+ 1

How to swap the adjacent elements in a 1D array?

if 6 elements are there of an array a[i] and; a[0]=0 a[1]=1 . . . a[5]=5 so I want to swap the elements of array and print it like 1,0,3,2,5,4 (the entry was: 0,1,2,3,4,5)

21st Dec 2016, 1:33 PM
Devang Shukla
Devang Shukla - avatar
1 Answer
+ 4
Use this : #include <algorithm> It has a function that allows you to swap to values/elements . After you include that, you can try this in your main statement : int arr[]={1, 2}; cout<<arr[0]<<" "<<arr[1]<<endl; swap(arr[0], arr[1]); cout<<arr[0]<<" "<<arr[1]; You will see the result. Basically the function is provides is this : swap(a,b); What is does is, it will swap the values of a and b.
21st Dec 2016, 1:49 PM
Wen Qin
Wen Qin - avatar