Language: C++

#include <iostream>
#include <algorithm>
#include <queue>
#include <vector>
#include <set>
#include <cmath>
#include <string>
#include <map>
#define FOR(i,a,b) for(int i=a;i<b;i++)
#define ROF(i,a,b) for(int i=b-1;i>=a;i--)
#define FI first
#define SE second
#define MA(i,j) make_pair(i,j)
#define PA pair<int,int>
#define PB push_back
#define PQ priority_queue<int>
#define PGQ priority_queue<int,vector<int>,greater<int> >
#define VE vector<long long>
#define VP vector<PA>
#define YES(i) cout<<(i?"YES":"NO")<<endl
#define Yes(i) cout<<(i?"Yes":"No")<<endl
using namespace std;
//
int MOD=1e9+7;
int INF=1e9+7;
//
int main(){
  string S;
  cin>>S;
  int N=0,W=0,E=0,S=0;
  FOR(i,0,(int)S.size()){
    if(S[i]=='N'){
      N++;
    }else if(S[i]=='E'){
      E++;
    }else if(S[i]=='W'){
      W++;
    }else if(S[i]=='S'){
      S++;
    }
  }
  if(N==S&&E==W){
    Yes(1);
  }else{
    Yes(0);
  }
  return 0;
}


Compiler output:
a.cc: In function 'int main()':
a.cc:30:19: error: conflicting declaration 'int S'
   30 |   int N=0,W=0,E=0,S=0;
      |                   ^
a.cc:28:10: note: previous declaration as 'std::string S'
   28 |   string S;
      |          ^
a.cc:39:8: error: no 'operator++(int)' declared for postfix '++' [-fpermissive]
   39 |       S++;
      |       ~^~
a.cc:42:7: error: no match for 'operator==' (operand types are 'int' and 'std::string' {aka 'std::__cxx11::basic_string<char>'})
   42 |   if(N==S&&E==W){
      |      ~^~~
      |      |  |
      |      |  std::string {aka std::__cxx11::basic_string<char>}
      |      int
In file included from /usr/include/c++/14/iosfwd:42,
                 from /usr/include/c++/14/ios:40,
                 from /usr/include/c++/14/ostream:40,
                 from /usr/include/c++/14/iostream:41,
                 from a.cc:1:
/usr/include/c++/14/bits/postypes.h:192:5: note: candidate: 'template<class _StateT> bool std::operator==(const fpos<_StateT>&, const fpos<_StateT>&)'
  192 |     operator==(const fpos<_StateT>& __lhs, const fpos<_StateT>& __rhs)
      |     ^~~~~~~~
/usr/include/c++/14/bits/postypes.h:192:5: note:   template argument deduction/substitution failed:
a.cc:42:9: note:   mismatched types 'const std::fpos<_StateT>' and 'int'
   42 |   if(N==S&&E==W){
      |         ^
In file included from /usr/include/c++/14/string:43,
                 from /usr/include/c++/14/bits/locale_classes.h:40,
                 from /usr/include/c++/14/bits/ios_base.h:41,
                 from /usr/include/c++/14/ios:44:
/usr/include/c++/14/bits/allocator.h:235:5: note: candidate: 'template<class _T1, class _T2> bool std::operator==(const allocator<_CharT>&, const allocator<_T2>&)'
  235 |     operator==(const allocator<_T1>&, const allocator<_T2>&)
      |     ^~~~~~~~
/usr/include/c++/14/bits/allocator.h:235:5: note:   template argument deduction/substitution failed:
a.cc:42:9: note:   mismatched types 'const std::allocator<_CharT>' and 'int'
   42 |   if(N==S&&E==W){
      |         ^
In file included from /usr/include/c++/14/string:48:
/usr/include/c++/14/bits/stl_iterator.h:441:5: note: candidate: 'template<class _Iterator> constexpr bool std::operator==(const reverse_iterator<_Iterator>&, const reverse_iterator<_Iterator>&)'
  441 |     operator==(const reverse_iterator<_Iterator>& __x,
      |     ^~~~~~~~
/usr/include/c++/14/bits/stl_iterator.h:441:5: note:   template argument deduction/substitution failed:
a.cc:42:9: note:   mismatched types 'const std::reverse_iterator<_Iterator>' and 'int'
   42 |   if(N==S&&E==W){
      |         ^
/usr/include/c++/14/bits/stl_iterator.h:486:5: note: candidate: 'template<class _IteratorL, class _IteratorR> constexpr bool std::operator==(const reverse_iterator<_Iterator>&, const reverse_iterator<_IteratorR>&)'
