#include "stdlib.h"
#include "iostream.h"
#include "windows.h"

int rozmiar_kat(char katalog) {
int filesize = 0;
WIN32_FIND_DATA fd;
HANDLE hPlik;

hPlik = FindFirstFile("katalog\\*", &fd);
	if(hPlik == INVALID_HANDLE_VALUE) {
	cout << "Nie mozna znalesc katalogu " << katalog << endl;
	}
	else {
         if(fd.dwFileAttributes & FILE_ATTRIBUTE_DIRECTORY) {
              if(strcmp(fd.cFileName, ".") != 0 && strcmp(fd.cFileName, "..") != 0) {
                   while(FindNextFile(hPlik, &fd)) {
                   strcat(katalog, "\\fd.cFilename\\*");
                   filesize += rozmiar_kat(katalog); 
                   }
              }
         }
         else {
         filesize += fd.nFileSizeLow;
         }
	}

return filesize;
}

int main() {
cout << rozmiar_kat("C:\\share") << endl;
system("pause");
}