I have got two different results which are conflicted with each other.
if the k means that we will rotate the nums[0,k],then this may be wrong
Input: [1,2],0 Output: [2,1] Expected: [1,2]
if the k means that we will totate totally k elements of the array from the begining,then this may be wrong
Input: [1,2,3],1 Output:[2,3,1] Expected:[3,1,2]
So what does the k actually mean?
here is my two different pieces of code according to the two meanings of k: