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

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

int main(){
  int N,M; cin >> N >> M;
  char A[5];
  int ans = 0;
  for(int i=N;i<=M;i++){
    A[] = (string)"i";
    if(A[0] == A[4] && A[1] == A[3]) 
    ans++;
  }
  cout << ans << endl;
}
    

Compiler output:
a.cc: In function 'int main()':
a.cc:9:7: error: expected primary-expression before ']' token
    9 |     A[] = (string)"i";
      |       ^
Language: C++

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

int main(){
  int N,M; cin >> N >> M;
  char A[5];
  int ans = 0;
  for(int i=N;i<=M;i++){
    A = "i";
    if(A[0] == A[4] && A[1] == A[3]) 
    ans++;
  }
  cout << ans << endl;
}
    

Compiler output:
a.cc: In function 'int main()':
a.cc:9:7: error: incompatible types in assignment of 'const char [2]' to 'char [5]'
    9 |     A = "i";
      |     ~~^~~~~
Language: C++

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

int main(){
  int N,M; cin >> N >> M;
  char A[5];
  int ans = 0;
  for(int i=N;i<=M;i++){
    A = (char)i;
    if(A[0] == A[4] && A[1] == A[3]) 
    ans++;
  }
  cout << ans << endl;
}
    

Compiler output:
a.cc: In function 'int main()':
a.cc:9:7: error: incompatible types in assignment of 'char' to 'char [5]'
    9 |     A = (char)i;
      |     ~~^~~~~~~~~
Language: C++

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

int main(){
  int N,M; cin >> N >> M;
  char A[5];
  int ans = 0;
  for(int i=N;i<=M;i++){
    A = i;
    if(A[0] == A[4] && A[1] == A[3]) 
    ans++;
  }
  cout << ans << endl;
}
    

Compiler output:
a.cc: In function 'int main()':
a.cc:9:7: error: incompatible types in assignment of 'int' to 'char [5]'
    9 |     A = i;
      |     ~~^~~
Language: Java

public class Main {

	public static void main(String[] args) throws IOException {
		BufferedReader br = new BufferedReader(new InputStreamReader(System.in));
		String[] tmp = br.readLine().split(" ");
		String A = tmp[0];
		String B = tmp[1];

		int ans = 0;
		for(int i = Integer.parseInt(A);i<=Integer.parseInt(B);i++){
			if(kaibun(String.valueOf(i)))ans++;
		}
		System.out.println(ans);
	}

	static boolean kaibun(String n){
		char a = n.charAt(0);
		char b = n.charAt(1);
		char aa = n.charAt(4);
		char bb = n.charAt(3);

		if(a == aa && b == bb)return true;
		else return false;
	}

}


Compiler output:
Main.java:3: error: cannot find symbol
	public static void main(String[] args) throws IOException {
	                                              ^
  symbol:   class IOException
  location: class Main
Main.java:4: error: cannot find symbol
		BufferedReader br = new BufferedReader(new InputStreamReader(System.in));
		^
  symbol:   class BufferedReader
  location: class Main
Main.java:4: error: cannot find symbol
		BufferedReader br = new BufferedReader(new InputStreamReader(System.in));
		                        ^
  symbol:   class BufferedReader
  location: class Main
Main.java:4: error: cannot find symbol
		BufferedReader br = new BufferedReader(new InputStreamReader(System.in));
		                                           ^
  symbol:   class InputStreamReader
  location: class Main
4 errors
Language: C++

<bits/stdc++.h>
using namespace std;
 
int main() {
 int A,B,sum;
  sum=0;
  cin >> A >> B;
  for(;A<=B;A++){
  	int a,b;
    a=A%100;
    b=A/1000;
    if(a==b){
      sum++;
    }
  }
  cout << sum << endl;
}

Compiler output:
a.cc:1:1: error: expected unqualified-id before '<' token
    1 | <bits/stdc++.h>
      | ^
a.cc: In function 'int main()':
a.cc:7:3: error: 'cin' was not declared in this scope
    7 |   cin >> A >> B;
      |   ^~~
a.cc:16:3: error: 'cout' was not declared in this scope
   16 |   cout << sum << endl;
      |   ^~~~
a.cc:16:18: error: 'endl' was not declared in this scope
   16 |   cout << sum << endl;
      |                  ^~~~
Language: C++

<bits/stdc++.h>
using namespace std;
 
int main() {
 int A.B,sum;
  sum=0;
  cin >> A >> B;
  for(;A<=B;A++){
  	int a,b;
    a=A%100;
    b=a/1000;
    if(a==b){
      sum++;
    }
  }
  cout << sum << endl;
}

Compiler output:
a.cc:1:1: error: expected unqualified-id before '<' token
    1 | <bits/stdc++.h>
      | ^
a.cc: In function 'int main()':
a.cc:5:7: error: expected initializer before '.' token
    5 |  int A.B,sum;
      |       ^
a.cc:6:3: error: 'sum' was not declared in this scope
    6 |   sum=0;
      |   ^~~
a.cc:7:3: error: 'cin' was not declared in this scope
    7 |   cin >> A >> B;
      |   ^~~
a.cc:7:10: error: 'A' was not declared in this scope
    7 |   cin >> A >> B;
      |          ^
a.cc:7:15: error: 'B' was not declared in this scope
    7 |   cin >> A >> B;
      |               ^
a.cc:16:3: error: 'cout' was not declared in this scope
   16 |   cout << sum << endl;
      |   ^~~~
a.cc:16:18: error: 'endl' was not declared in this scope
   16 |   cout << sum << endl;
      |                  ^~~~
Language: C++

#include <bits/stdc++.h>
using namespace std;
int main(){
  intA,B;
  cin>>A>>B;
  int a,b,d,e,s;
  s=0;
  for(int i=A;i<=B;i++){
    b=i/1000%10;
    d=i/100%10;
    if(b!=d) continue;
    a=i/10000;
    e=i%10;
    if(a==e) s++;
  }
}


Compiler output:
a.cc: In function 'int main()':
a.cc:4:3: error: 'intA' was not declared in this scope; did you mean 'int'?
    4 |   intA,B;
      |   ^~~~
      |   int
a.cc:4:8: error: 'B' was not declared in this scope
    4 |   intA,B;
      |        ^
a.cc:5:8: error: 'A' was not declared in this scope
    5 |   cin>>A>>B;
      |        ^
Language: C++

#include<iostream>
using namespace std;
int main(){
  int a,b;
  int ans = 0;
  for(int i = a;i <=b;i++) {
  	int tmp[5];
    for(int i = 0;i < 5;i++){
    	tmp[i] = a%10;
      	a/=10;
    }
    if(a[0] == a[4] && a[1] == a[3]){ans++;}
  }
  cout << ans << endl;
      
