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

    import java.util.Scanner;
     
    public class Solution{
      public static void main(String[] args){
        
        Scanner scan = new Scanner(System.in);
        
        String word = scan.nextLine();
        int length = word.length();
        
        if (isPalindrome(word) && isPalindrome(word.substring(0, (length-1)/2)) && isPalindrome(word.substring(((length+3)/2)-1, length)){
          System.out.println("Yes");
        }
        else {
          System.out.println("No");
        }
      }
      
      public static boolean isPalindrome(String string){
        for(int i = 0; i < string.length()/2; i++){
          if (Character.compare(string[i], string[string.length()-1-i] != 0)){
            return false;
          }
        }
        return true;
      }
    }

Compiler output:
Main.java:11: error: ')' expected
        if (isPalindrome(word) && isPalindrome(word.substring(0, (length-1)/2)) && isPalindrome(word.substring(((length+3)/2)-1, length)){
                                                                                                                                         ^
1 error
Language: Java

import java.util.Scanner;

public class Solution{
  public static void main(String[] args){
    
    Scanner scan = new Scanner(System.in);
    
    String word = scan.nextLine();
    int length = word.length();
    
    if (isPalindrome(word) && isPalindrome(word.substring(0, (length-1)/2)) && isPalindrome(word.substring(((length+3)/2)-1, length){
      System.out.println("Yes");
    }
    else {
      System.out.println("No");
    }
  }
  
  public static boolean isPalindrome(String string){
    for(int i = 0; i < string.length()/2; i++){
      if (Character.compare(string[i], string[string.length()-1-i] != 0){
        return false;
      }
    }
    return true;
  }
}

Compiler output:
Main.java:11: error: ')' or ',' expected
    if (isPalindrome(word) && isPalindrome(word.substring(0, (length-1)/2)) && isPalindrome(word.substring(((length+3)/2)-1, length){
                                                                                                                                    ^
Main.java:21: error: ')' expected
      if (Character.compare(string[i], string[string.length()-1-i] != 0){
                                                                        ^
2 errors
Language: C++

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

int main()
{
  string s;
  int n,ans;
  ans=1;
  cin>>s;
  for(int i=0;i<s.size();i++)
  {
    if(s.at(i)==s.at(s.size()-i-1))
    {
      if(i<s.size()/2)
      {
        if(s.at(i)!=s.at(s.size()/2-1-ai))
        {
          ans=0;
          break;
        }
      }
      else if(i>s.size()/2)
      {
        if(s.at(i)!=s.at(s.size()*3/2-i))
        {
          ans=0;
          break;
        }
      }
    }
    else
    {
      ans=0;
      break;
    }
  }
  if(ans==1)
    cout<<"Yes"<<endl;
  else
    cout<<"No"<<endl;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:16:39: error: 'ai' was not declared in this scope; did you mean 'i'?
   16 |         if(s.at(i)!=s.at(s.size()/2-1-ai))
      |                                       ^~
      |                                       i
Language: C++

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

int main() {
  string S;
  int N, a, b;
  cin >> S;
  N=S.size();
  a=0;
  b=0;
  vector<string> T(N);
  vector<string> U(N);
  for (int i=0; i<N; i++) {
    T[i]=S.at(i);
    U[i]=S.at(N-1-i);
  }
  for (int j=0; j<N; j++) {
    if (T[j]==U[j]) {
      a=a+1;
    }
  }
  vector<string> V((N-1)/2);
  for (int k=0; k<(N-1)/2; k++) {
    V[k]=S.at((N-3)/2-i);
  }
  for (int l=0; l<(N-1)/2; l++) {
    if (T[l]==V[l]) {
      b=b+1;
    }
  }
  if (a==N && b==(N-1)/2) {
    cout << "Yes" << endl;
  }
  else {
    cout << "No" << endl;
  }
}

Compiler output:
a.cc: In function 'int main()':
a.cc:27:23: error: 'i' was not declared in this scope
   27 |     V[k]=S.at((N-3)/2-i);
      |                       ^
Language: Java

import java.util.*;

public class Main {
	public static void main(String[] args) throws Exception{
		Scanner scn = new Scanner(System.in);
		String s = scn.next();
      	int check = 0;
      	String[] list = s.split("");
      	String[] list1 = new String[s.length()];
      	for(int i=0; i<s.length(); ++i){
          list1[s.length()-(1+i)] = list[i];
        }
      	int check1 = 0;
      	for(int i=0; i<s.length(); ++i){
          if(!(list[i].equals(list1[i]))){
            check1 = 1;
          }
        }
      	if(check1==0){
          check = check + 1;
        }
      	int num2 = (s.length()-1)/2;
      	String[] list2 = new String[num2];
      	for(int i=0; i<num2; ++i){
          list2[i] = list[i];
        }
      	String[] list2a = new String[num2];
      	for(int i=0; i<num2; ++i){
          list2a[num2-(1+i)] = list2[i];
        }
      	int check2 = 0;
      	for(int i=0; i<num2; ++i){
          if(!(list2[i].equals(list2a[i]))){
            check2 = 1;
          }
        }
      	if(check2==0){
          check = check + 1;
        }
      	int num3 = 1+s.length()-(s.length()+3)/2;
      	String[] list3 = new String[num3];
      	for(int i=0; i<num3; ++i){
          list3[] = list[((s.length()+3)/2-1)+i];
        }
      	String[] list3a = new String[num3];
      	for(int i=0; i<num3; ++i){
          list3a[num3-(1+i)] = list3[i];
        }
      	int check3 = 0;
      	for(int i=0; i<num2; ++i){
          if(!(list3[i].equals(list3a[i]))){
            check3 = 1;
          }
        }
      	if(check3==0){
          check = check + 1;
        }
      	if(check==3){
          System.out.println("Yes");
        }else{
          System.out.println("No");
        }
	}
}

Compiler output:
Main.java:43: error: not a statement
          list3[] = list[((s.length()+3)/2-1)+i];
               ^
Main.java:43: error: ';' expected
          list3[] = list[((s.length()+3)/2-1)+i];
                 ^
Main.java:43: error: not a statement
          list3[] = list[((s.length()+3)/2-1)+i];
                        ^
3 errors
Language: C++

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

int main(){
  string S;
  cin >> S;
  T=S;
  reverse(T.begin(),T.end()):
  A=S.substr(0,(N-1)/2);
  B=A;
  reverse(B.begin(),B.end());
  C=S.substr((N+3)/2,(N-1)/2);
  D=C;
  reverse(D.begin(),D.end());
  if(S==T && A==B && C==D){
    cout << "Yes" << endl;
  }
  else{
    cout << "No" << endl;
  }
} 

