Difficulty Levels

Choose your challenge. Start easy and work your way up.

215
Total Problems

Common Digits Count

Count the number of digits that appear in both of two given integers.

easy
43

Consecutive Vowels Count

Count the number of times a vowel is followed by another vowel in a given string

easy
43

Creating a Contact Form with AJAX

Build a dynamic contact form that sends user data to a server using AJAX without page reload

medium
43

Space Separated Integers Sum In Python

Calculate the sum of all integers provided in a single space-separated line of input.

easy
43

Print Numbers & Ranges

Given N unique integers, print integers and integer ranges in sorted order, where consecutive integers are represented as ranges.

medium
43

Series – Decreasing Limits

Print integers in decreasing limits from N to 1, then N-1 to 2, then N-2 to 3, and so on until the limits meet.

medium
43

Function Print from N+1 to 2N – CTS PATTERN

Fix the logical error in a function that prints integers from N+1 to 2N inclusive

easy
42

Maximum Sum – Equal Digits Sum

Find the maximum sum of any two integers from a list whose digit sums are equal, or return -1 if no such pair exists.

medium
43

Zig-Zag Swap – Columns

Swap matrix columns in a zig-zag pattern where halves of columns are exchanged based on specific pairing rules

medium
43

Integer – Max Factor Count

Find the integer with the maximum number of factors from a given list of integers

medium
42

Nth Decimal Place

Find the digit at the Nth decimal place when dividing X by Y

easy
42

Zig-Zag Triangle – String Pattern

Print a zig-zag triangular pattern using characters from a string with alternating forward and reverse order

medium
41
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