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Find the Palindrome Numbers in a certain range.

Jan 27th, 2017
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C++ 1.32 KB | None | 0 0
  1. // Palindrome numbers in a certain range
  2.  
  3. #include <iostream>
  4. #include <string>
  5.  
  6. using namespace std;
  7.  
  8. int main() {
  9.    
  10.     int begin, end, counter = 0;
  11.    
  12.     cout << "\nBeginning point: "; cin >> begin;
  13.     cout << "\nEnding point: "; cin >> end;
  14.    
  15.     for (int i = begin; i <= end; i++) {
  16.        
  17.         string currNum = to_string(i);
  18.         int size = currNum.size();
  19.         bool checker = true;
  20.        
  21.         for (int j = 0; (j < size / 2) && checker ; j++) {
  22.            
  23.             if (currNum[j] != currNum[(size - 1) - j])
  24.                 checker = false;
  25.            
  26.         }
  27.        
  28.         // if (checker == false)
  29.             // cout << "\n" << i << " is not palindrome." << endl;
  30.            
  31.         if (checker == true) {
  32.            
  33.             cout << "\n" << i << " is palindrome." << endl;
  34.             counter++;
  35.            
  36.         }
  37.        
  38.     }
  39.    
  40.     cout << "\nTotal palindrome numbers in this range(" << begin << " - " << end << "): " << counter << endl;
  41.    
  42.     return 0;
  43.    
  44. }
  45.  
  46. // for java
  47. /*
  48. public void findPalindrome() {
  49.        
  50.         for (int i = begin; i <= end; i++) {
  51.            
  52.             boolean FLAG = true;
  53.             String currNum = Integer.toString(i);
  54.             int size = currNum.length();
  55.            
  56.             for (int j = 0; j < size / 2 && FLAG; j++) {
  57.                 if (currNum.charAt(j) != currNum.charAt(size - 1 - j))
  58.                     FLAG = false;
  59.                
  60.             }
  61.            
  62.             if (FLAG == true) {
  63.                 counter++;
  64.                 System.out.println("" + i + " is a palindrome number.");
  65.             }
  66.            
  67.         }
  68.        
  69. }
  70. */
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