Compiler output:
a.cc: In function 'int main()':
a.cc:7:3: error: 'T' was not declared in this scope
    7 |   T=S;
      |   ^
a.cc:10:3: error: 'B' was not declared in this scope
   10 |   B=A;
      |   ^
a.cc:10:5: error: 'A' was not declared in this scope
   10 |   B=A;
      |     ^
a.cc:12:3: error: 'C' was not declared in this scope
   12 |   C=S.substr((N+3)/2,(N-1)/2);
      |   ^
a.cc:12:15: error: 'N' was not declared in this scope
   12 |   C=S.substr((N+3)/2,(N-1)/2);
      |               ^
a.cc:13:3: error: 'D' was not declared in this scope
   13 |   D=C;
      |   ^
Language: C++

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

bool p(string s){
  string t = reverse(s.begin(), s.end());
  return s == t;
}

int main(){
  string s;
  cin >> s;
  if(p(s) && p(s.substr(1,(s.size() - 1) / 2)) && p(s.substr((s.size()+1)/2))){
    cout << "Yes" << endl;
  }else{
    cout << "No" << endl;
  }
}

Compiler output:
a.cc: In function 'bool p(std::string)':
a.cc:5:21: error: conversion from 'void' to non-scalar type 'std::string' {aka 'std::__cxx11::basic_string<char>'} requested
    5 |   string t = reverse(s.begin(), s.end());
      |              ~~~~~~~^~~~~~~~~~~~~~~~~~~~
Language: C++

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

bool p(string s){
  string t = reverse(s.begin(), s.end());
  return s == t;
}

int main(){
  stirng s;
  cin >> s;
  if(p(s) && p(s.substr(1,(s.size() - 1) / 2)) && p(s.substr((n+1)/2))){
    cout << "Yes" << endl;
  }else{
    cout << "No" << endl;
  }
}

Compiler output:
a.cc: In function 'bool p(std::string)':
a.cc:5:21: error: conversion from 'void' to non-scalar type 'std::string' {aka 'std::__cxx11::basic_string<char>'} requested
    5 |   string t = reverse(s.begin(), s.end());
      |              ~~~~~~~^~~~~~~~~~~~~~~~~~~~
a.cc: In function 'int main()':
a.cc:10:3: error: 'stirng' was not declared in this scope
   10 |   stirng s;
      |   ^~~~~~
a.cc:11:10: error: 's' was not declared in this scope
   11 |   cin >> s;
      |          ^
a.cc:12:63: error: 'n' was not declared in this scope; did you mean 'yn'?
   12 |   if(p(s) && p(s.substr(1,(s.size() - 1) / 2)) && p(s.substr((n+1)/2))){
      |                                                               ^
      |                                                               yn
Language: C++

#include <bits/stdc++.h>
using namespace std;
#define rep(i, n) for (int i = 0; i < (int)(n); i++)
#define rep2(i, s, n) for (int i = (s); i < (int)(n); i++)
using Graph = vector<vector<int>>;
using ll = long long;


int main() {
    string s;
    cin>>s;
    int n=s.size();
    bool d1=false;
    bool d2=false;
    if(((n-1)/2)%2==0){
        rep(i,(n-1)/4){
            if(s[i]==s[(n-1)/2-i]){
                d1=true;
            }
        }
    }
    else{
        rep(i,((n-1)/2-1)/2){
            if(s[i]==s[(n-1)/2-i]){
                d1=true;
            }
        }
    }
    if(d1==false){
        cout<<"No"<<endl;
        return 0;
    }
    if(((n+3)/2)%2==0){
        rep(i,(k-(n+3)/2)/2){
            if(s[(n+3)/2+i]==s[n-i]){
                d2=true;
            }
        }
    }
    else{
        rep(i,(k-(n+3)/2)/2){
            if(s[(n+3)/2+i]==s[n-i]){
                d2=true;
            }
        }
    }
    if(d2=true){
        cout<<"Yes"<<endl;
        return 0;
    }
    cout<<"No"<<endl;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:34:16: error: 'k' was not declared in this scope
   34 |         rep(i,(k-(n+3)/2)/2){
      |                ^
a.cc:3:45: note: in definition of macro 'rep'
    3 | #define rep(i, n) for (int i = 0; i < (int)(n); i++)
      |                                             ^
a.cc:41:16: error: 'k' was not declared in this scope
   41 |         rep(i,(k-(n+3)/2)/2){
      |                ^
a.cc:3:45: note: in definition of macro 'rep'
    3 | #define rep(i, n) for (int i = 0; i < (int)(n); i++)
      |                                             ^
Language: C++

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

int main() {
 string S;
 cin >> S;
 int n = S.size() / 2;
 for(int i=0; i<n; i++) {
   if(S[i] != S[n+1+i]) { 
    cout << "No" << endl; 
    return 0;
 }
 int nn = n / 2;
 for(int i=0; i<nn; i++) {
   if(S[i] != S[n-1-i]) {
     cout << "No" << endl;
     return 0;
   }
 }
 cout << "Yes" << endl;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:23:2: error: expected '}' at end of input
   23 | }
      |  ^
a.cc:6:12: note: to match this '{'
    6 | int main() {
      |            ^
Language: C++

#include <algorithm>
#include <bitset>
#include <tuple>
#include <cstdint>
#include <cstdio>
#include <cctype>
#include <assert.h>
#include <stdlib.h>
#include <stdio.h>
#include <cassert>
#include <cfloat>
#include <climits>
#include <cmath>
#include <complex>
#include <ctime>
#include <deque>
#include <fstream>
#include <functional>
#include <iomanip>
#include <iostream>
#include <iterator>
#include <list>
#include <limits>
#include <map>
#include <memory>
#include <queue>
#include <random>
#include <set>
#include <stack>
#include <string>
#include <unordered_map>
#include <unordered_set>
#include <utility>
#include <vector>
#define ArraySizeOf(array)     (sizeof(array) / sizeof(array[0]))
#define rep(i, n) for (int i = 0; i < (int)(n); i++)
#define REP(i,n) for(int i=1;i<n;i++)
#define rev(i,n) for(int i=n-1;i>=0;i--)
#define _GLIBCXX_DEBUG
#define int long long
int INF = 1e9+7;
unsigned NthDayOfWeekToDay(unsigned n, unsigned dow, unsigned dow1)
{
unsigned day;
if(dow < dow1) dow += 7;
day = dow - dow1;
day += 7 * n - 6;
return day;
}
unsigned DayToWeekNumber(unsigned day)
{
  return (day - 1) / 7 + 1;
}
unsigned AnotherDayOfWeek(unsigned day, unsigned day0, unsigned dow0)
{
  return (dow0 + 35 + day - day0) % 7;
}
using namespace std;
signed main(){
  string S;
  cin>>S;
  rep(i,(S.size()+1)/2){
    if(S.at(i)!=S.at(S.size()-i-1)){
      cout<<"No"<<endl;
      return 0;
    }
  }
  rep(i,(S.size()-1)/2-1){
    if(s.at(i)!=S.at((S.size()-1)/2-1-i)){
      cout<<"No"<<endl;
      return 0;
    }
  }
  for(int i=(S.size()+3)/2-1;i<S.size();i++){
    if(S.at((S.size()+3)/2-1+i)!=S.at(S.size()-1-i)){
      cout<<"No"<<endl;
      return 0;
    }
  }
  cout<<"Yes"<<endl;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:69:8: error: 's' was not declared in this scope
   69 |     if(s.at(i)!=S.at((S.size()-1)/2-1-i)){
      |        ^
Language: C++

