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

#include<bits/stdc++.h>
int main()
{
    int a,b,c,i,ans=0;
    cin>>a>>b>>c;
    int s[a];
    for(i=0;i<a;i++)
    {
        cin>>s[i];
        if(s[i]<b||s[i]>=c)
            ans++;
    }
    cout<<ans<<endl;
    return 0;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:5:5: error: 'cin' was not declared in this scope; did you mean 'std::cin'?
    5 |     cin>>a>>b>>c;
      |     ^~~
      |     std::cin
In file included from /usr/include/x86_64-linux-gnu/c++/14/bits/stdc++.h:146,
                 from a.cc:1:
/usr/include/c++/14/iostream:62:18: note: 'std::cin' declared here
   62 |   extern istream cin;           ///< Linked to standard input
      |                  ^~~
a.cc:13:5: error: 'cout' was not declared in this scope; did you mean 'std::cout'?
   13 |     cout<<ans<<endl;
      |     ^~~~
      |     std::cout
/usr/include/c++/14/iostream:63:18: note: 'std::cout' declared here
   63 |   extern ostream cout;          ///< Linked to standard output
      |                  ^~~~
a.cc:13:16: error: 'endl' was not declared in this scope; did you mean 'std::endl'?
   13 |     cout<<ans<<endl;
      |                ^~~~
      |                std::endl
In file included from /usr/include/c++/14/istream:41,
                 from /usr/include/c++/14/sstream:40,
                 from /usr/include/c++/14/complex:45,
                 from /usr/include/c++/14/ccomplex:39,
                 from /usr/include/x86_64-linux-gnu/c++/14/bits/stdc++.h:127:
/usr/include/c++/14/ostream:744:5: note: 'std::endl' declared here
  744 |     endl(basic_ostream<_CharT, _Traits>& __os)
      |     ^~~~
Language: C++

#include <stdio.h>
int main()
{
    int a,b,c,i,ans=0;。
    scanf("%d%d%d",&a,&b,&c);
    int s[a];
    for(i=0;i<a;i++)
    {
        scanf("%d",&s[i]);
        if(s[i]<b||s[i]>=c)
            ans++;
    }
    printf("%d\n",ans);
}

Compiler output:
a.cc:4:23: error: extended character 。 is not valid in an identifier
    4 |     int a,b,c,i,ans=0;。
      |                       ^
a.cc: In function 'int main()':
a.cc:4:23: error: '\U00003002' was not declared in this scope
    4 |     int a,b,c,i,ans=0;。
      |                       ^~
Language: C++

#include<iostream>
#include<cstdio>
using namespace std;
int ans;
int main()
{
    int a,b,c;
    scanf("%d%d%d",&a,&b,&c);
    int n[10001];
    for(int i=1;i<=a;++i)
    {
        scanf("%d",&n[i])
        if(n[i]<b || n[i]>=c)
        {
            ans++;
        }
    }
    cout<<ans;
    cout<<endl;
    return 0;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:12:26: error: expected ';' before 'if'
   12 |         scanf("%d",&n[i])
      |                          ^
      |                          ;
   13 |         if(n[i]<b || n[i]>=c)
      |         ~~
Language: C++

#include<bits/stdc++.h>
using namespace std;
long long  e[100002];
int main()
{
  long long a,b,c,d=0;
  cin>>a>>b>>c;
  for(i=1;i<=a;i++)
  {
  	 cin>>e[i];
  	 if(e[i]<b||e[i]>=c)
  	   d++;
  }
   cout<<d;
  cout<<endl;		
} 

Compiler output:
a.cc: In function 'int main()':
a.cc:8:7: error: 'i' was not declared in this scope
    8 |   for(i=1;i<=a;i++)
      |       ^
Language: C++

#include<bits/stdc++.h>
using namespace std;
long long  a[100002];
int main()
{
  long long a,b,c,d=0;
  cin>>a>>b>>c;
  for(i=1;i<=a;i++)
  {
  	 cin>>a[i];
  	 if(a[i]<b||a[i]>=c)
  	   d++;
  }
   cout<<d;
  cout<<endl;		
} 

Compiler output:
a.cc: In function 'int main()':
a.cc:8:7: error: 'i' was not declared in this scope
    8 |   for(i=1;i<=a;i++)
      |       ^
Language: C++

#include<bits/stdc++.h>
using namespace std;
int ans;
int main(){
    std::ios::sync_with_stdio(false);
    int a,b,c;
    cin>>a>>b>>c;
    int d[10001];
    for(int i=1;i<=a;++i){
    cin>>d[i];
    if(d[i]<b||d[i]>=c){
        ans++;
    }
}
    cout<<ans<<endl;！
    return 0;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:15:21: error: '\U0000ff01' was not declared in this scope
   15 |     cout<<ans<<endl;！
      |                     ^~
Language: C++

#include<iostream>
#include<cstdio>
#include<cmath>
#include<algorithm>
using namespace std;
int main()
{
    long long n,a,b,c,d;
    cin>>n>>a>>b;
    for(int i=1;i<=n;i++)
    {
        cin>>c;
        if(c<a || c>=b)d++;
    }
    cout<<d<<endl
    return 0;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:15:18: error: expected ';' before 'return'
   15 |     cout<<d<<endl
      |                  ^
      |                  ;
   16 |     return 0;
      |     ~~~~~~
Language: C++

#include <stdio.h>
#include <algorithm>

using namespace std;

int n, a, b;
int t[1000];
int main() {
  
  scanf("%d %d %d", &n, &a, &b);
  
  for (int i = 0; i < n; i++)
    scanf("%d", t+i);
  sort(t, t+n);
  printf("%d", n- upper_bound(t, t+n, b-1) - lower_bound(t, t+n,a));
  
  
  return 0;
  
}


Compiler output:
a.cc: In function 'int main()':
a.cc:15:17: error: invalid operands of types 'int' and 'int*' to binary 'operator-'
   15 |   printf("%d", n- upper_bound(t, t+n, b-1) - lower_bound(t, t+n,a));
      |                ~^ ~~~~~~~~~~~~~~~~~~~~~~~~
      |                |             |
      |                int           int*
Language: C++

#include<bits/stdc++.h>
using namespace std;
int main()
{
   int a,b,c,d,i,o=0; 
   cin>>a>>b>>c;
   for (i=1;i<=a;i++)
    { cin>>d; if (d<b)||(d>=c) o=o+1;}
   cout<<o<<endl;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:8:23: error: expected primary-expression before '||' token
    8 |     { cin>>d; if (d<b)||(d>=c) o=o+1;}
      |                       ^~
Language: C++

#include<bits/stdc++.h>
using namespace std;
int a,b,c,d,e;
int main()
{
	cin>>a>>b>>c;
	for(register int i=0;i<a;i++)
	{
		cin>>d;
		d<b||d>=c?e++:;
	}
	cout<<e;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:7:26: warning: ISO C++17 does not allow 'register' storage class specifier [-Wregister]
    7 |         for(register int i=0;i<a;i++)
      |                          ^
a.cc:10:31: error: expected primary-expression before ';' token
   10 |                 d<b||d>=c?e++:;
      |                               ^
Language: C++

