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

#include<stdio.h>

int main()
{
 char s[6];

 scanf("%s",s);

 if((s[0]==s[5])&&(s[1]==s[4])&&(s[2]==s[3]))
         printf("YES\n");
 else printf("NO\n");

 return 0;
}
~


Compiler output:
main.c:15:1: error: expected identifier or '(' before '~' token
   15 | ~
      | ^
Language: C++

int main() {
  string s, t; cin >> s >> t;
  if(s[2] == t[0] && s[1] == t[1] && s[0] == t[2]) cout << "YES\n";
  else cout << "NO\n";
  return 0;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:2:3: error: 'string' was not declared in this scope
    2 |   string s, t; cin >> s >> t;
      |   ^~~~~~
a.cc:2:16: error: 'cin' was not declared in this scope
    2 |   string s, t; cin >> s >> t;
      |                ^~~
a.cc:2:23: error: 's' was not declared in this scope
    2 |   string s, t; cin >> s >> t;
      |                       ^
a.cc:2:28: error: 't' was not declared in this scope
    2 |   string s, t; cin >> s >> t;
      |                            ^
a.cc:3:52: error: 'cout' was not declared in this scope
    3 |   if(s[2] == t[0] && s[1] == t[1] && s[0] == t[2]) cout << "YES\n";
      |                                                    ^~~~
a.cc:4:8: error: 'cout' was not declared in this scope
    4 |   else cout << "NO\n";
      |        ^~~~
Language: C

#include<iostream>
using namespace std;
int main(){
  string a[3],b[3];
  cin>>a>>b;
  if((a[0]==b[2]&&a[1]==b[1])&&a[2]==b[0])cout<<"YES"<<endl;
  else cout<<"NO"<<endl;
}


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

#include<iostream>
using namespace std;
int main(){
  char a[3],b[3];
  cin>>a>>b;
  if((a[0]==b[2]&&a[1]==b[1])&&a[2]==b[0])cout<<"YES"<<endl;
  else cout<<"NO"<<endl;
}


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

#include<iostream>
using namespace std;
int main(){
 
  string a,b;
  cin>>a>>b;
  reverse(a.begin(),a.end());
  reverse(b.begin(),b.end());
  if(a==b)
    cout<<"YES"<<endl;
  else cout<<"NO"<<endl;
  
  
  return 0;
}


Compiler output:
a.cc: In function 'int main()':
a.cc:7:3: error: 'reverse' was not declared in this scope
    7 |   reverse(a.begin(),a.end());
      |   ^~~~~~~
Language: C++

#include<bits/stdc++.h>
using namespace std;
int main(){
 
  string a,b;
  cin>>a>>b;
  if(reverse(a.begin(),a.end())==reverse(b.begin(),b.end()))
    cout<<"YES"<<endl;
  else cout<<"NO"<<endl;
  
  
  return 0;
}


Compiler output:
a.cc: In function 'int main()':
a.cc:7:32: error: invalid operands of types 'void' and 'void' to binary 'operator=='
    7 |   if(reverse(a.begin(),a.end())==reverse(b.begin(),b.end()))
      |      ~~~~~~~~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~
      |             |                           |
      |             void                        void
Language: C++

#include<iostream>
using namespace std;
int main(){
 
  string a,b;
  cin>>a>>b;
  if(reverse(a.begin(),a.end())==reverse(b.begin(),b.end()))
    cout<<"YES"<<endl;
  else cout<<"NO"<<endl;
  
  
  return 0;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:7:6: error: 'reverse' was not declared in this scope
    7 |   if(reverse(a.begin(),a.end())==reverse(b.begin(),b.end()))
      |      ^~~~~~~
Language: C++

def resolve():
  a = input()
  b = input()
  if a[0] == b[2] and a[1] == b[1] and a[2] == b[0]:
    print('YES')
  else:
    print('NO')
  return

if __name__ == "__main__":
  resolve()


Compiler output:
a.cc:5:11: warning: multi-character character constant [-Wmultichar]
    5 |     print('YES')
      |           ^~~~~
a.cc:7:11: warning: multi-character character constant [-Wmultichar]
    7 |     print('NO')
      |           ^~~~
a.cc:1:1: error: 'def' does not name a type
    1 | def resolve():
      | ^~~
Language: C++

#include <iostream>
#include <vector> 

#include <algorithm>
#include <map>
#include <numeric>


int main()
{
  auto n = 0;
  std::cin >> n;
  
  auto top = std::vector<int>(n);
  for(auto i = 0; i < n; ++i) std::cin >> top[i];
  std::sort(top.begin(), top.end());
  
  auto middle = std::vector<int>(n);
  for(auto i = 0; i < n; ++i) std::cin >> middle[i];
  std::sort(middle.begin(), middle.end());
  
  auto bottom = std::vector<int>(n);
  for(auto i = 0; i < n; ++i) std::cin >> bottom[i];
  std::sort(bottom.begin(), bottom.end());   

  auto memo = std::map<int, int>();

  auto count = 0;

  for (auto it_m = middle.begin(); it_m != middle.end(); it_m++)
  {
    auto bot_upper = std::upper_bound(bottom.begin(), bottom.end(), *it_m);

    if ((*it_m == *bot_upper) && (it_m != middle.end() - 1)) ++bot_upper;

    if (memo[*it_m] == 0)
      memo[*it_m] = bottom.end() - bot_upper;
    else
      memo[*it_m] = memo[*bot_upper];
  }

  auto acc_sum_memo = std::map<int, int>();
  for (auto it = memo.begin(); it != memo.end(); it++)
  {
    auto sum = 0;
    for (auto it_sub = it; it_sub != memo.end(); it_sub++) sum += (*it_sub).second;

    acc_sum_memo[(*it).first] = sum;
  }

  for (auto it_t = top.begin(); it_t != top.end(); it_t++)
  {
    auto mid_upper = std::upper_bound(middle.begin(), middle.end(), *it_t);
    if (*it_t == *mid_upper) ++mid_upper;

    count += acc_sum_memo[*mid_upper];
  }

Compiler output:
a.cc: In function 'int main()':
a.cc:57:4: error: expected '}' at end of input
   57 |   }
      |    ^
a.cc:10:1: note: to match this '{'
   10 | {
      | ^
Language: C++



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

int main()
{
    
 char n,m,k,a,b,c;
 cin>>n>>m>>k;
 cin>>a>>b>>c;
 if((n==c)&&(m==b)&&(k==c))
cout<<"YES";
 else
 cout<< "NO";    
}
    return 0;
}


Compiler output:
a.cc:20:5: error: expected unqualified-id before 'return'
   20 |     return 0;
      |     ^~~~~~
a.cc:21:1: error: expected declaration before '}' token
   21 | }
      | ^
Language: C++