}

Compiler output:
a.cc: In function 'int main()':
a.cc:12:9: error: invalid types 'int[int]' for array subscript
   12 |     if(a[0] == a[4] && a[1] == a[3]){ans++;}
      |         ^
a.cc:12:17: error: invalid types 'int[int]' for array subscript
   12 |     if(a[0] == a[4] && a[1] == a[3]){ans++;}
      |                 ^
a.cc:12:25: error: invalid types 'int[int]' for array subscript
   12 |     if(a[0] == a[4] && a[1] == a[3]){ans++;}
      |                         ^
a.cc:12:33: error: invalid types 'int[int]' for array subscript
   12 |     if(a[0] == a[4] && a[1] == a[3]){ans++;}
      |                                 ^
Language: Java


package tuika;


import java.util.Scanner;



public class Tuika{
	public static void main(String[] args) {
		// TODO 自動生成されたメソッド・スタブ
		Scanner s = new Scanner(System.in);
		int num=s.nextInt();
		int nu=s.nextInt();
		int r=0;
		for(int i=num;i<=nu;i++) {
			String stri = String.valueOf(i);
		char a=stri.charAt(0);
		char b=stri.charAt(1);
		char c=stri.charAt(4);
		char d=stri.charAt(3);
		if(a==c &&b==d) {
			r++;
		}
	}
		System.out.print(r);
	}
}


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

import java.util.Scanner;



public class Tuika{
	public static void main(String[] args) {
		// TODO 自動生成されたメソッド・スタブ
		Scanner s = new Scanner(System.in);
		int num=s.nextInt();
		int nu=s.nextInt();
		int r=0;
		for(int i=num;i<=nu;i++) {
			String stri = String.valueOf(i);
		char a=stri.charAt(0);
		char b=stri.charAt(1);
		char c=stri.charAt(4);
		char d=stri.charAt(3);
		if(a==c &&b==d) {
			r++;
		}
	}
		System.out.print(r);
	}
}


Compiler output:
Main.java:5: error: class Tuika is public, should be declared in a file named Tuika.java
public class Tuika{
       ^
1 error
Language: Java

import java.util.Scanner;



public class Tuika {

	public static void main(String[] args) {
		// TODO 自動生成されたメソッド・スタブ
		Scanner s = new Scanner(System.in);
		int num=s.nextInt();
		int nu=s.nextInt();
		int r=0;
		for(int i=num;i<=nu;i++) {
			
			String stri = String.valueOf(i);

		char a=stri.charAt(0);
		char b=stri.charAt(1);
		char c=stri.charAt(4);
		char d=stri.charAt(3);
		if(a==c &&b==d) {
			r++;
			
		}
	}
		System.out.print(r);
	}
}

Compiler output:
Main.java:5: error: class Tuika is public, should be declared in a file named Tuika.java
public class Tuika {
       ^
1 error
Language: Java

/**
 *
 */
package tuika;


import java.util.Scanner;

/**
 * @author 19-0344
 *
 */
public class Tuika {

	/**
	 * @param args
	 */
	public static void main(String[] args) {
		// TODO 自動生成されたメソッド・スタブ
		Scanner s = new Scanner(System.in);
		int num=s.nextInt();
		int nu=s.nextInt();
		int r=0;
		for(int i=num;i<=nu;i++) {
			
			String stri = String.valueOf(i);

		char a=stri.charAt(0);
		char b=stri.charAt(1);
		char c=stri.charAt(4);
		char d=stri.charAt(3);
		if(a==c &&b==d) {
			r++;
			
		}
	}
		System.out.print(r);
	}
}


Compiler output:
Main.java:13: error: class Tuika is public, should be declared in a file named Tuika.java
public class Tuika {
       ^
1 error
Language: C++

#include <bits/stdc++.h>
using namespace std;
 
int main() {
  int a, b, c1, c2, c4, c5, d;
  cin >> a >> b;
  d = 0;
  for (int i = a; i < b + 1; i++) {
    c1 = i % 10;
    c2 = i / 10 % 10;
    c4 = i / 100 % 10;
    c5 = i / 1000 % 10;
    if (c1 == c5 && c2 == c4) {
      d += 1
    }
  cout << d << endl;
  }
}

Compiler output:
a.cc: In function 'int main()':
a.cc:14:13: error: expected ';' before '}' token
   14 |       d += 1
      |             ^
      |             ;
   15 |     }
      |     ~
Language: C++

#include <bits/stdc++.h>
using namespace std;
 
int main() {
  int a, b, c1, c2, c4, c5, d;
  cin >> a >> b;
  d = 0;
  for (int i = a; i < b + 1; i++) {
    c1 = i % 10;
    c2 = i / 10 % 10;
    c4 = i / 100 % 10;
    c5 = i / 1000 % 10;
    if (c1 == c5 && c2 == c4) {
      d += 1
    }
  cout << d << endl;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:14:13: error: expected ';' before '}' token
   14 |       d += 1
      |             ^
      |             ;
   15 |     }
      |     ~        
a.cc:17:2: error: expected '}' at end of input
   17 | }
      |  ^
a.cc:4:12: note: to match this '{'
    4 | int main() {
      |            ^
Language: C

import java.io.*;
public class Main{
    public static void main(String[] args) throws IOException{
        Reader r = new Reader();
        int[] a = r.ii();
        int ans = 0;
        for(int i = a[0]; i <= a[1]; i++){
            String s = String.valueOf(i);
            if(s.charAt(0) != s.charAt(4) || s.charAt(1) != s.charAt(3))
                continue;
            ans++;
        }
        print(ans);
    }

    static void print(Object o){
        System.out.println(o.toString());
    }
    static class Reader extends BufferedReader{
        Reader(){
            super(new InputStreamReader(System.in));
        }

        String s() throws IOException{
            return readLine();
        }

        String[] ss() throws IOException{
            return s().split(" ");
        }

        int Int(String s){
            return Integer.parseInt(s);
        }

        int i() throws IOException{
            return Int(s());
        }

        int[] ii() throws IOException{
            String[] ss = ss();
            int size = ss.length;
            int[] ii = new int[size];
            for(int j = 0; j < size; j++) ii[j] = Int(ss[j]);
            return ii;
        }
    }
}


Compiler output:
main.c:1:1: error: unknown type name 'import'
    1 | import java.io.*;
      | ^~~~~~
main.c:1:12: error: expected '=', ',', ';', 'asm' or '__attribute__' before '.' token
    1 | import java.io.*;
      |            ^
main.c:2:1: error: unknown type name 'public'
    2 | public class Main{
      | ^~~~~~
main.c:2:14: error: expected '=', ',', ';', 'asm' or '__attribute__' before 'Main'
    2 | public class Main{
      |              ^~~~
Language: C++