#include<iostream>
//#include<complex>
//#include<cstring>
//#include<algorithm>
#include<cstdio>
//#include<sec_api/stdio_s.h>
//#include<structuredquerycondition.h>
//#include<uiautomationcoreapi.h>
//#include<threadpoollegacyapiset.h>
//#include<_mingw_print_pop.h>
//#include<windows.security.cryptography.h>
#define R register
#define A 10010
//#define maxn 100010
//#define ll long long
#pragma GCC optimize(2)

using namespace std;

inline char GETCHAR()
{
	static char buf[A],*p1=buf,*p2=buf;
	return p1==p2 and (p2=(p1=buf)+fread(buf,1,A,stdin),p1==p2)?EOF:*p1++;
}
template <class T> void read(T &x)
{
	x=0;
	int flag=0;
	char ch=GETCHAR();
	while(!isdigit(ch))
	{
		flag|=ch=='-';
		ch=GETCHAR();
	}
	while(isdigit(ch))
	{
		x=(x<<3)+(x<<1)+(ch^48);
		ch=GETCHAR();
	}
	x=flag?-x:x;
	return;
}
inline void write(ll x)
{
	if(x<0)
	{
		x=-x;
		putchar('-');
	}
	if(x>9)
	  write(x/10);
	putchar(x%10+48);
}
int a,b,c,x,cnt;

int main()
{
	read(a);
	read(b);
	read(c);
	for(R int i=1;i<=a;i++)
	{
		read(x);
		if(x<b or x>=c)
		  cnt++;
	}
	write(cnt);
	cout<<'\n';
}

Compiler output:
a.cc:43:13: error: variable or field 'write' declared void
   43 | inline void write(ll x)
      |             ^~~~~
a.cc:43:19: error: 'll' was not declared in this scope
   43 | inline void write(ll x)
      |                   ^~
a.cc: In function 'int main()':
a.cc:61:19: warning: ISO C++17 does not allow 'register' storage class specifier [-Wregister]
   61 |         for(R int i=1;i<=a;i++)
      |                   ^
a.cc:67:9: error: 'write' was not declared in this scope; did you mean 'fwrite'?
   67 |         write(cnt);
      |         ^~~~~
      |         fwrite
Language: C++

#include<iostream>
#include<complex>
#include<cstring>
#include<algorithm>
#include<cstdio>
#include<sec_api/stdio_s.h>
#include<structuredquerycondition.h>
#include<uiautomationcoreapi.h>
#include<threadpoollegacyapiset.h>
#include<_mingw_print_pop.h>
//#include<windows.security.cryptography.h>
#define R register
#define A 10010
#define maxn 100010
#define ll long long
#pragma GCC optimize(2)

using namespace std;

inline char GETCHAR()
{
	static char buf[A],*p1=buf,*p2=buf;
	return p1==p2 and (p2=(p1=buf)+fread(buf,1,A,stdin),p1==p2)?EOF:*p1++;
}
template <class T> void read(T &x)
{
	x=0;
	int flag=0;
	char ch=GETCHAR();
	while(!isdigit(ch))
	{
		flag|=ch=='-';
		ch=GETCHAR();
	}
	while(isdigit(ch))
	{
		x=(x<<3)+(x<<1)+(ch^48);
		ch=GETCHAR();
	}
	x=flag?-x:x;
	return;
}
inline void write(ll x)
{
	if(x<0)
	{
		x=-x;
		putchar('-');
	}
	if(x>9)
	  write(x/10);
	putchar(x%10+48);
}
int a,b,c,x,cnt;

int main()
{
	read(a);
	read(b);
	read(c);
	for(int i=1;i<=a;i++)
	{
		read(x);
		if(x<b or x>=c)
		  cnt++;
	}
	write(cnt);
	cout<<'\n';
}

Compiler output:
a.cc:6:9: fatal error: sec_api/stdio_s.h: No such file or directory
    6 | #include<sec_api/stdio_s.h>
      |         ^~~~~~~~~~~~~~~~~~~
compilation terminated.
Language: C++

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

int n,x,sum,a,b;

int main()
{
	cin>>n>>b>>c;
	for (int i=1;i<=n;i++)
	{
		cin>>x;
		sum+=(x<b||x>=c);
	}
	cout<<sum<<endl;
	return 0;
}

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

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

int n,x,sum,a,b;

int main()
{
	cin>>n>>b>>c;
	for (int i=1;i<=n;i++)
	{
		cin>>x;
		sum+=(x<b||x>=c)
	}
	cout<<sum<<endl;
	return 0;
}

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

nums=gets.chomp.split(" ").map(&:to_i)
c=0
while(t=gets.chomp)
if t<nums[1] || t>nums[2]
c+=1
end
end

print c

Compiler output:
a.cc:1:1: error: 'nums' does not name a type
    1 | nums=gets.chomp.split(" ").map(&:to_i)
      | ^~~~
Language: C

#include<stdio.h>
2. 
3.int main(void){
4.	int n,a,b;
5.	int tmp;
6.	int i;
7.	int cnt=0;
8.	
9.	scanf("%d %d %d", &n,&a,&b);
10.	
11.	for(i = 0; i < n; i++){
12.		scanf("%d", &tmp);
13.		if(tmp <= a && tmp > b);
14.			cnt++;
15.	}
16.	printf("%d\n", cnt);
17.	return 0;
18.}


Compiler output:
main.c:2:1: error: expected identifier or '(' before numeric constant
    2 | 2.
      | ^~
main.c:3:1: error: invalid suffix "int" on floating constant
    3 | 3.int main(void){
      | ^~~~~
Language: C

#include<stdio.h>
2. 
3.int main(int){
4.	int n,a,b;
5.	int tmp;
6.	int i;
7.	int cnt=0;
8.	
9.	scanf("%d %d %d", &n,&a,&b);
10.	
11.	for(i = 0; i < n; i++){
12.		scanf("%d", &tmp);
13.		if(tmp <= a && tmp > b);
14.			cnt++;
15.	}
16.	printf("%d", cnt);
17.	return 0;
18.}


Compiler output:
main.c:2:1: error: expected identifier or '(' before numeric constant
    2 | 2.
      | ^~
main.c:3:1: error: invalid suffix "int" on floating constant
    3 | 3.int main(int){
      | ^~~~~
Language: Java

import java.io.*;

public class Main {

    public static void main(String[] args) {
        try {
            BufferedReader br = new BufferedReader(new InputStreamReader(System.in));
            String st = br.readLine();
            String[] s = st.split(" ", 0);
            int N = Integer.parseInt(s[0]);
            int A = Integer.parseInt(s[1]);
            int B = Integer.parseInt(s[2]);
            int j = 0;
            for(int i = 0; i < N; i++){
                Scanner sc = new Scanner(System.in);
                int x = sc.nextInt();
                if(x<A||B-1<x) j++;
            }
            System.out.println(j);
        } catch (IOException ex) {
        }
    }
}

Compiler output:
Main.java:15: error: cannot find symbol
                Scanner sc = new Scanner(System.in);
                ^
  symbol:   class Scanner
  location: class Main
Main.java:15: error: cannot find symbol
                Scanner sc = new Scanner(System.in);
                                 ^
  symbol:   class Scanner
  location: class Main
2 errors
Language: Java

package atcorder1610;

import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStreamReader;

public class KUPC2016A {

	public static void main(String[] args) {

		BufferedReader br = new BufferedReader(new InputStreamReader(System.in));

		String nab;
		try {
			nab = br.readLine();
			System.out.println(serch(nab));
		} catch (IOException e) {
			e.printStackTrace();
		}

	}

	public static int serch(String nab) {

		String[] strArray = nab.split(" ");

		int i = 0;

		int[] num = new int[3];

		for (String str : strArray) {
			num[i] = Integer.parseInt(str);
			i++;
		}

		int ans = num[0];

		BufferedReader br = new BufferedReader(new InputStreamReader(System.in));

		for (int j = 0; j < num[0]; j++) {
			int t;
			try {
				t = Integer.parseInt(br.readLine());
				if (num[1] <= t && t >= num[2]) {
					ans--;
				}
			} catch (Exception e) {
				e.printStackTrace();
			}
		}

		return ans;
	}

}


Compiler output:
Main.java:7: error: class KUPC2016A is public, should be declared in a file named KUPC2016A.java
public class KUPC2016A {
       ^
1 error
Language: Java

package atcorder1610;

public class KUPC2016 {

	public static void main(String[] args) {

		String nab = "5 4 9";
		int[] t = { 5, 6, 7, 8, 9 };

		System.out.println(serch(nab, t));

	}

	public static int serch(String nab, int[] t) {

		String[] strArray = nab.split(" ");

		int i = 0;

		int[] num = new int[3];

		for (String str : strArray) {
			num[i] = Integer.parseInt(str);
			i++;
		}

		int ans = num[0];

		for (int j = 0; j < num[0]; j++) {
			if (num[1] <= t[j] && t[j] >= num[2]) {
				ans--;
			}
		}

		return ans;
	}

}

Compiler output:
Main.java:3: error: class KUPC2016 is public, should be declared in a file named KUPC2016.java
public class KUPC2016 {
       ^
1 error
Language: C++

#include <iostream> 
#include <cstdio>
#include <map>

using namespace std;

#define For(i , a , b) for (int i = a , _b = b ; i <= _b ; ++i)
#define Ford(i , a  ,b) for (int i = a , _b = b : i >= _b ; --i)
#define Rep(i , n) for (int i = 0 , _n = n ; i < _n ; ++i)
#define sz(A) ((int)A.size())
#define LL(x) (x << 1)
#define RR(x) ((x << 1) | 1)

typedef pair<int , int> pt;

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

	int n , L , R; cin >> n >> L >> R; --R;
	For(i, 1, n) {
		int x; cin >> x;
		if (x < L || x > R) mp[x];
	}
	cout << sz(x) << endl;

	return 0;

}			

Compiler output:
a.cc: In function 'int main()':
a.cc:23:37: error: 'mp' was not declared in this scope
   23 |                 if (x < L || x > R) mp[x];
      |                                     ^~
a.cc:25:20: error: 'x' was not declared in this scope
   25 |         cout << sz(x) << endl;
      |                    ^
a.cc:10:21: note: in definition of macro 'sz'
   10 | #define sz(A) ((int)A.size())
      |                     ^
Language: C++

#include <iostream>
using namespace std;
void main()
{
int n,a,b;
cin>>n>>a>>b;
int c = 0;
for (int i=0;i<n;i++)
{
int x;cin >> x;
if (a<=x&&x<b) c++;
}
cout << n-c << endl;
}

Compiler output:
a.cc:3:1: error: '::main' must return 'int'
    3 | void main()
      | ^~~~
Language: C++

#include <bits/stdc++.h>
using namespace std;
int main(){
int n,a,b,t,c=0;
cin>>n>>a>>b;
while(cin>>t){
if(t>=b&&||t<=a){c++;}
}
cout<<c<<endl;
return 0;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:7:10: error: expected primary-expression before '||' token
    7 | if(t>=b&&||t<=a){c++;}
      |          ^~
Language: C++

#include <bits/stdc++.h>
using namespace std;
int main(){
int n,a,b,t,c=0;
cin>>n>>a>>b;
while(cin>>t){
if(t>=b&&||t<=a){c++;}
cout<<c<<endl;
return 0;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:7:10: error: expected primary-expression before '||' token
    7 | if(t>=b&&||t<=a){c++;}
      |          ^~
a.cc:10:2: error: expected '}' at end of input
   10 | }
      |  ^
a.cc:3:11: note: to match this '{'
    3 | int main(){
      |           ^
Language: C++

#include <bits/stdc++.h>
using namespace std;
int main(){
int n,a,b,t;
cin>>n>>a>>b;
while(cin>>t){
if(t>=b&&t<=a){c++;}
}
cout<<c<<endl;
return 0;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:7:16: error: 'c' was not declared in this scope
    7 | if(t>=b&&t<=a){c++;}
      |                ^
a.cc:9:7: error: 'c' was not declared in this scope
    9 | cout<<c<<endl;
      |       ^
Language: C++

#include<cstdio>
int main(){
  int n,a,b,an=0;
 scanf("%d%d%d,&n,&a,&b);
 for(int i=0;i<n;i++){
  int x;scanf("%d",&x);
  if(x<a||x>=b)an++;
 }
 printf("%d\n",an);
 return 0;
}

Compiler output:
a.cc:4:8: warning: missing terminating " character
    4 |  scanf("%d%d%d,&n,&a,&b);
      |        ^
a.cc:4:8: error: missing terminating " character
    4 |  scanf("%d%d%d,&n,&a,&b);
      |        ^~~~~~~~~~~~~~~~~~
a.cc: In function 'int main()':
a.cc:5:2: error: expected primary-expression before 'for'
    5 |  for(int i=0;i<n;i++){
      |  ^~~
a.cc:5:14: error: 'i' was not declared in this scope
    5 |  for(int i=0;i<n;i++){
      |              ^
Language: C++

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

#define REP(i,n) for(int i=0;i<n;i++)
#define rep(i,n) for(int i=0;i<n;i++)
#define INF 1<<29
#define LINF LLONG_MAX/3
#define MP make_pair
#define PB push_back
#define EB emplace_back
#define ALL(v) (v).begin(),(v).end()
#define debug(x) cerr<<#x<<":"<<x<<endl
#define debug2(x,y) cerr<<#x<<","<<#y":"<<x<<","<<y<<endl
#define CININIT cin.tie(0),ios::sync_with_stdio(false)
template<typename T> ostream& operator<<(ostream& os,const vector<T>& vec){ os << "["; for(const auto& v : vec){ os << v << ","; } os << "]"; return os; }

typedef long long ll;
typedef unsigned long long ull;
typedef pair<int,int> pii;
typedef vector<int> vi;
typedef vector<vi> vvi;

int main(){
    int N,A,B;
    cin>>N>>A>>B;
    ll ans=0;
    rep(i,N){
        int t;cin>>t;
        if(A<=t and t<B) continue;
        ans++;
    }
    cout << ans << endlg
}


Compiler output:
a.cc: In function 'int main()':
a.cc:32:20: error: 'endlg' was not declared in this scope
   32 |     cout << ans << endlg
      |                    ^~~~~
Language: C++

#include <iostream>
#include <vector>

using namespace std;

int N, A, B;
vector<int> t;

int search(int a){
	int l=0, r=N-1, m;
	for(int i=0; i<30; i++){
		m=(l+r)/2;
		if(t[m]<a){
			l=m;
		}else if(t[m]>a){
			r=m;
		}else{
			return m-1;
		}
	}
	return m;
}

int main(){
	cin>>N>>A>>B;
	N++;
	t.resize(N);
	t[0]=0;
	for(int i=1; i<N; i++){
		cin>>t[i];
	}
	sort(t.begin(), t.end());

	cout<<N-1-(search(B)-search(A))<<endl;

	return 0;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:32:9: error: 'sort' was not declared in this scope; did you mean 'short'?
   32 |         sort(t.begin(), t.end());
      |         ^~~~
      |         short
Language: C++

import Control.Monad( replicateM)
main = do
    [n,a,b] <- return . map read . words =<< getLine
    ts <- replicateM n readLn
    print . length $ [x| x<-ts, x<a || b<=x]

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

#include <iostream>
#include <iomanip>
#include <stdio.h>
#include <set>
#include <vector>
#include <map>
#include <cmath>
#include <algorithm>
#include <memory.h>
#include <string>
#include <sstream>
#include <cstdlib>
#include <ctime>
#include <cassert>
#include <queue>

using namespace std;

typedef long long LL;
typedef pair<int,int> PII;
typedef pair<PII,char> PIIC;

#define MP make_pair
#define PB push_back
#define FF first
#define SS second
#define DEBUG(X) { cout << #X << " = " << (X) << endl; }

#define FORN(i, n) for (int i = 0; i <  (int)(n); i++)
#define ALL(c) (c).begin(), (c).end()
#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 FOREACH(i, c) for (typeof((c).begin()) i = (c).begin(); i != (c).end(); i++)

#define MOD 1000000007
#define INF 2000000000

LL A, B, N, t, ans;
int main() {
    cin >> N >> A >> B;
    ans = 0LL;
    set<LL> classes;
    for (size_t i = 0; i < N; i ++){
	cin >> t;
	if (t < A || t >= B){
	    if (classes.find(t) == classes.end())
	    {
		classes.insert(t);
		ans ++;
	    }
	}
    }
    cout << ans;
    return 0;

Compiler output:
a.cc: In function 'int main()':
a.cc:54:14: error: expected '}' at end of input
   54 |     return 0;
      |              ^
a.cc:39:12: note: to match this '{'
   39 | int main() {
      |            ^
Language: C++

#include <iostream>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
 
int main()
{
	int N,A,B;
	int t;
	int num = 0;
 
	scanf("%d %d %d", &N, &A, &B);
 
	for (i = 0; i < N; i++)
	{
		std::cin >> t;
		if(t < A || t >= B)
		{
			++num;
		}
	}
 
	printf("%d\n", num);
	return 0;
}


Compiler output:
a.cc: In function 'int main()':
a.cc:14:14: error: 'i' was not declared in this scope
   14 |         for (i = 0; i < N; i++)
      |              ^
Language: C++

import java.io.BufferedReader;
import java.io.InputStreamReader;

public class Main {
    public static void main(String[] args) throws Exception {
        BufferedReader br = new BufferedReader(new InputStreamReader(System.in));
        String[] line = br.readLine().split(" ");
        int N = Integer.parseInt(line[0]);
        int blockStart = Integer.parseInt(line[1]);
        int blockEnd   = Integer.parseInt(line[2]);
        int attend = 0;
        for(int n=0;n<N;n++){
        	int classTime = Integer.parseInt(br.readLine());
        	if(classTime<blockStart || classTime>=blockEnd) attend++;
        }
        
        System.out.println(attend);
    }
}

Compiler output:
a.cc:1:1: error: 'import' does not name a type
    1 | import java.io.BufferedReader;
      | ^~~~~~
a.cc:1:1: note: C++20 'import' only available with '-fmodules-ts'
a.cc:2:1: error: 'import' does not name a type
    2 | import java.io.InputStreamReader;
      | ^~~~~~
a.cc:2:1: note: C++20 'import' only available with '-fmodules-ts'
a.cc:4:1: error: expected unqualified-id before 'public'
    4 | public class Main {
      | ^~~~~~
Language: C++

n,a,b = gets.split.map(&:to_i)
t = []
n.times { t << gets.to_i }
t.sort!

puts (t.bsearch_index{|x|x>=b}||n-1) - (t.bsearch_index{|x|x>=a}||0)

Compiler output:
a.cc:1:1: error: 'n' does not name a type
    1 | n,a,b = gets.split.map(&:to_i)
      | ^
a.cc:4:1: error: 't' does not name a type
    4 | t.sort!
      | ^
a.cc:6:31: error: expected unqualified-id before '||' token
    6 | puts (t.bsearch_index{|x|x>=b}||n-1) - (t.bsearch_index{|x|x>=a}||0)
      |                               ^~
a.cc:6:65: error: expected unqualified-id before '||' token
    6 | puts (t.bsearch_index{|x|x>=b}||n-1) - (t.bsearch_index{|x|x>=a}||0)
      |                                                                 ^~
Language: C++

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

int main(){
int N; cin >> N;
int A,B; cin >> A >> B;
int res = 0;
for(int i=0;i<N;i++){
int t; cin >> t;
if( A <= t && t < B ) continue;
res++;
}
cout << res << endl;
}

Compiler output:
a.cc:2:1: error: 'usingn' does not name a type
    2 | usingn namespace std;
      | ^~~~~~
a.cc: In function 'int main()':
a.cc:5:8: error: 'cin' was not declared in this scope; did you mean 'std::cin'?
    5 | int N; cin >> N;
      |        ^~~
      |        std::cin
In file included from /usr/include/x86_64-linux-gnu/c++/14/bits/stdc++.h:146,
                 from a.cc:1:
/usr/include/c++/14/iostream:62:18: note: 'std::cin' declared here
   62 |   extern istream cin;           ///< Linked to standard input
      |                  ^~~
a.cc:13:1: error: 'cout' was not declared in this scope; did you mean 'std::cout'?
   13 | cout << res << endl;
      | ^~~~
      | std::cout
/usr/include/c++/14/iostream:63:18: note: 'std::cout' declared here
   63 |   extern ostream cout;          ///< Linked to standard output
      |                  ^~~~
a.cc:13:16: error: 'endl' was not declared in this scope; did you mean 'std::endl'?
   13 | cout << res << endl;
      |                ^~~~
      |                std::endl
In file included from /usr/include/c++/14/istream:41,
                 from /usr/include/c++/14/sstream:40,
                 from /usr/include/c++/14/complex:45,
                 from /usr/include/c++/14/ccomplex:39,
                 from /usr/include/x86_64-linux-gnu/c++/14/bits/stdc++.h:127:
/usr/include/c++/14/ostream:744:5: note: 'std::endl' declared here
  744 |     endl(basic_ostream<_CharT, _Traits>& __os)
      |     ^~~~
Language: C++