  486 |     operator==(const reverse_iterator<_IteratorL>& __x,
      |     ^~~~~~~~
/usr/include/c++/14/bits/stl_iterator.h:486:5: note:   template argument deduction/substitution failed:
a.cc:42:9: note:   mismatched types 'const std::reverse_iterator<_Iterator>' and 'int'
   42 |   if(N==S&&E==W){
      |         ^
/usr/include/c++/14/bits/stl_iterator.h:1667:5: note: candidate: 'template<class _IteratorL, class _IteratorR> constexpr bool std::operator==(const move_iterator<_IteratorL>&, const move_iterator<_IteratorR>&)'
 1667 |     operator==(const move_iterator<_IteratorL>& __x,
      |     ^~~~~~~~
/usr/include/c++/14/bits/stl_iterator.h:1667:5: note:   template argument deduction/substitution failed:
a.cc:42:9: note:   mismatched types 'const std::move_iterator<_IteratorL>' and 'int'
   42 |   if(N==S&&E==W){
      |         ^
/usr/include/c++/14/bits/stl_iterator.h:1737:5: note: candidate: 'template<class _Iterator> constexpr bool std::operator==(const move_iterator<_IteratorL>&, const move_iterator<_IteratorL>&)'
 1737 |     operator==(const move_iterator<_Iterator>& __x,
      |     ^~~~~~~~
/usr/include/c++/14/bits/stl_iterator.h:1737:5: note:   template argument deduction/substitution failed:
a.cc:42:9: note:   mismatched types 'const std::move_iterator<_IteratorL>' and 'int'
   42 |   if(N==S&&E==W){
      |         ^
In file included from /usr/include/c++/14/bits/stl_algobase.h:64,
                 from /usr/include/c++/14/string:51:
/usr/include/c++/14/bits/stl_pair.h:1033:5: note: candidate: 'template<class _T1, class _T2> constexpr bool std::operator==(const pair<_T1, _T2>&, const pair<_T1, _T2>&)'
 1033 |     operator==(const pair<_T1, _T2>& __x, const pair<_T1, _T2>& __y)
      |     ^~~~~~~~
/usr/include/c++/14/bits/stl_pair.h:1033:5: note:   template argument deduction/substitution failed:
a.cc:42:9: note:   mismatched types 'const std::pair<_T1, _T2>' and 'int'
   42 |   if(N==S&&E==W){
      |         ^
In file included from /usr/include/c++/14/bits/basic_string.h:47,
                 from /usr/include/c++/14/string:54:
/usr/include/c++/14/string_view:629:5: note: candidate: 'template<class _CharT, class _Traits> constexpr bool std::operator==(basic_string_view<_CharT, _Traits>, __type_identity_t<basic_string_view<_CharT, _Traits> >)'
  629 |     operator==(basic_string_view<_CharT, _Traits> __x,
      |     ^~~~~~~~
/usr/include/c++/14/string_view:629:5: note:   template argument deduction/substitution failed:
a.cc:42:9: note:   mismatched types 'std::basic_string_view<_CharT, _Traits>' and 'int'
   42 |   if(N==S&&E==W){
      |         ^
/usr/include/c++/14/string_view:637:5: note: candidate: 'template<class _CharT, class _Traits> constexpr bool std::operator==(basic_string_view<_CharT, _Traits>, basic_string_view<_CharT, _Traits>)'
  637 |     operator==(basic_string_view<_CharT, _Traits> __x,
      |     ^~~~~~~~
/usr/include/c++/14/string_view:637:5: note:   template argument deduction/substitution failed:
a.cc:42:9: note:   mismatched types 'std::basic_string_view<_CharT, _Traits>' and 'int'
   42 |   if(N==S&&E==W){
      |         ^
/usr/include/c++/14/string_view:644:5: note: candidate: 'template<class _CharT, class _Traits> constexpr bool std::operator==(__type_identity_t<basic_string_view<_CharT, _Traits> >, basic_string_view<_CharT, _Traits>)'
  644 |     operator==(__type_identity_t<basic_string_view<_CharT, _Traits>> __x,
      |     ^~~~~~~~
/usr/include/c++/14/string_view:644:5: note:   template argument deduction/substitution failed:
a.cc:42:9: note:   'std::__cxx11::basic_string<char>' is not derived from 'std::basic_string_view<_CharT, _Traits>'
   42 |   if(N==S&&E==W){
