Array - 49: Reverse array elements | Using new array | Using Swapping elements | Using Library Func
Source Code:https://thecodingsimplified.com/rever...
Solution - 1: Using new array
We take a new array with size equal to given array
Now start iterating the element & keep on pushing from last in new array
Time Complexity: O(n), where n is number of values in array
Space Complexity: O(n)
Solution - 2: Using swapping
We take two variable start = 0 & end = n - 1
We swap the element present at start & end, increase the start++ & decrease the end--
we do this until start is less than end
Time Complexity: O(n), where n is number of values in array
Space Complexity: O(1)
Solution - 3: Using Library funtion
We do Collections.reverse(Arrays.asList(arr))
So basically we need to convert array to in list form & then reverse it
One point to note it take Object, so rather than premitive array, take Object Integer array
For more info, please see the video.
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