#include<iostream>
#include<vector>

using namespace std;

int main(){
  int i,j,k,l,m,a,b;
  vector <int> v;
  
  cin>>a>>b;
  
  for(i=a;i<=b;i++){
    j=i%10;
    k=(i/10)%10;
    l=(i/1000)%10;
    m=i/10000;
    
    if(j==m&&k==l)
      v.push_back(i);
  }
  for(i=0;i<b.size();i++){
    cout<<v[i]<<" ";
  }
  cout<<endl;
  return 0;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:21:15: error: request for member 'size' in 'b', which is of non-class type 'int'
   21 |   for(i=0;i<b.size();i++){
      |               ^~~~
Language: C++

#include <iostream>
using namespace std;

int main(int argc, const char * argv[]) {
    int A, B;
    int count = 0;
    
    cin >> A >> B;
    for (int i = A; i <= B; i++) {
        char s[10] = {0};
        sprintf(s, "%d", i);
        bool isPalindromic = true;
        for (int j = 0; j < strlen(s); j++) {
            if (s[j] != s[(strlen(s) - 1) - j]) {
                isPalindromic = false;
                break;
            }
        }
        if (isPalindromic) count++;
    }
    
    cout << count << endl;
    
    return 0;
}

Compiler output:
a.cc: In function 'int main(int, const char**)':
a.cc:13:29: error: 'strlen' was not declared in this scope
   13 |         for (int j = 0; j < strlen(s); j++) {
      |                             ^~~~~~
a.cc:2:1: note: 'strlen' is defined in header '<cstring>'; this is probably fixable by adding '#include <cstring>'
    1 | #include <iostream>
  +++ |+#include <cstring>
    2 | using namespace std;
Language: C++

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

int main() {

  int a,b,i,c=0;
  cin>>a>>b;
  for(i=a;i<=b;i++){
    e=i%100;
    f=e%10;
    g=e/10;
  if(i/1000==(g+f*10))
    c++;
  }
  cout<<c;
}


Compiler output:
a.cc: In function 'int main()':
a.cc:9:5: error: 'e' was not declared in this scope
    9 |     e=i%100;
      |     ^
a.cc:10:5: error: 'f' was not declared in this scope
   10 |     f=e%10;
      |     ^
a.cc:11:5: error: 'g' was not declared in this scope
   11 |     g=e/10;
      |     ^
Language: C++

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

int main (){
  int a,b;
  int r = 0;
  cin >> a >> b;
  
  for(int i = a; i < =b; i++){
    int s = i % 10, t = i / 10000 % 10;
    int u = i / 10 % 10, v = i /1000 % 10;
    
    if(s == t && u == v)
      r++;
  }
  cout << r << endl;
}


Compiler output:
a.cc: In function 'int main()':
a.cc:9:22: error: expected primary-expression before '=' token
    9 |   for(int i = a; i < =b; i++){
      |                      ^
Language: C++

#include <iostream>
using namespace std;
int main(void){
  int a,b;
  cin >> a >> b;
  
  int p,q,r,s,t;
  int ans = 0;
  
  for(int i=a;i<=b;i++){
    p = i % 10000;
    if(i % 10 == p){
      t = i % 10;
      i /= 10;
      s = i % 10;
      i /= 10;
      r = i % 10;
      i /= 10;
      q = i % 10;
    if(p == t && q == s)
      ans++;
  }
  
  cout << ans << endl;
  
  return 0;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:27:2: error: expected '}' at end of input
   27 | }
      |  ^
a.cc:3:15: note: to match this '{'
    3 | int main(void){
      |               ^
Language: C++

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

int main() {
  int A, B, N, count;
  cin >> A >> B;
  N = A;
  
  for (int i = 0; i < B - A; i++) {  
    
    int a, b, c, d;

    a = N % 10;
    b = (N / 10) % 10;
    c = (N / 1000) % 10;
    d = (N / 10000) % 10;
    
    if (a == d && b == c) {
      count++;
      N++;
    }
    else {
      N++;
    }    
  
  cout << count << endl;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:27:2: error: expected '}' at end of input
   27 | }
      |  ^
a.cc:4:12: note: to match this '{'
    4 | int main() {
      |            ^
Language: C++

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

int main(){
  int A,B;
  cin>>A>>B;
  
  int ans=0;
  for(int a=1;a<10;a++){
    for(int b=0;b>10;b++){
      for(int c=0;c<10;c++){
        
        int x=10001*a+1010*b+100*c;
        if((x>=A)&&(x<=B)){
          ans+++
        }
      }
    }
  }
  cout<<ans<<endl;
}

    
  


    
  


Compiler output:
a.cc: In function 'int main()':
a.cc:16:9: error: expected primary-expression before '}' token
   16 |         }
      |         ^
Language: C++

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

int main(){
  int A,B;
  cin>>A>>B;
  
  int ans=0:
  for(int a=1;a<10;a++){
    for(int b=0;b>10;b++){
      for(int c=0;c<10;c++){
        
        int x=10001*a+1010*b+100*c;
        if((x>=A)&&(x<=B)){
          ans+++
        }
      }
    }
  }
  cout<<ans<<endl;
}

    
  


    
  


Compiler output:
a.cc: In function 'int main()':
a.cc:8:12: error: expected ',' or ';' before ':' token
    8 |   int ans=0:
      |            ^
a.cc:9:15: error: 'a' was not declared in this scope
    9 |   for(int a=1;a<10;a++){
      |               ^
Language: C++

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

int main(){
  int A,B;
  cin>>A>>B;
  
  int ans=0:
  for(int a=1;a<10;a++){
    for(int b=0;b><0;b++){
      for(int c=0;c<10;c++){
        
        int x=10001*a+1010*b+100*c;
        if((x>=A)&&(x<=B)){
          ans+++
        }
      }
    }
  }
  cout<<ans<<endl;
}

    
  


    
  


Compiler output:
a.cc: In function 'int main()':
a.cc:8:12: error: expected ',' or ';' before ':' token
    8 |   int ans=0:
      |            ^
a.cc:9:15: error: 'a' was not declared in this scope
    9 |   for(int a=1;a<10;a++){
      |               ^
Language: C++

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

int main(){
  int A,B;
  cin>>A>>B;
  
  int ans=0:
  for(int a=1;a>10;a++){
    for(int b=0;b>10;b++){
      for(int c=0;c>10;c++){
        
        int x=10001*a+1010*b+100*c;
        if((x>=A)&&(x<=B)){
          ans+++
        }
      }
    }
  }
  cout<<ans<<endl;
}

    
  


    
  


Compiler output:
a.cc: In function 'int main()':
a.cc:8:12: error: expected ',' or ';' before ':' token
    8 |   int ans=0:
      |            ^
a.cc:9:15: error: 'a' was not declared in this scope
    9 |   for(int a=1;a>10;a++){
      |               ^
Language: C++

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

int main(){
  int A,B;
  cin>>A>>B;
  
  int ans=0:
  for(a=1;a>10;a++){
    for(b=0;b>10;b++){
      for(c=0;c>10;c++){
        
        int x=10001*a+1010*b+100*c;
        if((x>=A)&&(x<=B)){
          ans+++
        }
      }
    }
  }
  cout<<ans<<endl;
}

