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

#include<stdio.h>
int main()
{
	int a,b,c;
	int hw(int);
	char n[102];
	while(scanf("%d%d",&a,&b)!=EOF)
	{
		int sum=0;
		for(int i=a;i<=b;i++)
		{
			if(hw(i))
				sum++;
		}
		printf("%d\n",sum);
	}
	return 0;
}
bool hw(int x)
{
    int x1=x;
	if(x<0)
		return false;
	long long y=0;
	while(x)
	{
	    y=y*10+(x%10);
		x=x/10;
	}
	if(y==x1)
	   return true;
	else
	   return false;
}


Compiler output:
main.c:19:1: error: unknown type name 'bool'
   19 | bool hw(int x)
      | ^~~~
main.c:2:1: note: 'bool' is defined in header '<stdbool.h>'; this is probably fixable by adding '#include <stdbool.h>'
    1 | #include<stdio.h>
  +++ |+#include <stdbool.h>
    2 | int main()
main.c: In function 'hw':
main.c:23:24: error: 'false' undeclared (first use in this function)
   23 |                 return false;
      |                        ^~~~~
main.c:23:24: note: 'false' is defined in header '<stdbool.h>'; this is probably fixable by adding '#include <stdbool.h>'
main.c:23:24: note: each undeclared identifier is reported only once for each function it appears in
main.c:31:19: error: 'true' undeclared (first use in this function)
   31 |            return true;
      |                   ^~~~
main.c:31:19: note: 'true' is defined in header '<stdbool.h>'; this is probably fixable by adding '#include <stdbool.h>'
Language: C

#include<bits/stdc++.h>
using namespace std;
int main()
{
	int a,b,c;
	int hw(int);
	char n[102];
	while(scanf("%d%d",&a,&b)!=EOF)
	{
		int sum=0;
		for(int i=a;i<=b;i++)
		{
			if(hw(i))
				sum++;
		}
		printf("%d\n",sum);
	}
	return 0;
}
bool hw(int x)
{
    int x1=x;
	if(x<0)
		return false;
	long long y=0;
	while(x)
	{
	    y=y*10+(x%10);
		x=x/10;
	}
	if(y==x1)
	   return true;
	else
	   return false;
}


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

#include<iostream>
#include<string>

int main() {
  int top, under;
  int count = 0;
  std::cin >> under >> top;
  for (int i=under; i < top+1; i++) {
    std::string data=std::to_string(i)
    for (int j=0; j<data.size()/2+1;j++) {
      if (data.at(j) != data.at(data.size()-1-j)) {
        break;
      }
      else if (j==data.size()/2) {
        count++;
      }
    }   
  }
  std::cout << count << std::endl;
}


Compiler output:
a.cc: In function 'int main()':
a.cc:10:5: error: expected ',' or ';' before 'for'
   10 |     for (int j=0; j<data.size()/2+1;j++) {
      |     ^~~
a.cc:10:19: error: 'j' was not declared in this scope
   10 |     for (int j=0; j<data.size()/2+1;j++) {
      |                   ^
Language: C++

int main(){
  int a,b;
  string s;
  cin >> a >> b;
  int count=0;
  for(int i=a;i<=b;i++){
    s=to_string(i);
    if(s[0]==s[4]&&s[1]==s[3]){
      count ++;
    }
  }
  cout << count << endl;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:3:3: error: 'string' was not declared in this scope
    3 |   string s;
      |   ^~~~~~
a.cc:4:3: error: 'cin' was not declared in this scope
    4 |   cin >> a >> b;
      |   ^~~
a.cc:7:5: error: 's' was not declared in this scope
    7 |     s=to_string(i);
      |     ^
a.cc:7:7: error: 'to_string' was not declared in this scope
    7 |     s=to_string(i);
      |       ^~~~~~~~~
a.cc:12:3: error: 'cout' was not declared in this scope; did you mean 'count'?
   12 |   cout << count << endl;
      |   ^~~~
      |   count
a.cc:12:20: error: 'endl' was not declared in this scope
   12 |   cout << count << endl;
      |                    ^~~~
Language: C++

#include<iostream> 
using namespace std; 
  
// A function to check if n is palindrome 
int isPalindrome(int n) 
{ 
    // Find reverse of n 
    int rev = 0; 
    for (int i = n; i > 0; i /= 10) 
        rev = rev*10 + i%10; 
  
    // If n and rev are same, then n is palindrome 
    return (n==rev); 
} 
  
// prints palindrome between min and max 
void countPal(int min, int max) 
{ 
    for (int i = min; i <= max; i++) 
        if (isPalindrome(i)) 
          count ++;
} 
  
// Driver program to test above function 
int main() 
{
  	int count = 0;
    countPal(a, b); 
    cout << count;
} 

Compiler output:
a.cc: In function 'void countPal(int, int)':
a.cc:21:11: error: 'count' was not declared in this scope
   21 |           count ++;
      |           ^~~~~
a.cc: In function 'int main()':
a.cc:28:14: error: 'a' was not declared in this scope
   28 |     countPal(a, b);
      |              ^
a.cc:28:17: error: 'b' was not declared in this scope
   28 |     countPal(a, b);
      |                 ^
Language: C++

#include<iostream> 
using namespace std; 
  
// A function to check if n is palindrome 
int isPalindrome(int n) 
{ 
    // Find reverse of n 
    int rev = 0; 
    for (int i = n; i > 0; i /= 10) 
        rev = rev*10 + i%10; 
  
    // If n and rev are same, then n is palindrome 
    return (n==rev); 
} 
  
// prints palindrome between min and max 
void countPal(int min, int max) 
{ 
    for (int i = min; i <= max; i++) 
        if (isPalindrome(i)) 
          count ++
} 
  
// Driver program to test above function 
int main() 
{
  	int count = 0;
    countPal(a, b); 
    cout << count;
} 

Compiler output:
a.cc: In function 'void countPal(int, int)':
a.cc:21:11: error: 'count' was not declared in this scope
   21 |           count ++
      |           ^~~~~
a.cc: In function 'int main()':
a.cc:28:14: error: 'a' was not declared in this scope
   28 |     countPal(a, b);
      |              ^
a.cc:28:17: error: 'b' was not declared in this scope
   28 |     countPal(a, b);
      |                 ^
Language: C++

