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  1. #include <iostream>
  2. #include <cstring>
  3. using namespace std;
  4.  
  5. const int MAX_SIZE = 2000;
  6.  
  7. bool isLetter(char c) {
  8. 	return ('A' <= c && c <= 'Z') || ('a' <= c && c <= 'z');
  9. }
  10.  
  11. void changeLetter(char text[], const int firstPos, const int numOfWords, const int numOfLetters) {
  12.     if (numOfWords <= numOfLetters) {
  13.         text[firstPos + numOfWords - 1] = 'a';
  14.     } else {
  15.         text[firstPos] = 'a'; 
  16.     }
  17. }
  18.  
  19. void modifyText(char text[], int &numOfWords) {
  20.     int firstPos = 0, numOfLetters = 0, textLength = strlen(text);
  21.     bool prevLetter = false;
  22.     for (int i = 0; i <= textLength; ++i) {
  23.         if (isLetter(text[i])) {
  24.             ++numOfLetters;
  25.             if (prevLetter == false) {
  26.             	++numOfWords;
  27.                 firstPos = i;
  28.             }
  29.             prevLetter = true;
  30.         } else if (prevLetter) {
  31.             changeLetter(text, firstPos, numOfWords, numOfLetters);
  32.             numOfLetters = 0;
  33.             prevLetter = false;
  34.         }
  35.     }
  36. }
  37.  
  38. int main() {
  39.     char text[MAX_SIZE + 1];
  40.     int numOfWords = 0;
  41.     while (cin.getline(text, MAX_SIZE + 1)) {
  42.         modifyText(text, numOfWords);
  43.         cout << text << '\n';
  44.     }
  45.     return 0;
  46. }
Success #stdin #stdout 0s 5328KB
comments (?)
stdin
copy 
B b b b b b
C c c c c
stdout
copy 
a a a a a a
a a a a a
https://ideone.com/bd5LPJ
language:
C++ (gcc 8.3)
created:
10 hours ago
visibility:
public

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