      |         ^
/usr/include/c++/14/bits/basic_string.h:3755:5: note: candidate: 'template<class _CharT, class _Traits, class _Alloc> bool std::operator==(const __cxx11::basic_string<_CharT, _Traits, _Allocator>&, const __cxx11::basic_string<_CharT, _Traits, _Allocator>&)'
 3755 |     operator==(const basic_string<_CharT, _Traits, _Alloc>& __lhs,
      |     ^~~~~~~~
/usr/include/c++/14/bits/basic_string.h:3755:5: note:   template argument deduction/substitution failed:
a.cc:42:9: note:   mismatched types 'const std::__cxx11::basic_string<_CharT, _Traits, _Allocator>' and 'int'
   42 |   if(N==S&&E==W){
      |         ^
/usr/include/c++/14/bits/basic_string.h:3772:5: note: candidate: 'template<class _CharT, class _Traits, class _Alloc> bool std::operator==(const __cxx11::basic_string<_CharT, _Traits, _Allocator>&, const _CharT*)'
 3772 |     operator==(const basic_string<_CharT, _Traits, _Alloc>& __lhs,
      |     ^~~~~~~~
/usr/include/c++/14/bits/basic_string.h:3772:5: note:   template argument deduction/substitution failed:
a.cc:42:9: note:   mismatched types 'const std::__cxx11::basic_string<_CharT, _Traits, _Allocator>' and 'int'
   42 |   if(N==S&&E==W){
      |         ^
/usr/include/c++/14/bits/basic_string.h:3819:5: note: candidate: 'template<class _CharT, class _Traits, class _Alloc> bool std::operator==(const _CharT*, const __cxx11::basic_string<_CharT, _Traits, _Allocator>&)'
 3819 |     operator==(const _CharT* __lhs,
      |     ^~~~~~~~
/usr/include/c++/14/bits/basic_string.h:3819:5: note:   template argument deduction/substitution failed:
a.cc:42:9: note:   mismatched types 'const _CharT*' and 'int'
   42 |   if(N==S&&E==W){
      |         ^
In file included from /usr/include/c++/14/bits/memory_resource.h:47,
                 from /usr/include/c++/14/string:68:
/usr/include/c++/14/tuple:2558:5: note: candidate: 'template<class ... _TElements, class ... _UElements> constexpr bool std::operator==(const tuple<_UTypes ...>&, const tuple<_Elements ...>&)'
 2558 |     operator==(const tuple<_TElements...>& __t,
      |     ^~~~~~~~
/usr/include/c++/14/tuple:2558:5: note:   template argument deduction/substitution failed:
a.cc:42:9: note:   mismatched types 'const std::tuple<_UTypes ...>' and 'int'
   42 |   if(N==S&&E==W){
      |         ^
In file included from /usr/include/c++/14/bits/locale_facets.h:48,
                 from /usr/include/c++/14/bits/basic_ios.h:37,
                 from /usr/include/c++/14/ios:46:
/usr/include/c++/14/bits/streambuf_iterator.h:234:5: note: candidate: 'template<class _CharT, class _Traits> bool std::operator==(const istreambuf_iterator<_CharT, _Traits>&, const istreambuf_iterator<_CharT, _Traits>&)'
  234 |     operator==(const istreambuf_iterator<_CharT, _Traits>& __a,
      |     ^~~~~~~~
/usr/include/c++/14/bits/streambuf_iterator.h:234:5: note:   template argument deduction/substitution failed:
a.cc:42:9: note:   mismatched types 'const std::istreambuf_iterator<_CharT, _Traits>' and 'int'
   42 |   if(N==S&&E==W){
      |         ^
In file included from /usr/include/c++/14/deque:66,
                 from /usr/include/c++/14/queue:62,
                 from a.cc:3:
/usr/include/c++/14/bits/stl_deque.h:2294:5: note: candidate: 'template<class _Tp, class _Alloc> bool std::operator==(const deque<_Tp, _Alloc>&, const deque<_Tp, _Alloc>&)'
 2294 |     operator==(const deque<_Tp, _Alloc>& __x, const deque<_Tp, _Alloc>& __y)
      |     ^~~~~~~~
/usr/include/c++/14/bits/stl_deque.h:2294:5: note:   template argument deduction/substitution failed:
a.cc:42:9: note:   mismatched types 'const std::deque<_Tp, _Alloc>' and 'int'
   42 |   if(N==S&&E==W){
      |         ^
In file included from /usr/include/c++/14/vector:66