Language: C++

#pragma warning(disable:4996)
#pragma comment(linker, "/STACK:336777216")
#pragma GCC optimize("Ofast")

#include<bits/stdc++.h>
#include <ext/pb_ds/assoc_container.hpp>
#include <ext/pb_ds/tree_policy.hpp>
#include <functional>

using namespace std;
using namespace __gnu_pbds;

typedef long long ll;
#define int long long int
typedef complex<long double> cd;
const long double pi=acos(-1);
typedef double db;
typedef long double ldb;
typedef pair <int, int> pii;
typedef pair <db, db> pdd;
typedef vector<int> vi;
typedef vector<vector<int> > matrix;

#define m1 make_pair
#define pb push_back
#define flush fflush(stdout)
#define IOS std::ios::sync_with_stdio(false); cin.tie(NULL);cout.tie(NULL);
#define reset(x,v) memset(x,v,sizeof(x))

#define fi first
#define se second
#define endl "\n"
#define debug(x) (cerr << #x << ": " << x << "\n")
#define setbits(x) __builtin_popcount(x)
#define setbitsll(x) __builtin_popcountll(x)
#define all(x) x.begin(),x.end()
#define pii pair<int,int>

inline ll gcd(ll a,ll b){if(a==0) return b;return gcd(b%a,a);}
inline ll power(ll a,ll n,ll m){if(n==0)return 1;ll p=power(a,n/2,m);p=(p%m*p%m)%m;if(n%2) return (p%m*a%m)%m;else return p;}
const double EPS = 1e-9;
const ll MOD =998244353;
const ll hell=1000000007;
const int INF = 1e16;
const ll LL_INF = 0x3f3f3f3f3f3f3f3f;
template<typename T>
using ordered_set=tree<T, null_type, less<T>, rb_tree_tag,tree_order_statistics_node_update>;

auto seed = chrono::high_resolution_clock::now().time_since_epoch().count();
std::mt19937 rng(seed);

double startTime;
double getCurrentTime() {
    return ((double)clock() - startTime) / CLOCKS_PER_SEC;
}
const int dx[] = { -1, 0, 1, 0 };
const int dy[] = { 0, 1, 0, -1 };


const int N=200001;

void solve()
{
    string s;
    cin>>s;
    if(s.length()<6)
    {
        cout<<"No"<endl;
        return;
    }
    if(s[2]==s[3]&&s[4]==s[5])
    {
        cout<<"Yes"<<endl;
    }
    else
        cout<<"No"<<endl;
    
}



int32_t main()
{
    IOS;
    //FILE *fin = freopen("in","r",stdin);
    //FILE *fout = freopen("out","w",stdout);
    int t;
    t=1;
   // cin>>t;
    