    
  


    
  

Compiler output:
a.cc: In function 'int main()':
a.cc:8:12: error: expected ',' or ';' before ':' token
    8 |   int ans=0:
      |            ^
a.cc:9:11: error: 'a' was not declared in this scope
    9 |   for(a=1;a>10;a++){
      |           ^
Language: C++

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

int main() {

	int A, B;
	cin >> A >> B;

	int count=0;

	for (int i = A; i <= B; i++) {
		vector<int>num;
		vector<int>num2;
		int n = i;
		while (n) {
			num.push_back(n % 10);
			num2.push_back(n % 10);
			n = n / 10;
		}
		reverse(num.begin(), num.end());

		int same = true;

		for (unsigned int i = 0; i < num.size(); i++) {
			if (num[i] != num2[i]) {
				same = false;
			}
		}

		if (same == true) {
			count++;
		}
	}

	cout << count << endl;

	return 0;

}

Compiler output:
a.cc: In function 'int main()':
a.cc:21:17: error: 'reverse' was not declared in this scope
   21 |                 reverse(num.begin(), num.end());
      |                 ^~~~~~~
Language: C++

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

int reversed_number(int n) {
  int x = 1;
  int reversed=0;
  vector<int> numbers = {};
  while(n != 0) {
    numbers.push_back(n % 10);
    n /= 10;
  }
  
  for(int i= numbers.size()-1;i>=0;i--) {
    reversed += numbers.at(i) * x;
    x *= 10;
  }
 
  
  return reversed;
}

int main() {

 int N,M;
  int sum = 0;
  cin >> N;
  cin >> M;
  
  for(int i=N; i<=M;i++) {
    if(i == reversed_number(i) ) {
      sum+=1;
    }
  }
  
  cout << sum << endl;
  
  return 0;
}
    

}


Compiler output:
a.cc:41:1: error: expected declaration before '}' token
   41 | }
      | ^
Language: C++

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

int reversed_number(int n) {
  int x = 1;
  int reversed=0;
  vector<int> numbers = {};
  while(n != 0) {
    numbers.push_back(n % 10);
    n /= 10;
  }
  
  for(int i= numbers.size()-1;i=>0;i--) {
    reversed += numbers.at(i) * x;
    x *= 10;
  }
 
  
  return reversed;
}

int main() {

 int N,M;
  int sum = 0;
  cin >> N;
  cin >> M;
  
  for(int i=N; i<=M;i++) {
    if(i == reversed_number(i) ) {
      sum+=1;
    }
  }
  
  cout << sum << endl;
  
  return 0;
}
    

}


Compiler output:
a.cc: In function 'int reversed_number(int)':
a.cc:13:33: error: expected primary-expression before '>' token
   13 |   for(int i= numbers.size()-1;i=>0;i--) {
      |                                 ^
a.cc: At global scope:
a.cc:41:1: error: expected declaration before '}' token
   41 | }
      | ^
Language: C++

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

int reversed_number(int n) {
  int x = 1;
  int reversed=0;
  while(n != 0) {
    reversed += (n % 10) * x;
    x *= 10;
    n /= 10;
  }
  
  return reversed;
}

int main() {

 int N,M;
  int sum = 0;
  cin >> N;
  cin >> M;
  
  for(int i=N; i<=M;i++) {
    if(i == reversed_number(i) ) {
      sum+=1;
    }
  }
  
  cout << sum << endl;
  
  return 0;
}
    

}

Compiler output:
a.cc:35:1: error: expected declaration before '}' token
   35 | }
      | ^
Language: C++

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

int main() {
  int A,B;
  cin >> A >> B;
  int sum;
  for ( int i = A; A < ( B + 1 ); i++) {
    if ( A % 11 = 0 )
      sum++;
  }
  cout << sum << endl;
}


Compiler output:
a.cc: In function 'int main()':
a.cc:9:12: error: lvalue required as left operand of assignment
    9 |     if ( A % 11 = 0 )
      |          ~~^~~~
Language: C++

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

int main() {
  int A, B;
  cin >> A >> B;
  
   int counter = 0;
  for (;A < B + 1; A++) {
    int s1 = A % 10;
    int s2 = A % 10**2 / 10;
    int s3 = A % 10**3 / 10**2;
    int s4 = A % 10**4 / 10**3;
    int s5 = A / 10**4;
    
    if (s1 == s5 && s2 == s4) 
      counter++;
    if (s5 == 0 && s1 == s4 && s2 == s3)
      counter++;
    if (s5 == 0 && s4 == 0 && s1 == s3)
      counter++;
  }
  
  cout << counter << endl;
  
}

Compiler output:
a.cc: In function 'int main()':
a.cc:11:21: error: invalid type argument of unary '*' (have 'int')
   11 |     int s2 = A % 10**2 / 10;
      |                     ^~
a.cc:12:21: error: invalid type argument of unary '*' (have 'int')
   12 |     int s3 = A % 10**3 / 10**2;
      |                     ^~
a.cc:12:29: error: invalid type argument of unary '*' (have 'int')
   12 |     int s3 = A % 10**3 / 10**2;
      |                             ^~
a.cc:13:21: error: invalid type argument of unary '*' (have 'int')
   13 |     int s4 = A % 10**4 / 10**3;
      |                     ^~
a.cc:13:29: error: invalid type argument of unary '*' (have 'int')
   13 |     int s4 = A % 10**4 / 10**3;
      |                             ^~
a.cc:14:21: error: invalid type argument of unary '*' (have 'int')
   14 |     int s5 = A / 10**4;
      |                     ^~
Language: C++

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

int main() {
  int a, b;
  cin >> a >> b;

  int cnt = 0;
  for (;a <= b; a++) {
      s = to_string(a);
      if (s[0]==s[4] && s[1]==s[3]) cnt += 1;
  }

  cout << cnt << endl;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:10:7: error: 's' was not declared in this scope
   10 |       s = to_string(a);
      |       ^
Language: C++

#include <bits/stdc++.h>
using namespace std;
 
int main() {
  int k = 0;
  int A, B; 
  int X = 0;
  string C; 
  cin >> A >> B;
  for (int j = A; j < B + 1; j++) {
    C = to_string(j);
    for (int i = 0; i < 2; i++) {
      if (C[i] != C[4 - i]) {
        X++;
      } 
    }
    if (X == 2) {
    k++;
  }
  cout << k << endl;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:21:2: error: expected '}' at end of input
   21 | }
      |  ^
a.cc:4:12: note: to match this '{'
    4 | int main() {
      |            ^
Language: C++

