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  1. #include <iostream>
  2. #include <queue>
  3. #include <stack>
  4. #include <cctype> // for tolower
  5. #include <string>
  6. using namespace std;
  7.  
  8. // -------------------------
  9. // Palindrome Checker Function
  10. // -------------------------
  11. void checkPalindrome(const string& input) {
  12.     // Reject input with spaces
  13.     if (input.find(' ') != string::npos) {
  14.         cout << "Please enter only one word without spaces.\n";
  15.         return;
  16.     }
  17.  
  18.     stack<char> s;
  19.     queue<char> q;
  20.  
  21.     // Insert characters into stack and queue
  22.     for (char c : input) {
  23.         char lower = tolower(c); // تحويل الحرف إلى صغير
  24.         s.push(lower);
  25.         q.push(lower);
  26.     }
  27.  
  28.     bool isPalindrome = true;
  29.     while (!s.empty()) {
  30.         if (s.top() != q.front()) {
  31.             isPalindrome = false;
  32.             break;  // إذا حدث اختلاف، لا داعي لاستكمال المقارنة
  33.         }
  34.         s.pop();
  35.         q.pop();
  36.     }
  37.  
  38.     if (isPalindrome)
  39.         cout << "Palindrome\n";
  40.     else
  41.         cout << "Not palindrome\n";
  42. }
  43.  
  44. // -------------------------
  45. // Main
  46. // -------------------------
  47. int main() {
  48.     string word;
  49.     cout << "\nEnter a word to check if it's a palindrome: ";
  50.     cin.ignore(); // مهم علشان نتفادى مشكلة getline بعد cin
  51.     getline(cin, word);
  52.  
  53.     checkPalindrome(word);
  54.  
  55.     return 0;
  56. }
  57.  
Success #stdin #stdout 0s 5280KB
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Enter a word to check if it's a palindrome: Not palindrome
https://ideone.com/ReL3qB
language:
C++ (gcc 8.3)
created:
10 days ago
visibility:
public

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