fork(1) download
copy 
  1. #include <iostream>
  2. #include <algorithm>
  3. #include <iterator>
  4. #include <vector>
  5. using namespace std;
  6.  
  7. int main() {
  8. 	size_t n = 10; 
  9.  
  10.     // Best would be to use vectors. These are variable sized and dynamic
  11. 	vector<int> varray(n); 
  12. 	cout<<varray.size()<<endl; 
  13.  
  14. 	// But if you need raw arrays you can still go for:  
  15. 	int *array = new int[n];
  16. 	for (int i=0; i<n; i++)   // just filling some data 
  17. 	    varray[i]=array[i]=i*7; 
  18.  
  19. 	// here the solution with raw array 
  20. 	int last[5]; 
  21. 	copy(array+n-5, array+n, last);   // array version
  22.     copy(last, last+5, ostream_iterator<int>(cout," "));   // display result in one line 
  23.     cout<<endl; 
  24.  
  25.     // here the solution with vectors
  26.     vector<int> vlast(5);
  27. 	copy(varray.end()-vlast.size(), varray.end(), vlast.begin()); 
  28.  
  29.     copy(vlast.begin(), vlast.end(), ostream_iterator<int>(cout," ")); // display
  30.     cout<<endl; 
  31. 	return 0;
  32. }
Success #stdin #stdout 0s 15240KB
comments (?)
stdin
copy 
Standard input is empty
stdout
copy 
10
35 42 49 56 63 
35 42 49 56 63
https://ideone.com/2Zejb8
language:
C++14 (gcc 8.3)
created:
6 years ago
visibility:
public

Share or Embed source code

Discover > Sphere Engine API

The brand new service which powers Ideone!

Discover > IDE Widget

Widget for compiling and running the source code in a web browser!