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

int main() {
   string s[2];
   rep(i, 2) {
       cin >> s[i]
   }

   if (s[0][0] == s[1][2] && s[0][1] == s[1][1] && s[0][2] == s[1][0]) {
       cout << "YES" << endl;
   } else {
       cout << "NO" << endl;
   }
}

Compiler output:
a.cc: In function 'int main()':
a.cc:10:19: error: expected ';' before '}' token
   10 |        cin >> s[i]
      |                   ^
      |                   ;
   11 |    }
      |    ~
Language: C++

#include <bits/stdc++.h>
using namespace std;
#define MOD 1000000007
#include <map>
typedef long long ll;
#define REP(i, n) for(ll i = 0; i < n; i++)
#define REPR(i, n) for(ll i = n; i >= 0; i--)
#define FOR(i, m, n) for(ll i = m; i < n; i++)
#define INF 2e9
#define ALL(v) v.begin(), v.end()
using Graph = vector<vector<int>>;


template<class T> inline bool chmin(T& a, T b) {
    if (a > b) {
        a = b;
        return true;
    }
    return false;
}
template<class T> inline bool chmax(T& a, T b) {
    if (a < b) {
        a = b;
        return true;
    }
    return false;
}




int main() {
    ll n;
    cin >> n;
    vector<ll> A(n);
    vector<ll> B(n);
    vector<ll> C(n);
    vector<ll> a;
    vector<ll> b;
    vector<ll> c;
    REP(i,n){
        cin >> A[i];
    }
    REP(i,n){
        cin >> B[i];
    }
    REP(i,n){
        cin >> C[i];
    }
    sort(A.begin(),A.end());
    sort(B.begin(),B.end());
    sort(C.begin(),C.end());
    // REP(i, n){
    //     if(i >0){
    //         if(a[a.size()-1] == A[i]) continue;
    //     }
    //     a.push_back(A[i]);
    // }
    // REP(i, n){
    //     if(i >0){
    //         if(b[b.size()-1] == B[i]) continue;
    //     }
    //     b.push_back(B[i]);
    // }
    // REP(i, n){
    //     if(i >0){
    //         if(c[c.size()-1] == C[i]) continue;
    //     }
    //     c.push_back(C[i]);
    // }
    ll ans = 0;
    REP(i, B.size()){
        //cout << "b= " << B[i] << endl;
        int num_a = (lower_bound(A.begin(),A.end(),B[i]) - A.begin());
        //cout << num_a << endl;
        int num_c = C.end() - (upper_bound(C.begin(),C.end(),B[i]) ;
        //cout << num_c << endl;
        ans += num_a * num_c;
    }
    cout << fixed << ans << endl;

}



Compiler output:
a.cc: In function 'int main()':
a.cc:76:67: error: expected ')' before ';' token
   76 |         int num_c = C.end() - (upper_bound(C.begin(),C.end(),B[i]) ;
      |                               ~                                   ^~
      |                                                                   )
Language: C

#include <stdio.h>
int main(){
  char[2][3] c, d;
  for(int i = 0; i < 2; i++){
    scanf("%s", c[i]);
    for(int j = 0; j < 3; j++){
      d[(1 + i) % 2][j] = c[i][2 - j]; 
    }
  }
  int flag = 0;
  for(int i = 0; i < 2; i++){
    for(int j = 0; j < 3; j++){
      if(c[i][j] != d[i][j]) flag = 1;
    }
  }
  if(flag == 0) printf("YES\n");
  else printf("NO\n");
}
  

Compiler output:
main.c: In function 'main':
main.c:3:7: error: expected identifier or '(' before '[' token
    3 |   char[2][3] c, d;
      |       ^
main.c:5:17: error: 'c' undeclared (first use in this function)
    5 |     scanf("%s", c[i]);
      |                 ^
main.c:5:17: note: each undeclared identifier is reported only once for each function it appears in
main.c:7:7: error: 'd' undeclared (first use in this function)
    7 |       d[(1 + i) % 2][j] = c[i][2 - j];
      |       ^
Language: C++

s = input()
t = input()
ok = True
if s[0] != t[2]: ok = False
if s[1] != t[1]: ok = False
if s[2] != t[0]: ok = False
if ok == 1: print("YES")
else: print("NO")

Compiler output:
a.cc:1:1: error: 's' does not name a type
    1 | s = input()
      | ^
Language: C++

#include <iostream>
#include <bitset>
#include <vector>
#include <string>
#include <algorithm>
#include <set>
#include <map>
#include <cmath>
#include <regex>
using namespace std;
using ll = long long int;
using dd = long double;
const ll MOD = 1e9 + 7;

vector<string> dfs(string s, ll depth, vector<char> symbol)
{
    vector<string> ret;
    if (depth == 0)
    {
        ret.push_back(s);
        return ret;
    }

    for (ll i = 0; i < symbol.size(); i++)
    {
        auto vec = dfs(s + symbol[i], depth - 1, symbol);
        for (auto &&e : vec)
        {
            ret.push_back(e);
        }
    }
    return ret;
}

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

int main()
{
    string s1, s2;
    cin >> s1 >> s2;
    
    reverse(s2.begin(), s2.end()
    bool ok = (s1 == s2));

    cout << (ok ? "YES" : "NO") << endl;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:49:33: error: expected ')' before 'bool'
   49 |     reverse(s2.begin(), s2.end()
      |            ~                    ^
      |                                 )
   50 |     bool ok = (s1 == s2));
      |     ~~~~                         
a.cc:52:14: error: 'ok' was not declared in this scope
   52 |     cout << (ok ? "YES" : "NO") << endl;
      |              ^~
Language: C++

#include <bits/stdc++.h>
using namespace std;
#define rep(i, srt, end) for (long long i = (srt); i < (long long)(end); i++)
#define VL vector<ll>
#define INF 100000000
typedef long long ll;
 
int main(){
    string a,b;
    if(a[0]==b[2]&&a[1]==b[1]&&a[2]==b[0])cout<<"YES"<<endl;
    else vout<<"NO"<<endl;
    return 0;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:11:10: error: 'vout' was not declared in this scope
   11 |     else vout<<"NO"<<endl;
      |          ^~~~
Language: Java

import java.util.Scanner;

public class Main2 {

	public static void main(String[] count) {

		Scanner scan = new Scanner(System.in);

		int N = Integer.parseInt(scan.next());

		int[] A = new int[N];
		for (int i = 0; i < N; i++) {
			A[i] = Integer.parseInt(scan.next());
		}
		int[] B = new int[N];
		for (int i = 0; i < N; i++) {
			B[i] = Integer.parseInt(scan.next());
		}
		int[] C = new int[N];
		for (int i = 0; i < N; i++) {
			C[i] = Integer.parseInt(scan.next());
		}

		
		scan.close();

		// start
		int result = 0;
		
		for (int i = 0; i < A.length; i++) {
			
			for (int j = 0; j < C.length; j++) {
				if (A[i] >= B[j]) {
					continue;
				}
				for (int j2 = 0; j2 < C.length; j2++) {
					if (B[j] >= C[j2]) {
						continue;
					}
					if (A[i] < B[j] && B[j] < C[j2]) {
						result ++;
					}
				}
			}
		}