#include <iostream>
using namespace std;

int main()
{
  int a, b, t, count = 0;
  cin >> a >> b;
  for (int i=a; i<b; i++) {
    int r = 0;
  	while (i != 0)
  {
    r = r * 10;
    r = r + i%10;
    t = i/10;
  }
      if (i == r) {
    count++
  }
  }
  cout << count;
 


}

Compiler output:
a.cc: In function 'int main()':
a.cc:17:12: error: expected ';' before '}' token
   17 |     count++
      |            ^
      |            ;
   18 |   }
      |   ~
Language: C++

#include <iostream>
using namespace std;

int main()
{
  int a, b, t, count = 0;
  cin >> a >> b;
  for (int i=a; i<b; i++) {
    int r = 0
  	while (i != 0)
  {
    r = r * 10;
    r = r + i%10;
    t = i/10;
  }
      if (i == r) {
    count++
  }
  }
  cout << count;
 


}

Compiler output:
a.cc: In function 'int main()':
a.cc:10:9: error: expected ',' or ';' before 'while'
   10 |         while (i != 0)
      |         ^~~~~
a.cc:17:12: error: expected ';' before '}' token
   17 |     count++
      |            ^
      |            ;
   18 |   }
      |   ~
Language: C++

#include <iostream>
using namespace std;

int main()
{
  int a, b, t, count = 0;
  cin >> a >> b;
  for (int i=a; i<b; i++) {
  	while (i != 0)
  {
    r = r * 10;
    r = r + i%10;
    t = i/10;
  }
      if (i == r) {
    count++
  }
  }
  cout << count;
 


}

Compiler output:
a.cc: In function 'int main()':
a.cc:11:5: error: 'r' was not declared in this scope
   11 |     r = r * 10;
      |     ^
a.cc:15:16: error: 'r' was not declared in this scope
   15 |       if (i == r) {
      |                ^
a.cc:16:12: error: expected ';' before '}' token
   16 |     count++
      |            ^
      |            ;
   17 |   }
      |   ~
Language: C++

int main()
{
  int a, b, t, count = 0;
  cin >> a >> b;
  for (int i=a; i<b; i++) {
  	while (i != 0)
  {
    r = r * 10;
    r = r + i%10;
    t = i/10;
  }
      if (i == r) {
    count++
  }
  }
  cout << count;
 


}

Compiler output:
a.cc: In function 'int main()':
a.cc:4:3: error: 'cin' was not declared in this scope
    4 |   cin >> a >> b;
      |   ^~~
a.cc:8:5: error: 'r' was not declared in this scope
    8 |     r = r * 10;
      |     ^
a.cc:12:16: error: 'r' was not declared in this scope
   12 |       if (i == r) {
      |                ^
a.cc:13:12: error: expected ';' before '}' token
   13 |     count++
      |            ^
      |            ;
   14 |   }
      |   ~         
a.cc:16:3: error: 'cout' was not declared in this scope; did you mean 'count'?
   16 |   cout << count;
      |   ^~~~
      |   count
Language: C++

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

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

Compiler output:
a.cc: In function 'int main()':
a.cc:9:13: error: 'a' was not declared in this scope
    9 |   for(int i=a;i<=b;i++){
      |             ^
a.cc:9:18: error: 'b' was not declared in this scope
    9 |   for(int i=a;i<=b;i++){
      |                  ^
Language: C++

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

int main() {
 int A, B;
 int c=0;
  cin >> A >> B ;
  int d=B-A+1;
  rep(i, d) {
  int e =A/10000
  int f =A%10
  int g =A/1000%10
  int h =A/10%10
 if(e == f && g == h){
 c++;
 }
 }
cout  << c << endl;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:12:3: error: expected ',' or ';' before 'int'
   12 |   int f =A%10
      |   ^~~
Language: C++

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

int main() {
 int A, B;
 int c=0;
  cin >> A >> B ;
  int d=B-A+1;
  rep(i, d) {
 if((A/10000 == A%10) && (A/1000%10 == A/10%10)){
 c++;
 }
 }
cout  << c << 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:8:3: error: 'cin' was not declared in this scope
    8 |   cin >> A >> B ;
      |   ^~~
a.cc:15:1: error: 'cout' was not declared in this scope
   15 | cout  << c << endl;
      | ^~~~
a.cc:15:15: error: 'endl' was not declared in this scope
   15 | cout  << c << endl;
      |               ^~~~
Language: C++

#include <bits/stdc++.h>
using namespace std;
#define rep(i, B-A+1) for (int i = A; i <=B; i++)

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

Compiler output:
a.cc:3:17: error: expected ',' or ')', found "-"
    3 | #define rep(i, B-A+1) for (int i = A; i <=B; i++)
      |                 ^
a.cc: In function 'int main()':
a.cc:9:7: error: 'i' was not declared in this scope
    9 |   rep(i, B-A+1) {
      |       ^
a.cc:9:3: error: 'rep' was not declared in this scope
    9 |   rep(i, B-A+1) {
      |   ^~~
Language: C++

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

int main() {
 int A, B;
 int c=0;
  cin >> A >> B ;
  rep(i, B-A+1) {
 if(A/10000 == A%10 && (A%100-n%10)/10==(A/1000)-(A/10000)*10){
 c++;
 }
 }
cout  << c << endl;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:10:31: error: 'n' was not declared in this scope
   10 |  if(A/10000 == A%10 && (A%100-n%10)/10==(A/1000)-(A/10000)*10){
      |                               ^
Language: C++

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

int main() {
 int A, B;
 int c=0;
  cin >> A >> B ;
  rep(i, B-A+1) {
 if(A/10000 == A%10 && (A%100-n%10)/10==(A/1000)-(A/10000)*10)){
 c++;
 }
 }
cout  << c << endl;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:10:31: error: 'n' was not declared in this scope
   10 |  if(A/10000 == A%10 && (A%100-n%10)/10==(A/1000)-(A/10000)*10)){
      |                               ^
a.cc:10:63: error: expected primary-expression before ')' token
   10 |  if(A/10000 == A%10 && (A%100-n%10)/10==(A/1000)-(A/10000)*10)){
      |                                                               ^
Language: C++

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

int main(){
  int a,b;
  cin >> a >> b;
  string s,r;
  int ans=0;
  for(int i=a;i<=b;i++){
    r = s = to_string(i);
    r.reverse(r.begin(),r.end());
    if(s==r)ans++;
  }
  cout << ans << endl;
}
    

