def maxinlist(list): max= list[0] for a in list: if a< max: pass elif a>max: max=a return a print(maxinlist([1,5,1,-5,3]))

def max_num_in_list( list ): max = list[ 0 ] for a in list: if a > max: max = a return max print(max_num_in_list([1,5,1,-5,3]))

Why does one work properly but the other doesn't

Please explain clearly. I did the one that doesn't work properly