#include <algorithm>
#include <bitset>
#include <tuple>
#include <cstdint>
#include <cstdio>
#include <cctype>
#include <assert.h>
#include <stdlib.h>
#include <stdio.h>
#include <cassert>
#include <cfloat>
#include <climits>
#include <cmath>
#include <complex>
#include <ctime>
#include <deque>
#include <fstream>
#include <functional>
#include <iomanip>
#include <iostream>
#include <iterator>
#include <list>
#include <limits>
#include <map>
#include <memory>
#include <queue>
#include <random>
#include <set>
#include <stack>
#include <string>
#include <unordered_map>
#include <unordered_set>
#include <utility>
#include <vector>
#define ArraySizeOf(array)     (sizeof(array) / sizeof(array[0]))
#define rep(i, n) for (int i = 0; i < (int)(n); i++)
#define REP(i,n) for(int i=1;i<n;i++)
#define rev(i,n) for(int i=n-1;i>=0;i--)
#define _GLIBCXX_DEBUG
#define int long long
int INF = 1e9+7;
unsigned NthDayOfWeekToDay(unsigned n, unsigned dow, unsigned dow1)
{
unsigned day;
if(dow < dow1) dow += 7;
day = dow - dow1;
day += 7 * n - 6;
return day;
}
unsigned DayToWeekNumber(unsigned day)
{
  return (day - 1) / 7 + 1;
}
unsigned AnotherDayOfWeek(unsigned day, unsigned day0, unsigned dow0)
{
  return (dow0 + 35 + day - day0) % 7;
}
using namespace std;
signed main(){
  string S;
  cin>>S;
  rep(i,(S.size()+1)/2){
    if(S.at(i)!=S.at(S.size()-i-1)){
      cout<<"No"<<endl;
      return 0;
    }
  }
  rep(i,(N-1)/2-1){
    if(s.at(i)!=S.at((N-1)/2-1-i)){
      cout<<"No"<<endl;
      return 0;
    }
  }
  for(int i=(N+3)/2-1;i<N;i++){
    if(S.at((N+3)/2-1+i)!=S.at(N-1-i)){
      cout<<"No"<<endl;
      return 0;
    }
  }
  cout<<"Yes"<<endl;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:68:10: error: 'N' was not declared in this scope
   68 |   rep(i,(N-1)/2-1){
      |          ^
a.cc:36:45: note: in definition of macro 'rep'
   36 | #define rep(i, n) for (int i = 0; i < (int)(n); i++)
      |                                             ^
a.cc:69:8: error: 's' was not declared in this scope
   69 |     if(s.at(i)!=S.at((N-1)/2-1-i)){
      |        ^
a.cc:74:14: error: 'N' was not declared in this scope
   74 |   for(int i=(N+3)/2-1;i<N;i++){
      |              ^
Language: C++

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

using namespace std;
using p=pair<int,int>;
typedef long long ll;

int main() {
  string s;
  int k=s.size;
    bool ans =true;
    rep(i,k/4-1){
      if(s[i]!=s[k/2-1-i]||s[i]!=s[k/2+1]||s[i]!=s[k-1-i]){
        ans=false;
        cout << "No" << endl;
      }
    }
    if(ans){
      cout << "Yes" << endl;
    }


  return 0;

}

Compiler output:
a.cc: In function 'int main()':
a.cc:10:11: error: cannot convert 'std::__cxx11::basic_string<char>::size' from type 'std::__cxx11::basic_string<char>::size_type (std::__cxx11::basic_string<char>::)() const noexcept' {aka 'long unsigned int (std::__cxx11::basic_string<char>::)() const noexcept'} to type 'int'
   10 |   int k=s.size;
      |           ^~~~
Language: C++

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

bool pal(string s)
{
    int n = s.size();
    for(int i = 0; i < n/2; i++)
        if(s[i]!=s[-i-1])
            return false;
    return true;
}

int main()
{
    string s;
    cin >> s;
    int n = s.size();12312
    if(pal(s) and pal(s.substr(0, n/2)) and pal(s.substr((n+3)/2, n/2-1)))
        cout << "Yes";
    else cout << "No";
}



Compiler output:
a.cc: In function 'int main()':
a.cc:18:27: error: expected ';' before 'if'
   18 |     int n = s.size();12312
      |                           ^
      |                           ;
   19 |     if(pal(s) and pal(s.substr(0, n/2)) and pal(s.substr((n+3)/2, n/2-1)))
      |     ~~                     
a.cc:21:5: error: 'else' without a previous 'if'
   21 |     else cout << "No";
      |     ^~~~
Language: C++

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

bool pal(string s)
{
    int n = s.size();
    for(int i = 0; i < n/2; i++)
        if(s[i]!=s[-i-1])
            return false;
    return true;
}

int main()
{
    string s;
    cin >> s;
    if(pal(s) and pal(s.substr(0, n/2)) and pal(s.substr((n+3)/2, n/2)))
        cout << "Yes";
    else cout << "No";
}



Compiler output:
a.cc: In function 'int main()':
a.cc:18:35: error: 'n' was not declared in this scope
   18 |     if(pal(s) and pal(s.substr(0, n/2)) and pal(s.substr((n+3)/2, n/2)))
      |                                   ^
Language: C++

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

bool pal(string s)
{
    for(int i = 0; i < s.size()/2; i++)
        if(s[i]!=s[n-i-1])
            return false;
    return true;
}

int main()
{
    string s;
    cin >> s;
    if(pal(s) and pal(s.substr(0, n/2)) and pal(s.substr((n+3)/2, n/2)
        cout << "Yes";
    else cout << "No";

}



Compiler output:
a.cc: In function 'bool pal(std::string)':
a.cc:8:20: error: 'n' was not declared in this scope
    8 |         if(s[i]!=s[n-i-1])
      |                    ^
a.cc: In function 'int main()':
a.cc:17:35: error: 'n' was not declared in this scope
   17 |     if(pal(s) and pal(s.substr(0, n/2)) and pal(s.substr((n+3)/2, n/2)
      |                                   ^
a.cc:18:22: error: expected ')' before ';' token
   18 |         cout << "Yes";
      |                      ^
      |                      )
a.cc:17:7: note: to match this '('
   17 |     if(pal(s) and pal(s.substr(0, n/2)) and pal(s.substr((n+3)/2, n/2)
      |       ^
Language: C++

