C + + calculates the number of occurrences per character _c language

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#include <iostream>//#include <cstdlib> #include <ctime> using namespace std;
const int number_of_letters = 26;
const int number_of_random_letters = 100;
void Createarray (char []);
void Displayarray (const char []);
void Countletters (const char [], int []);
 
void displaycounts (const int []);
  int main () {char chars[number_of_random_letters];
  Createarray (chars);
  cout << "The lowercase letters are:" << Endl;
  Displayarray (chars);
  int counts[number_of_letters];
  Countletters (chars, counts);
  cout << "\nthe occurrences of each letter are:" << Endl;
 
  Displaycounts (counts);
return 0;
  } void Createarray (char chars[]) {srand ((unsigned int) time (0));  for (int i = 0; i < number_of_random_letters i++) {Chars[i] = static_cast<char> (' A ' + rand ()% (' Z '-' a ')
  + 1)); } void Displayarray (const char chars[]) {for (int i = 0; i < number_of_random_letters; i++) {if ((i + 1) % = = 0) cout &LT;&LT
    Chars[i] << "" << Endl;
  else cout << Chars[i] << "";  } void Countletters (const char chars[], int counts[]) {for (int i = 0; i < number_of_letters; i++) Counts[i]
  = 0; for (int i = 0; i < number_of_random_letters i++) Counts[chars[i]-' a ']++; Classic} void displaycounts (const int counts[]) {for (int i = 0; i < number_of_letters; i++) {if ((i + 1)% 1
    0 = 0) cout << counts[i] << "" << static_cast<char> (i + ' a ') << Endl;
  else cout << Counts[i] << "" << static_cast<char> (i + ' a ') << "";
} cout << Endl;

 }

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