Lists

def reverse(list):
#@param:
#   list: list;
#   return: list;
    lenght = len(list) -1
    for i in range(0,lenght):
        item1 = list[i]
        item2 = list[lenght-i]
        list[i] = item2
        list[lenght-i] = item1
    return list
#-------------------------------------------------------------------------------
def count(list,find):
#@param:
#   list: list;
#   find: any;
#   return: int;
    count = 0
    for i in list:
        if find == i:
            count = count+1
    return count
#-------------------------------------------------------------------------------
def insert(L,n1,n2):
#@param:
#   L: list of int;
#   n1, n2: int;
    list = []
    for i in range(0,len(L)):
        if L[i] == n1:
            list.append(L[i])
            list.append(n2)
        else:
            list.append(L[i])
    return list
#-------------------------------------------------------------------------------