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

bool isp(string s){
 string ss = s;
  reverse(ss.begin(), ss.end());
  return (s == ss);
}
int main(){
    fast;
       string s, a = "", b = "";
      cin >> s;
      int n = s.size(), i;
      for(i = 0; i < (n - 1)/2; i++){
        a+=s[i];
      }
      for(i = (n + 1)/2; i < n; i++){
        b+=s[i];
      }

      if(isp(a) && isp(b) && isp(s)){
        cout << "Yes" << endl;
      } else {
        cout << "No" << endl;
      }
    
}

Compiler output:
a.cc: In function 'int main()':
a.cc:10:5: error: 'fast' was not declared in this scope
   10 |     fast;
      |     ^~~~
Language: Java

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

bool isPalindrome(string s){
    string t = s;
    reverse(t.begin(),t.end());
    return s == t;
}

int main(){
    string s;
    cin >> s;
    bool ans = true;
    if(!isPalindrome(s)) ans = false;
    if(!isPalindrome(s.substr(0, s.size()/2))) ans = false;
    cout << (ans ? "Yes" : "No") << endl;
    return 0;
}

Compiler output:
Main.java:1: error: illegal character: '#'
#include <bits/stdc++.h>
^
Main.java:1: error: class, interface, enum, or record expected
#include <bits/stdc++.h>
         ^
Main.java:2: error: illegal character: '#'
#define rep(i,n) for(int i = 0; i < (n); i++)
^
Main.java:2: error: class, interface, enum, or record expected
#define rep(i,n) for(int i = 0; i < (n); i++)
                                ^
Main.java:2: error: class, interface, enum, or record expected
#define rep(i,n) for(int i = 0; i < (n); i++)
                                         ^
Main.java:4: error: class, interface, enum, or record expected
using namespace std;
^
Main.java:5: error: unnamed classes are a preview feature and are disabled by default.
using P = pair<int,int>;
^
  (use --enable-preview to enable unnamed classes)
Main.java:5: error: '.class' expected
using P = pair<int,int>;
                  ^
Main.java:5: error: <identifier> expected
using P = pair<int,int>;
                   ^
Main.java:15: error: not a statement
    cin >> s;
        ^
Main.java:19: error: not a statement
    cout << (ans ? "Yes" : "No") << endl;
                                 ^
11 errors
Language: C++

# include <iostream>
# include <string >
using namespace std;
int main()
{
	int p,n;
	p=0;
	string s; 
	cin>>s;
	n=s.size();
	for(int i=0; i<s.size(); i++)
	{
		if(s[i]!=s[n-1-i])
		{
			p=1;
		}
		if(i<(s.size()-1)/2)
		{
		if(s[i]!=s[(s.size()-1)/2-1-i])
		{
			p=1;
		}
	}
	if(i>=(s.size()+3)/2-1)
	{
	if(s[i]!=s[n-1-i])
	{
	p=1;	
	}
}
	}
	if(p==1)
	{
		cout<<"No";
	}
	else
	{
		cout<<"Yes";
	}
}

Compiler output:
a.cc:2:11: fatal error: string : No such file or directory
    2 | # include <string >
      |           ^~~~~~~~~
compilation terminated.
Language: C++

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

int main() {
  string s;cin>>s;
  if(s.size()/2==0){cout<<"No"<<endl;exit (0);}
  for(int i=0;i<s.size();i++){
    if(s.at(i)!=s.at(s.size()-i){cout<<"No"<<endl;exit (0);}
  }
  if(a.at(0)!=a.at(2)){cout<<"No"<<endl;exit (0);}
  cout<<"Yes"<<endl;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:8:33: error: expected ')' before '{' token
    8 |     if(s.at(i)!=s.at(s.size()-i){cout<<"No"<<endl;exit (0);}
      |       ~                         ^
      |                                 )
a.cc:9:3: error: expected primary-expression before '}' token
    9 |   }
      |   ^
a.cc:10:6: error: 'a' was not declared in this scope
   10 |   if(a.at(0)!=a.at(2)){cout<<"No"<<endl;exit (0);}
      |      ^
Language: C++

#include<bits/stdc++.h>
using namespace std;
using ll = long long;
using P = pair<int,int>;

int main(){
  string s;
  cin >> s;
  
  string sub_s = s;
  reverse(sub_a.begin(), sub_s.end());
  int l = s.size();
  string a = s.substr(0, (l-1)/2);
  string sub_a = a;
  reverse(sub_a.begin(), sub_a.end());
  string b = s.substr((l+1)/2, l);
  string sub_b = b;
  reverse(sub_b.begin(), sub_b.end());
  
  bool ok = true;
  if(s != sub_s) ok = false;
  if(a != sub_a) ok = false;
  if(b != sub_b) ok = false;
  
  if(ok) cout << "Yes" << endl;
  else cout << "No" << endl;
  return 0;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:11:11: error: 'sub_a' was not declared in this scope; did you mean 'sub_s'?
   11 |   reverse(sub_a.begin(), sub_s.end());
      |           ^~~~~
      |           sub_s
Language: C++

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

int main(){
  string s;
  cin>>s;
  int kk=s.length();
  int ww=1;
  int t=(kk-1)/2;
  for(int i=0;i<t;i++){
    if(s[i]!=s[i+(kk-1)/2]){printf("No\n");return 0;}
  }
  for(int i=0;i<t/2+1){
    if(s[i]!=s[t-1-i]){printf("No\n");return 0;}
  }
  printf("Yes\n");
}


Compiler output:
a.cc: In function 'int main()':
a.cc:13:22: error: expected ';' before ')' token
   13 |   for(int i=0;i<t/2+1){
      |                      ^
      |                      ;
Language: C++

#include<bits/stdc++.h>

using namespace std;

bool check(vector<char>s)
{
    int i=0,j=s.size()-1;
    while(i<=j)
    {
        if(s[i]!=s[j])
            return false;

        i++;
        j--;
    }

    return true;
}
//akasakalevel
void test()
{
   string s;
   cin>>s;

   vector<char>a,b,c;

   for(auto ch:s)
    a.push_back(ch);

   for(int i=0;i<(a.size()-1)/2;i++)
    b.push_back(a[i]);

   for(int i=(a.size()+2)/2;i<a.size();i++)
   c.push_back(a[i]);akasaka

   if(check(a) && check(b) && check(c))
    cout<<"Yes";
   else
    cout<<"No";

}

int main()
{
    ios::sync_with_stdio(NULL);
    cin.tie(0);
    cout.tie(0);

    test();

    return 0;
}


Compiler output:
a.cc: In function 'void test()':
a.cc:34:22: error: 'akasaka' was not declared in this scope
   34 |    c.push_back(a[i]);akasaka
      |                      ^~~~~~~
a.cc:38:4: error: 'else' without a previous 'if'
   38 |    else
      |    ^~~~
Language: C++

int main()
{
    int n;
    string s, tmp1, tmp2;
    cin >> s;

    tmp1=s;
    tmp2=s;
    reverse(tmp1.begin(), tmp1.end());
    if (s.compare(tmp1) != 0)
    {
        cout << "No" << endl;
        return 0;
    }

