Function smallestDifference

Python/SmallestDifference.py:41–62

(arr1 : list, arr2 : list)

"""

def smallestDifference(arr1 : list, arr2 : list) : 
    arr1.sort();arr2.sort()
    i = 0;j = 0

    smallest = float("inf");current=float("inf")
    smallestPair = list()
    
    while i < len(arr1) and j < len(arr2) : 
        fnum = arr1[i];snum = arr2[j]
        
        if fnum < snum : 
            current = snum - fnum
            i += 1
        elif snum < fnum : 
            current = snum - fnum
            j += 1
        else : 
            return [fnum, snum]

        if current < smallest : 
            smallest = current
            smallestPair.append((fnum, snum))