#include <bits/stdc++.h>
using namespace std;
 
int main() {
  int k = 0;
  int A, B 
  int X = 0;
  string C; 
  cin >> A >> B;
  for (int j = A; j < B + 1; j++) {
    C = to_string(j);
    for (int i = 0; i < 2; i++) {
      if (C[i] != C[4 - i]) {
        X++;
      } 
    }
    if (X == 2) {
    k++;
  }
  cout << k << endl;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:7:3: error: expected initializer before 'int'
    7 |   int X = 0;
      |   ^~~
a.cc:9:15: error: 'B' was not declared in this scope
    9 |   cin >> A >> B;
      |               ^
a.cc:14:9: error: 'X' was not declared in this scope
   14 |         X++;
      |         ^
a.cc:17:9: error: 'X' was not declared in this scope
   17 |     if (X == 2) {
      |         ^
a.cc:21:2: error: expected '}' at end of input
   21 | }
      |  ^
a.cc:4:12: note: to match this '{'
    4 | int main() {
      |            ^
Language: C++

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

int main() {
  int A, B, n;
  cin >> A >> B;
  n = 0
  for (int x = A; x <= B; x++) {
    int a, b, d, e;
    a = x / 10000;
    b = (x % 10000) / 1000;
    d = (x % 100) / 10;
    e = x % 10;
    if (a = e && b = d) {
      n++;
    }
  }
  cout << n << endl;
}


Compiler output:
a.cc: In function 'int main()':
a.cc:7:8: error: expected ';' before 'for'
    7 |   n = 0
      |        ^
      |        ;
    8 |   for (int x = A; x <= B; x++) {
      |   ~~~   
a.cc:8:19: error: 'x' was not declared in this scope
    8 |   for (int x = A; x <= B; x++) {
      |                   ^
Language: C++

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

int main() {
  int A, B, n;
  cin >> A >> B;
  n = 0
  for (x = A; x <= B; x++) {
    int a, b, d, e;
    a = x / 10000;
    b = (x % 10000) / 1000;
    d = (x % 100) / 10;
    e = x % 10;
    if (a = e && b = d) {
      n++;
    }
  }
}

Compiler output:
a.cc: In function 'int main()':
a.cc:7:8: error: expected ';' before 'for'
    7 |   n = 0
      |        ^
      |        ;
    8 |   for (x = A; x <= B; x++) {
      |   ~~~   
a.cc:8:15: error: 'x' was not declared in this scope
    8 |   for (x = A; x <= B; x++) {
      |               ^
Language: C++

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

int main() {
  int A,B,count=0;
  cin >>A>>B;
  for (int i=A, i<B+1 ; i++){
    if(i/10000 == i % 10 && (i/1)%10 == (i/1000)%10){
      count +=1;
    }
  }
  cout << count <<endl;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:7:18: error: expected ';' before '<' token
    7 |   for (int i=A, i<B+1 ; i++){
      |                  ^
      |                  ;
a.cc:7:18: error: expected primary-expression before '<' token
Language: C++

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

int main(){
  int a,b;
  cin >> a >> b;
  int count = 0;
  for (int i = a;i<=b;i++){
    int i1,i2,i4,i5;
    i5 = i%10;
    i1 = i/10000;
    i2 = (i%10000)/1000;
    i3 = (i%100)/10;
    if (i5 == i1 && i2 == i4)
      count += 1;
  }
  cout << count << endl;
}
    

Compiler output:
a.cc: In function 'int main()':
a.cc:13:5: error: 'i3' was not declared in this scope; did you mean 'i5'?
   13 |     i3 = (i%100)/10;
      |     ^~
      |     i5
Language: C++

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

int main() {
  int count, A, B;
  count = 0;
  cin >> A >> B;
  
  for (int i = A ; i < B + 1 ; i++ ){
    int X, Y, a, b, d, e;
    X = i / 1000;
    Y = i % 100;
    a = X / 10;
    b = X % 10;
    d = Y / 10;
    e = Y % 10;
    
    if ( a == e && b == d) {
      count++;
    }
  }
  
  cout << count << endl;
}

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

#include <bits/stdc++.h>
using namespace std;
 
int main() {
  int A,B,k1,k2,k3,k4,k5,N;
  cin>>A>>B;
  int i,s;
  s=0;
  for(i=A;i<B+1;i++){
    k1=i%10;
    k2=(i/10)%10;
    k3=(i/100)%10;
    k4=(i/1000)%10;
    k5=(i/10000)%10;
    N=k1*10000+k2*1000+k3*100+k4*10+k5;
    if(i==N){
      s++
    }
    else{
      continue;
    }
  }
  cout<<s<<endl;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:17:10: error: expected ';' before '}' token
   17 |       s++
      |          ^
      |          ;
   18 |     }
      |     ~
Language: C++

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

int main(){
  
  int a,b;
  cin >> a >> b;
  int cnt = 0;
  int n =a;
  
  
  for(int i = a; i < b+1; i++){
     if((n/10000==n%10)&&(n/1000%10)==(n/10%10))
       cnt ++;
     n++
  }
     
    cout << cnt << endl;

}
    

Compiler output:
a.cc: In function 'int main()':
a.cc:15:9: error: expected ';' before '}' token
   15 |      n++
      |         ^
      |         ;
   16 |   }
      |   ~
Language: C++

import java.io.BufferedReader;
import java.io.InputStreamReader;
import java.util.StringTokenizer;

public class Main {
    public static void main(String[] args)throws  Exception{
        BufferedReader input = new BufferedReader(new InputStreamReader(System.in));
        StringTokenizer tokenizer = new StringTokenizer(input.readLine());
        int a = Integer.parseInt(tokenizer.nextToken());
        int b = Integer.parseInt(tokenizer.nextToken());
        int count = 0;
        for (int i = a; i <= b; i++) {
            if (isBlandrome(i))
                count++;
        }
        System.out.println(count);
    }

    public static boolean isBlandrome(int n){
        int copy = n;

        int newN = 0;

        while (n > 9){
            newN = newN * 10 + (n % 10);
            n /= 10;
        }

        if (n > 0){
            newN = newN * 10 + (n % 10);
        }

        return  newN == copy;
    }
}


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:3:1: error: 'import' does not name a type
    3 | import java.util.StringTokenizer;
      | ^~~~~~
a.cc:3:1: note: C++20 'import' only available with '-fmodules-ts'
a.cc:5:1: error: expected unqualified-id before 'public'
    5 | public class Main {
      | ^~~~~~
Language: C++

