Python | Generate random numbers within a given range and store in a list

Given lower and upper limits, generate a given count of random numbers within a given range, starting from ‘start’ to ‘end’ and store them in list.

Examples:

Input : num = 10, start = 20, end = 40
Output : [23, 20, 30, 33, 30, 36, 37, 27, 28, 38]
The output contains 10 random numbers in
range [20, 40].

Input : num = 5, start = 10, end = 15
Output : [15, 11, 15, 12, 11]
The output contains 5 random numbers in
range [10, 15].

Recommended: Please try your approach on {IDE} first, before moving on to the solution.

Python provides a random module to generate random numbers. To generate random numbers we have used the random function along with the use of the randint function.
Syntax:

randint(start, end)

randint accepts two parameters: a starting point and an ending point. Both should be integers and the first value should always be less than the second.

# Python code to generate 
# random numbers and 
# append them to a list 
import random 
  
# Function to generate 
# and append them  
# start = starting range, 
# end = ending range 
# num = number of  
# elements needs to be appended 
def Rand(start, end, num): 
    res = [] 
  
    for j in range(num): 
        res.append(random.randint(start, end)) 
  
    return res 
  
# Driver Code 
num = 10
start = 20
end = 40
print(Rand(start, end, num)) 

Output:

[23, 20, 30, 33, 30, 36, 37, 27, 28, 38]

My Personal Notes

Recommended Posts:

Chinmoy Lenka

Check out this Author's contributed articles.

If you like GeeksforGeeks and would like to contribute, you can also write an article using contribute.geeksforgeeks.org or mail your article to contribute@geeksforgeeks.org. See your article appearing on the GeeksforGeeks main page and help other Geeks.

Please Improve this article if you find anything incorrect by clicking on the "Improve Article" button below.