Compiler output:
a.cc: In function 'int main()':
a.cc:11:7: error: 'std::string' {aka 'class std::__cxx11::basic_string<char>'} has no member named 'reverse'; did you mean 'reserve'?
   11 |     r.reverse(r.begin(),r.end());
      |       ^~~~~~~
      |       reserve
Language: C++

#include<bits/stdc++.h>
using namespace std;
bool palin(int n){
  bool flag=false;
if((n%10==n/10000)&&((n%100-n%10)/10==(n/1000)-(n/10000)*10)){flag=true;}
   return flag;
   }
int main(){
int a,b;
cin >> a>>b;
  int cnt=0;
for(int i=a;i<=b;i++){
  p=palin(i);
if(p)cnt++;}
  cout << cnt <<endl;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:13:3: error: 'p' was not declared in this scope
   13 |   p=palin(i);
      |   ^
Language: C++

#include<bits/stdc++.h>
using namespace std;
bool palin(int n){
  bool flag=false;
if((n%10==n/10000)&&((n%100-n%10)/10==(n/1000)-(n/10000)*10)){flag=true;}
   return flag;
   }
int main(){
int a,b;
cin >> a>>b;
  int cnt=0;
for(int i=a;i<=b;i++){
  p=parin(i);
if(p)cnt++;}
  cout << cnt <<endl;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:13:3: error: 'p' was not declared in this scope
   13 |   p=parin(i);
      |   ^
a.cc:13:5: error: 'parin' was not declared in this scope; did you mean 'palin'?
   13 |   p=parin(i);
      |     ^~~~~
      |     palin
Language: C++

#include<bits/stdc++.h>
using namespace std;
bool palin(int n){
  bool flag=false;
if((n%10==n/10000)&&((n%100-n%10)/10==(n/1000)-(n/10000)*10)){flag=true;}
   return flag;
   }
int main(){
int a,b;
cin >> a>>b;
  int cnt=0;
for(int i=a;i<=b;i++){
if(parin(i))cnt++;}
  cout << cnt <<endl;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:13:4: error: 'parin' was not declared in this scope; did you mean 'palin'?
   13 | if(parin(i))cnt++;}
      |    ^~~~~
      |    palin
Language: C++

#include<bits/stdc++.h>
using namespace std;
int palin(int n){
  bool flag=false;
if((n%10==n/10000)&&((n%100-n%10)/10==(n/1000)-(n/10000)*10){flag=true;}
   return flag;
   }
int main(){
int a,b;
cin >> a>>b;
  int cnt=0;
for(int i=a;i<=b;i++){
if(parin(i))cnt++;}
  cout << cnt <<endl;
}

Compiler output:
a.cc: In function 'int palin(int)':
a.cc:5:61: error: expected ';' before '{' token
    5 | if((n%10==n/10000)&&((n%100-n%10)/10==(n/1000)-(n/10000)*10){flag=true;}
      |                                                             ^
      |                                                             ;
a.cc:6:4: error: expected primary-expression before 'return'
    6 |    return flag;
      |    ^~~~~~
a.cc:5:73: error: expected ')' before 'return'
    5 | if((n%10==n/10000)&&((n%100-n%10)/10==(n/1000)-(n/10000)*10){flag=true;}
      |   ~                                                                     ^
      |                                                                         )
    6 |    return flag;
      |    ~~~~~~                                                                
a.cc:7:4: warning: no return statement in function returning non-void [-Wreturn-type]
    7 |    }
      |    ^
a.cc: In function 'int main()':
a.cc:13:4: error: 'parin' was not declared in this scope; did you mean 'palin'?
   13 | if(parin(i))cnt++;}
      |    ^~~~~
      |    palin
Language: C++

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

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

Compiler output:
a.cc: In function 'int main()':
a.cc:8:9: error: 'i' was not declared in this scope
    8 |   for(A;i<B;A++){
      |         ^
Language: C++

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

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

Compiler output:
a.cc: In function 'int main()':
a.cc:16:2: error: expected '}' at end of input
   16 | }
      |  ^
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, sum = 0;
  cin >> a >> b;
  for(int i = a; i < b; i++){
  	string n = a;
    
    
  }
  cout << sum << endl;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:8:20: error: conversion from 'int' to non-scalar type 'std::string' {aka 'std::__cxx11::basic_string<char>'} requested
    8 |         string n = a;
      |                    ^
Language: C++

#include <iostream>

using namespace std;

bool check(int x)
{
  int t=x;
  int num=0;
  while (t>0)
  {
    num = num*10 + t%10;
    t/=10;
  }
  return num==x;
}

int main()
{
  int a,b;
  cin >> a >> b;
  int ans=0;
  for(int i=a; i<=b; ++i)
    if (check(i)) ans++:
  cout << ans;
  return 0;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:23:24: error: expected ';' before ':' token
   23 |     if (check(i)) ans++:
      |                        ^
      |                        ;
Language: C++

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

int main(){
  int A,B,count=0,temp;
  int d5,d4,d3,d2,d1;
  
  cin >> A >> B;
  
  for(int i=A;i<=B;i++){
    temp = i;
	d5 = temp/10000;
    d4 = (temp=temp-d5*10000)/1000;
    d3 = (temp=temp-d4*1000)/100;
    d2 = (tmep=temp-d3*100)/10;
    d1 = (temp=temp-d2*10);
    if(d5==d1 && d4==d2) count++;
  }
  
  cout << count << endl;
}
  
  

Compiler output:
a.cc: In function 'int main()':
a.cc:15:11: error: 'tmep' was not declared in this scope; did you mean 'temp'?
   15 |     d2 = (tmep=temp-d3*100)/10;
      |           ^~~~
      |           temp
Language: C++

