Create a dictionary of 20 random values in the range 1–99. Determine whether there are any duplicate values in the dictionary. Hint: you many want to sort the list first.

Question

What will be an ideal response?

Answer 1

```
# Determining and display duplicate values
# in a randomly generated dictionary.

import random

aDictionary = {}
duplicates = 0 # true if the dictionary contains duplicates

# randomly generate 20 dictionary values
for i in range( 0, 20 ):
aDictionary[ i ] = random.randrange( 1, 100 )

# obtain and display list of sorted dictionary values
valuesList = aDictionary.values()
valuesList.sort()
print "The dictionary values are:", valuesList

print

# loop through the value list
for i in range( len( valuesList ) - 1 ):

if valuesList[ i ] == valuesList[ i + 1 ]:
duplicates = 1
break

if duplicates:
print "There are duplicate values in the dictionary."
else:
print "There are no duplicate values in the dictionary."
```
The dictionary values are: [4, 12, 16, 17, 26, 30, 38, 43, 53, 53, 69,
69, 71, 76, 80, 82, 82, 84, 87, 88]
There are duplicate values in the dictionary.
The dictionary values are: [4, 8, 9, 14, 15, 20, 32, 33, 34, 35, 38,
41, 42, 49, 50, 59, 66, 77, 88, 89]
There are no duplicate values in the dictionary.