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  1. #include <iostream>
  2. #include <string>
  3. using namespace std;
  4.  
  5. bool isValid(int frq[], string word) {
  6.     for (int i = 0; i <= 'z'; ++i) {
  7.         frq[i] = 0;
  8.     }
  9.     for (int i = 0; i < word.size(); ++i) {
  10.         ++frq[word[i]];
  11.         if (frq[word[i]] > 1) {
  12.             return false;
  13.         }
  14.     }
  15.     return true;
  16. }
  17.  
  18.  
  19. int main() {
  20.     string text;
  21.     string maxWord = "";
  22.     while (getline(cin, text)) {
  23.         int len = (int)text.size();
  24.         string currWord = "";
  25.         for (int i = 0; i <= len; ++i) {
  26.             if (isalpha(text[i])) {
  27.                 currWord += text[i];
  28.             } else if (!currWord.empty()) {
  29.                 int frq['z' + 1] = {0};
  30.                 int index = 0;
  31.                 string currMax = "";
  32.                 while (frq[currWord[index]] == 0) {
  33.                     ++frq[currWord[index]];
  34.                     if (frq[currWord[index]] == 1) {
  35.                         currMax += currMax[index];
  36.                     }
  37.                     ++index;
  38.                 }
  39.                 i += (index - 1);
  40.                 if (currMax.size() > maxWord.size() || (currMax.size() == maxWord.size() && currMax < maxWord)) {
  41.                     maxWord = currMax;
  42.                 }
  43.                 currWord.clear();
  44.             }
  45.         }
  46.         for (int k = 0; k < maxWord.size(); ++k) {
  47.         	cout << maxWord[k];
  48.         }
  49.     }
  50.     return 0;
  51. }
  52.  
Success #stdin #stdout 0.01s 5296KB
comments (?)
stdin
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Aabcadefg…abcd
!xyzd!!! xyxzd
stdout
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language:

						
C++ (gcc 8.3)

					

					

						
created:
								
						
14 days ago

					

					

						
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