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

signed main(void)
{
	int n, k;
	cin >> n >> k;
	vector<int> cnt(26, 0);
	rep(i, n) 
	{
		string p;
		cin >> p;
		cnt[p[0] - 'A'];
	}
	sort(cnt.rbegin(), cnt.rend());
	int ans = 0;
	while(true)
	{
		rep(i, k)
		{
			if (cnt[i] == 0)
			{
				cout << ans << endl;
				return 0;
			}
			cnt[i]--;
		}
		ans++;
		sort(cnt.rbegin(), r.end());
	}
	cout << ans << endl;
	return 0;
}


Compiler output:
a.cc: In function 'int main()':
a.cc:14:31: warning: ignoring return value of 'std::vector<_Tp, _Alloc>::reference std::vector<_Tp, _Alloc>::operator[](size_type) [with _Tp = int; _Alloc = std::allocator<int>; reference = int&; size_type = long unsigned int]', declared with attribute 'nodiscard' [-Wunused-result]
   14 |                 cnt[p[0] - 'A'];
      |                               ^
In file included from /usr/include/c++/14/vector:66,
                 from /usr/include/c++/14/functional:64,
                 from /usr/include/x86_64-linux-gnu/c++/14/bits/stdc++.h:53,
                 from a.cc:1:
/usr/include/c++/14/bits/stl_vector.h:1128:7: note: declared here
 1128 |       operator[](size_type __n) _GLIBCXX_NOEXCEPT
      |       ^~~~~~~~
a.cc:30:36: error: 'r' was not declared in this scope
   30 |                 sort(cnt.rbegin(), r.end());
      |                                    ^
Language: C++

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

signed main(void)
{
	int n, k;
	cin >> n >> k;
	vector<int> cnt(26, 0);
	rep(i, n) 
	{
		string p;
		cin >> p;
		cnt[p[0] - 'A'];
	}
	sort(cnt.rbegin(), r.end());
	int ans = 0;
	while(true)
	{
		rep(i, k)
		{
			if (cnt[i] == 0)
			{
				cout << ans << endl;
				return 0;
			}
			cnt[i]--;
		}
		ans++;
		sort(cnt.rbegin(), r.end());
	}
	cout << ans << endl;
	return 0;
}


Compiler output:
a.cc: In function 'int main()':
a.cc:14:31: warning: ignoring return value of 'std::vector<_Tp, _Alloc>::reference std::vector<_Tp, _Alloc>::operator[](size_type) [with _Tp = int; _Alloc = std::allocator<int>; reference = int&; size_type = long unsigned int]', declared with attribute 'nodiscard' [-Wunused-result]
   14 |                 cnt[p[0] - 'A'];
      |                               ^
In file included from /usr/include/c++/14/vector:66,
                 from /usr/include/c++/14/functional:64,
                 from /usr/include/x86_64-linux-gnu/c++/14/bits/stdc++.h:53,
                 from a.cc:1:
/usr/include/c++/14/bits/stl_vector.h:1128:7: note: declared here
 1128 |       operator[](size_type __n) _GLIBCXX_NOEXCEPT
      |       ^~~~~~~~
a.cc:16:28: error: 'r' was not declared in this scope
   16 |         sort(cnt.rbegin(), r.end());
      |                            ^
Language: C++

#include<bits/stdc++.h>
using namespace std;
int main () {
  int N, K;
  cin >> N >> K;
  vector<int>Pl(1e5, 0);
  for (int i = 0; i < N; i ++) {
    stiring S;
    cin >> S;
    Pl[(int)S[0]] ++;
  }
  sort(Pl.begin(), Pl.end());
  reverse(Pl.begin(), Pl.end());
  vector<int>KU(N, 0);
  int ans = 0;
  for (int i = 0; i < 26; i ++) {
    for (int j = 0; j < Pl[i]; j ++) {
      int k = ans + j;
      KU[k] ++;
    }
    while(KU[ans] == K) ans ++;
  }
  cout << ans << endl;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:8:5: error: 'stiring' was not declared in this scope; did you mean 'stdin'?
    8 |     stiring S;
      |     ^~~~~~~
      |     stdin
a.cc:9:12: error: 'S' was not declared in this scope
    9 |     cin >> S;
      |            ^
Language: C++

#include <iostream>
#include <vector>
#include <algorithm>
using namespace std;
int alp[26];
int main(){
 int n,k;cin>>n>>k;
  for(int i = 0; n > i; i++){
    string s;cin>>s;
    alp[s[0]-'A']++;
  }
  vector<int> a;
  for(int i = 0; 26 > i; i++){
    if(alp[i]){
      a.push_back(alp[i]);
    }
  }
  sort(a.begin(),a.end(),greater<int>());
  int ans = 0;
  while(a.size() >= k){
    for(int i = 0; k > i; i++)a[i]--;
    ans++;
    sort(a.begin(),a.end(),greater<int>());
    while(a.back() != 0)a.pop();
  }
  cout << ans << endl;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:24:27: error: 'class std::vector<int>' has no member named 'pop'
   24 |     while(a.back() != 0)a.pop();
      |                           ^~~
Language: C++

#include <bits/stdc++.h>
using namespace std;
#define rep(i,n) for(int i=0;i<n;i++)
int n,k,m[26],a=0,;
string s[10001];
priority_queue<int>q;
int main(){
	cin>>n>>k;
	rep(i,n){cin>>s[i];m[s[i][0]-'A']++;}
	rep(i,26)if(m[i])q.push(m[i]);
	while(q.size()>=k){
		rep(i,k){m[i]=q.top();q.pop();}
		rep(i,k)if(m[i]>1)q.push(m[i]-1);
		a++;
	}
	cout<<a<<endl;
	return 0;
}

Compiler output:
a.cc:4:19: error: expected unqualified-id before ';' token
    4 | int n,k,m[26],a=0,;
      |                   ^
Language: C++

#include <bits/stdc++.h>
using namespace std;
#define rep(i,n) for(int i=0;i<n;i++)
int n,k,m[26],a=0,;
string s[10001];
priority_queue<int>q;
int main(){
	cin>>n>>k;
	rep(i, n)cin>>s[i];m[s[i][0]-'A']++;
	rep(i,26)if(m[i])q.push(m[i]);
	while(q.size()>=k){
		rep(i,k)m[i]=q.top();q.pop();
		rep(i,k)if(m[i]>1)q.push(m[i]-1);
		a++;
	}
	cout<<a<<endl;
	return 0;
}

Compiler output:
a.cc:4:19: error: expected unqualified-id before ';' token
    4 | int n,k,m[26],a=0,;
      |                   ^
a.cc: In function 'int main()':
a.cc:9:32: error: 'i' was not declared in this scope
    9 |         rep(i, n)cin>>s[i];m[s[i][0]-'A']++;
      |                                ^
Language: C++

