%C1!=0 && i%D1!=0)++ans;
  }
int main(){
  int A,B,C,D;cin>>A>>B>>C>>D;
  cout<<f1(A,C,D)-f1(B-1,C,D)<<endl;
}
  

Compiler output:
a.cc:8:8: error: 'X1' was not declared in this scope; did you mean 'f1'?
    8 | int f1(X1,C1,D1){
      |        ^~
      |        f1
a.cc:8:11: error: 'C1' was not declared in this scope; did you mean 'f1'?
    8 | int f1(X1,C1,D1){
      |           ^~
      |           f1
a.cc:8:14: error: 'D1' was not declared in this scope; did you mean 'f1'?
    8 | int f1(X1,C1,D1){
      |              ^~
      |              f1
a.cc:8:16: error: expression list treated as compound expression in initializer [-fpermissive]
    8 | int f1(X1,C1,D1){
      |                ^
Language: C++

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

using vi=vector<int>;
using vvi=vector<vector<int>>;

int main(){
  long a,b,c,d,e;cin>>a>>b>>c>>d;
  e=c*d;
  long anc=b/c-(a-1)/c;
  long and=b/d-(a-1)/d;
  long ane=b/e-(a-1)/e;
  cout<<b-a+1-anc-and+ane<<endl;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:12:11: error: expected unqualified-id before '=' token
   12 |   long and=b/d-(a-1)/d;
      |           ^
a.cc:14:22: error: expected identifier before '+' token
   14 |   cout<<b-a+1-anc-and+ane<<endl;
      |                      ^
Language: Java


import java.util.Scanner;
import java.util.stream.LongStream;

/**
 * @author author
 *
 */
public class main {

  /**
   * @param args
   */
  public static void main(String[] args) {

    Scanner sc = new Scanner(System.in);
    long a = Integer.parseInt(sc.next());
    long b = Integer.parseInt(sc.next());
    long c = Integer.parseInt(sc.next());
    long d = Integer.parseInt(sc.next());

    System.out
        .println(
            LongStream.range(a, b + 1).filter(i -> i % c != 0).filter(i -> i % d != 0).count());
  }

}


Compiler output:
Main.java:9: error: class main is public, should be declared in a file named main.java
public class main {
       ^
1 error
Language: C++

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

int main(){
  long long int a,b,c,d;
  cin a >> b >> c >> d;
  long long int count = 0;
  
  for(long long int i=a;i<=b;i++){
    if(i%c != 0 && i%d != 0){
      count++;
    }
  }
  
  cout << count << endl;
  
  return 0;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:6:6: error: expected ';' before 'a'
    6 |   cin a >> b >> c >> d;
      |      ^~
      |      ;
Language: C++

#include <bits/stdc++.h>
using namespace std;
 
typedef vector<int> vi; 
typedef long long ll;

#define iN(x) int x;cin>>x;
#define iNll(x) ll x;cin>>x;
#define iNv(X,n) reP(ijk,n)cin>>X.at(ijk);
#define reP(i,end) reP(i,0,end)
#define reP2(i,start,end) int i;for(i=start;i<end;i++)
#define ouT(x) cout<<x;


int gcd(int a,int b){
      /* 自然数 a > b を確認・入替 */
  if(a<b){
    int tmp = a;
    a = b;
    b = tmp;
  }
 
  /* ユークリッドの互除法 */
  int r = a % b;
  while(r!=0){
    a = b;
    b = r;
    r = a % b;
  }

return b;
}

int lcm(int a,int b){
    return (a*b)/gcd(a,b);
}

int main(){
    iNll(A);iNll(B);iN(C);iN(D);
    ll count=0;
    
    ll c;ll d;ll cd;int l;
    c = B/C - A/C;
    if(A%C==0)c++;
    d = B/D - A/D;
    if(A%D==0)d++;
     
      = lcm(C,D);
    cd = B/l - A/l;
    if(A%l==0)cd++;
    
    count = B+1-A-(c+d-cd);
    ouT(count);
    ouT(endl);
    
}

Compiler output:
a.cc: In function 'int main()':
a.cc:48:7: error: expected primary-expression before '=' token
   48 |       = lcm(C,D);
      |       ^