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  1. #include <iostream>
  2. using namespace std;
  3.  
  4. int arr[20];
  5. int n;
  6.  
  7. void input() {
  8.  
  9.     while(true)
  10.     {
  11.  
  12.         cout << "Input Maximum Length = ";
  13.         cin >> n;
  14.  
  15.         if (n <= 20) {
  16.         break;
  17.         } else {
  18.         cout << "n is bigger than 20";
  19.         }
  20.  
  21.     }
  22.  
  23.     cout << endl;
  24.     cout << "=======================" << endl;
  25.     cout << "Enter Elements of Array" << endl;
  26.     cout << "=======================" << endl;
  27.  
  28.     for(int i = 0; i < n; i++) {
  29.         cout << "Data - " << i+1 << " : ";
  30.         cin >> arr[i];
  31.         cout << endl;
  32.     }
  33.  
  34. }
  35.  
  36. void display() {
  37.     cout << endl;
  38.     cout << "============" << endl;
  39.     cout << "Sorted Array" << endl;
  40.     cout << "============" << endl;
  41.  
  42.     for(int i =0; i < n; i++) {
  43.         cout << "Data " << i+1 << " : " << arr[i] << endl;
  44.     }
  45. }
  46.  
  47.  
  48. void bubbleSortAlgorithm() {
  49.     // set pass = 1
  50.     int pass = 1;
  51.     //pass <= n-1, go to step 2
  52.     do {
  53.     // reapeat step 3 selama J from 0 to n-1 pass
  54.     for ( int j = 0 ; j <= n-1 -pass; pass < j++)
  55.     {
  56.         //if the element at index j is greater than the
  57.         //j + 1, swap the two elements
  58.         if(arr[j] > arr[j + 1]) {
  59.             int tmp;
  60.             tmp = arr[j];
  61.             arr[j] = arr[j + 1];
  62.             arr[j + 1] = tmp;
  63.         }
  64.     }
  65.     //increment pass by 1
  66.     pass = pass + 1;
  67.   }  while (pass <= n-1); //atau pass < n
  68.  
  69. }
  70.  
  71. int main() {
  72.  
  73.     input();
  74.     bubbleSortAlgorithm();
  75.     display();
  76.  
  77. }
Success #stdin #stdout 0.01s 5276KB
comments (?)
stdin
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5
4 2 7 9 2
stdout
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Input Maximum Length = 
=======================
Enter Elements of Array
=======================
Data - 1 : 
Data - 2 : 
Data - 3 : 
Data - 4 : 
Data - 5 : 

============
Sorted Array
============
Data 1 : 2
Data 2 : 2
Data 3 : 4
Data 4 : 7
Data 5 : 9
https://ideone.com/JsZzuH
language:
C++14 (gcc 8.3)
created:
5 days ago
visibility:
public

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