Language: C++

#include<bits/stdc++.h>
int  main(){
  int a,b,c
    cin>>a>>b>>c;
  if(1=<a&&c>=10){
    if((a==5&&b==5&&a==7)||(a==5&&c==5&&b==7)||(b==5&&c==5&&a==7)){
      cout<<YES<<endl;
    }
    else{
      cout<<NO<<endl;
  }
    else{
      cout<<no<<endl;
    }
  }
      
    
    

Compiler output:
a.cc: In function 'int main()':
a.cc:4:5: error: expected initializer before 'cin'
    4 |     cin>>a>>b>>c;
      |     ^~~
a.cc:5:8: error: expected primary-expression before '<' token
    5 |   if(1=<a&&c>=10){
      |        ^
a.cc:5:12: error: 'c' was not declared in this scope
    5 |   if(1=<a&&c>=10){
      |            ^
a.cc:7:7: error: 'cout' was not declared in this scope; did you mean 'std::cout'?
    7 |       cout<<YES<<endl;
      |       ^~~~
      |       std::cout
In file included from /usr/include/x86_64-linux-gnu/c++/14/bits/stdc++.h:146,
                 from a.cc:1:
/usr/include/c++/14/iostream:63:18: note: 'std::cout' declared here
   63 |   extern ostream cout;          ///< Linked to standard output
      |                  ^~~~
a.cc:7:13: error: 'YES' was not declared in this scope
    7 |       cout<<YES<<endl;
      |             ^~~
a.cc:7:18: error: 'endl' was not declared in this scope; did you mean 'std::endl'?
    7 |       cout<<YES<<endl;
      |                  ^~~~
      |                  std::endl
In file included from /usr/include/c++/14/istream:41,
                 from /usr/include/c++/14/sstream:40,
                 from /usr/include/c++/14/complex:45,
                 from /usr/include/c++/14/ccomplex:39,
                 from /usr/include/x86_64-linux-gnu/c++/14/bits/stdc++.h:127:
/usr/include/c++/14/ostream:744:5: note: 'std::endl' declared here
  744 |     endl(basic_ostream<_CharT, _Traits>& __os)
      |     ^~~~
a.cc:10:7: error: 'cout' was not declared in this scope; did you mean 'std::cout'?
   10 |       cout<<NO<<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:10:13: error: 'NO' was not declared in this scope
   10 |       cout<<NO<<endl;
      |             ^~
a.cc:10:17: error: 'endl' was not declared in this scope; did you mean 'std::endl'?
   10 |       cout<<NO<<endl;
      |                 ^~~~
      |                 std::endl
/usr/include/c++/14/ostream:744:5: note: 'std::endl' declared here
  744 |     endl(basic_ostream<_CharT, _Traits>& __os)
      |     ^~~~
a.cc:12:5: error: expected '}' before 'else'
   12 |     else{
      |     ^~~~
a.cc:5:18: note: to match this '{'
    5 |   if(1=<a&&c>=10){
      |                  ^
a.cc:13:7: error: 'cout' was not declared in this scope; did you mean 'std::cout'?
   13 |       cout<<no<<endl;
      |       ^~~~
      |       std::cout
/usr/include/c++/14/iostream:63:18: note: 'std::cout' declared here
   63 |   extern ostream cout;          ///< Linked to standard output
      |                  ^~~~
a.cc:13:13: error: 'no' was not declared in this scope
   13 |       cout<<no<<endl;
      |             ^~
a.cc:13:17: error: 'endl' was not declared in this scope; did you mean 'std::endl'?
   13 |       cout<<no<<endl;
      |                 ^~~~
      |                 std::endl
/usr/include/c++/14/ostream:744:5: note: 'std::endl' declared here
  744 |     endl(basic_ostream<_CharT, _Traits>& __os)
      |     ^~~~