    while(t--)
    {
        solve();
    }
    return 0;
}


Compiler output:
a.cc: In function 'void solve()':
a.cc:68:19: error: no match for 'operator<' (operand types are 'std::basic_ostream<char>' and 'const char [2]')
   68 |         cout<<"No"<endl;
      |         ~~~~~~~~~~^
      |             |
      |             std::basic_ostream<char>
In file included from /usr/include/c++/14/regex:68,
                 from /usr/include/x86_64-linux-gnu/c++/14/bits/stdc++.h:181,
                 from a.cc:5:
/usr/include/c++/14/bits/regex.h:1143:5: note: candidate: 'template<class _BiIter> bool std::__cxx11::operator<(const sub_match<_BiIter>&, const sub_match<_BiIter>&)'
 1143 |     operator<(const sub_match<_BiIter>& __lhs, const sub_match<_BiIter>& __rhs)
      |     ^~~~~~~~
/usr/include/c++/14/bits/regex.h:1143:5: note:   template argument deduction/substitution failed:
a.cc:32:14: note:   'std::basic_ostream<char>' is not derived from 'const std::__cxx11::sub_match<_BiIter>'
   32 | #define endl "\n"
      |              ^~~~
a.cc:68:20: note: in expansion of macro 'endl'
   68 |         cout<<"No"<endl;
      |                    ^~~~
/usr/include/c++/14/bits/regex.h:1224:5: note: candidate: 'template<class _Bi_iter, class _Ch_traits, class _Ch_alloc> bool std::__cxx11::operator<(__sub_match_string<_Bi_iter, _Ch_traits, _Ch_alloc>&, const sub_match<_BiIter>&)'
 1224 |     operator<(const __sub_match_string<_Bi_iter, _Ch_traits, _Ch_alloc>& __lhs,
      |     ^~~~~~~~
/usr/include/c++/14/bits/regex.h:1224:5: note:   template argument deduction/substitution failed:
a.cc:32:14: note:   'std::basic_ostream<char>' is not derived from 'std::__cxx11::__sub_match_string<_Bi_iter, _Ch_traits, _Ch_alloc>'
   32 | #define endl "\n"
      |              ^~~~
a.cc:68:20: note: in expansion of macro 'endl'
   68 |         cout<<"No"<endl;
      |                    ^~~~
/usr/include/c++/14/bits/regex.h:1317:5: note: candidate: 'template<class _Bi_iter, class _Ch_traits, class _Ch_alloc> bool std::__cxx11::operator<(const sub_match<_BiIter>&, __sub_match_string<_Bi_iter, _Ch_traits, _Ch_alloc>&)'
 1317 |     operator<(const sub_match<_Bi_iter>& __lhs,
      |     ^~~~~~~~
/usr/include/c++/14/bits/regex.h:1317:5: note:   template argument deduction/substitution failed:
a.cc:32:14: note:   'std::basic_ostream<char>' is not derived from 'const std::__cxx11::sub_match<_BiIter>'
   32 | #define endl "\n"
      |              ^~~~
a.cc:68:20: note: in expansion of macro 'endl'
   68 |         cout<<"No"<endl;
      |                    ^~~~
/usr/include/c++/14/bits/regex.h:1391:5: note: candidate: 'template<class _Bi_iter> bool std::__cxx11::operator<(const typename std::iterator_traits<_Iter>::value_type*, const sub_match<_BiIter>&)'
 1391 |     operator<(typename iterator_traits<_Bi_iter>::value_type const* __lhs,
      |     ^~~~~~~~
/usr/include/c++/14/bits/regex.h:1391:5: note:   template argument deduction/substitution failed:
a.cc:32:14: note:   mismatched types 'const std::__cxx11::sub_match<_BiIter>' and 'const char [2]'
   32 | #define endl "\n"
      |              ^~~~
a.cc:68:20: note: in expansion of macro 'endl'
   68 |         cout<<"No"<endl;
      |                    ^~~~
/usr/include/c++/14/bits/regex.h:1485:5: note: candidate: 'template<class _Bi_iter> bool std::__cxx11::operator<(const sub_match<_BiIter>&, const typename std::iterator_traits<_Iter>::value_type*)'
 1485 |     operator<(const sub_match<_Bi_iter>& __lhs,
      |     ^~~~~~~~
/usr/include/c++/14/bits/regex.h:1485:5: note:   template argument deduction/substitution failed:
a.cc:32:14: note:   'std::basic_ostream<char>' is not derived from 'const std::__cxx11::sub_match<_BiIter>'
   32 | #define endl "\n"
      |              ^~~~
a.cc:68:20: note: in expansion of macro 'endl'
   68 |         cout<<"No"<endl;
      |                    ^~~~
/usr/include/c++/14/bits/regex.h:1560:5: note: candidate: 'template<class _Bi_iter> bool std::__cxx11::operator<(const typename std::iterator_traits<_Iter>::value_type&, const sub_match<_BiIter>&)'
 1560 |     operator<(typename iterator_traits<_Bi_iter>::value_type const& __lhs,
      |     ^~~~~~~~
/usr/include/c++/14/bits/regex.h:1560:5: note:   template argument deduction/substitution failed:
a.cc:32:14: note:   mismatched types 'const std::__cxx11::sub_match<_BiIter>' and 'const char [2]'
   32 | #define endl "\n"
      |              ^~~~
a.cc:68:20: note: in expansion of macro 'endl'
   68 |         cout<<"No"<endl;
      |                    ^~~~
/usr/include/c++/14/bits/regex.h:1660:5: note: candidate: 'template<class _Bi_iter> bool std::__cxx11::operator<(const sub_match<_BiIter>&, const typename std::iterator_traits<_Iter>::value_type&)'
 1660 |     operator<(const sub_match<_Bi_iter>& __lhs,
      |     ^~~~~~~~
/usr/include/c++/14/bits/regex.h:1660:5: note:   template argument deduction/substitution failed:
a.cc:32:14: note:   'std::basic_ostream<char>' is not derived from 'const std::__cxx11::sub_match<_BiIter>'
   32 | #define endl "\n"
      |              ^~~~
a.cc:68:20: note: in expansion of macro 'endl'
   68 |         cout<<"No"<endl;