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

int main(){
  int A,B,count=0,temp;
  int d5,d4,d3,d2,d1;
  
  cin >> A >> B;
  
  for(int i=A;i<=B;i++){
    temp = i;
	d5 = temp/10000;
    d4 = (temp=temp-d5*10000)/1000;
    d3 = (temp=temp-d4*1000)/100;
    d2 = (tmep=temp-d3*100)/10;
    d1 = (temp=temp-d2*10);
    if(d5==d1 && d4==d2) count++;
  }
  
  cout << count << 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:8:3: error: 'cin' was not declared in this scope
    8 |   cin >> A >> B;
      |   ^~~
a.cc:15:11: error: 'tmep' was not declared in this scope; did you mean 'temp'?
   15 |     d2 = (tmep=temp-d3*100)/10;
      |           ^~~~
      |           temp
a.cc:20:3: error: 'cout' was not declared in this scope; did you mean 'count'?
   20 |   cout << count << endl;
      |   ^~~~
      |   count
a.cc:20:20: 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,a,n,x1,x2,x3,x4;
  int count=0;
  cin >> A >> B;
  n = B - A + 1;
  a=A;
  for (int i = 0;i< n; i++){
    x4=a%10;
    a=a/10;
    x3=a&10;
    a=a/100;
    x2=a&10;
    a=a/10;
    x1=a%10;
    if(!(x1-x4||x2-x3)){
      COUNR +=1;
    }
    A=a+i+1;
  }
  cout << count;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:19:7: error: 'COUNR' was not declared in this scope
   19 |       COUNR +=1;
      |       ^~~~~
Language: C++

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

int main(){
  int A, B;
  int count = 0;
  cin >> A >> B;
  for(int i =A; i < B+1;i++){
    int p, q,r,s,t =0;
    p = i/10000;
    q =(i - p*10000)/1000;
    r = (i- p*10000 - q*1000) / 100;
    s= (i- p*10000 - q*1000 -r*100) /10;
    t= i- p*10000 - q*1000 -r*100 - s*10;
    if (p==t&&q==s){
      count ++;
    }
  }
  cout << counr;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:19:11: error: 'counr' was not declared in this scope; did you mean 'count'?
   19 |   cout << counr;
      |           ^~~~~
      |           count
Language: C++

#include <stdio.h>


int vet[6], invert[6];

int olhaso(int k) {
	int n = k, t;
	for(int i = 0; i < 5; ++i) {
		t = n % 10;
		n = n/10;
		vet[4-i] = t;
		invert[i] = t;

		return (vet[0]== invert[0] && vet[1] == invert[1]);
}
int main() {
	 int a, b, quant_pali = 0;
	 scanf("%d %d", &a, &b);
	 for(int i = a; i <= b; ++i) {
	 	if(olhaso(i))
	 		++quant_pali;
	 }
	 printf("%d\n", quant_pali);
	return 0;
}

Compiler output:
a.cc: In function 'int olhaso(int)':
a.cc:16:9: warning: empty parentheses were disambiguated as a function declaration [-Wvexing-parse]
   16 | int main() {
      |         ^~
a.cc:16:9: note: remove parentheses to default-initialize a variable
   16 | int main() {
      |         ^~
      |         --
a.cc:16:9: note: or replace parentheses with braces to value-initialize a variable
a.cc:16:12: error: a function-definition is not allowed here before '{' token
   16 | int main() {
      |            ^
a.cc:25:2: error: expected '}' at end of input
   25 | }
      |  ^
a.cc:6:19: note: to match this '{'
    6 | int olhaso(int k) {
      |                   ^
a.cc:25:2: warning: control reaches end of non-void function [-Wreturn-type]
   25 | }
      |  ^
Language: C++

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

int vet[6], invert[6];

int olhaso(int k) {
	int n = k, t;
	for(int i = 0; i < 5; ++i) {
		t = n % 10;
		n = n/10;
		vet[4-i] = t;
		invert[i] = t;
	}
return (vet[0]== invert[0] && vet[1] == invert[1]);

int main() {
	 int a, b, quant_pali = 0;
	 scanf("%d %d", &a, &b);
	 for(int i = a; i <= b; ++i) {
	 	if(olhaso(i))
	 		++quant_pali;
	 }
	 printf("%d\n", quant_pali);
	return 0;
}

Compiler output:
a.cc: In function 'int olhaso(int)':
a.cc:16:9: warning: empty parentheses were disambiguated as a function declaration [-Wvexing-parse]
   16 | int main() {
      |         ^~
a.cc:16:9: note: remove parentheses to default-initialize a variable
   16 | int main() {
      |         ^~
      |         --
a.cc:16:9: note: or replace parentheses with braces to value-initialize a variable
a.cc:16:12: error: a function-definition is not allowed here before '{' token
   16 | int main() {
      |            ^
a.cc:25:2: error: expected '}' at end of input
   25 | }
      |  ^
a.cc:6:19: note: to match this '{'
    6 | int olhaso(int k) {
      |                   ^
Language: C

#include <stdio.h>
int main (){

    int A = 0 , B = 0 , number = 0 ;
    int answer = 0;
    int D[5];


    scanf("%d %d",&A,&B);

    for (int i = A; i <= B ; ++i ){
        number = i;
        for (int j = 4; j >= 0;--j){
            D[j] = number % 10;
            number /= 10;
            }
        if (D[0] == D[4] && D[1]== D[3] )
            ++answer;
    }

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

return 0;
}
int eh_palindromo(int x){
    char str[10]
    sprintf(str,"%d",x);
    printf("==> %s\n",str );

    return (D[0] == D[4] && D[1]== D[3] );
}


Compiler output:
main.c: In function 'eh_palindromo':
main.c:27:5: error: expected '=', ',', ';', 'asm' or '__attribute__' before 'sprintf'
   27 |     sprintf(str,"%d",x);
      |     ^~~~~~~
main.c:27:13: error: 'str' undeclared (first use in this function)
   27 |     sprintf(str,"%d",x);
      |             ^~~
main.c:27:13: note: each undeclared identifier is reported only once for each function it appears in
main.c:30:13: error: 'D' undeclared (first use in this function)
   30 |     return (D[0] == D[4] && D[1]== D[3] );
      |             ^
Language: C

#include <stdio.h>

int main(void){
	int a,b,res=0;
	scanf("%d %d", &a, &b);

	for(int a; a<b; a++)
		if(a//10000==a%10 && (a//1000)%10==(a//10)%10) res++;

	fprintf(stdout, "%d\n",res);

	return 0;
}

Compiler output:
main.c: In function 'main':
main.c:8:21: error: expected ')' before 'fprintf'
    8 |                 if(a//10000==a%10 && (a//1000)%10==(a//10)%10) res++;
      |                   ~ ^
      |                     )
    9 | 
   10 |         fprintf(stdout, "%d\n",res);
      |         ~~~~~~~      
main.c:13:1: error: expected expression before '}' token
   13 | }
      | ^
Language: C++