		

		

		System.out.println(result);
	}

}


Compiler output:
Main.java:3: error: class Main2 is public, should be declared in a file named Main2.java
public class Main2 {
       ^
1 error
Language: C++

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

int main() {
　string s, t;
  cin >> s >> t;
  if(s.at(0) == t.at(2) && s.at(1) == t.at(1) && s.at(2) == t.at(0) ){
    cout << "YES" << endl;
  }
  else cout << "NO" << endl;
}


Compiler output:
a.cc:5:1: error: extended character 　 is not valid in an identifier
    5 | 　string s, t;
      | ^
a.cc: In function 'int main()':
a.cc:5:1: error: '\U00003000string' was not declared in this scope
    5 | 　string s, t;
      | ^~~~~~~~
a.cc:6:10: error: 's' was not declared in this scope
    6 |   cin >> s >> t;
      |          ^
a.cc:6:15: error: 't' was not declared in this scope; did you mean 'tm'?
    6 |   cin >> s >> t;
      |               ^
      |               tm
Language: C++

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

int main() {
 vector<char> f(3) ;
 vector<char> s(3) ;
  
  for(int i = 0 ; i < 2 ; i++){
    cin >> f[i] ;
  }
  for(int i = 0 ; i < 2 ; i++){
    cin >> s[i] ;
  }
  reverse(s.bigin(),s.end()) ;
  
  if(f==s) cout << "YES" << endl;
  else cout << "NO" << endl;
}


Compiler output:
a.cc: In function 'int main()':
a.cc:14:13: error: 'class std::vector<char>' has no member named 'bigin'; did you mean 'begin'?
   14 |   reverse(s.bigin(),s.end()) ;
      |             ^~~~~
      |             begin
Language: C++

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

int main() {
 vector<srring> f(3) ;
 vector<srting> s(3) ;
  
  for(int i = 0 ; i < 2 ; i++){
    cin >> f[i] ;
  }
  for(int i = 0 ; i < 2 ; i++){
    cin >> s[i] ;
  }
  reverse(s.bigin(),s.end()) ;
  
  if(f==s) cout << "YES" << endl;
  else cout << "NO" << endl;
}


Compiler output:
a.cc: In function 'int main()':
a.cc:5:9: error: 'srring' was not declared in this scope
    5 |  vector<srring> f(3) ;
      |         ^~~~~~
a.cc:5:15: error: template argument 1 is invalid
    5 |  vector<srring> f(3) ;
      |               ^
a.cc:5:15: error: template argument 2 is invalid
a.cc:6:9: error: 'srting' was not declared in this scope
    6 |  vector<srting> s(3) ;
      |         ^~~~~~
a.cc:6:15: error: template argument 1 is invalid
    6 |  vector<srting> s(3) ;
      |               ^
a.cc:6:15: error: template argument 2 is invalid
a.cc:9:13: error: invalid types 'int[int]' for array subscript
    9 |     cin >> f[i] ;
      |             ^
a.cc:12:13: error: invalid types 'int[int]' for array subscript
   12 |     cin >> s[i] ;
      |             ^
a.cc:14:13: error: request for member 'bigin' in 's', which is of non-class type 'int'
   14 |   reverse(s.bigin(),s.end()) ;
      |             ^~~~~
a.cc:14:23: error: request for member 'end' in 's', which is of non-class type 'int'
   14 |   reverse(s.bigin(),s.end()) ;
      |                       ^~~
Language: Java

import java.util.*;

public class Main{
      public static void main(String[] args) {
            Scanner sc = new Scanner(System.in);
            String str = sc.next();
            String str2 = sc.next();
            String[] str1a = str.split("");
            String[] str2a = str.split("");
            if(str1a[0].equals(str2[2]) && str1a[1].equals(str2a[1]) && str1a[2].equals(str2a[0])){
              System.out.println("YES");
            } else {
              System.out.println("NO");
            }
          }
}

Compiler output:
Main.java:10: error: array required, but String found
            if(str1a[0].equals(str2[2]) && str1a[1].equals(str2a[1]) && str1a[2].equals(str2a[0])){
                                   ^
1 error
Language: C++

#include <iostream>
using namespace std;

int main() {
    string u,d;
    cin>>u>>d;
    reverse(u.begin(),u.end());
    cout<<(u==d?"YES":"NO")<<endl;
}


Compiler output:
a.cc: In function 'int main()':
a.cc:7:5: error: 'reverse' was not declared in this scope
    7 |     reverse(u.begin(),u.end());
      |     ^~~~~~~
Language: C++

#include "stdio.h"
#include "iostream"

using namespace std;

int main(){
  vector<int> c(3), d(3);
  for(int i=0; i<3; i++) cin >> c[i];
  for(int j=0; j<3; j++) cin >> d[j];
  
  bool ok = true;
  if(c[0] != d[2]) ok = false;
  if(c[2] != d[0]) ok = false;
  if(c[1] != d[1]) ok = false;
  
  if(ok){
    	cout << "YES" << endl;
  }
  else{
    cout << "NO" << endl;
  }
  return 0;
}


Compiler output:
a.cc: In function 'int main()':
a.cc:7:3: error: 'vector' was not declared in this scope
    7 |   vector<int> c(3), d(3);
      |   ^~~~~~
a.cc:3:1: note: 'std::vector' is defined in header '<vector>'; this is probably fixable by adding '#include <vector>'
    2 | #include "iostream"
  +++ |+#include <vector>
    3 | 
a.cc:7:10: error: expected primary-expression before 'int'
    7 |   vector<int> c(3), d(3);
      |          ^~~
a.cc:8:33: error: 'c' was not declared in this scope
    8 |   for(int i=0; i<3; i++) cin >> c[i];
      |                                 ^
a.cc:9:33: error: 'd' was not declared in this scope
    9 |   for(int j=0; j<3; j++) cin >> d[j];
      |                                 ^
a.cc:12:6: error: 'c' was not declared in this scope
   12 |   if(c[0] != d[2]) ok = false;
      |      ^
a.cc:12:14: error: 'd' was not declared in this scope
   12 |   if(c[0] != d[2]) ok = false;
      |              ^
a.cc:13:6: error: 'c' was not declared in this scope
   13 |   if(c[2] != d[0]) ok = false;
      |      ^
a.cc:13:14: error: 'd' was not declared in this scope
   13 |   if(c[2] != d[0]) ok = false;
      |              ^
a.cc:14:6: error: 'c' was not declared in this scope
   14 |   if(c[1] != d[1]) ok = false;
      |      ^
a.cc:14:14: error: 'd' was not declared in this scope
   14 |   if(c[1] != d[1]) ok = false;
      |              ^
Language: C++

