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Python: Check if first digit/character in each element in a given list is same or not

Python List: Exercise - 204 with Solution

Write a Python program to check if first digit/character of each element in a given list is same or not.

Sample Solution:

Python Code:

def test(lst):
    result = all(str(x)[0] == str(lst[0])[0] for x in lst) 
    return result
nums = [1234, 122, 1984, 19372, 100]
print("\nOriginal list:")
print(nums)
print("Check if first digit in each element of the said given list is same or not!")
print(test(nums))
nums = [1234, 922, 1984, 19372, 100]
print("\nOriginal list:")
print(nums)
print("Check if first digit in each element of the said given list is same or not!")
print(test(nums))
nums = ['aabc', 'abc', 'ab', 'a']
print("\nOriginal list:")
print(nums)
print("Check if first character in each element of the said given list is same or not!")
print(test(nums))
nums = ['aabc', 'abc', 'ab', 'ha']
print("\nOriginal list:")
print(nums)
print("Check if first character in each element of the said given list is same or not!")
print(test(nums))

Sample Output:

Original list:
[1234, 122, 1984, 19372, 100]
Check if first digit in each element of the said given list is same or not!
True

Original list:
[1234, 922, 1984, 19372, 100]
Check if first digit in each element of the said given list is same or not!
False

Original list:
['aabc', 'abc', 'ab', 'a']
Check if first character in each element of the said given list is same or not!
True

Original list:
['aabc', 'abc', 'ab', 'ha']
Check if first character in each element of the said given list is same or not!
False

Pictorial Presentation:

Python List: Check if first digit/character in each element in a given list is same or not.

Flowchart:

Flowchart: Check if first digit/character in each element in a given list is same or not.

Visualize Python code execution:

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Python Code Editor:

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Previous: Write a Python program to join adjacent members of a given list.
Next: Write a Python program to find the indices of elements of a given list, greater than a specified value.

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Python: Tips of the Day

Floor Division:

When we speak of division we normally mean (/) float division operator, this will give a precise result in float format with decimals.

For a rounded integer result there is (//) floor division operator in Python. Floor division will only give integer results that are round numbers.

print(1000 // 300)
print(1000 / 300)

Output:

3
3.3333333333333335