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  1. #include <iostream>
  2.  
  3. using namespace std;
  4.  
  5. //non-recursive
  6. void diff(int items[], int count)
  7. {
  8.     if (count > 0)
  9.     {
  10.         do
  11.         {
  12.             for (int n=0; n<count; n++)
  13.             {
  14.                 cout << items[n] << " ";
  15.                 items[n]=abs(items[n]-items[n+1]);
  16.             }
  17.             cout << "\n";
  18.         }
  19.         while (--count > 0);
  20.     }
  21. }
  22.  
  23. //recursive
  24. void diff1(int items[], int count)
  25. {
  26.     if (count > 0)
  27.     {
  28.         for (int n=0; n<count; n++)
  29.         {
  30.             cout << items[n] << " ";
  31.             items[n]=abs(items[n]-items[n+1]);
  32.         }
  33.  
  34.         cout << "\n";
  35.         diff1(items, --count);
  36.     }
  37. }
  38.  
  39. int main()
  40. {
  41.     int user_input[]={1,5, 13, 16, 17};
  42.  
  43.     diff(user_input, 5);
  44.  
  45.     return 0;
  46. }
  47.  
Success #stdin #stdout 0s 3340KB
comments (?)
stdin
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Standard input is empty
stdout
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1 5 13 16 17 
4 8 3 1 
4 5 2 
1 3 
2
https://ideone.com/QQBx09
language:
C++14 (gcc 8.3)
created:
11 years ago
visibility:
public

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