#include <bits/stdc++.h>
using namespace std;
 
int main() {
  int A,B;
  cin >> A >> B;

  int q;
  int i;
  int count = 0;
  for( i=A; i < B + 1; i++){
    
    int note = i;
    while(note > 0){
      
      int digit = 1;
      q = note;
      
	    while(){
          if(digit == 1)	bottom = q % 10;
          q /= 10;
          if(q < 10){
            head = q;
            break;
          }
          
          digit++;
        }
      
      if(head != bottom)	break;
      
      else{
        q = note;
        q /= head * pow(10,digit);
        q /= 10;
        note = q;
      }
      
      if(note < 10)	count++;
    
    }
  }
  
  cout << count << endl;
 
}

Compiler output:
a.cc: In function 'int main()':
a.cc:19:19: error: expected primary-expression before ')' token
   19 |             while(){
      |                   ^
a.cc:20:33: error: 'bottom' was not declared in this scope
   20 |           if(digit == 1)        bottom = q % 10;
      |                                 ^~~~~~
a.cc:23:13: error: 'head' was not declared in this scope; did you mean 'read'?
   23 |             head = q;
      |             ^~~~
      |             read
a.cc:30:10: error: 'head' was not declared in this scope; did you mean 'read'?
   30 |       if(head != bottom)        break;
      |          ^~~~
      |          read
a.cc:30:18: error: 'bottom' was not declared in this scope
   30 |       if(head != bottom)        break;
      |                  ^~~~~~
Language: C++

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

int main(){
  int L,R
  cin>>L>>R;
  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>=L && x<=R){
          ans++;
        }
      }
    }
  }
  cout<<ans<<endl;
  return 0;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:7:3: error: expected initializer before 'cin'
    7 |   cin>>L>>R;
      |   ^~~
a.cc:13:23: error: 'R' was not declared in this scope
   13 |         if(x>=L && x<=R){
      |                       ^
Language: Java

import java.util.Scanner;

public class Main {
    public static void main(String[] args) {
      int A, B, numOfPalindromic = 0;
      Scanner sc = new Scanner(System.in);
      A = sc.nextInt(); B = sc.nextInt();

      for(; A<=B; A++) if ((A/10000 == A%10) && ((A/1000)%10 == (A/10)%10) numOfPalindromic++;
      System.out.println(numOfPalindromic);
    }
}


Compiler output:
Main.java:9: error: ')' expected
      for(; A<=B; A++) if ((A/10000 == A%10) && ((A/1000)%10 == (A/10)%10) numOfPalindromic++;
                                                                          ^
1 error
Language: Java

public class Main {
    public static void main(String[] args) {

      int A, B, numOfPalindromic = 0;
      Scanner sc = new Scanner(System.in);
      A = sc.nextInt(); B = sc.nextInt();

      for(; A<=B; A++) if ((A/10000 == A%10) && ((A/1000)%10 == (A%100)/10)) numOfPalindromic++;
      System.out.println(numOfPalindromic);

    }
}


Compiler output:
Main.java:5: error: cannot find symbol
      Scanner sc = new Scanner(System.in);
      ^
  symbol:   class Scanner
  location: class Main
Main.java:5: error: cannot find symbol
      Scanner sc = new Scanner(System.in);
                       ^
  symbol:   class Scanner
  location: class Main
2 errors
Language: C++

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

int main(){
	int A,B,x;
  cin>>A>>B;
  for(A;i<B+1;A++){
  	 if(A/10000==A%10&&A/1000%10==A%100/10) x++;
     }
  	  cout<<x;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:7:9: error: 'i' was not declared in this scope
    7 |   for(A;i<B+1;A++){
      |         ^
Language: C++

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

int main(){
	int A,B,x;
  cin>> A>> B;
  for(int i=A;i<B+1;i++){
  	 if((i/10000 == i%10 && i/1000&10 == i%100/10) x++;
     }
  	  cout << x;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:8:55: error: expected ';' before 'x'
    8 |          if((i/10000 == i%10 && i/1000&10 == i%100/10) x++;
      |                                                       ^~
      |                                                       ;
a.cc:9:6: error: expected primary-expression before '}' token
    9 |      }
      |      ^
a.cc:8:60: error: expected ')' before '}' token
    8 |          if((i/10000 == i%10 && i/1000&10 == i%100/10) x++;
      |            ~                                               ^
      |                                                            )
    9 |      }
      |      ~                                                      
a.cc:9:6: error: expected primary-expression before '}' token
    9 |      }
      |      ^
Language: C++

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

int main(){
	int A,B,x;
  cin>>A>>B;
  for(int i=A;i<B+1;i++){
  	 if((i/10000 == i%10 && i/1000&10 == i%100/10) x++;
     }
  	  cout<<x;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:8:55: error: expected ';' before 'x'
    8 |          if((i/10000 == i%10 && i/1000&10 == i%100/10) x++;
      |                                                       ^~
      |                                                       ;
a.cc:9:6: error: expected primary-expression before '}' token
    9 |      }
      |      ^
a.cc:8:60: error: expected ')' before '}' token
    8 |          if((i/10000 == i%10 && i/1000&10 == i%100/10) x++;
      |            ~                                               ^
      |                                                            )
    9 |      }
      |      ~                                                      
a.cc:9:6: error: expected primary-expression before '}' token
    9 |      }
      |      ^
Language: C++

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

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

Compiler output:
a.cc: In function 'int main()':
a.cc:9:11: error: lvalue required as left operand of assignment
    9 |       if(i/1000 = i%100) x++;
      |          ~^~~~~
a.cc: At global scope:
a.cc:13:1: error: expected declaration before '}' token
   13 | }
      | ^
Language: C++

int main() {
	int a, b;
	cin >> a >> b;
	int count = 0;
	while (a != b) {
		int t = a;
		int remaind = 0;
		int reverse = 0;
		while(t!=0){
		remaind = t% 10;
		reverse = reverse * 10 + remaind;
		t /= 10;
	}
		//cout << reverse << endl;
		if (a == reverse)count++;
		a += 1;
	}
	cout << count << endl;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:3:9: error: 'cin' was not declared in this scope
    3 |         cin >> a >> b;
      |         ^~~
a.cc:18:9: error: 'cout' was not declared in this scope; did you mean 'count'?
   18 |         cout << count << endl;
      |         ^~~~
      |         count
a.cc:18:26: error: 'endl' was not declared in this scope
   18 |         cout << count << endl;
      |                          ^~~~
Language: Java

import java.util.*;

public class Main {
  public static void main(String[] args) {
    Scanner sc = new Scanner(System.in);
    
    int i;
    int a = sc.nextInt();
    int b = sc.nextInt();
    char[] c = null;
    
    int count = 0;
    for(int i = a ; i <= b ; i++){
      c = String.valueOf(i).toCharArray();
      if( c[0] == c[4] && c[1] == c[3]){
        count++;
      }
    }
    System.out.println(count);
  }
}


