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  1. #include <iostream>
  2. #include <cstring> // Pentru strlen
  3.  
  4. using namespace std;
  5.  
  6. void lowerCase(char linie[]) {
  7.     for (int i = 0; linie[i] != '\0'; ++i) {
  8.         if (linie[i] >= 'A' && linie[i] <= 'Z') {
  9.             linie[i] = linie[i] + ('a' - 'A');
  10.         }
  11.     }
  12. }
  13.  
  14. char findMostFrequentLowercase(char text[]) {
  15.     int counts[26] = {0};
  16.     for (int i = 0; text[i] != '\0'; ++i) {
  17.         if (text[i] >= 'a' && text[i] <= 'z') {
  18.             counts[text[i] - 'a']++;
  19.         }
  20.     }
  21.  
  22.     char mostFrequentChar = 0;
  23.     int maxCount = 0;
  24.  
  25.     for (int i = 0; i < 26; ++i) {
  26.         if (counts[i] > maxCount) {
  27.             maxCount = counts[i];
  28.             mostFrequentChar = 'a' + i;
  29.         }
  30.     }
  31.  
  32.     return mostFrequentChar;
  33. }
  34.  
  35. int main() {
  36.     char linie[257]; // 256 caractere + terminator null
  37.     char allText[100000] = ""; // Presupunem un text total de maxim 100000 caractere
  38.     int allTextLength = 0;
  39.  
  40.     cout << "Introduceti textul (liniile se termina cu linie goala):\n";
  41.     while (cin.getline(linie, 257)) {
  42.         if (strlen(linie) == 0) {
  43.             break;
  44.         }
  45.         lowerCase(linie);
  46.         for (int i = 0; linie[i] != '\0'; ++i) {
  47.             allText[allTextLength++] = linie[i];
  48.         }
  49.     }
  50.     allText[allTextLength] = '\0'; // Adăugăm terminator null la textul total
  51.  
  52.     char mostFrequent = findMostFrequentLowercase(allText);
  53.  
  54.     if (mostFrequent) {
  55.         cout << "Litera mica cea mai frecventa este: " << mostFrequent << endl;
  56.     } else {
  57.         cout << "Nu au fost gasite litere mici." << endl;
  58.     }
  59.  
  60.     return 0;
  61. }
Success #stdin #stdout 0s 5280KB
comments (?)
stdin
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TEXT CU LITERE MARI
ALTA LINIE CU MAJUSCULE
SI INCA UNA
folosim getline(cin, line) în interiorul unei bucle while.
stdout
copy 
Introduceti textul (liniile se termina cu linie goala):
Litera mica cea mai frecventa este: i
https://ideone.com/UpHEJJ
language:
C++ (gcc 8.3)
created:
11 days ago
visibility:
public

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