#include "stdio.h"
#include "iostream"

using namespace std;

int main(){
  vector<int> c(3), d(3);
  rep(i, 3) cin >> c[i];
  rep(j, 3) cin >> d[j];
  
  bool ok = true;
  if(c[0] != d[2]) ok = false;
  if(c[2] != d[0]) ok = false;
  if(c[1] != d[1]) ok = false;
  
  if(ok){
    	cout << "YES" << endl;
  }
  else{
    cout << "NO" << endl;
  }
  return 0;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:7:3: error: 'vector' was not declared in this scope
    7 |   vector<int> c(3), d(3);
      |   ^~~~~~
a.cc:3:1: note: 'std::vector' is defined in header '<vector>'; this is probably fixable by adding '#include <vector>'
    2 | #include "iostream"
  +++ |+#include <vector>
    3 | 
a.cc:7:10: error: expected primary-expression before 'int'
    7 |   vector<int> c(3), d(3);
      |          ^~~
a.cc:8:7: error: 'i' was not declared in this scope
    8 |   rep(i, 3) cin >> c[i];
      |       ^
a.cc:8:3: error: 'rep' was not declared in this scope
    8 |   rep(i, 3) cin >> c[i];
      |   ^~~
a.cc:9:7: error: 'j' was not declared in this scope
    9 |   rep(j, 3) cin >> d[j];
      |       ^
a.cc:12:6: error: 'c' was not declared in this scope
   12 |   if(c[0] != d[2]) ok = false;
      |      ^
a.cc:12:14: error: 'd' was not declared in this scope
   12 |   if(c[0] != d[2]) ok = false;
      |              ^
a.cc:13:6: error: 'c' was not declared in this scope
   13 |   if(c[2] != d[0]) ok = false;
      |      ^
a.cc:13:14: error: 'd' was not declared in this scope
   13 |   if(c[2] != d[0]) ok = false;
      |              ^
a.cc:14:6: error: 'c' was not declared in this scope
   14 |   if(c[1] != d[1]) ok = false;
      |      ^
a.cc:14:14: error: 'd' was not declared in this scope
   14 |   if(c[1] != d[1]) ok = false;
      |              ^
Language: C++

#include<bits/stdc++.h>
using namespace std;
char a[5],b[5];
int len=3;
int main()
{
    gets(a);
    gets(b);
    for(int i=0;i<len;i++)
    {
        a[i]=a[len-i-1];
    }
    for(int i=0;i<len/;i++)
    {
        if(a[i]!=b[i])
        {
            printf("NO\n");
            break;
        }
    }
    printf("YES\n");
    return 0;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:7:5: error: 'gets' was not declared in this scope; did you mean 'getw'?
    7 |     gets(a);
      |     ^~~~
      |     getw
a.cc:13:23: error: expected primary-expression before ';' token
   13 |     for(int i=0;i<len/;i++)
      |                       ^
Language: C++

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

int main() {
  string A,B;
  cin>>A>>B;
  if(A.at(0)==B.at(2)&&A.at(1)==B.at(1)&&A.at(2)==B.at(0)){
    cout<<"YES"<<endl;
  }
  else{
    cout<<NO<<endl;
  }
}


Compiler output:
a.cc: In function 'int main()':
a.cc:11:11: error: 'NO' was not declared in this scope
   11 |     cout<<NO<<endl;
      |           ^~
Language: C++

#include <bits/stdc++.h>
#define S second
#define F first
#define ll long long
#define ld long double

using namespace std;

const ll N = 1e6 + 5, mod = 1e9 + 7;

map<pair<int, pair<int, int> >, int> mop;

char s[N];
int sum[3];

int main()
{
    gets(s);
    string a = string(s);
    gets(s);
    string b = string(s);
    reverse(a.begin(), a.end());
    puts(a == b ? "YES" : "NO");
    return 0;
}


Compiler output:
a.cc: In function 'int main()':
a.cc:18:5: error: 'gets' was not declared in this scope; did you mean 'getw'?
   18 |     gets(s);
      |     ^~~~
      |     getw
Language: C++

#include<stdio.h>
#include<vector>
#include<string>
using namespace std;
int main() {
    char s1[5], s2[5];
    cin >> s1;
    cin >> s2;
    if (s1[0] == s2[2] && s1[1] == s2[1] && s1[2] == s2[0])
        cout << "YES";
    else
        cout << "NO";
    return 0;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:7:5: error: 'cin' was not declared in this scope
    7 |     cin >> s1;
      |     ^~~
a.cc:4:1: note: 'std::cin' is defined in header '<iostream>'; this is probably fixable by adding '#include <iostream>'
    3 | #include<string>
  +++ |+#include <iostream>
    4 | using namespace std;
a.cc:10:9: error: 'cout' was not declared in this scope
   10 |         cout << "YES";
      |         ^~~~
a.cc:10:9: note: 'std::cout' is defined in header '<iostream>'; this is probably fixable by adding '#include <iostream>'
a.cc:12:9: error: 'cout' was not declared in this scope
   12 |         cout << "NO";
      |         ^~~~
a.cc:12:9: note: 'std::cout' is defined in header '<iostream>'; this is probably fixable by adding '#include <iostream>'
Language: C++

#include<stdio.h>
#include<vector>
#include<string>
int main() {
    char s1[5], s2[5];
    cin >> s1;
    cin >> s2;
    if (s1[0] == s2[2] && s1[1] == s2[1] && s1[2] == s2[0])
        cout << "YES";
    else
        cout << "NO";
    return 0;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:6:5: error: 'cin' was not declared in this scope
    6 |     cin >> s1;
      |     ^~~
a.cc:9:9: error: 'cout' was not declared in this scope
    9 |         cout << "YES";
      |         ^~~~
a.cc:11:9: error: 'cout' was not declared in this scope
   11 |         cout << "NO";
      |         ^~~~
Language: C++

<?php
  $c1 = trim(fgets(STDIN));
  $c2 = trim(fgets(STDIN));
  
  $rev_c1 = strrev($c1);
  $rev_c2 = strrev($c2);
  if($c1 == $rev_c2 && $c2 == $rev_c1){
    echo "YES\n";
  }else{
    echo "NO\n";
  }

Compiler output:
a.cc:1:1: error: expected unqualified-id before '<' token
    1 | <?php
      | ^
a.cc:3:3: error: '$c2' does not name a type
    3 |   $c2 = trim(fgets(STDIN));
      |   ^~~
a.cc:5:3: error: '$rev_c1' does not name a type
    5 |   $rev_c1 = strrev($c1);
      |   ^~~~~~~
a.cc:6:3: error: '$rev_c2' does not name a type
    6 |   $rev_c2 = strrev($c2);
      |   ^~~~~~~
a.cc:7:3: error: expected unqualified-id before 'if'
    7 |   if($c1 == $rev_c2 && $c2 == $rev_c1){
      |   ^~
a.cc:9:4: error: expected unqualified-id before 'else'
    9 |   }else{
      |    ^~~~
Language: C