Compiler output:
Main.java:13: error: variable i is already defined in method main(String[])
    for(int i = a ; i <= b ; i++){
            ^
1 error
Language: C++

#include <bits/stdc++.h>
using namespace std;
 
int main() {
  int A, B;
  cin>>A>>B;
  int count=0;
  for(int i=0;i<B-A+1){
    int k=i+A;
    if(k/10000==k%10&&k/1000%10==k%100/10) ++count;
  }
  cout<<count<<endl;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:8:22: error: expected ';' before ')' token
    8 |   for(int i=0;i<B-A+1){
      |                      ^
      |                      ;
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 i,a,b,d,e;
    a = i/10000%10;
    b = i/1000%10;

    d = i/10%10;
    e = i%10;
    if(a==e && b==d) count++;
  }
  cout << count << endl;
}


Compiler output:
a.cc: In function 'int main()':
a.cc:10:9: error: redeclaration of 'int i'
   10 |     int i,a,b,d,e;
      |         ^
a.cc:9:11: note: 'int i' previously declared here
    9 |   for(int i=A; i <= B; i++){
      |           ^
Language: C++

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

int main() {
  int A, B, Rn, S;
  cin >> A >> B;
  
  for (int i=1; i<10; i++) {
    for (int j=0; j<10; j++) {
      for (int k=0; k<10; k++) {
        Rn = 10000*i+1000*j+100*k+10*j+i
        if (Rn >= A && Rn <= B) {
          S += 1
        }
      }
    }
  }
  
  cout << S << endl;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:11:41: error: expected ';' before 'if'
   11 |         Rn = 10000*i+1000*j+100*k+10*j+i
      |                                         ^
      |                                         ;
   12 |         if (Rn >= A && Rn <= B) {
      |         ~~
Language: C++

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

int main() {
	int A, B;
  	cin >> A >> B;
  	
  	int j = 0;
  	for(int i = 0; i < A+B+1; i++) {
      	int c, d, e, f, g
    	c = (A + i) % 10;
        d = (A + i) % 100 - c;
      	e = (A + i) % 1000 - (d + c);
       	f = (A + i) % 10000 - (e + d + c);
      	g = (A + i) % 100000 - (f + e + d + c);
      
      	if (g == c && f == d) {
        	j +=1;
        }    	
    }
  	cout << j << endl;
}


Compiler output:
a.cc: In function 'int main()':
a.cc:11:9: error: expected initializer before 'c'
   11 |         c = (A + i) % 10;
      |         ^
a.cc:15:9: error: 'g' was not declared in this scope
   15 |         g = (A + i) % 100000 - (f + e + d + c);
      |         ^
Language: C++

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

int main() {
	int A, B;
  	cin >> A >> B;
  	
  	int j = 0;
  	for(int i = 0; i < A+B+1; i++) {
    	c = (A + i) % 10;
        d = (A + i) % 100 - c;
      	e = (A + i) % 1000 - (d + c);
       	f = (A + i) % 10000 - (e + d + c);
      	g = (A + i) % 100000 - (f + e + d + c);
      
      	if (g == c && f == d) {
        	j +=1;
        }    	
    }
  	cout << j << endl;
}


Compiler output:
a.cc: In function 'int main()':
a.cc:10:9: error: 'c' was not declared in this scope
   10 |         c = (A + i) % 10;
      |         ^
a.cc:11:9: error: 'd' was not declared in this scope
   11 |         d = (A + i) % 100 - c;
      |         ^
a.cc:12:9: error: 'e' was not declared in this scope
   12 |         e = (A + i) % 1000 - (d + c);
      |         ^
a.cc:13:9: error: 'f' was not declared in this scope
   13 |         f = (A + i) % 10000 - (e + d + c);
      |         ^
a.cc:14:9: error: 'g' was not declared in this scope
   14 |         g = (A + i) % 100000 - (f + e + d + c);
      |         ^
Language: C++

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

int main() {
	int A, B;
  	cin >> A >> B;
  	
  	int j = 0;
  	for(int i = 0, i < A+B+1, i++) {
    	c = (A + i) % 10;
        d = (A + i) % 100 - c;
      	e = (A + i) % 1000 - (d + c);
       	f = (A + i) % 10000 - (e + d + c);
      	g = (A + i) % 100000 - (f + e + d + c);
      
      	if (g == c && f == d) {
        	j +=1;
        }    	
    }
  	cout << j << endl;
}


Compiler output:
a.cc: In function 'int main()':
a.cc:9:25: error: expected ';' before '<' token
    9 |         for(int i = 0, i < A+B+1, i++) {
      |                         ^~
      |                         ;
a.cc:9:26: error: expected primary-expression before '<' token
    9 |         for(int i = 0, i < A+B+1, i++) {
      |                          ^
a.cc:9:38: error: expected ';' before ')' token
    9 |         for(int i = 0, i < A+B+1, i++) {
      |                                      ^
      |                                      ;
a.cc:10:9: error: 'c' was not declared in this scope
   10 |         c = (A + i) % 10;
      |         ^
a.cc:11:9: error: 'd' was not declared in this scope
   11 |         d = (A + i) % 100 - c;
      |         ^
a.cc:12:9: error: 'e' was not declared in this scope
   12 |         e = (A + i) % 1000 - (d + c);
      |         ^
a.cc:13:9: error: 'f' was not declared in this scope
   13 |         f = (A + i) % 10000 - (e + d + c);
      |         ^
a.cc:14:9: error: 'g' was not declared in this scope
   14 |         g = (A + i) % 100000 - (f + e + d + c);
      |         ^
Language: C++