    // cout << s.substr(0, (s.length() - 1) / 2) << endl;
    tmp1 = s.substr(0, (s.length() - 1) / 2);
    tmp2 = s.substr(0, (s.length() - 1) / 2);
    reverse(tmp2.begin(), tmp2.end());
    // cout << tmp1 << " " << tmp2 << endl;
    if (tmp1.compare(tmp2) != 0)
    {
        cout << "No" << endl;
        return 0;
    }
    tmp1 = s.substr((s.length() + 1) / 2, (s.length() - 1) / 2);
    tmp2 = s.substr((s.length() + 1) / 2, (s.length() - 1) / 2);
    reverse(tmp2.begin(), tmp2.end());
    // cout << tmp1 << " " << tmp2 << endl;
    if (tmp1.compare(tmp2) != 0)
    {
        cout << "No" << endl;
        return 0;
    }

    cout << "Yes" << endl;
    return 0;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:4:5: error: 'string' was not declared in this scope
    4 |     string s, tmp1, tmp2;
      |     ^~~~~~
a.cc:5:5: error: 'cin' was not declared in this scope
    5 |     cin >> s;
      |     ^~~
a.cc:5:12: error: 's' was not declared in this scope
    5 |     cin >> s;
      |            ^
a.cc:7:5: error: 'tmp1' was not declared in this scope
    7 |     tmp1=s;
      |     ^~~~
a.cc:8:5: error: 'tmp2' was not declared in this scope
    8 |     tmp2=s;
      |     ^~~~
a.cc:9:5: error: 'reverse' was not declared in this scope
    9 |     reverse(tmp1.begin(), tmp1.end());
      |     ^~~~~~~
a.cc:12:9: error: 'cout' was not declared in this scope
   12 |         cout << "No" << endl;
      |         ^~~~
a.cc:12:25: error: 'endl' was not declared in this scope
   12 |         cout << "No" << endl;
      |                         ^~~~
a.cc:23:9: error: 'cout' was not declared in this scope
   23 |         cout << "No" << endl;
      |         ^~~~
a.cc:23:25: error: 'endl' was not declared in this scope
   23 |         cout << "No" << endl;
      |                         ^~~~
a.cc:32:9: error: 'cout' was not declared in this scope
   32 |         cout << "No" << endl;
      |         ^~~~
a.cc:32:25: error: 'endl' was not declared in this scope
   32 |         cout << "No" << endl;
      |                         ^~~~
a.cc:36:5: error: 'cout' was not declared in this scope
   36 |     cout << "Yes" << endl;
      |     ^~~~
a.cc:36:22: error: 'endl' was not declared in this scope
   36 |     cout << "Yes" << endl;
      |                      ^~~~
Language: Java

package test;

import java.util.Scanner;

public class t {

	public static void main(String[] args) {
		// TODO Auto-generated method stub
		Scanner sc = new Scanner(System.in); 
		String s = sc.nextLine(); 
		if (s.length()%2==0) {
			System.out.println("Yes");
			return; 
		}
		int N = s.length(); 
		String s1 = s.substring(0, (N-1)/2);
		String s2 = s.substring((N+3)/2-1, N); 
		String res = s2 + s.charAt((N+1)/2-1) + s1; 
		if (res.equals(s)) System.out.println("Yes");
		else System.out.println("No");
		sc.close();
	}

}


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

//#define _USE_MATH_DEFINES
#include <iostream>
#include <cstdio>
#include <cstdlib>
#include <cstring>
#include <algorithm>
#include <cmath>
#include <vector>
using namespace std;
int i = 0;

bool is_kaibun(char s[], int l, int r) {
	while(s[l] == s[r]) {
		l++;
		r--;
		i++;
	}
	if (l > r) return true;
	else return false;
}

int main(){
    char s[100];
	cin >> s;
	int n = strlen(s);
	bool flag = true;
	if (!is_kaibun(s, 1 - 1, n - 1)) {flag = false;}
	if (!is_kaibun(s, 1 - 1, (n - 1) / 2 - 1)) {flag = false;}
	if (!is_kaibun(s, (n + 3) / 2 - 1, n - 1)) {flag = false;}
	if (flag) cout << "Yes" << endl;
	else cout << "No" << endl;
	return 0;
}

Compiler output:
Main.java:2: error: illegal character: '#'
#include <iostream>
^
Main.java:3: error: illegal character: '#'
#include <cstdio>
^
Main.java:4: error: illegal character: '#'
#include <cstdlib>
^
Main.java:5: error: illegal character: '#'
#include <cstring>
^
Main.java:6: error: illegal character: '#'
#include <algorithm>
^
Main.java:7: error: illegal character: '#'
#include <cmath>
^
Main.java:8: error: illegal character: '#'
#include <vector>
^
Main.java:10: error: unnamed classes are a preview feature and are disabled by default.
int i = 0;
^
  (use --enable-preview to enable unnamed classes)
Main.java:24: error: not a statement
	cin >> s;
	    ^
Main.java:30: error: not a statement
	if (flag) cout << "Yes" << endl;
	                        ^
Main.java:31: error: not a statement
	else cout << "No" << endl;
	                  ^
Main.java:23: error: ']' expected
    char s[100];
           ^
12 errors
Language: C++

#include "Area_on_the_Cross_Section_Diagram.hpp"

#include <iostream>
#include <string>
#include <stack>
#include <vector>
#include <fstream>
#include <cstdio>
#include "gtest/gtest.h"
using namespace std;

//新たにできた水たまりが、puddlesにスタックされている水たまりと結合できるかどうか判定し、
//結合できる場合は結合後の水たまりをpuddlesにスタックする
void ConnectPuddle(int left_edge_index, int area, stack<pair<int, int> >& puddles) {
	while (1) {
		//水たまりが結合できるかチェック
		//puddlesのスタックが空でなく、新たな水たまりのインデックスが
		//puddlesのトップにある水たまりのインデックスのより小さいとき、結合できる
		if (!puddles.empty() && left_edge_index < puddles.top().first) {
			area += puddles.top().second;
			puddles.pop();
		} else {
			break;
		}
	}
	puddles.push(make_pair(left_edge_index, area));
}

//水たまりの総面積、水たまりの総数およびそれぞれの面積を出力する
void PrintPuddleInfo(int area_sum, stack<pair<int, int>> puddles) {
	cout << area_sum << endl;

	int num_of_puddle = (int)(puddles.size());
	cout << num_of_puddle;
	if (num_of_puddle) cout << " ";

