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  1. #include <iostream>
  2. #include <string>
  3. using namespace std;
  4.  
  5. void createFrq(int frq[], string word) {
  6.     for (int i = 0; i < (int)word.size(); ++i) {
  7.         if (word[i] >= 'A' && word[i] <= 'Z') {
  8.             word[i] += 32;
  9.         }
  10.         ++frq[word[i]];
  11.     }
  12. }
  13.  
  14. bool isValid(int frq[]) {
  15.     int cnt = 0;
  16.     for (int i = 'a'; i <= 'z'; ++i) {
  17.         if (frq[i] > 0) {
  18.             ++cnt;
  19.         }
  20.     }
  21.     return cnt <= 2;
  22. }
  23.  
  24. int main() {
  25.     string text;
  26.     int cntValid = 0;
  27.     while (getline(cin, text)) {
  28.         string currWord = "";
  29.         for (int i = 0; i <= (int)text.size(); ++i) {
  30.             if (isalpha(text[i])) {
  31.                 currWord += text[i];
  32.             } else if (!currWord.empty()) {
  33.                 int frqWord['z' + 1] = {0};
  34.                 createFrq(frqWord, currWord);
  35.                 if (isValid(frqWord)) {
  36.                     ++cntValid;
  37.                 }
  38.                 currWord.clear();
  39.             }
  40.         }
  41.     }
  42.     cout << cntValid;
  43.     return 0;
  44. }
  45.  
Success #stdin #stdout 0.01s 5312KB
comments (?)
stdin
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Abc.Aaa.BbCc
123rgH,i-HZZ
stdout
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4
https://ideone.com/wXbMJ0
language:
C++ (gcc 8.3)
created:
6 hours ago
visibility:
public

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