#include <iostream>
#include <string>
#include <queue>
#include <stack>
#include <algorithm>
#include <list>
#include <vector>
#include <complex>
#include <utility>
#include <cstdio>
#include <cstdlib>
#include <cstring>
#include <cmath>
#include <climits>
#include <bitset>
#include <ctime>
#include <map>
#include <unordered_map>
#include <set>
#include <unordered_set>
#include <cassert>
#include <cstddef>
#include <iomanip>
#include <numeric>
#include <tuple>
#include <sstream>
#include <fstream>

using namespace std;
#define REP(i, n) for (int (i) = 0; (i) < (n); (i)++)
#define FOR(i, a, b) for (int (i) = (a); (i) < (b); (i)++)
#define RREP(i, a) for(int (i) = (a) - 1; (i) >= 0; (i)--)
#define FORR(i, a, b) for(int (i) = (a) - 1; (i) >= (b); (i)--)
#define DEBUG(C) cerr << #C << " = " << C << endl;
using LL = long long;
using VI = vector<int>;
using VVI = vector<VI>;
using VL = vector<LL>;
using VVL = vector<VL>;
using VD = vector<double>;
using VVD = vector<VD>;
using PII = pair<int, int>;
using PDD = pair<double, double>;
using PLL = pair<LL, LL>;
using VPII = vector<PII>;
template<typename T> using VT = vector<T>;
#define ALL(a) begin((a)), end((a))
#define RALL(a) rbegin((a)), rend((a))
#define SORT(a) sort(ALL((a)))
#define RSORT(a) sort(RALL((a)))
#define REVERSE(a) reverse(ALL((a)))
#define MP make_pair
#define FORE(a, b) for (auto &&a : (b))
#define FIND(s, e) ((s).find(e) != (s).end())
#define EB emplace_back
template<typename T>chamx(T &a,T b){if(a<b){a=b;return true;}return false;}
template<typename T>chmin(T &a,T b){if(a>b){a=b;return true;}return false;}

const int INF = 1e9;
const int MOD = INF + 7;
const LL LLINF = 1e18;

int N, K;
char P[20][1010];
map<char, vector<int>> mp;

int main(void) {
    scanf("%d%d", &N, &K);
    for (int i  = 0; i < N; i++) {
        scanf("%s", P + i);
        mp[P[i][0]].emplace_back(i);
    }
    for (int i = 0; i < N; i++) {
        int cnt = 0;
        for (char c = 'A'; c <= 'z'; c++) {
            int nokori = K;
            if (mp[c].size()) {
                mp[c].pop_back();
                if (--nokori) break;
            }
            if (nokori) {
                cout << i << endl;
                return 0;
            }
        }
    }
    cout << 0 << endl;
}


Compiler output:
a.cc:56:21: error: ISO C++ forbids declaration of 'chamx' with no type [-fpermissive]
   56 | template<typename T>chamx(T &a,T b){if(a<b){a=b;return true;}return false;}
      |                     ^~~~~
a.cc:57:21: error: ISO C++ forbids declaration of 'chmin' with no type [-fpermissive]
   57 | template<typename T>chmin(T &a,T b){if(a>b){a=b;return true;}return false;}
      |                     ^~~~~
Language: Java


import java.util.Arrays;
import java.util.LinkedList;
import java.util.Scanner;

public class Committee {
	public static void main(String[] args) {
		Scanner in = new Scanner(System.in);
		int N = in.nextInt();
		int K = in.nextInt();
		in.nextLine();
		String[] P = new String[N];
		for (int i = 0; i < P.length; i++) {
			P[i] = in.nextLine();
		}
		
		int res = 0;
		LinkedList<Character> cur = new LinkedList<Character>() ;
		
		Arrays.sort(P);
		for (int i = 0; i < P.length; i++) {
			if (i<P.length-1&&P[i].equals(P[i+1])) {
				P[i]=null;
				continue;
			}
		}
		
		for (int i = 0; i < P.length; i++) {		
			if (P[i]!=null) {
				Character tmp = P[i].toLowerCase().charAt(0);
				if (!cur.contains(tmp)) {
					cur.add(tmp);
					P[i] = null;
					if (cur.size()==K) {
						i = res;
						res++;
						while (cur.size()!=0) {
							cur.remove(cur.size()-1);
						}						
					}
				}
			}else{
				continue;
			}			
		}
			
		System.out.println(res);
	}
}


Compiler output:
Main.java:6: error: class Committee is public, should be declared in a file named Committee.java
public class Committee {
       ^
1 error
Language: C++

#include <cstdlib>
#include <cmath>
#include <climits>
#include <cfloat>
#include <map>
#include <set>
#include <iostream>
#include <string>
#include <vector>
#include <algorithm>
#include <sstream>
#include <complex>
#include <stack>
#include <queue>
#include <cstdio>
#include <cstring>
#include <iterator>
#include <bitset>
#include <unordered_set>
#include <unordered_map>
#include <fstream>
#include <iomanip>
#include <cassert>
//#include <utility>
//#include <memory>
//#include <functional>
//#include <deque>
//#include <cctype>
//#include <ctime>
//#include <numeric>
//#include <list>
//#include <iomanip>

//#if __cplusplus >= 201103L
//#include <array>
//#include <tuple>
//#include <initializer_list>
//#include <forward_list>
//
//#define cauto const auto&
//#else

//#endif

using namespace std;


typedef long long ll;
typedef pair<int,int> pii;
typedef pair<ll,ll> pll;

typedef vector<int> vint;
typedef vector<vector<int> > vvint;
typedef vector<long long> vll, vLL;
typedef vector<vector<long long> > vvll, vvLL;

#define VV(T) vector<vector< T > >

template <class T>
void initvv(vector<vector<T> > &v, int a, int b, const T &t = T()){
    v.assign(a, vector<T>(b, t));
}

template <class F, class T>
void convert(const F &f, T &t){
    stringstream ss;
    ss << f;
    ss >> t;
}

#undef _P
#define _P(...) (void)printf(__VA_ARGS__)
#define reep(i,a,b) for(int i=(a);i<(b);++i)
#define rep(i,n) reep((i),0,(n))
#define ALL(v) (v).begin(),(v).end()
#define PB push_back
#define F first
#define S second
#define mkp make_pair
#define RALL(v) (v).rbegin(),(v).rend()
#define DEBUG
#ifdef DEBUG
#define dump(x)  cout << #x << " = " << (x) << endl;
#define debug(x) cout << #x << " = " << (x) << " (L" << __LINE__ << ")" << " " << __FILE__ << endl;
#else
#define dump(x) 
#define debug(x) 
#endif

#define MOD 1000000007LL
#define EPS 1e-8
#define INF 0x3f3f3f3f
#define INFL 0x3f3f3f3f3f3f3f3fLL
#define maxs(x,y) x=max(x,y)
#define mins(x,y) x=min(x,y)

void mainmain(){
	int n,K;
	cin>>n>>K;
	vint cnt(26);
	rep(i,n){
		string s;
		cin>>s;
		cnt[s[i]-'A']++;
	}
	sort(ALL(cnt));
	reverse(ALL(cnt));
	int m = v[0];
	while(1){
		if(m*K<=n){
			cout<<m<<endl;
			return;
		}
		m--;
	}
}


signed main() {
    ios_base::sync_with_stdio(false);
    cin.tie(0);
    cout<<fixed<<setprecision(20);
    mainmain();
}