#include <stdio.h>
#include <string.h>
int main()
{
    char str[4],str1[4];
    scanf("%[^\n]",str);
    scanf(" %[^\n]",str1);
    strrev(str1);
    if(strcmp(str, str1)==0){
        printf("YES\n");
    }
    else printf("NO\n");

    return 0;
}


Compiler output:
main.c: In function 'main':
main.c:8:5: error: implicit declaration of function 'strrev'; did you mean 'strsep'? [-Wimplicit-function-declaration]
    8 |     strrev(str1);
      |     ^~~~~~
      |     strsep
Language: C++

#include<iostream>
#include<vector>
#include<set>
#include<string>
typedef long long int lli;
using namespace std;
int main(){
    ios::sync_with_stdio(false);
    cin.tie(NULL);
    vector<string> v;
    vector<string> v1;
    
    string s1;
    string s2;
    
    cin >> s1;
    cin>>s2;
    v.push_back(s2);
    reverse(s1.begin(), s1.end());
    v1.push_back(s1);
   // cout<<s1<<"\n";
   if(v==v1){
        cout<<"YES"<<"\n";
    }else{
        cout<<"NO"<<"\n";
    }
    return 0;
}

//100 >1000
//10000 > 1000000

Compiler output:
a.cc: In function 'int main()':
a.cc:19:5: error: 'reverse' was not declared in this scope
   19 |     reverse(s1.begin(), s1.end());
      |     ^~~~~~~
Language: C

#include <stdio.h>
#include <string.h>
#define M 100

int main()
{
    char str1[M],str2[M];
    int res;

    gets(str1);
    gets(str2);

    strrev(str2);
    res=strcmp(str1, str2);

    if(res == 0){
        printf("YES\n");
    }

    else{
        printf("NO\n");
    }

    return 0;
}


Compiler output:
main.c: In function 'main':
main.c:10:5: error: implicit declaration of function 'gets'; did you mean 'fgets'? [-Wimplicit-function-declaration]
   10 |     gets(str1);
      |     ^~~~
      |     fgets
main.c:13:5: error: implicit declaration of function 'strrev'; did you mean 'strsep'? [-Wimplicit-function-declaration]
   13 |     strrev(str2);
      |     ^~~~~~
      |     strsep
Language: C++

#include<iostream>
#include<string>
#include<vector>
using namespace std;
int main()
{
  int i, j;
  vector <char> a;
  for(int i = 0; i < 2; i++)
  {
    for(int j = 0; j < 3; j++)
      cin >>a[i][j];
  }
  if(a[0][0] == a[1][2] && a[0][1] == a[1][1] && a[0][2] == a[1][0])
    cout << "Yes";
  else cout << "No";
  return 0;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:12:17: error: invalid types '__gnu_cxx::__alloc_traits<std::allocator<char>, char>::value_type {aka char}[int]' for array subscript
   12 |       cin >>a[i][j];
      |                 ^
a.cc:14:10: error: invalid types '__gnu_cxx::__alloc_traits<std::allocator<char>, char>::value_type {aka char}[int]' for array subscript
   14 |   if(a[0][0] == a[1][2] && a[0][1] == a[1][1] && a[0][2] == a[1][0])
      |          ^
a.cc:14:21: error: invalid types '__gnu_cxx::__alloc_traits<std::allocator<char>, char>::value_type {aka char}[int]' for array subscript
   14 |   if(a[0][0] == a[1][2] && a[0][1] == a[1][1] && a[0][2] == a[1][0])
      |                     ^
a.cc:14:32: error: invalid types '__gnu_cxx::__alloc_traits<std::allocator<char>, char>::value_type {aka char}[int]' for array subscript
   14 |   if(a[0][0] == a[1][2] && a[0][1] == a[1][1] && a[0][2] == a[1][0])
      |                                ^
a.cc:14:43: error: invalid types '__gnu_cxx::__alloc_traits<std::allocator<char>, char>::value_type {aka char}[int]' for array subscript
   14 |   if(a[0][0] == a[1][2] && a[0][1] == a[1][1] && a[0][2] == a[1][0])
      |                                           ^
a.cc:14:54: error: invalid types '__gnu_cxx::__alloc_traits<std::allocator<char>, char>::value_type {aka char}[int]' for array subscript
   14 |   if(a[0][0] == a[1][2] && a[0][1] == a[1][1] && a[0][2] == a[1][0])
      |                                                      ^
a.cc:14:65: error: invalid types '__gnu_cxx::__alloc_traits<std::allocator<char>, char>::value_type {aka char}[int]' for array subscript
   14 |   if(a[0][0] == a[1][2] && a[0][1] == a[1][1] && a[0][2] == a[1][0])
      |                                                                 ^
Language: C++

#include<iostream>
#include<string>
#include<vector>
using namespace std;
int main()
{
  int i, j;
  char a;
  for(int i = 0; i < 2; i++)
  {
    for(int j = 0; j < 3; j++)
      cin >>a[i][j];
  }
  if(a[0][0] == a[1][2] && a[0][1] == a[1][1] && a[0][2] == a[1][0])
    cout << "Yes";
  else cout << "No";
  return 0;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:12:14: error: invalid types 'char[int]' for array subscript
   12 |       cin >>a[i][j];
      |              ^
a.cc:14:7: error: invalid types 'char[int]' for array subscript
   14 |   if(a[0][0] == a[1][2] && a[0][1] == a[1][1] && a[0][2] == a[1][0])
      |       ^
a.cc:14:18: error: invalid types 'char[int]' for array subscript
   14 |   if(a[0][0] == a[1][2] && a[0][1] == a[1][1] && a[0][2] == a[1][0])
      |                  ^
a.cc:14:29: error: invalid types 'char[int]' for array subscript
   14 |   if(a[0][0] == a[1][2] && a[0][1] == a[1][1] && a[0][2] == a[1][0])
      |                             ^
a.cc:14:40: error: invalid types 'char[int]' for array subscript
   14 |   if(a[0][0] == a[1][2] && a[0][1] == a[1][1] && a[0][2] == a[1][0])
      |                                        ^
a.cc:14:51: error: invalid types 'char[int]' for array subscript
   14 |   if(a[0][0] == a[1][2] && a[0][1] == a[1][1] && a[0][2] == a[1][0])
      |                                                   ^
a.cc:14:62: error: invalid types 'char[int]' for array subscript
   14 |   if(a[0][0] == a[1][2] && a[0][1] == a[1][1] && a[0][2] == a[1][0])
      |                                                              ^
Language: C++

#include<iostream>
using namespace std;
int main(void){
    string first,second;
    cin >> first >> second;
    reverse(second.begin(),second.end());
    if(first == second){
        cout << "YES";
    }else{
        cout << "NO";
    }
}