#include <bits/stdc++.h>
using namespace std;
int main(){
  int A,B,n1=0,n2=0,n4=0,n5=0;
  int C,D;
  cin >> A >> B;
  int x =0;
  for(int N=A;N<=B;N++){
 	n1==N%10;
    n2==(N/10)%10;
    n4==(N/1000)%10;
    n5==(N/10000)%10;
    C=n1+10*n2;
    D=n5+10*n4;
    if(C==D)
      x++
  }
  cout << x << endl;
}
  
  

Compiler output:
a.cc: In function 'int main()':
a.cc:16:10: error: expected ';' before '}' token
   16 |       x++
      |          ^
      |          ;
   17 |   }
      |   ~
Language: C++

#include <bits/stdc++.h>
using namespace std;
int main(){
  int A,B,L,R;
  cin >> A >> B;
  int x =0;
  for(int N=A;N<=B;N++){
 	L=N/1000;
    R=N%100;
    if(abs(L-R)%11=0)
      x++;
  }
  cout << x << endl;
}
  
  

Compiler output:
a.cc: In function 'int main()':
a.cc:10:16: error: lvalue required as left operand of assignment
   10 |     if(abs(L-R)%11=0)
      |        ~~~~~~~~^~~
Language: C++

#include <iostream>
using namespace std;

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


Compiler output:
a.cc: In function 'int main()':
a.cc:9:18: error: expected primary-expression before ',' token
    9 |     int s = i%10;, t = i/10000%10;
      |                  ^
a.cc:9:20: error: 't' was not declared in this scope
    9 |     int s = i%10;, t = i/10000%10;
      |                    ^
a.cc:10:22: error: 'v' was not declared in this scope
   10 |     int u = i/10%10; v = i/1000%10;
      |                      ^
Language: C++

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

int main() {
  int N = 0, A, B;
  cin >> A >> B;
  for (int i = A; i <= B; i++) {
  int s1, s2, s3, s4;
  s1 = i / 10000;
  s2 = i % 10000 / 1000;
  s3 = i % 10000 % 1000 % 100 / 10;
  s4 = i % 10000 % 1000 % 100 % 10;
    if(s1 == s2 && s3 == s4)
    N += 1
  }
  cout << N;
}


Compiler output:
a.cc: In function 'int main()':
a.cc:14:11: error: expected ';' before '}' token
   14 |     N += 1
      |           ^
      |           ;
   15 |   }
      |   ~
Language: C++

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

int main() {
  int N = 0, A, B;
  cin >> A >> B;
  for (int i = A; i =< B; i++) {
  int s1, s2, s3, s4;
  s1 = i / 10000;
  s2 = i % 10000 / 1000;
  s3 = i % 10000 % 1000 % 100 / 10;
  s4 = i % 10000 % 1000 % 100 % 10
    if(s1 == s2 && s3 == s4)
    N += 1
  }
  cout << N;
}


Compiler output:
a.cc: In function 'int main()':
a.cc:7:22: error: expected primary-expression before '<' token
    7 |   for (int i = A; i =< B; i++) {
      |                      ^
a.cc:12:35: error: expected ';' before 'if'
   12 |   s4 = i % 10000 % 1000 % 100 % 10
      |                                   ^
      |                                   ;
   13 |     if(s1 == s2 && s3 == s4)
      |     ~~
Language: C++

#include <iostream>
#include <vector>
#include <cmath>
#include <algorithm>
#include <iomanip>
#include <cstring>
#define rep(i, N) for (int i = 0; i < (int)N; i++)
using namespace std;
typedef long long ll;
const ll LLINF = 9223372036854775807;
const int MOD = 1000000007;

int main() {
  int A, B; cin >> A >> B;

  int result = 0;
  for (int i=A; i<=B; i++) {
    string num = to_string(i);
    if (n[0]==n[4]&&n[1]==n[3]) result++;
  }
  cout << result << endl;
  return 0;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:19:9: error: 'n' was not declared in this scope
   19 |     if (n[0]==n[4]&&n[1]==n[3]) result++;
      |         ^
Language: C++

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

int main() {
  int A, B, i, count;
  int n1, n2, n3, n4, n5;
  count = 0;
  cin >> A >> B;
  i = A;
  for (; i < B; i++) {
    n5 = i/10000;
    n4 = (i - n5*10000)/1000;
    n3 = (i - n5*10000 - n4*1000)/100;
    n2 = (i - n5*10000 - n4*1000 - n3*100)/10;
    n1 = (i - n5*10000 - n4*1000 - n3*100 - n2*10);
    if (n1 == n5 && n2 == n4) {
      count++
    }
  }
  cout << count << endl;
}






Compiler output:
a.cc: In function 'int main()':
a.cc:17:14: error: expected ';' before '}' token
   17 |       count++
      |              ^
      |              ;
   18 |     }
      |     ~
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[0]==i[4] && i[1]==i[3]){
      c++;
    }
  }
  cout<<c<<endl;
}


Compiler output:
a.cc: In function 'int main()':
a.cc:7:9: error: invalid types 'int[int]' for array subscript
    7 |     if(i[0]==i[4] && i[1]==i[3]){
      |         ^
a.cc:7:15: error: invalid types 'int[int]' for array subscript
    7 |     if(i[0]==i[4] && i[1]==i[3]){
      |               ^
a.cc:7:23: error: invalid types 'int[int]' for array subscript
    7 |     if(i[0]==i[4] && i[1]==i[3]){
      |                       ^
a.cc:7:29: error: invalid types 'int[int]' for array subscript
    7 |     if(i[0]==i[4] && i[1]==i[3]){
      |                             ^
Language: C++

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

int main() {
  int a,b,s=0;
  cin>>a>>b;
  for(int i=a; i<=b; i++){
    if(i%10==i/10000 && (i- (i/10000)*10000)/1000==(i%100-i%10)/10){
      s+=1;
  }
    cout<<s;
}

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

#include <iostream>
#include <iomanip>
#include <cmath>
#include <string>
#include <vector>
#include <set>
#include <map>
#include <queue>
#include <numeric>
#include <random>
#include <algorithm>
#include <functional>

using namespace std;
typedef long long ll;

const int INF = (1 << 30) - 1;
const ll INFLL= (1LL << 61) - 1;
const int MOD = 1000000007;
#define ALL(a) (a).begin(),(a).end()
#define rALL(a) (a).rbegin(),(a).rend()
#define FOR(i,a,b) for(int i=(a);i<(b);++i)
#define REP(i,n) FOR(i,0,n)

int main(){
  cin.tie(nullptr);
  ios::sync_with_stdio(false);
  int A,B,ans=0;
  cin>>A>>B;
  FOR(i,A,B+1){
    string s=to_string(i);
    if(s[0]==s[4]&&s[1]==s[3])ans++
  }
  cout<<ans<<endl;
}


