count - c++ linked list counting letters -

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c++ linked list counting numbers

struct letternode {

char letter; size_t frequency; letternode* next;  letternode(char ch, size_t frq, letternode* ptr) { letter = ch; frequency = frq; next = ptr; }  const string tostring() { return ("letter " + to_string(this->letter) + " occured: " + to_string(this->frequency)+" times."); }

}; c++ linked list counting numbers

what 2 functions marked do?

letternode(char ch, size_t frq, letternode* ptr) set letternode object, method (function) called constructor.

const string tostring() returning string information letternode object can't sure don't know to_string doing.

another question size_t frequency in letternode struct increase , shows how many of them in string?

frequency not increasing in code provided set when letternode creating new object in void insert(char ltr, size_t frq)

i sorry answer not solved problems feel free add important information code main function.


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