Compiler output:
a.cc: In function 'int main()':
a.cc:6:5: error: 'reverse' was not declared in this scope
    6 |     reverse(second.begin(),second.end());
      |     ^~~~~~~
Language: C++

#include <bits/stdc++.h>
using namespace std;
 
int main() {
  long long A,B,C,D,H,K,L,M,N,T,W,X;
  string S,S2;
  cin >> S >> S2;
  if (S[0]=S2[2] && S[1]=S2[1] && S[2]=S2[0]) {cout << "YES" << endl;} else {cout << "NO" << endl;}
  
  
  
}

Compiler output:
a.cc: In function 'int main()':
a.cc:8:32: error: lvalue required as left operand of assignment
    8 |   if (S[0]=S2[2] && S[1]=S2[1] && S[2]=S2[0]) {cout << "YES" << endl;} else {cout << "NO" << endl;}
Language: C++

#include<bits/stdc++.h>
using namespace std;
string s,a,s2;
int main(){
    cin>>s>>a;
    for(int i=s.length;i>=0;i--){
        s2+=s[i];
    }
    if(s2==a) cout<<"YES";
    else cout<<"NO";
    return 0;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:6:17: error: cannot convert 'std::__cxx11::basic_string<char>::length' 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'
    6 |     for(int i=s.length;i>=0;i--){
      |                 ^~~~~~
Language: C++

#include<iostream>
using nameaspace std;
int main(){
    char a[6];
    for(int i=0;i<6;i++)cin>>a[i];
    if(a[0]==a[5]&&a[1]==a[4]&&a[2]==a[3])cout<<"YES";
    else cout<<"NO";
    cout<<endl;
    return 0;
}

Compiler output:
a.cc:2:7: error: expected nested-name-specifier before 'nameaspace'
    2 | using nameaspace std;
      |       ^~~~~~~~~~
a.cc: In function 'int main()':
a.cc:5:25: error: 'cin' was not declared in this scope; did you mean 'std::cin'?
    5 |     for(int i=0;i<6;i++)cin>>a[i];
      |                         ^~~
      |                         std::cin
In file included from a.cc:1:
/usr/include/c++/14/iostream:62:18: note: 'std::cin' declared here
   62 |   extern istream cin;           ///< Linked to standard input
      |                  ^~~
a.cc:6:43: error: 'cout' was not declared in this scope; did you mean 'std::cout'?
    6 |     if(a[0]==a[5]&&a[1]==a[4]&&a[2]==a[3])cout<<"YES";
      |                                           ^~~~
      |                                           std::cout
/usr/include/c++/14/iostream:63:18: note: 'std::cout' declared here
   63 |   extern ostream cout;          ///< Linked to standard output
      |                  ^~~~
a.cc:7:10: error: 'cout' was not declared in this scope; did you mean 'std::cout'?
    7 |     else cout<<"NO";
      |          ^~~~
      |          std::cout
/usr/include/c++/14/iostream:63:18: note: 'std::cout' declared here
   63 |   extern ostream cout;          ///< Linked to standard output
      |                  ^~~~
a.cc:8:5: error: 'cout' was not declared in this scope; did you mean 'std::cout'?
    8 |     cout<<endl;
      |     ^~~~
      |     std::cout
/usr/include/c++/14/iostream:63:18: note: 'std::cout' declared here
   63 |   extern ostream cout;          ///< Linked to standard output
      |                  ^~~~
a.cc:8:11: error: 'endl' was not declared in this scope; did you mean 'std::endl'?
    8 |     cout<<endl;
      |           ^~~~
      |           std::endl
In file included from /usr/include/c++/14/iostream:41:
/usr/include/c++/14/ostream:744:5: note: 'std::endl' declared here
  744 |     endl(basic_ostream<_CharT, _Traits>& __os)
      |     ^~~~
Language: C++

#include <iostream>
#include <string>

using namespace std;

int main()
{
	string s[2];
	cin >> s[0] >> s[1];
	reverse(s[1].begin(), s[1].end());
	
	if (s[0] == s[1]) {
		cout << "YES" << endl;
	}
	else {
		cout << "NO" << endl;
	}

	return 0;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:10:9: error: 'reverse' was not declared in this scope
   10 |         reverse(s[1].begin(), s[1].end());
      |         ^~~~~~~
Language: C++

#include<iostream>
#include<cstdio>
#include<algorithm>
#include<cstring>
#include<string>
#define WE using
#define ARE namespace
#define READY std
#define we 
#define have 
#define name 
#define write cout
#define out <<
#define read cin
#define in >>
#define integer int
#define add +
#define reduce -
#define multiply *
#define end return
#define line endl
#define loop while
#define le(x,y) x<y
#define gr(x,y) x>y
#define eq ==
#define is =
#define leeq(x,y) x<=y
#define greq(x,y) x>=y
#define lifesaving long long
#define saving long
#define savinginteger long int
#define floating float
#define dfloating double
#define character char
#define roundle(I, X, N) for(integer I = X; I <= N; I++)
#define roundgr(I, X, N) for(integer I = X; I >= N; I--)
#define truefalse bool
#define mod %
#define invariable const
#define And ,
#define uneq(x,y) x!=y
#define _max(x,y) x>y?x:y
#define _min(x,y) x<y?x:y
#define average(x,y) (x+y)/2.0//仅限于浮点数
#define lens(S) strlen(S)
#define function void
#define slens(S) S.length()
#define reversal(S) reverse(S.begin(),S.end());
WE ARE READY;
void text(string s) {
	cout << s;
}
string a And b And c And d;
we have integer main() {
	read in a in b;
	integer lena is slens(a) And lenb is slens(b);
	c is reversal(a) And d is reversal(b);
	if (a eq d or b eq c) {
		text("YES");
	}
	else {
		text("NO");
	}
	text("\n");
	end 0;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:20:13: error: expected unqualified-id before 'return'
   20 | #define end return
      |             ^~~~~~
a.cc:48:41: note: in expansion of macro 'end'
   48 | #define reversal(S) reverse(S.begin(),S.end());
      |                                         ^~~
a.cc:57:14: note: in expansion of macro 'reversal'
   57 |         c is reversal(a) And d is reversal(b);
      |              ^~~~~~~~
a.cc:40:13: error: expected primary-expression before ',' token
   40 | #define And ,
      |             ^
a.cc:57:26: note: in expansion of macro 'And'
   57 |         c is reversal(a) And d is reversal(b);
      |                          ^~~
a.cc:20:13: error: expected unqualified-id before 'return'
   20 | #define end return
      |             ^~~~~~
a.cc:48:41: note: in expansion of macro 'end'
   48 | #define reversal(S) reverse(S.begin(),S.end());
      |                                         ^~~
a.cc:57:35: note: in expansion of macro 'reversal'
   57 |         c is reversal(a) And d is reversal(b);
      |                                   ^~~~~~~~
Language: C++

