1.cpp

using namespace std;
#include "iostream"
#include <fstream>
#include <map>

class CStringComparator
{
public:

	/*
		A < B --> true
	*/
	bool operator()(const char* A, const char* B) const
	{
		while (true)
		{
			if (A[0] == B[0])
			{
				//A = B
				if (!A[0])
					return false;

				A++;
				B++;
			}
			else
			{
				return A[0] < B[0];
			}
		}
	}
};

void fix_f(char *buffer){
    for ( size_t i = 0; i < sizeof(buffer); i++){
        if (ispunct(buffer[i])) buffer[i] = '0';
        else if (isupper(buffer[i])) buffer[i] = tolower(buffer[i]);
    }
}




void process(char* buffer){
    map<const char*, size_t, CStringComparator> WMap;
    const char* Words[] = { "Who", "Are", "You", "Who" };
	const char* Word;

	for (size_t i = 0; i < sizeof(Words) / sizeof(Words[0]); i++)
	{
		Word = Words[i];
		auto It = WMap.find(Word);
		if (It == WMap.end())
		{
			WMap.insert(make_pair(Word, 1));
		}
		else
		{
			It->second++;
		}
    }
    fix_f(buffer);
    printf(buffer);
    for (auto Entry : WMap){
        
        printf("Word %s, count %d\n", Entry.first, (int)Entry.second);
    }
    
}
int main(int argc, char** args){
    
    ifstream file("wp.txt", ios::binary | ios::ate);
    streamsize size = file.tellg();
    file.seekg(0, ios::beg);
    char* buffer = new char[size+1];
    buffer[size] = 0;
    if (file.read(buffer, size)){
        process(buffer);
        printf("File read, %d\r\n", (int)size);
    }
    else{
        printf("err");
    }
    delete[]buffer;
    printf("Hello\r\n");
    return 1;

    
}