	//スタックに保存したのと逆順に出力
	vector<int> eachArea = {};
	for (int i = 0; i < num_of_puddle; i++) {
		eachArea.push_back(puddles.top().second);
		puddles.pop();
	}

	for (int i = num_of_puddle - 1; i >= 0; i--) {
		cout << eachArea[i];
		if (i) {
			cout << " ";
		}
	}
	cout << endl;
}

void my_main(ifstream& cin){
	string cross_section = "";      //断面図の斜面と平地を'/', '\', '_'の3つの文字で表現した文字列
	stack<int> puddle_left_index_stack;    //下り坂('\')のインデックスを保存
	stack<pair<int, int>> puddle_stack;  //水たまりの左端のインデックスと面積を保存
	int area_sum = 0;

	cin >> cross_section;
	for(int i = 0; i < (int)cross_section.length(); i++) {
		if(cross_section[i] == '\\') {
			puddle_left_index_stack.push(i);
			continue;
		}

		if(cross_section[i] == '_') {
			continue;
		}

		if(cross_section[i] == '/') {
			if(puddle_left_index_stack.empty()) {
				continue;
			}

			int left_edge_index = puddle_left_index_stack.top();  //水たまりの左端のインデックス
			puddle_left_index_stack.pop();
			int area = i - left_edge_index; //水平方向の面積を計算
			area_sum += area;               //面積の合計を保存

			ConnectPuddle(left_edge_index, area, puddle_stack); //水たまりを結合する
		}
	}
	PrintPuddleInfo(area_sum, puddle_stack);
}
//int CalculateHashTableIndex (const int board[kBoardSize][kBoardSize]) {
//	int hash_table_index = 0;
//	int gap_index = 0;
//	const int gap[] = {40320, 5040, 720, 120, 24, 6, 2, 1};
//	bool used_num[10] = {false};
//	for (int i = 0; i < kBoardSize; ++i) {
//		for (int j = 0; j < kBoardSize; ++j) {
//			int count = 0;
//			used_num[board[i][j]] = true;
//			for (int k = 1; k < board[i][j]; ++k) {
//				if (used_num[k]) {
//					continue;
//				}
//				count++;
//			}
//			hash_table_index += gap[gap_index++] * count;
//		}
//	}
//	return hash_table_index;
//}


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

#include<iostream>
#include<fstream>
#include<string>

#include "gtest/gtest.h"

using namespace std;

int main(int argc, char **argv) {
	printf("Running main() from %s\n", __FILE__);
	testing::InitGoogleTest(&argc, argv);
	return RUN_ALL_TESTS();
}

#define main MAIN
#include "../src/alds1_13_c.cpp" // テスト対象のメイン

void MyTest(const string input_file_path, const string output_file_path) {
	ifstream input_ifstream(input_file_path);
	ASSERT_TRUE(input_ifstream); //入力ファイルオープンの失敗対策
	//cin処理
	std::cin.rdbuf(input_ifstream.rdbuf());

	ifstream output_ifstream(output_file_path);
	ASSERT_TRUE(output_ifstream); //解答ファイルオープンの失敗対策
	string result = string(istreambuf_iterator<char>(output_ifstream), istreambuf_iterator<char>());

	testing::internal::CaptureStdout(); //標準出力キャプチャ開始
	MAIN();
	ASSERT_STREQ(result.c_str(), testing::internal::GetCapturedStdout().c_str()); //キャプチャ終了
}

TEST(SIMPLE_TEST, simple_test1) {
	MyTest("input_txt/input0.txt", "output_txt/output0.txt");
}
TEST(SIMPLE_TEST, simple_test2) {
	MyTest("input_txt/input1.txt", "output_txt/output1.txt");
}
TEST(MANY_MOVEMENT_TEST, many_movement_test1) {
	MyTest("input_txt/input2.txt", "output_txt/output2.txt");
}
//TEST(SIMPLE_TEST, simple_test2) {
//	MyTest("input_txt/input3.txt", "output_txt/output3.txt");
//}
//TEST(SIMPLE_TEST, simple_test3) {
//	MyTest("input_txt/input4.txt", "output_txt/output4.txt");
//}
//TEST(SIMPLE_TEST, simple_test4) {
//	MyTest("input_txt/input5.txt", "output_txt/output5.txt");
//}
//TEST(QUANTUM_MAX_TEST, qmax_test1) {
//	MyTest("input_txt/input6.txt", "output_txt/output6.txt");
//}
//TEST(SIMPLE_TEST, simple_test5) {
//	MyTest("input_txt/input7.txt", "output_txt/output7.txt");
//}
//TEST(SIMPLE_TEST, simple_test6) {
//	MyTest("input_txt/input8.txt", "output_txt/output8.txt");
//}
//TEST(MANY_QNUM_TEST, many_qnum_test1) {
//	MyTest("input_txt/input0.txt", "output_txt/output0.txt");
//}


Compiler output:
a.cc:5:10: fatal error: gtest/gtest.h: No such file or directory
    5 | #include "gtest/gtest.h"
      |          ^~~~~~~~~~~~~~~
compilation terminated.
Language: Java

import java.util.*;
	public class Main{
      public static void main(String[]args){
        Scanner s = new Scanner(System.in);
 		string s = sc.next;
        int n = s.length();
        
        String left = s.substring(0,(n-1)/2);
        String right =s.substring((n+3)/2-1,n);
        
        if(left.equals(right)){
          System.out.println("Yes");
        }else{System.out.println("No");
             }
      }
    }

Compiler output:
Main.java:5: error: cannot find symbol
 		string s = sc.next;
 		^
  symbol:   class string
  location: class Main
Main.java:5: error: variable s is already defined in method main(String[])
 		string s = sc.next;
 		       ^
Main.java:5: error: cannot find symbol
 		string s = sc.next;
 		           ^
  symbol:   variable sc
  location: class Main
3 errors
Language: C++

#include <bits/stdc++.h>
using namespace std;
const int N=1e5+10;
int  a[N],flag[N];
int main()
{
	cin.tie(0);cout.tie(0);ios::sync_with_stdio(0);
	string s;
	cin>>s;
	int l=s.size();
/*	if((l-1)/2%2==0)
	{

	}
	else*/
	if(l==3&&s[0]==s[2])
	{
			cout<<"Yes";return 0;
	}
	for(int i=0;i<(l-1)/2;i++)
	{
		if(s[i]!=s[(l-1)/2-i-1]){cout<<"No";return 0;}
	}
		for(int i=(l+3)/2-1;i<l;i++)
	{
		if(s[i]!=s[l-(i-3)-1]){cout<<"No";return 0;}
	}

	for(int i=0;i<l;i++)
	{
		if(s[i]!=s[(l-1-i]){cout<<"No";return 0;}
	}
	cout<<"Yes";
		return 0;
}


Compiler output:
a.cc: In function 'int main()':
a.cc:31:34: error: expected ')' before ']' token
   31 |                 if(s[i]!=s[(l-1-i]){cout<<"No";return 0;}
      |                            ~     ^
      |                                  )
a.cc:31:58: error: expected ']' before '}' token
   31 |                 if(s[i]!=s[(l-1-i]){cout<<"No";return 0;}
      |                                                          ^
      |                                                          ]
   32 |         }
      |         ~                                                 
a.cc:31:58: error: expected ')' before '}' token
   31 |                 if(s[i]!=s[(l-1-i]){cout<<"No";return 0;}
      |                   ~                                      ^
      |                                                          )
   32 |         }
      |         ~                                                 
a.cc:32:9: error: expected primary-expression before '}' token
   32 |         }
      |         ^
Language: C++