#include<iostream>
#include<cstdio>
#include<algorithm>
#include<cstring>
#include<string>
#define WE using
#define ARE namespace
#define READY std
#define we 
#define have 
#define name 
#define write cout
#define out <<
#define read cin
#define in >>
#define integer int
#define add +
#define reduce -
#define multiply *
#define end return
#define line endl
#define loop while
#define le(x,y) x<y
#define gr(x,y) x>y
#define eq ==
#define is =
#define leeq(x,y) x<=y
#define greq(x,y) x>=y
#define lifesaving long long
#define saving long
#define savinginteger long int
#define floating float
#define dfloating double
#define character char
#define roundle(I, X, N) for(integer I = X; I <= N; I++)
#define roundgr(I, X, N) for(integer I = X; I >= N; I--)
#define truefalse bool
#define mod %
#define invariable const
#define And ,
#define uneq(x,y) x!=y
#define _max(x,y) x>y?x:y
#define _min(x,y) x<y?x:y
#define average(x,y) (x+y)/2.0//仅限于浮点数
#define lens(S) strlen(S)
#define function void
#define slens(S) S.length()
#define reversal(S) reverse(S.begin(),S.end());
WE ARE READY;
void text(string s) {
	cout << s;
}
string a And b And c And d;
we have integer main() {
	read in a in b;
	integer lena is slens(a) And lenb is slens(b);
	c is reversal(a) And d is reversal(b);
	if (a eq d or b eq c) {
		text(YES)
	}
	else {
		text(NO);
	}
	text("\n");
	end 0;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:20:13: error: expected unqualified-id before 'return'
   20 | #define end return
      |             ^~~~~~
a.cc:48:41: note: in expansion of macro 'end'
   48 | #define reversal(S) reverse(S.begin(),S.end());
      |                                         ^~~
a.cc:57:14: note: in expansion of macro 'reversal'
   57 |         c is reversal(a) And d is reversal(b);
      |              ^~~~~~~~
a.cc:40:13: error: expected primary-expression before ',' token
   40 | #define And ,
      |             ^
a.cc:57:26: note: in expansion of macro 'And'
   57 |         c is reversal(a) And d is reversal(b);
      |                          ^~~
a.cc:20:13: error: expected unqualified-id before 'return'
   20 | #define end return
      |             ^~~~~~
a.cc:48:41: note: in expansion of macro 'end'
   48 | #define reversal(S) reverse(S.begin(),S.end());
      |                                         ^~~
a.cc:57:35: note: in expansion of macro 'reversal'
   57 |         c is reversal(a) And d is reversal(b);
      |                                   ^~~~~~~~
a.cc:59:22: error: 'YES' was not declared in this scope
   59 |                 text(YES)
      |                      ^~~
a.cc:62:22: error: 'NO' was not declared in this scope
   62 |                 text(NO);
      |                      ^~
Language: C++

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

int main() {
  char s[3][5];
  scanf"%s", s[0]);
  scanf"%s", s[1]);
  if(s[0][0]==s[1][2] && s[1][0]==s[0][2] && s[0][1]==s[1][1])
    puts("YES");
  else puts("NO");
  
  return 0;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:6:8: error: expected ';' before string constant
    6 |   scanf"%s", s[0]);
      |        ^~~~
      |        ;
a.cc:7:8: error: expected ';' before string constant
    7 |   scanf"%s", s[1]);
      |        ^~~~
      |        ;
Language: C++

// 失敗するからこそ そこから立ち向かって行く強さがあってそんな強さが本当の強さだと私は思うから
// ぜったいあきらめない
#if defined(DAIJOBU)
#include "/home/ichigo/includes.hpp"
#include "/home/ichigo/debug.hpp"
#define deb(x...) cerr << "[" << #x << "] = ["; _print(x)
#else
#include <bits/stdc++.h>
#define deb(x...)
#endif
#define FIO {ios::sync_with_stdio(0);cin.tie(nullptr);cout.tie(nullptr);}

using namespace std;
mt19937 rng(chrono::steady_clock::now().time_since_epoch().count());


int main(){
	FIO
	
	string s, t;
	cin >> s >> t;
	reverse(s.begin(), s.end());
	i(s == t)puts("YES");
	else puts("NO");
 	return 0; 
}


Compiler output:
a.cc: In function 'int main()':
a.cc:23:9: error: 'i' was not declared in this scope
   23 |         i(s == t)puts("YES");
      |         ^
a.cc:24:9: error: 'else' without a previous 'if'
   24 |         else puts("NO");
      |         ^~~~
Language: C

#include <stdio.h>
#include <stdlib.h>
#include<string.h>

int main()
{
    char arr[5][5],s1[5],s2[5];

    printf("Hi\n");
    scanf("%s",arr[0]);
    scanf("%s",arr[1]);

    strcpy(s1,arr[0]);
    strcpy(s2,arr[1]);

    strrev(s1);
    strrev(s2);
    printf("%s\n%s\n%s\n%s\n",arr[0],s1,arr[1],s2);
    if(strcmp(s1,arr[1])==0 && strcmp(s2,arr[0])==0)
        printf("YES");
    else
        printf("NO");

    return 0;
}


Compiler output:
main.c: In function 'main':
main.c:16:5: error: implicit declaration of function 'strrev'; did you mean 'strsep'? [-Wimplicit-function-declaration]
   16 |     strrev(s1);
      |     ^~~~~~
      |     strsep
Language: C++

#include<iostream>
using namespace std;

int main()
{
char ch[6];
int i;
for(i=0;i<6;i++)
{
	cin>>ch[i];
}
if(ch[0]==ch[5]&&ch[1]==ch[4]&&ch[2]==ch[3])
{
  cout<<"YES"<<endl;
}
else 
  cout<<"NO";<<endl;
}


Compiler output:
a.cc: In function 'int main()':
a.cc:17:14: error: expected primary-expression before '<<' token
   17 |   cout<<"NO";<<endl;
      |              ^~
Language: C++

#include<stdio.h>
void main()
{
char a[2][3];
int i,j,flag=0;
char enter;
for(i=0;i<2;i++)
{
for(j=0;j<3;j++)
scanf("%c",&a[i][j]);
scanf("%c",&enter);
}
for(i=0;i<3;i++)
{
if(a[0][i]==a[1][2-i])
continue;
else
{flag=1;break;
}
}
if(flag==1)
printf("NO");
else
printf("YES");
}

Compiler output:
a.cc:2:1: error: '::main' must return 'int'
    2 | void main()
      | ^~~~
Language: Java

import java.util.*;
import java.lang.*;
import java.io.*;
public class codechef
{
	public static void main (String[] args) throws java.lang.Exception
	{
		String s,s1;
		Scanner sc =new Scanner(System.in);
		int k=0;
		s=sc.next();
		s1=sc.next();
		for(int i=0;i<3;i++)
		{
		        if(s.charAt(i)!=s1.charAt(2-i))
		        {
		            k=1;
		        }
		}
		if(k==1)
		{
		    System.out.println("NO");
		}
		else
		{
		    System.out.println("YES");
		}
	}
}


