Question

In the Python:

Note 1: You may not use these python built-in functions:

sorted(), min(), max(), sum(), pow(), zip(), map(), append(), count() and counter().

(7 points) unique.py: A number in a list is unique if it appears only once. Given a list of

random numbers, print the unique numbers and their count. Print the duplicate numbers and

their count.

Sample runs:

Enter the size of the list : 7

[8, 2, 6, 5, 2, 4, 5]

There are 3 unique numbers: 8 6 4

There are 2 duplicate numbers: 2 5

Sample run:

Enter the size of the list : 7

[2, 2, 4, 3, 3, 3, 4]

There are 0 unique numbers:

There are 3 duplicate numbers: 2 3 4

Answer 1

CODE

n = int(input("Enter the size of the list : "))

dict = {}

for i in range(n):

el = int(input("Enter the element " + str(i+1) + " : "))

if el in dict:

dict[el] = dict[el] + 1;

else:

dict[el] = 1

unique = 0

duplicate = 0

uniqueNumbers = ""

duplicateNumbers = ""

for key in dict:

if (dict[key] == 1):

unique += 1

uniqueNumbers += str(key) + " "

elif dict[key] > 1:

duplicate += 1

duplicateNumbers += str(key) + " "

print("There are %d unique numbers: %s" %(unique, uniqueNumbers))

print("There are %d duplicate numbers: %s" %(duplicate, duplicateNumbers))