      |                    ^~~~
In file included from /usr/include/c++/14/bits/stl_algobase.h:64,
                 from /usr/include/c++/14/algorithm:60,
                 from /usr/include/x86_64-linux-gnu/c++/14/bits/stdc++.h:51:
/usr/include/c++/14/bits/stl_pair.h:1045:5: note: candidate: 'template<class _T1, class _T2> constexpr bool std::operator<(const pair<_T1, _T2>&, const pair<_T1, _T2>&)'
 1045 |     operator<(const pair<_T1, _T2>& __x, const pair<_T1, _T2>& __y)
      |     ^~~~~~~~
/usr/include/c++/14/bits/stl_pair.h:1045:5: note:   template argument deduction/substitution failed:
a.cc:32:14: note:   'std::basic_ostream<char>' is not derived from 'const std::pair<_T1, _T2>'
   32 | #define endl "\n"
      |              ^~~~
a.cc:68:20: note: in expansion of macro 'endl'
   68 |         cout<<"No"<endl;
      |                    ^~~~
In file included from /usr/include/c++/14/bits/stl_algobase.h:67:
/usr/include/c++/14/bits/stl_iterator.h:448:5: note: candidate: 'template<class _Iterator> constexpr bool std::operator<(const reverse_iterator<_Iterator>&, const reverse_iterator<_Iterator>&)'
  448 |     operator<(const reverse_iterator<_Iterator>& __x,
      |     ^~~~~~~~
/usr/include/c++/14/bits/stl_iterator.h:448:5: note:   template argument deduction/substitution failed:
a.cc:32:14: note:   'std::basic_ostream<char>' is not derived from 'const std::reverse_iterator<_Iterator>'
   32 | #define endl "\n"
      |              ^~~~
a.cc:68:20: note: in expansion of macro 'endl'
   68 |         cout<<"No"<endl;
      |                    ^~~~
/usr/include/c++/14/bits/stl_iterator.h:493:5: note: candidate: 'template<class _IteratorL, class _IteratorR> constexpr bool std::operator<(const reverse_iterator<_Iterator>&, const reverse_iterator<_IteratorR>&)'
  493 |     operator<(const reverse_iterator<_IteratorL>& __x,
      |     ^~~~~~~~
/usr/include/c++/14/bits/stl_iterator.h:493:5: note:   template argument deduction/substitution failed:
a.cc:32:14: note:   'std::basic_ostream<char>' is not derived from 'const std::reverse_iterator<_Iterator>'
   32 | #define endl "\n"
      |              ^~~~
a.cc:68:20: note: in expansion of macro 'endl'
   68 |         cout<<"No"<endl;
      |                    ^~~~
/usr/include/c++/14/bits/stl_iterator.h:1694:5: note: candidate: 'template<class _IteratorL, class _IteratorR> constexpr bool std::operator<(const move_iterator<_IteratorL>&, const move_iterator<_IteratorR>&)'
 1694 |     operator<(const move_iterator<_IteratorL>& __x,
      |     ^~~~~~~~
/usr/include/c++/14/bits/stl_iterator.h:1694:5: note:   template argument deduction/substitution failed:
a.cc:32:14: note:   'std::basic_ostream<char>' is not derived from 'const std::move_iterator<_IteratorL>'
   32 | #define endl "\n"
      |              ^~~~
a.cc:68:20: note: in expansion of macro 'endl'
   68 |         cout<<"No"<endl;
      |                    ^~~~
/usr/include/c++/14/bits/stl_iterator.h:1760:5: note: candidate: 'template<class _Iterator> constexpr bool std::operator<(const move_iterator<_IteratorL>&, const move_iterator<_IteratorL>&)'
 1760 |     operator<(const move_iterator<_Iterator>& __x,
      |     ^~~~~~~~
/usr/include/c++/14/bits/stl_iterator.h:1760:5: note:   template argument deduction/substitution failed:
a.cc:32:14: note:   'std::basic_ostream<char>' is not derived from 'const std::move_iterator<_IteratorL>'
   32 | #define endl "\n"
      |              ^~~~
a.cc:68:20: note: in expansion of macro 'endl'
   68 |         cout<<"No"<endl;
      |                    ^~~~
In file included from /usr/include/c++/14/bits/basic_string.h:47,
                 from /usr/include/c++/14/string:54,
                 from /usr/include/c++/14/bitset:52,
                 from /usr/include/x86_64-linux-gnu/c++/14/bits/stdc++.h:52:
/usr/include/c++/14/string_view:673:5: note: candidate: 'template<class _CharT, class _Traits> constexpr bool std::operator<(basic_string_view<_CharT, _Traits>, basic_string_view<_CharT, _Traits>)'
  673 |     operator< (basic_string_view<_CharT, _Traits> __x,
      |     ^~~~~~~~
/usr/include/c++/14/string_view:673:5: note:   template argument deduction/substitution failed:
a.cc:32:14: note:   'std::basic_ostream<char>' is not derived from 'std::basic_string_view<_CharT, _Traits>'
   32 | #define endl "\n"
      |              ^~~~
a.cc:68:20: note: in expansion of macro 'endl'
   68 |         cout<<"No"<endl;
      |                    ^~~~
/usr/include/c++/14/string_view:680:5: note: candidate: 'template<class _CharT, class _Traits> constexpr bool std::operator<(basic_string_view<_CharT, _Traits>, __type_identity_t<basic_string_view<_CharT, _Traits> >)'
  680 |     operator< (basic_string_view<_CharT, _Traits> __x,
      |     ^~~~~~~~
/usr/include/c++/14/string_view:680:5: note:   template argument deduction/substitution failed:
a.cc:32:14: note:   'std::basic_ostream<char>' is not derived from 'std::basic_string_view<_CharT, _Traits>'
   32 | #define endl "\n"
      |              ^~~~
a.cc:68:20: note: in expansion of macro 'endl'
   68 |         cout<<"No"<endl;
      |                    ^~~~
/usr/include/c++/14/string_vie