Compiler output:
Main.java:4: error: class codechef is public, should be declared in a file named codechef.java
public class codechef
       ^
1 error
Language: Java

class Solution{

public static void main(String []a)
{
Scanner sc = new Scanner(System.in);
System.out.println("Enter the number N");
int N = sc.nextInt();
int num=0;
for(int i=0;i<=N/2;i++)
{
if(i*i<=N)
num=i*i;
}
System.out.println("The maximun square is "+num);
}
}

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

#include<stdio.h>
main()
{
int i.j;
char A[2][3];
for(i=0;i,2;i++)
for(j=0;j<3;j++)
scanf("%c",&A[i][j]);
if(A[0][0]==A[1][2] && A[0][1]==A[1][1] && A[1][2]==A[2][1])
printf("YES");
else printf("NO");
}

Compiler output:
main.c:2:1: error: return type defaults to 'int' [-Wimplicit-int]
    2 | main()
      | ^~~~
main.c: In function 'main':
main.c:4:6: error: expected '=', ',', ';', 'asm' or '__attribute__' before '.' token
    4 | int i.j;
      |      ^
main.c:4:6: error: expected expression before '.' token
main.c:6:5: error: 'i' undeclared (first use in this function)
    6 | for(i=0;i,2;i++)
      |     ^
main.c:6:5: note: each undeclared identifier is reported only once for each function it appears in
main.c:7:5: error: 'j' undeclared (first use in this function)
    7 | for(j=0;j<3;j++)
      |     ^
Language: C++

#include<iostream>
#include<vector>
#include<algorithm>

using namespace std;

int main()
{

vector<vector<int>> c;
int i,j;

for(i=1;i<=2;i++)
{
for(j=1;j<=3;j++)
{

cin>>c[i][j];
}}

reverse(c[2].begin,c[2].end);

if(c[1]==c[2])
cout<<"YES"<<endl;
else
cout<<"NO"<<endl;

return 0;
}




Compiler output:
a.cc: In function 'int main()':
a.cc:21:8: error: no matching function for call to 'reverse(<unresolved overloaded function type>, <unresolved overloaded function type>)'
   21 | reverse(c[2].begin,c[2].end);
      | ~~~~~~~^~~~~~~~~~~~~~~~~~~~~
In file included from /usr/include/c++/14/algorithm:61,
                 from a.cc:3:
/usr/include/c++/14/bits/stl_algo.h:1083:5: note: candidate: 'template<class _BIter> void std::reverse(_BIter, _BIter)'
 1083 |     reverse(_BidirectionalIterator __first, _BidirectionalIterator __last)
      |     ^~~~~~~
/usr/include/c++/14/bits/stl_algo.h:1083:5: note:   template argument deduction/substitution failed:
a.cc:21:8: note:   couldn't deduce template parameter '_BIter'
   21 | reverse(c[2].begin,c[2].end);
      | ~~~~~~~^~~~~~~~~~~~~~~~~~~~~
In file included from /usr/include/c++/14/algorithm:86:
/usr/include/c++/14/pstl/glue_algorithm_defs.h:249:1: note: candidate: 'template<class _ExecutionPolicy, class _BidirectionalIterator> __pstl::__internal::__enable_if_execution_policy<_ExecutionPolicy, void> std::reverse(_ExecutionPolicy&&, _BidirectionalIterator, _BidirectionalIterator)'
  249 | reverse(_ExecutionPolicy&& __exec, _BidirectionalIterator __first, _BidirectionalIterator __last);
      | ^~~~~~~
/usr/include/c++/14/pstl/glue_algorithm_defs.h:249:1: note:   candidate expects 3 arguments, 2 provided
Language: C++

#include <iostream>
using namespace std;

int main()
{
   char a[2][3],b[2][3];
   int i,j;
   for(i=0;i<2i++)
   {
      for(j=0;j<3;j++)
        cin>>a[i][j];

   }
  int m,n;
  m=1;
  for(i=0;i<2;i++)
   {    n=2;
       for(j=0;j<3;j++)
       {
        b[i][j]=a[m][n]
        n--;
       }
       m--;
   }
    for(i=0;i<2;i++)
   {
      for(j=0;j<3;j++)
      {
        if(a[i][j]!=b[i][j])
        {cout<<"NO";
            exit(0);
      }
      }
   }
       cout<<"YES";
   }

    return 0;
}


Compiler output:
a.cc: In function 'int main()':
a.cc:8:16: error: lvalue required as increment operand
    8 |    for(i=0;i<2i++)
      |                ^~
a.cc:8:18: error: expected ';' before ')' token
    8 |    for(i=0;i<2i++)
      |                  ^
      |                  ;
a.cc:20:24: error: expected ';' before 'n'
   20 |         b[i][j]=a[m][n]
      |                        ^
      |                        ;
   21 |         n--;
      |         ~               
a.cc: At global scope:
a.cc:38:5: error: expected unqualified-id before 'return'
   38 |     return 0;
      |     ^~~~~~
a.cc:39:1: error: expected declaration before '}' token
   39 | }
      | ^
Language: C++

#include <iostream>
using namespace std;

int main()
{
   char a[2][3],b[2][3];
   int i,j;
   for(i=0;i<2i++)
   {
      for(j=0;j<3;j++)
        cin>>a[i][j];

   }
  int m,n;
  m=1;
  for(i=0;i<2;i++)
   {    n=2;
       for(j=0;j<3;j++)
       {
        b[i][j]=a[m][n]
        n--;
       }
       m--;
   }
    for(i=0;i<2i++)
   {
      for(j=0;j<3;j++)
      {
        if(a[i][j]!=b[i][j])
        {cout<<"NO";
            exit(0);
      }
      }
   }
       cout<<"YES";
   }

    return 0;
}


Compiler output:
a.cc: In function 'int main()':
a.cc:8:16: error: lvalue required as increment operand
    8 |    for(i=0;i<2i++)
      |                ^~
a.cc:8:18: error: expected ';' before ')' token
    8 |    for(i=0;i<2i++)
      |                  ^
      |                  ;
a.cc:20:24: error: expected ';' before 'n'
   20 |         b[i][j]=a[m][n]
      |                        ^
      |                        ;
   21 |         n--;
      |         ~               
a.cc:25:17: error: lvalue required as increment operand
   25 |     for(i=0;i<2i++)
      |                 ^~
a.cc:25:19: error: expected ';' before ')' token
   25 |     for(i=0;i<2i++)
      |                   ^
      |                   ;
a.cc: At global scope:
a.cc:38:5: error: expected unqualified-id before 'return'
   38 |     return 0;
      |     ^~~~~~
a.cc:39:1: error: expected declaration before '}' token
   39 | }
      | ^