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

int main{
 int　A, B, sum;
 cin >> A >> B;
  for(int i = 0; i < B - A + 1; i++){
  
    if(A + i / 1000 == A + i % 100){
    sum += 1;
    }
  }
cout << sum << endl;
}

Compiler output:
a.cc:5:2: error: extended character 　 is not valid in an identifier
    5 |  int　A, B, sum;
      |  ^
a.cc:4:5: error: cannot declare '::main' to be a global variable
    4 | int main{
      |     ^~~~
a.cc:5:2: error: 'int\U00003000A' was not declared in this scope
    5 |  int　A, B, sum;
      |  ^~~~~~
a.cc:5:10: error: 'B' was not declared in this scope
    5 |  int　A, B, sum;
      |          ^
a.cc:5:13: error: 'sum' was not declared in this scope
    5 |  int　A, B, sum;
      |             ^~~
a.cc:5:16: error: expected '}' before ';' token
    5 |  int　A, B, sum;
      |                ^
a.cc:4:9: note: to match this '{'
    4 | int main{
      |         ^
a.cc:4:5: error: scalar object 'main' requires one element in initializer
    4 | int main{
      |     ^~~~
a.cc:6:2: error: 'cin' does not name a type
    6 |  cin >> A >> B;
      |  ^~~
a.cc:7:3: error: expected unqualified-id before 'for'
    7 |   for(int i = 0; i < B - A + 1; i++){
      |   ^~~
a.cc:7:18: error: 'i' does not name a type
    7 |   for(int i = 0; i < B - A + 1; i++){
      |                  ^
a.cc:7:33: error: 'i' does not name a type
    7 |   for(int i = 0; i < B - A + 1; i++){
      |                                 ^
a.cc:13:1: error: 'cout' does not name a type
   13 | cout << sum << endl;
      | ^~~~
a.cc:14:1: error: expected declaration before '}' token
   14 | }
      | ^
Language: C++

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

int main(){
  int A,B;
  cin >>A >>B;
  int N=0;
  for(i=A; A<=B;A++){
    if(A/10000==A%10&&A/1000==A/10)
      N++;
  }
  cout <<N <<endl;
}


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

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

int main(){
  int A,B;
  cin >>A >>B;
  int N=0;
  for(int i=0; i<(B-A+1);i++){
    if(A.at(0)==A.at(4)&&A.at(1)==A.at(3))
      N++;
    A++;
  }
  cout <<N <<endl;
}


Compiler output:
a.cc: In function 'int main()':
a.cc:9:10: error: request for member 'at' in 'A', which is of non-class type 'int'
    9 |     if(A.at(0)==A.at(4)&&A.at(1)==A.at(3))
      |          ^~
a.cc:9:19: error: request for member 'at' in 'A', which is of non-class type 'int'
    9 |     if(A.at(0)==A.at(4)&&A.at(1)==A.at(3))
      |                   ^~
a.cc:9:28: error: request for member 'at' in 'A', which is of non-class type 'int'
    9 |     if(A.at(0)==A.at(4)&&A.at(1)==A.at(3))
      |                            ^~
a.cc:9:37: error: request for member 'at' in 'A', which is of non-class type 'int'
    9 |     if(A.at(0)==A.at(4)&&A.at(1)==A.at(3))
      |                                     ^~
Language: C++

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

int main(){
  int A,B;
  cin >>A >>B;
  int N=0;
  for(int i=0; i<(B-A+1);i++){
    if(A.at(0)==A.at(4)&&A.at(1)==A.at(3))
      N++;
    else
      continue;
  }
  cout <<N <<endl;
}


Compiler output:
a.cc: In function 'int main()':
a.cc:9:10: error: request for member 'at' in 'A', which is of non-class type 'int'
    9 |     if(A.at(0)==A.at(4)&&A.at(1)==A.at(3))
      |          ^~
a.cc:9:19: error: request for member 'at' in 'A', which is of non-class type 'int'
    9 |     if(A.at(0)==A.at(4)&&A.at(1)==A.at(3))
      |                   ^~
a.cc:9:28: error: request for member 'at' in 'A', which is of non-class type 'int'
    9 |     if(A.at(0)==A.at(4)&&A.at(1)==A.at(3))
      |                            ^~
a.cc:9:37: error: request for member 'at' in 'A', which is of non-class type 'int'
    9 |     if(A.at(0)==A.at(4)&&A.at(1)==A.at(3))
      |                                     ^~
Language: C++

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

int main(){
  int A,B;
  cin >>A >>B;
  int N=0;
  for(int i=0; i<(B-A+1);i++){
    if(A.at(0)==A.at(4)&&A.at(1)==A.at(3))
      N++;
    else
      continue;
  }
  cout <<N <<endl;
}

Compiler output:
a.cc:1:1: error: 'include' does not name a type
    1 | include <bits/stdc++.h>
      | ^~~~~~~
a.cc: In function 'int main()':
a.cc:6:3: error: 'cin' was not declared in this scope
    6 |   cin >>A >>B;
      |   ^~~
a.cc:9:10: error: request for member 'at' in 'A', which is of non-class type 'int'
    9 |     if(A.at(0)==A.at(4)&&A.at(1)==A.at(3))
      |          ^~
a.cc:9:19: error: request for member 'at' in 'A', which is of non-class type 'int'
    9 |     if(A.at(0)==A.at(4)&&A.at(1)==A.at(3))
      |                   ^~
a.cc:9:28: error: request for member 'at' in 'A', which is of non-class type 'int'
    9 |     if(A.at(0)==A.at(4)&&A.at(1)==A.at(3))
      |                            ^~
a.cc:9:37: error: request for member 'at' in 'A', which is of non-class type 'int'
    9 |     if(A.at(0)==A.at(4)&&A.at(1)==A.at(3))
      |                                     ^~
a.cc:14:3: error: 'cout' was not declared in this scope
   14 |   cout <<N <<endl;
      |   ^~~~
a.cc:14:14: error: 'endl' was not declared in this scope
   14 |   cout <<N <<endl;
      |              ^~~~
Language: C++

#include <bits/stdc++.h>
#define REP(i,n) for(int i=0;i<n;i++)
using namespace std;
 
int main(){
  int n,m;
  cin>>n>>m;
  long long ans;
  if(n==1 && m==1){
    cout<<1<<endl;
  }else if(n==1 || m==1){
    ans = max(n,m)-2
    cout<<ans<<endl;
  }else if(n==2 || m==2){
    cout<<0<<endl;
  }else{
    ans = (n-2)*(m-2);
    cout<<ans<<endl;
  }
  return 0;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:12:21: error: expected ';' before 'cout'
   12 |     ans = max(n,m)-2
      |                     ^
      |                     ;
   13 |     cout<<ans<<endl;
      |     ~~~~
Language: C++

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

int main(){
  int A,B,n;
  cin >> A >> B;
  for(int i = A;i <= B;i =i + 1){
    if(i/1000 == (i%10)*10 + (i%100 - i%10)/10){
      n = n + 1;
    }
  
  
  cout << n;

}  
     
  
  


Compiler output:
a.cc: In function 'int main()':
a.cc:15:2: error: expected '}' at end of input
   15 | }
      |  ^
a.cc:4:11: note: to match this '{'
    4 | int main(){
      |           ^
Language: C++

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

int main(){
  int A,B;
  cin >> A >> B;
  
  int n = 0;
  while(A <= B){
   if(A/1000 == A%100){
    n = n + 1;
     A = A + 1
   }
    
