An array holds only zeros and ones, and it is sorted. All zeros come first, then all ones. Write a function countOnes(bits) that returns how many ones the array has.
countOnes([0, 0, 1, 1, 1])Returns 3
countOnes([0, 0, 0])Returns 0
countOnes([1, 1])Returns 2
Asked at Sprinklr · Source
countOnes([ 0, 0, 1, 1, 1 ])3countOnes([ 0, 0, 0 ])0countOnes([ 1, 1 ])2Hidden tests run on Submit.