Python: Count the number of elements in a list within a specified range

Last update on August 19 2022 21:50:49 (UTC/GMT +8 hours)

Python List: Exercise - 31 with Solution

Write a Python program to count the number of elements in a list within a specified range.

Python: Count the number of elements in a list within a specified range

Sample Solution:-

Python Code:

def count_range_in_list(li, min, max):
	ctr = 0
	for x in li:
		if min <= x <= max:
			ctr += 1
	return ctr

list1 = [10,20,30,40,40,40,70,80,99]
print(count_range_in_list(list1, 40, 100))

list2 = ['a','b','c','d','e','f']
print(count_range_in_list(list2, 'a', 'e'))

Sample Output:

6                                                                                                             
5

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Python: Tips of the Day

Returns True if the provided function returns True for every element in the list, False otherwise:

Example:

def tips_every(lst, fn=lambda x: x):
  return all(map(fn, lst))

print(tips_every([2, 4, 3], lambda x: x > 1))
print(tips_every([1, 2, 3]))

Output:

True
True