#include <bits/stdc++.h>
#include <math.h>
using namespace std;
#define rep(i,n) for(int i = 0; i < (int) (n); i++)
#define ll long long
ll INF=9e17;

bool is_palindrome(string s){
    string t(s.rbegin(),s.rend());
    return s == t;
}
 
int main(){
    string s;
    cin>>s;
    int n=s.size();
    if(is_palindrome(s) && is_palindrome(s.substr(0,(n-1)/2)) && is_palindrome(s.substr((n+1)/2))){
        cout<<"Yes"<<endl;
   }

Compiler output:
a.cc: In function 'int main()':
a.cc:19:5: error: expected '}' at end of input
   19 |    }
      |     ^
a.cc:13:11: note: to match this '{'
   13 | int main(){
      |           ^
Language: C++

#include <bits/stdc++.h>
#include <math.h>
using namespace std;
#define rep(i,n) for(int i = 0; i < (int) (n); i++)
#define ll long long
ll INF=9e17;

int main() {
	string s; cin >> s;
	bool ok = true;
	rep(i,n/2) {
	if(s[i]==s[n-1]) ok = true;
	else ok = false;	
	}
	string ss=s.substr(0,(n-1)/2);
	string sss = s.substr((n+3)/2);
	if(ok) {
		rep(i,(n-1)/4) {
		if(ss[i]==ss[ss.size()-i]) ok = true;
		else ok = false;
		}
		if(ok) {
			rep(i,(n-1)/4) {
		if(ss[i]==ss[ss.size()-i]) ok = true;
		else ok = false;
		}
		}
	}
	if(ok) cout << "Yes" << endl;
	else cout << "No" << endl;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:11:15: error: 'n' was not declared in this scope
   11 |         rep(i,n/2) {
      |               ^
a.cc:4:44: note: in definition of macro 'rep'
    4 | #define rep(i,n) for(int i = 0; i < (int) (n); i++)
      |                                            ^
a.cc:15:31: error: 'n' was not declared in this scope
   15 |         string ss=s.substr(0,(n-1)/2);
      |                               ^
Language: Java

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

public class Main {
  public static void main(String[] args) throws IOException {
    BufferedReader in = new BufferedReader(new InputStreamReader(System.in));
    String s = in.readLine();
    int s_len = s.length();
    if(s.substring(0,(s_len-1)/2).equalse(s.substring((s_len+1)/2,s_len))) {
      System.out.println("Yes");
    } else {
      System.out.println("No");
    }
  }
}

Compiler output:
Main.java:10: error: cannot find symbol
    if(s.substring(0,(s_len-1)/2).equalse(s.substring((s_len+1)/2,s_len))) {
                                 ^
  symbol:   method equalse(String)
  location: class String
1 error
Language: Java

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

public class Main {
  public static void main(String[] args) throws IOException {
    BufferedReader in = new BufferedReader(new InputStreamReader(System.in));
    String s = in.readLine();
    int s_len = s.length();
    if(s.substring(0,(n-1)/2).equalse(s.substring((n+1)/2,n))) {
      System.out.println("Yes");
    } else {
      System.out.println("No");
    }
  }
}

Compiler output:
Main.java:10: error: cannot find symbol
    if(s.substring(0,(n-1)/2).equalse(s.substring((n+1)/2,n))) {
                      ^
  symbol:   variable n
  location: class Main
Main.java:10: error: cannot find symbol
    if(s.substring(0,(n-1)/2).equalse(s.substring((n+1)/2,n))) {
                                                   ^
  symbol:   variable n
  location: class Main
Main.java:10: error: cannot find symbol
    if(s.substring(0,(n-1)/2).equalse(s.substring((n+1)/2,n))) {
                                                          ^
  symbol:   variable n
  location: class Main
3 errors
Language: C++

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

int main(){
  string s; cin >> s;
  int l = s.size();
  bool ans = true;
  for(int i=0; i<=(l-3)/2; i++){
    if(!(s[i]=s[((l-3)/2)-i]&&s[(l-1)-i]=s[((l+1)/2)+i])){
      ans = false;
      break;
    }
  }
  if(ans) cout << "Yes" << endl;
  else cout << "No" << endl;
}

       

Compiler output:
a.cc: In function 'int main()':
a.cc:9:29: error: lvalue required as left operand of assignment
    9 |     if(!(s[i]=s[((l-3)/2)-i]&&s[(l-1)-i]=s[((l+1)/2)+i])){
Language: C++

#include <bits/stdc++.h>
using namespace std;
#define rep(i,n) for(int i=0;i<(n);i++)
typedef long long ll;
 
int main() {
	string s;
  	cin>>s;
  	int a=s.size();
  	
  
  	string r=s;
    reverse(r.begin(),r.end());

  	

  	string m=s.substr(0,a/2);
  	string o=m;
  	reverse(o.begin(),o.end());

   
	if(s==r&&m==o){
    	cout<<"Yes"<<endl;
    }
  "うそでしょnoって書いてただけなんだけど!!!!"
  	else{
    	cout<<"No"<<endl;
    }
  
}

Compiler output:
a.cc: In function 'int main()':
a.cc:25:47: error: expected ';' before 'else'
   25 |   "うそでしょnoって書いてただけなんだけど!!!!"
      |                                               ^
      |                                               ;
   26 |         else{
      |         ~~~~
Language: C++

#include <bits/stdc++.h>
#define rep(i,n) for (int i = 0; i < (n) ; ++i)
using namespace std;
using ll = long long ;
using P = pair<int, int> ;
#define PI 3.14159265358979323846264338327950
int main () {
    string S;
    bool strong = true ;
    cin >> S;
    string T = S ;
    reverse(T.begin(), T.end());
    string subs1 = S.substr(0, (S.size()-1)/2) ;
    string subs2 = S.substr((S.size()+3)/2 -1 , S.size());
    string revsub1  = subs1;
    string revsub2  = subs2;
    reverse(revsub1.begin(), revsub1.end());
    reverse(revsub2.begin(), revsub2.end());
    if ( S != T) {
        strong = false;
    }
    if ( subs1 != revsub1) {
        strong = false;
    }
    if ( subs2 != revsub2) {
        strong = false;
    }
    if (strong){
        cout << "Yes" << endl;
    }
    else { 
        cout << "No" << endl;
    }

Compiler output:
a.cc: In function 'int main()':
a.cc:33:6: error: expected '}' at end of input
   33 |     }
      |      ^
a.cc:7:13: note: to match this '{'
    7 | int main () {
      |             ^
Language: C++