Compiler output:
a.cc: In function 'int main()':
a.cc:32:36: error: expected ';' before '}' token
   32 |     if(s[0]==s[4]&&s[1]==s[3])ans++
      |                                    ^
      |                                    ;
   33 |   }
      |   ~
Language: Java


import java.util.Scanner;

public class Main0{
    public static void main(String[] args){
        Scanner sc = new Scanner(System.in);
    	int pal = 0;
        int d1, d2, d4, d5;
        int x = sc.nextInt();
        int y = sc.nextInt();
        for(int i = x; i <= y; i++){
            d1 = i/10000;
            d2 = (i/1000)%10;
            d4 = (i%100)/10;
            d5 = i%10;
            if(d1 == d5 && d2 == d4)
                pal++;
        }
      	System.out.println(pal);
    }
}

Compiler output:
Main.java:4: error: class Main0 is public, should be declared in a file named Main0.java
public class Main0{
       ^
1 error
Language: C++

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

int main() {
  int A, B;
  cin >> A >> B;
  int j=0;

  // ここにプログラムを追記
  for (int i=A; i<B+1; ++i) {
    N5 = (i-i%10000)/10000;
    N4 = (i%10000-i%1000)/1000;
    N3 = (i%1000-i%100)/100;
    N2 = (i%100-i%10)/10;
    N1 = i%10;
    if (N5 == N1 && N4 == N2) {
      j += 1;
    }
  }
  cout << j << endl;
}


Compiler output:
a.cc: In function 'int main()':
a.cc:11:5: error: 'N5' was not declared in this scope
   11 |     N5 = (i-i%10000)/10000;
      |     ^~
a.cc:12:5: error: 'N4' was not declared in this scope
   12 |     N4 = (i%10000-i%1000)/1000;
      |     ^~
a.cc:13:5: error: 'N3' was not declared in this scope
   13 |     N3 = (i%1000-i%100)/100;
      |     ^~
a.cc:14:5: error: 'N2' was not declared in this scope
   14 |     N2 = (i%100-i%10)/10;
      |     ^~
a.cc:15:5: error: 'N1' was not declared in this scope; did you mean 'y1'?
   15 |     N1 = i%10;
      |     ^~
      |     y1
Language: C++

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

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

Compiler output:
a.cc: In function 'int main()':
a.cc:14:12: error: expected ';' before '}' token
   14 |       sum++
      |            ^
      |            ;
   15 |     }
      |     ~
Language: C++

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

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

Compiler output:
a.cc: In function 'int main()':
a.cc:13:15: error: lvalue required as left operand of assignment
   13 |     if (a = d && b = c){
      |             ~~^~~~
a.cc:14:12: error: expected ';' before '}' token
   14 |       sum++
      |            ^
      |            ;
   15 |     }
      |     ~
Language: C++

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

int main(){
  
  int A,B,t,k,s=0;
  cin >> A >>B;
  
  for(int i=A; i<=B,i++){
    
    //桁数判定
    for(j=1;j<=i,j*=10){
      s++;
      t = j;
      cout << i<<j <<endl;
    }
  }
}
   

Compiler output:
a.cc: In function 'int main()':
a.cc:9:24: error: expected ';' before ')' token
    9 |   for(int i=A; i<=B,i++){
      |                        ^
      |                        ;
a.cc:12:9: error: 'j' was not declared in this scope
   12 |     for(j=1;j<=i,j*=10){
      |         ^
a.cc:12:23: error: expected ';' before ')' token
   12 |     for(j=1;j<=i,j*=10){
      |                       ^
      |                       ;
Language: C++

#include <bits/stdc++.h>
using namespace std;
 
int main(){
  int A, B answer;
  cin >> A >> B;
  //100で割ったものを引いて、基本値を出す。
  //例 31415 92653→612
  answer = tempB - tempA;
  //例 31315→31の逆13が範囲に入るか確認
  int tempA1, tempA2, tempA3;
  tempA1 = A % 100;   // 15
  tempA2 = A / 1000;  // 31
  tempA3 = (tempA2 / 10) + (tempA2 % 10) * 10; //13
  if(tempA1 >= tempA3)
  {
    answer++;
  }
  cout << answer << endl;
}


Compiler output:
a.cc: In function 'int main()':
a.cc:5:12: error: expected initializer before 'answer'
    5 |   int A, B answer;
      |            ^~~~~~
a.cc:6:15: error: 'B' was not declared in this scope
    6 |   cin >> A >> B;
      |               ^
a.cc:9:3: error: 'answer' was not declared in this scope
    9 |   answer = tempB - tempA;
      |   ^~~~~~
a.cc:9:12: error: 'tempB' was not declared in this scope
    9 |   answer = tempB - tempA;
      |            ^~~~~
a.cc:9:20: error: 'tempA' was not declared in this scope; did you mean 'tempnam'?
    9 |   answer = tempB - tempA;
      |                    ^~~~~
      |                    tempnam
Language: C++

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

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

Compiler output:
a.cc: In function 'int main()':
a.cc:7:12: error: expected ';' before 'for'
    7 |   count = 0
      |            ^
      |            ;
    8 |   for (int i=A; i<B+1; i++) {
      |   ~~~       
a.cc:8:17: error: 'i' was not declared in this scope
    8 |   for (int i=A; i<B+1; i++) {
      |                 ^
Language: C++

#include <bits/stdc++.h>
using namespace std;
 
int main() {
  
  int A,B;
  cin >>A >>B;
  
  int i=A,j=0;
  while(i <=B){
    bool a=0, b=0;
    a = (i%10 == (i - i%10000)/10000);
    b = ((i%100 - i%10)/10 == (i%10000 - i%1000)/1000);
    
    if(a && b){
      j++;
      i++;
    }
    else{
      i++;
    }
  }

Compiler output:
a.cc: In function 'int main()':
a.cc:22:4: error: expected '}' at end of input
   22 |   }
      |    ^
a.cc:4:12: note: to match this '{'
    4 | int main() {
      |            ^