Compiler output:
a.cc: In function 'void mainmain()':
a.cc:108:17: error: 'v' was not declared in this scope
  108 |         int m = v[0];
      |                 ^
Language: C++

#include <bits/stdc++.h>

using namespace std;

int co[256];
int n,k;
string arr[10004];

int get()
{
    int i;
    int ans=0;
    for(i=0;i<255;i++)
        if(!co[i])
            return i;
}

void del()
{
    int i;
    for(i=0;i<k&;i++)
    {
        co[i]--;
    }
}

int main()
{
    cin >> n >> k;
    int i;
    for(i=0;i<n;i++)
    {
        cin >> arr[i];
        co[arr[i][0]]++;
    }
    int ans=0;
    while(1)
    {
        sort(co,co+n);
        reverse(co,co+n);
        if(get()>=k)
        {
            ans++;
            del();
        }
        else
        {
            break;
        }
    }
    cout << ans << endl;
}


Compiler output:
a.cc: In function 'void del()':
a.cc:21:17: error: expected primary-expression before ';' token
   21 |     for(i=0;i<k&;i++)
      |                 ^
a.cc: In function 'int get()':
a.cc:16:1: warning: control reaches end of non-void function [-Wreturn-type]
   16 | }
      | ^
Language: Java

import java.util.Scanner;
import java.util.Arrays;

public class Main{
	public static void main(String[] args) {
		Scanner sc = new Scanner(System.in);
		int n = sc.nextInt();
		int k = sc.nextInt();
		int[] initial = new int[26];

		for(int i=0; i<n; i++){
			String s = sc.next();
			initial[s.charAt(0)-'A']++;
		}

		Arrays.sort(initial);

		if((n%k==0)? n/k : (n/k)+1 <= initial[25]){
			System.out.println(0);
		}else{
			System.out.println(n/k);
		}
	}
}

Compiler output:
Main.java:18: error: incompatible types: INT#1 cannot be converted to boolean
		if((n%k==0)? n/k : (n/k)+1 <= initial[25]){
		           ^
  where INT#1,INT#2 are intersection types:
    INT#1 extends Object,Serializable,Comparable<? extends INT#2>,Constable
    INT#2 extends Object,Serializable,Comparable<?>,Constable
1 error
Language: C++

#include<iostream>
#include<cstdio>
#include<cstdlib>
#include<cstring>
using namespace std;
int main()
{
    string c,s;
    int n,k,q[101]={},sum=0,x,ans=0;
    ios::sync_with_stdio(false);
    cin>>n>>k;
    for (int i=1; i<=n; i++)
    {
        cin>>c;
        q[c[0]]++;
        sum++;
        //cout<<c[0]<<endl;
    }
    //for (int i=65; i<=90; i++)
    //    cout<<q[i]<<endl;
    while (sum>0)
    {
        x=0;
        sort(begin(q),end(q),greater<int>());
        for (int i=0; i<k; i++)
        {
            x++;
            q[i]--;
            sum--;
                //cout<<sum<<endl;
            if (x==k)
            {
                ans++;
                    //cout<<ans<<endl;
                break;
            }
        }
    }
    cout<<ans<<endl;
    return 0;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:24:9: error: 'sort' was not declared in this scope; did you mean 'short'?
   24 |         sort(begin(q),end(q),greater<int>());
      |         ^~~~
      |         short
Language: C++

#include <iostream>
#include <cstdio>
#include <cstdlib>
#include <cstring>
#include <vector>
using namespace std;

int n,k,q[101]={},ans=0;
int main(){
	string c,s;
	cin >> n >> k;
	for(int i = 1; i <= n; i++){
		cin >> c;
		q[c[0]]++;
	}
	while(1){
		sort(begin(q),end(q),greater<int>());
		if(q[k-1]==0) break;
		for(int i = 0; i < k; i++){
			q[i]--;
		}
		ans++;
	}
	cout << ans << endl;
	return 0;
}


Compiler output:
a.cc: In function 'int main()':
a.cc:17:17: error: 'sort' was not declared in this scope; did you mean 'short'?
   17 |                 sort(begin(q),end(q),greater<int>());
      |                 ^~~~
      |                 short
Language: C++

/*************************************************************************
     File Name: B.cpp
     ID: obsoles1
     BLOG: blog.csdn.net/obsolescence
     LANG: C++ 
     Mail: 384099319@qq.com 
     Created Time: 日 10/ 2 13:48:09 2016
 ************************************************************************/
#define MAX(x,y) ((x)>(y)?(x):(y))
#define MIN(x,y) ((x)<(y)?(x):(y))
#define EACH(it,v) for(__typeof((v).begin()) it=(v).begin();it!=(v).end();++it)
#define ABS(x,y) ((x)>(y)?((x)-(y)):((y)-(x)))
#define MEM0(x) memset(x,0,sizeof(x))
#define MEM1(x) memset(x,-1,sizeof(x))
#define MEMX(x) memset(x,0x3f,sizeof(x))
#define pb push_back
#include<iostream>
#include<set>
#include<string>

using namespace std;
const int N=1e4+10;
set<string> my_set;
string ss[N];
int cnt[30];

int main() {
  int n,nn,k,i,j;
  string s;
  cin>>n>>k;
  for (i=j=0; i<n; ++i) {
    cin>>s;
    if (!my_set.count(s)) {
      my_set.insert(s);
      ss[j++]=s;
    }
  }
  n=j;
  for (i=0; i<n; ++i)
    cnt[ss[i][0]-'A']++;
  //cout<<"n="<<n<<endl;
  sort(cnt,cnt+26,greater<int>());
  int low=0,high=n/k,mid,ans;
  while (low<=high) {
    mid=(low+high)>>1;
    //cout<<"----mid="<<mid<<endl;
    int tmp=0,pre=0;
    for (i=0; i<26 && tmp<k; ++i) {
      if (cnt[i]+pre>=mid)
        tmp++,pre=MIN(mid,cnt[i])+pre-mid;
      else pre+=cnt[i];
      //cout<<"tmp="<<tmp<<endl;
    }
    if (tmp>=k) low=mid+1,ans=mid;
    else high=mid-1;
  }
  cout<<ans<<endl;
}


Compiler output:
a.cc: In function 'int main()':
a.cc:42:3: error: 'sort' was not declared in this scope; did you mean 'short'?
   42 |   sort(cnt,cnt+26,greater<int>());
      |   ^~~~
      |   short
Language: C++

//先頭の文字以外は必要ない。先頭の文字の個数をcnt[i]などで持ち、残り数が多いほうから使っていく。(未証明)

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

int n, k;
string p[10000];
int cnt[26];

int main() {
	int i, j;
	
	cin >> n >> k;
	for (i = 0; i < n; i++) {
		cin >> p[i];
		cnt[p[i][0] - 'A']++;
	}
	
	for (i = 0; ; i++) {
		sort(cnt, cnt + 26);
		if (cnt[k - 1] <= 0) break;
		for (j = 0; j < k; j++) cnt[j]--;
	}
	cout << i << endl;
	return 0;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:21:17: error: 'sort' was not declared in this scope; did you mean 'short'?
   21 |                 sort(cnt, cnt + 26);
      |                 ^~~~
      |                 short
Language: C++