  }
  
  cout << n;

}  
     
  
  


Compiler output:
a.cc: In function 'int main()':
a.cc:12:15: error: expected ';' before '}' token
   12 |      A = A + 1
      |               ^
      |               ;
   13 |    }
      |    ~
Language: C++

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

int main(){
  int A,B;
  cin >> A >> B;
  
  int n = 0;
  while(A <= B){
   if(A/1000 == A%10 + (A%100 - A%10)/10){
    n = n + 1;
   }
   else{
    n = n + 0; 
    A = A++;
  }
  
  cout << n;

}  
     
  
  


Compiler output:
a.cc: In function 'int main()':
a.cc:20:2: error: expected '}' at end of input
   20 | }
      |  ^
a.cc:4:11: note: to match this '{'
    4 | int main(){
      |           ^
Language: C++

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

int main(){
  int A,B,n;
  cin >> A >> B;
  
  if(B == 10000){
    n = 0;
  }
  if(B == 10001){
    if(A == 10000){
      n = 1;
    }
    else{
      n = 0;
    }
  }  
  
  else{
    int m,l;
    while(B/1000 !== (B%10)*10 + (B%100 - B%10)/10){
      B = B--;
      m = (99 - B/1000)*10 +(9 - (B/100 - (B/1000) * 10));
    }
  
     if(A <= 10001){
       l = 0;
     }
     else{ 
      while(A/1000 !== (A%10)*10 + (A%100 -A%10)/10){
      A = A--;
      l = (A/1000 -10)*10+A/100 - (A/1000)*10+1;
      }
     }
    
    n = 900 - m - l;
  }
       
       
  
  
 
  
  cout << n;

}  
     
  
  

Compiler output:
a.cc: In function 'int main()':
a.cc:22:20: error: expected primary-expression before '=' token
   22 |     while(B/1000 !== (B%10)*10 + (B%100 - B%10)/10){
      |                    ^
a.cc:31:22: error: expected primary-expression before '=' token
   31 |       while(A/1000 !== (A%10)*10 + (A%100 -A%10)/10){
      |                      ^
Language: C++

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

int main(){
  int N, M;
  cin >> N >> M;
  
  i = N;
  int a, b, c, d, sum = 0;
  for(;i < M; i++){
    a = i / 10000;
    b = (i / 1000) % 10;
    c = (i / 10) % 10;
    d = i % 10;
    if(a == d)
      if(b == c)
        sum++;
    
  }
  cout << sum << endl;
}
        

Compiler output:
a.cc: In function 'int main()':
a.cc:8:3: error: 'i' was not declared in this scope
    8 |   i = N;
      |   ^
Language: C++

int main() {
  int A , B;
  cin >> A;
  cin >> B;
  int count = 0;
  //abcde
  for (int i = 0; i <= B-A; i++) {
    int a , b , d , e;
    //数字を取り出す
	a = (A+i)/10000;
	b = (A+i)/1000- 10*((A+i)/10000);
    d = (A+i)/10- 10*((A+i)/100);
    e = (A+i) - 10*((A+i)/10);
      
    if (a == e && b == d) { 
      count++;
    }
  }
  
    cout << count << endl;
  return 0;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:3:3: error: 'cin' was not declared in this scope
    3 |   cin >> A;
      |   ^~~
a.cc:20:5: error: 'cout' was not declared in this scope; did you mean 'count'?
   20 |     cout << count << endl;
      |     ^~~~
      |     count
a.cc:20:22: error: 'endl' was not declared in this scope
   20 |     cout << count << endl;
      |                      ^~~~
Language: C++

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

int main(){
  int a,b;
  cin>>a>>b;
  int i=0;
  for(a,a<b,a++){
    if (a/10000==a%10)&&(a/1000==a/10%10)
      i++;
  }
  cout<<i<<endl;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:8:16: error: expected ';' before ')' token
    8 |   for(a,a<b,a++){
      |                ^
      |                ;
a.cc:13:1: error: expected primary-expression before '}' token
   13 | }
      | ^
a.cc:12:17: error: expected ')' before '}' token
   12 |   cout<<i<<endl;
      |                 ^
      |                 )
   13 | }
      | ~                
a.cc:8:6: note: to match this '('
    8 |   for(a,a<b,a++){
      |      ^
a.cc:13:1: error: expected primary-expression before '}' token
   13 | }
      | ^
Language: C++

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

int main(){
  int A, B;
  cin >> A >> B; 
  int sum == 0;
  for(int i = A; A <= B; i++)
    if(i/10000==i%10 && i%10000/1000==i%100/10)
      sum++; 
  cout << sum << endl;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:7:11: error: expected initializer before '==' token
    7 |   int sum == 0;
      |           ^~
a.cc:10:7: error: 'sum' was not declared in this scope
   10 |       sum++;
      |       ^~~
a.cc:11:11: error: 'sum' was not declared in this scope
   11 |   cout << sum << endl;
      |           ^~~
Language: C++

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

int main() {
  int A, B;
  cin >> A >> B;
  
  int count = 0;
  for (int i = A; i <= B; i++) {
    int j, k, l, m;
    j = i / 10000;
    k = (i % 10000) / 1000;
    l = (i % 100) / 10;
    m = i % 10
    if (j == m && k == l) {
      count++;
    }
  }
  cout << count << endl;
}


Compiler output:
a.cc: In function 'int main()':
a.cc:14:15: error: expected ';' before 'if'
   14 |     m = i % 10
      |               ^
      |               ;
   15 |     if (j == m && k == l) {
      |     ~~
Language: C++

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

/* REPmacro */
#define REP(i,n) for(int i=0,i##_len=(n);i<i##_len;++i)
#define REPR(i,n) for(int i=((int)(n)-1);i>=0;--i)
#define FOR(i,m,n) for(int i=(int)(m);i<(int)(n);++i)

/*alias*/
#define ALL(x) (x).begin(),(x).end()
#define SZ(x) ((int)(x).size())
#define F first
#define S second
#define PB push_back
#define MP make_pair 

#define y0 y3487465
#define y1 y8687969
#define j0 j1347829
#define j1 j234892
#define next asdnext
#define prev asdprev

/*using*/
using ll = long long;
using ull = unsigned long long;
using unsi = unsigned;
using vi = vector<int>;
using vvi = vector<vi>;
using vvvi = vector<vvi>;
using pii = pair<int, int>;
using db = double;
using plex = complex<double>;
using vs = vector<string>;

/*template*/
template<class T>inline bool amax(T &a, const T &b) { if (a<b) { a=b; return 1; } return 0; }
template<class T>inline bool amin(T &a, const T &b) { if (b<a) { a=b; return 1; } return 0; }

/* func */

/*struct*/
struct aaa{
    aaa(){
        cin.tie(0); ios::sync_with_stdio(0); cout<<fixed<<setprecision(20);
    };
}aaaaaaa;

