Longest Substring with K Distinct Characters
Given an integer k and a string s, write a function to determine the length of the longest substring in s that contains at most k distinct characters.
Staircase Climbing Ways
There is a staircase with N steps, and you can ascend either 1 step or 2 steps at a time. Write a function to calculate the number of unique ways to climb the staircase. The sequence of steps matters.
January 11, 2025 | Amazon, Data Structure, dsa | No comments