//先頭の文字以外は必要ない。先頭の文字の個数をcnt[i]などで持ち、残り数が多いほうから使っていく。(未証明)

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

int n, k;
string p[10000];
int cnt[26];

int main() {
	int i, j;
	
	cin >> n >> k;
	for (i = 0; i < n; i++) {
		cin >> p[i];
		cnt[p[i] - 'A']++;
	}
	
	for (i = 0; ; i++) {
		sort(cnt, cnt + 26);
		if (cnt[k - 1] <= 0) break;
		for (j = 0; j < k; j++) cnt[j]--;
	}
	cout << i << endl;
	return 0;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:17:26: error: no match for 'operator-' (operand types are 'std::string' {aka 'std::__cxx11::basic_string<char>'} and 'char')
   17 |                 cnt[p[i] - 'A']++;
      |                     ~~~~ ^ ~~~
      |                        |   |
      |                        |   char
      |                        std::string {aka std::__cxx11::basic_string<char>}
In file included from /usr/include/c++/14/string:48,
                 from /usr/include/c++/14/bits/locale_classes.h:40,
                 from /usr/include/c++/14/bits/ios_base.h:41,
                 from /usr/include/c++/14/ios:44,
                 from /usr/include/c++/14/ostream:40,
                 from /usr/include/c++/14/iostream:41,
                 from a.cc:3:
/usr/include/c++/14/bits/stl_iterator.h:618:5: note: candidate: 'template<class _IteratorL, class _IteratorR> constexpr decltype ((__y.base() - __x.base())) std::operator-(const reverse_iterator<_Iterator>&, const reverse_iterator<_IteratorR>&)'
  618 |     operator-(const reverse_iterator<_IteratorL>& __x,
      |     ^~~~~~~~
/usr/include/c++/14/bits/stl_iterator.h:618:5: note:   template argument deduction/substitution failed:
a.cc:17:28: note:   'std::string' {aka 'std::__cxx11::basic_string<char>'} is not derived from 'const std::reverse_iterator<_Iterator>'
   17 |                 cnt[p[i] - 'A']++;
      |                            ^~~
/usr/include/c++/14/bits/stl_iterator.h:1790:5: note: candidate: 'template<class _IteratorL, class _IteratorR> constexpr decltype ((__x.base() - __y.base())) std::operator-(const move_iterator<_IteratorL>&, const move_iterator<_IteratorR>&)'
 1790 |     operator-(const move_iterator<_IteratorL>& __x,
      |     ^~~~~~~~
/usr/include/c++/14/bits/stl_iterator.h:1790:5: note:   template argument deduction/substitution failed:
a.cc:17:28: note:   'std::string' {aka 'std::__cxx11::basic_string<char>'} is not derived from 'const std::move_iterator<_IteratorL>'
   17 |                 cnt[p[i] - 'A']++;
      |                            ^~~
a.cc:21:17: error: 'sort' was not declared in this scope; did you mean 'short'?
   21 |                 sort(cnt, cnt + 26);
      |                 ^~~~
      |                 short
Language: C++

#include<cstdio>
#include<cstring>
#include<vector>
#include<queue>
#include<algorithm>
#include<cmath>
#include<climits>
#include<string>
#include<set>
#include<map>
#include<iostream>
using namespace std;
#define rep(i,n) for(int i=0;i<((int)(n));i++)
#define reg(i,a,b) for(int i=((int)(a));i<=((int)(b));i++)
#define irep(i,n) for(int i=((int)(n))-1;i>=0;i--)
#define ireg(i,a,b) for(int i=((int)(b));i>=((int)(a));i--)
typedef long long int lli;
typedef pair<int,int> mp;

int n,k;
char p[2000][20];
char a[30];
int main(){

  scanf("%d%d",&n,&k);
  rep(i,n) {
    scanf("%s",p[i]);
    a[p[i][0]]++;
  }

  int res=0;
  int flg=1;
  while(flg){
    int cur=0;
    rep(i,0,'Z'-'A'){
      if(cur==3){
        res++;
        break;
      }
      if(a[i+'A']>0 && cur<3){
        cur++;
        a[i+'A']--;
      }
    }
    if(cur<3) break;
  }

  printf("%d\n",res);

  return 0;

}


Compiler output:
a.cc:35:20: error: macro "rep" passed 3 arguments, but takes just 2
   35 |     rep(i,0,'Z'-'A'){
      |                    ^
a.cc:13:9: note: macro "rep" defined here
   13 | #define rep(i,n) for(int i=0;i<((int)(n));i++)
      |         ^~~
a.cc: In function 'int main()':
a.cc:35:5: error: 'rep' was not declared in this scope
   35 |     rep(i,0,'Z'-'A'){
      |     ^~~
Language: C++

#include<stdio.h>
#include<string.h>
#include<math.h>
#include<algorithm>
using namespace std;


int main()
{
    char s[105];
    int a[27];
    memset(a,0,sizeof(a));
    int i,n,k,minn=0,num=0,j=0,ans=0;
    scanf("%d%d",&n,&k);
    getchar();
    for(i=0;i<n;i++)
    {
        gets(s);
        a[s[0]-65]++;
    }
    for(i=0;i<26;i++)
    {
        if(a[i]!=0){num++;minn=min(minn,a[i]);}
    }
    if(num<k){printf("0\n");return 0;}
    sort(a,a+26);
    for(i=0;i<26;i++)
    {
        if(a[i]!=0){j=i;break;}
    }
    while(num>=k)
    {
        ans+=a[j++];
        num--;
    }
    printf("%d\n",ans);
}


Compiler output:
a.cc: In function 'int main()':
a.cc:18:9: error: 'gets' was not declared in this scope; did you mean 'getw'?
   18 |         gets(s);
      |         ^~~~
      |         getw
Language: C++

#include <bits/stdc++.h>
#include <cstring>
using namespace std;
int vis[100][26]={0};
int isfull[1000]={0};

int main() {
    int n,k;
    char tmp[15];
    cin>>n>>k;
    int tol=1;
    getchar();
    while(n--)
    {
        bool f=0;
        gets(tmp);
        for(int i=1;i<=tol;i++)
        {
            if(!vis[i][tmp[0]-'A']&&isfull[i]<k)
            {
                vis[i][tmp[0]-'A']=1;
                isfull[i]++;
                f=1;
                break;
            }
        }
        if(f==0)
        {
            tol++;
            vis[tol][tmp[0]-'A']=1;
            isfull[tol]++;
        }
    }
    int ans=0;
    for(int i=1;i<=tol;i++)
    {
        if(isfull[i]==k)ans++;
    }
   // for(int i=1;i<=tol;i++)cout<<isfull[i]<<" ";cout<<endl;
    cout<<ans<<endl;
    //cout<<tol<<endl;
    return 0;
}


Compiler output:
a.cc: In function 'int main()':
a.cc:16:9: error: 'gets' was not declared in this scope; did you mean 'getw'?
   16 |         gets(tmp);
      |         ^~~~
      |         getw