/* const */
const int INF = 1001001001;
const ll LINF = 1001001001001001001ll;
const int MOD = 1e9 + 7; //10^9
const db EPS = 1e-9;
const int dx[] = {0, 1, 0, -1, 1, -1, 1, -1}, dy[] = {1, 0, -1, 0, 1, -1, -1, 1};

//#define int ll
//#define int long long

int kai(int i){ 
  int cnt = 0;
  
  one = i % 10;
  ten = (i / 10)%10;
  tho = (i / 1000)%10;
  man = (i / 10000);
  
  if(one == man && ten == tho)
   ++cnt;

  return cnt; 
}

signed main()
{
  int a,b; cin >> a >> b;
  int ans = 0;
  
  FOR(i, a, b+1)
   ans += kai(i);
  
  
  cout << ans;
  return 0;
}

Compiler output:
a.cc: In function 'int kai(int)':
a.cc:62:3: error: 'one' was not declared in this scope
   62 |   one = i % 10;
      |   ^~~
a.cc:63:3: error: 'ten' was not declared in this scope; did you mean 'tan'?
   63 |   ten = (i / 10)%10;
      |   ^~~
      |   tan
a.cc:64:3: error: 'tho' was not declared in this scope
   64 |   tho = (i / 1000)%10;
      |   ^~~
a.cc:65:3: error: 'man' was not declared in this scope; did you mean 'tan'?
   65 |   man = (i / 10000);
      |   ^~~
      |   tan
Language: C++

#include <bits/stdc++.h>
using namespace std;
 
int main() {
	int A,B,C=0,Q,W,E,R,T;
	cin>>A>>B;
	E=A
	for(int i=0; i<(B-A); i++; ){
		Q=(E/10000)%10; //10000の位
		W=(E/1000)%10; //1000の位
		R=(E/10)%10; //10の位
		T=(E/1)%10; //1の位
		if((Q==T)&&(W==R)){
			C++ ;
		}
		E++;
	}
	cout<<C<<endl;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:7:12: error: expected ';' before 'for'
    7 |         E=A
      |            ^
      |            ;
    8 |         for(int i=0; i<(B-A); i++; ){
      |         ~~~ 
a.cc:8:22: error: 'i' was not declared in this scope
    8 |         for(int i=0; i<(B-A); i++; ){
      |                      ^
a.cc:8:36: error: expected primary-expression before ')' token
    8 |         for(int i=0; i<(B-A); i++; ){
      |                                    ^
Language: C++

#include <bits/stdc++.h>
using namespace std;
 
int main() {
	int A,B,C=0,Q,W,E,R,T;
	cin>>A>>B;
	E=A
	for(int i=0; i<(B-A); i++; ){
		Q=(E/10000)%10; //10000の位
		W=(E/1000)%10; //1000の位
		R=(E/10)%10; //10の位
		T=(E/1)%10; //1の位
		if(Q==T&&W==R;){
			C++ ;
		}
		E++;
	}
	cout<<C<<endl;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:7:12: error: expected ';' before 'for'
    7 |         E=A
      |            ^
      |            ;
    8 |         for(int i=0; i<(B-A); i++; ){
      |         ~~~ 
a.cc:8:22: error: 'i' was not declared in this scope
    8 |         for(int i=0; i<(B-A); i++; ){
      |                      ^
a.cc:8:36: error: expected primary-expression before ')' token
    8 |         for(int i=0; i<(B-A); i++; ){
      |                                    ^
Language: C++

#include <bits/stdc++.h>
using namespace std;
 
int main() {
	int A,B,C=0,Q,W,E,R,T;
	cin>>A>>B;
	E=A
	for(int i=0; i<(B-A); i++; ){
		Q=(E/10000)%10; //10000の位
		W=(E/1000)%10; //1000の位
		R=(E/10)%10; //10の位
		T=(E/1)%10; //1の位
		if(Q==T&&W==R;){
			C++ ;
		}
		E++
	}
	cout<<C<<endl;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:7:12: error: expected ';' before 'for'
    7 |         E=A
      |            ^
      |            ;
    8 |         for(int i=0; i<(B-A); i++; ){
      |         ~~~ 
a.cc:8:22: error: 'i' was not declared in this scope
    8 |         for(int i=0; i<(B-A); i++; ){
      |                      ^
a.cc:8:36: error: expected primary-expression before ')' token
    8 |         for(int i=0; i<(B-A); i++; ){
      |                                    ^
Language: C++

#include <bits/stdc++.h>
using namespace std;
 
int main() {
	int A,B,C=0,Q,W,R,T;
	cin>>A>>B;
	for(int i=0; i<(B-A); i++; A++){
		Q=(A/10000)%10; //10000の位
		W=(A/1000)%10; //1000の位
		R=(A/10)%10; //10の位
		T=(A/1)%10; //1の位
		if(
		Q==T&&W==R;
		){
			C++;
		}
	}
	cout<<C<<endl;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:7:34: error: expected ')' before ';' token
    7 |         for(int i=0; i<(B-A); i++; A++){
      |            ~                     ^
      |                                  )
a.cc:7:39: error: expected ';' before ')' token
    7 |         for(int i=0; i<(B-A); i++; A++){
      |                                       ^
      |                                       ;
Language: C++

#include <bits/stdc++.h>
using namespace std;
 
int main() {
	int A,B,C=0,Q,W,R,T;
	cin>>A>>B;
	for(int i=0; i<(B-A); i++; A++){
		Q=(A/10000)%10 //10000の位
		W=(A/1000)%10 //1000の位
		R=(A/10)%10 //10の位
		T=(A/1)%10 //1の位
		if(
		Q==T&&W==R
		){
			C++
		}
	}
	cout<<C<<endl;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:7:34: error: expected ')' before ';' token
    7 |         for(int i=0; i<(B-A); i++; A++){
      |            ~                     ^
      |                                  )
a.cc:7:39: error: expected ';' before ')' token
    7 |         for(int i=0; i<(B-A); i++; A++){
      |                                       ^
      |                                       ;
Language: C++

#include<bits/stdc++.h>
using namespace std;
int main(){
  int A,B,c=0;cin>>A>>B;
  for(int i=A;i<=B;i++){
  if(i/10000==i%10&(i%10000)/1000==(i%100)/10)++c;
  cout<<c;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:8:2: error: expected '}' at end of input
    8 | }
      |  ^
a.cc:3:11: note: to match this '{'
    3 | int main(){
      |           ^
Language: C++

#include<bits/stdc++.h>
using namespace std;
int main(){
  int A,B,c=0;cin>>A>>b;
  if(A/10000==A%10&(A%10000)/1000==(A%100)/10)++c;
  cout<<c;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:4:23: error: 'b' was not declared in this scope
    4 |   int A,B,c=0;cin>>A>>b;
      |                       ^