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# BubbleSort + Call by Ref + Call by Val CS311

Syndragonic Aug 25th, 2019 66 Never
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1. #include <iostream>
2. using namespace std;
3. void swapnumbers (int &, int &);
4. void bubblesort (int arr[], int n)
5. {
6.     int i, j;
7.         for(i=n-1; i>0; i--)
8.             {
9.             for (j=0; j<i;j++)
10.                 {
11.                 if (arr[j] > arr[j+1])
12.                     {
13.                         int temp= arr[j+1];
14.                         arr[j+1]=arr[j];
15.                         arr[j]=temp;
16.                     }
17.                 }
18.             }
19. }
20. void swapnumbers (int &A, int &B)
21. {
22.   int temp = B;
23.    B = A;
24.    A = temp;
25. }
26. void swapval (int x, int y)
27. {
28.    int temp = y;
29.    y = x;
30.    x = temp;
31.
32.    return;
33. }
34.
35. int main()
36. {
37.     cout<<"Bubble Sort\n";
38.     int array[20]= {1,2,5,6,3,7,6,8,9,3,6,4,7,3,7,5,4,8,5,9};
39.     int size = 20;
40.      bubblesort(array, size);
41.      for (int i = 0; i<20; i++)
42.         {
43.             cout<<array[i]<<" ";
44.         }
45.     cout<<"\n";
46.     cout<<"\n";
47.     cout<<"Call by Reference to Swap to Values\n";
48.     int a = 10;
49.     int b = 5;
50.     cout<<"Before Swap "<<a<<" "<<b;
51.     cout<<"\n";
52.     swapnumbers (a,b);
53.     cout<<"After Swap "<<a<<" "<<b;
54.     cout<<"\n";
55.      cout<<"\n";
56.     cout<<"Call by Value to Swap but not actually Swap\n";
57.      int x = 20;
58.     int y = 10;
59.     cout<<"Before Swap "<<x<<" "<<y;
60.     cout<<"\n";
61.     swapnumbers (a,b);
62.     cout<<"After Swap "<<x<<" "<<y;
63.     cout<<"\n";
64.     cout<<"\n";
65.
66.     return 0;
67. }
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