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

int main() {
  string s; cin >> s;
  string mae = s.substr(0,(s.size()-1)/2);
  string maer = reverse(mae.begin(),mae.end());
  string ato = s.substr((s.size()+3)/2,(s.size()-1)/2);
  string ator = reverse(ato.begin(),ato.end());
  if(mae != maer || mae != ato || mae != ator) cout << "No" << endl;
  else cout << "Yes" << endl;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:7:24: error: conversion from 'void' to non-scalar type 'std::string' {aka 'std::__cxx11::basic_string<char>'} requested
    7 |   string maer = reverse(mae.begin(),mae.end());
      |                 ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~
a.cc:9:24: error: conversion from 'void' to non-scalar type 'std::string' {aka 'std::__cxx11::basic_string<char>'} requested
    9 |   string ator = reverse(ato.begin(),ato.end());
      |                 ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~
Language: C++

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

int main() {
  string s;
  cin >> s;
  int n=s.size();
  
  bool judge=true;
  for(int i=0; i<(n-1)/2; i++){
    if(s.at(i)!=s.at(n-1-i)){
      judge=false;
      break;
    }
  }
  if(judge){
    for(int i=0; i<(n-1)/4; i++){
      if(s.at(i)!=s.at((n-1)/2-1-n){
        judge=false;
        break;
      }
    }
  }
  if(judge){
    int j=0;
    for(int i=(n+3)/2-1; i<n; i++){
      if(s.at(i)!=s.at(n-1-j)){
        judge=false;
        break;
      }
      j++;
    }
  }
  if(judge){
    cout << "Yes" << endl;
  }
  else{
    cout << "No" << endl;
  }
}


Compiler output:
a.cc: In function 'int main()':
a.cc:18:36: error: expected ')' before '{' token
   18 |       if(s.at(i)!=s.at((n-1)/2-1-n){
      |         ~                          ^
      |                                    )
a.cc:22:5: error: expected primary-expression before '}' token
   22 |     }
      |     ^
Language: C++

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


#define li          long long int
#define rep(i,to)   for(li i=0;i<((li)(to));i++)
#define repp(i,start,to)    for(li i=(li)(start);i<((li)(to));i++)
#define pb          push_back
#define sz(v)       ((li)(v).size())
#define bgn(v)      ((v).begin())
#define eend(v)     ((v).end())
#define allof(v)    (v).begin(), (v).end()
#define dodp(v,n)       memset(v,(li)n,sizeof(v))
#define bit(n)      (1ll<<(li)(n))
#define mp(a,b)     make_pair(a,b)
#define rin rep(i,n)
#define EPS 1e-12
#define ETOL 1e-8
#define MOD 998244353
typedef pair<li, li> PI;

#define INF bit(60)

#define DBGP 1


#define idp if(DBGP)
#define F first
#define S second
#define p2(a,b)     idp cout<<a<<"\t"<<b<<endl
#define p3(a,b,c)       idp cout<<a<<"\t"<<b<<"\t"<<c<<endl
#define p4(a,b,c,d)     idp cout<<a<<"\t"<<b<<"\t"<<c<<"\t"<<d<<endl
#define p5(a,b,c,d,e)       idp cout<<a<<"\t"<<b<<"\t"<<c<<"\t"<<d<<"\t"<<e<<endl
#define p6(a,b,c,d,e,f)     idp cout<<a<<"\t"<<b<<"\t"<<c<<"\t"<<d<<"\t"<<e<<"\t"<<f<<endl
#define p7(a,b,c,d,e,f,g)       idp cout<<a<<"\t"<<b<<"\t"<<c<<"\t"<<d<<"\t"<<e<<"\t"<<f<<"\t"<<g<<endl
#define p8(a,b,c,d,e,f,g,h)     idp cout<<a<<"\t"<<b<<"\t"<<c<<"\t"<<d<<"\t"<<e<<"\t"<<f<<"\t"<<g<<"\t"<<h<<endl
#define p9(a,b,c,d,e,f,g,h,i)       idp cout<<a<<"\t"<<b<<"\t"<<c<<"\t"<<d<<"\t"<<e<<"\t"<<f<<"\t"<<g<<"\t"<<h<<"\t"<<i<<endl
#define p10(a,b,c,d,e,f,g,h,i,j)        idp cout<<a<<"\t"<<b<<"\t"<<c<<"\t"<<d<<"\t"<<e<<"\t"<<f<<"\t"<<g<<"\t"<<h<<"\t"<<i<<"\t"<<j<<endl
#define foreach(it,v)   for(__typeof((v).begin()) it=(v).begin(); it!=(v).end(); ++it)
#define p2p(x)      idp p2((x).F, (x).S)
#define dump(x,n)   idp{rep(i,n){cout<<x[i]<<" ";}puts("");}
#define dump2(x,n)  idp{rep(i,n){cout<<"["<<x[i].F<<" , "<<x[i].S<<"] ";}puts("");}
#define dumpi(x)    idp{foreach(it, x){cout<<(*it)<<" ";}puts("");}
#define dumpi2(x)   idp{foreach(it, x){cout<<"["<<(it)->F<<" , "<<(it)->S<<"] ";}puts("");}

#define read2d(a,w,h)   rep(i,h)rep(j,w)cin>>a[i][j]
#define dump2d(a,w,h)   rep(i,h){rep(j,w)cout<<a[i][j]<<" ";puts("");}

typedef pair<li, li> PI;


inline bool check(string& s){
    string ss = s;
    reverse(allof(ss));
    return ss==s;
}

int main() {
string s;
    cin>>s;
    if(!check(s)){
        puts("No");
        return 0;
    }
    if(!check(s.substr(0, sz(s)/2))){
        puts("No");
        return 0;
    }
    puts("Yes");

    return 0;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:65:23: error: cannot bind non-const lvalue reference of type 'std::string&' {aka 'std::__cxx11::basic_string<char>&'} to an rvalue of type 'std::__cxx11::basic_string<char>'
   65 |     if(!check(s.substr(0, sz(s)/2))){
      |               ~~~~~~~~^~~~~~~~~~~~
a.cc:52:27: note:   initializing argument 1 of 'bool check(std::string&)'
   52 | inline bool check(string& s){
      |                   ~~~~~~~~^
Language: C

#include <stdio.h>
int main(){
  int i=-1,flag=0;
  char a[100]={};
  scanf("%s",a);
  do{
   i++;
  }while(a[i]);
  i--;
    for(int j=0;j<=(i+1)/2;j++){
     if (a[j]!=a[i-j]){
      printf("No");
       return 0;
     }
    }
   
  for(int j=0;j<=(i-1)/2;j++){
     if (a[j]!=a[(i-1)/2-j]){
      printf("No");
       return 0;
     }
    
    for(int j=0;j<=(i-3)/2;j++){
     if (a[(i+3)/2+j]!=a[i-j]){
      printf("No");
       return 0;
     }
    
    }
  
  
  printf("Yes");
  return 0;
}


Compiler output:
main.c: In function 'main':
main.c:34:1: error: expected declaration or statement at end of input
   34 | }
      | ^