Language: C++

#include <iostream>
#include <vector>
#include <map>
#include <string>
using namespace std;

int N,Q;
string s;
vector<int> counter;
map<char, vector<int>> indexes;
int main(){
  cin >> N >> Q;
  cin >> s;
  char mass[N] = s.c_char();
  counter.resize(N,1);
  
  for(int i=0; i<N; i++){
    indexes[mass[i]].insert(0,i);
  }
  
  for(int i=0; i<Q; i++){
    char t,d;
    cin >> t >> d;
    if(indexes.find(t) != indexes.end()){
      for(int j=0; j < indexes[t].size(); j++){
        int index = indexes[t][j];

        if(d == "R" && index != N - 1){
		  counter[index + 1] += counter[index];  
        }else if(d == "L" && index != 0){
          counter[index - 1] += counter[index];
        }
        counter[index] = 0;
      }
    }
  }
  int count = 0;
  for(int i=0; i<N; i+;){
    count += counter[i];
  }
  cout << count << endl;
}


Compiler output:
a.cc: In function 'int main()':
a.cc:14:20: error: 'std::string' {aka 'class std::__cxx11::basic_string<char>'} has no member named 'c_char'
   14 |   char mass[N] = s.c_char();
      |                    ^~~~~~
a.cc:18:28: error: no matching function for call to 'std::vector<int>::insert(int, int&)'
   18 |     indexes[mass[i]].insert(0,i);
      |     ~~~~~~~~~~~~~~~~~~~~~~~^~~~~
In file included from /usr/include/c++/14/vector:66,
                 from a.cc:2:
/usr/include/c++/14/bits/stl_vector.h:1484:9: note: candidate: 'template<class _InputIterator, class> std::vector<_Tp, _Alloc>::iterator std::vector<_Tp, _Alloc>::insert(const_iterator, _InputIterator, _InputIterator) [with <template-parameter-2-2> = _InputIterator; _Tp = int; _Alloc = std::allocator<int>]'
 1484 |         insert(const_iterator __position, _InputIterator __first,
      |         ^~~~~~
/usr/include/c++/14/bits/stl_vector.h:1484:9: note:   candidate expects 3 arguments, 2 provided
In file included from /usr/include/c++/14/vector:72:
/usr/include/c++/14/bits/vector.tcc:133:5: note: candidate: 'std::vector<_Tp, _Alloc>::iterator std::vector<_Tp, _Alloc>::insert(const_iterator, const value_type&) [with _Tp = int; _Alloc = std::allocator<int>; iterator = std::vector<int>::iterator; const_iterator = std::vector<int>::const_iterator; value_type = int]'
  133 |     vector<_Tp, _Alloc>::
      |     ^~~~~~~~~~~~~~~~~~~
/usr/include/c++/14/bits/vector.tcc:135:27: note:   no known conversion for argument 1 from 'int' to 'std::vector<int>::const_iterator'
  135 |     insert(const_iterator __position, const value_type& __x)
      |            ~~~~~~~~~~~~~~~^~~~~~~~~~
/usr/include/c++/14/bits/stl_vector.h:1395:7: note: candidate: 'std::vector<_Tp, _Alloc>::iterator std::vector<_Tp, _Alloc>::insert(const_iterator, value_type&&) [with _Tp = int; _Alloc = std::allocator<int>; iterator = std::vector<int>::iterator; const_iterator = std::vector<int>::const_iterator; value_type = int]'
 1395 |       insert(const_iterator __position, value_type&& __x)
      |       ^~~~~~
/usr/include/c++/14/bits/stl_vector.h:1395:29: note:   no known conversion for argument 1 from 'int' to 'std::vector<int>::const_iterator'
 1395 |       insert(const_iterator __position, value_type&& __x)
      |              ~~~~~~~~~~~~~~~^~~~~~~~~~
/usr/include/c++/14/bits/stl_vector.h:1413:7: note: candidate: 'std::vector<_Tp, _Alloc>::iterator std::vector<_Tp, _Alloc>::insert(const_iterator, std::initializer_list<_Tp>) [with _Tp = int; _Alloc = std::allocator<int>; iterator = std::vector<int>::iterator; const_iterator = std::vector<int>::const_iterator]'
 1413 |       insert(const_iterator __position, initializer_list<value_type> __l)
      |       ^~~~~~
/usr/include/c++/14/bits/stl_vector.h:1413:29: note:   no known conversion for argument 1 from 'int' to 'std::vector<int>::const_iterator'
 1413 |       insert(const_iterator __position, initializer_list<value_type> __l)
      |              ~~~~~~~~~~~~~~~^~~~~~~~~~
/usr/include/c++/14/bits/stl_vector.h:1439:7: note: candidate: 'std::vector<_Tp, _Alloc>::iterator std::vector<_Tp, _Alloc>::insert(const_iterator, size_type, const value_type&) [with _Tp = int; _Alloc = std::allocator<int>; iterator = std::vector<int>::iterator; const_iterator = std::vector<int>::const_iterator; size_type = long unsigned int; value_type = int]'
 1439 |       insert(const_iterator __position, size_type __n, const value_type& __x)
      |       ^~~~~~
/usr/include/c++/14/bits/stl_vector.h:1439:7: note:   candidate expects 3 arguments, 2 provided
a.cc:28:14: error: ISO C++ forbids comparison between pointer and integer [-fpermissive]
   28 |         if(d == "R" && index != N - 1){
      |            ~~^~~~~~
a.cc:30:20: error: ISO C++ forbids comparison between pointer and integer [-fpermissive]
   30 |         }else if(d == "L" && index != 0){
      |                  ~~^~~~~~
a.cc:38:23: error: expected primary-expression before ';' token
   38 |   for(int i=0; i<N; i+;){
      |                       ^
a.cc:38:23: error: expected ')' before ';' token
   38 |   for(int i=0; i<N; i+;){
      |      ~                ^
      |                       )
a.cc:38:24: error: expected primary-expression before ')' token
   38 |   for(int i=0; i<N; i+;){
      |                        ^