1. Handling Edge Cases in Data Frames
Given a problematic data frame, think of edge cases and perform data manipulation and summarization. The task involves advanced manipulation of text, strings, and datetime, considering the total running time of clusters allocated to the initial days, accounting for daily time, precise start/end dates and times, followed by summarization.
2. Data Manipulation with Python Data Frames
Given a data frame containing multiple companies' monthly revenues, calculate their cumulative income for the current year. The focus is on standard pandas operations for data manipulation.
3. Count Contiguous Subarrays with Alternating Even and Odd Numbers
Given an array of integers, count the number of contiguous subarrays that represent a sequence of numbers alternating between even and odd.
4. Longest Diagonal Pattern Streak in Matrix
Find the longest diagonal streak of the pattern 1,2,0,2,0 in a matrix.
5. Word Recovery from Skeletons
Given a word and a list of skeletons, return the skeletons that can recover the word using the characters in the skeleton. For example, given the word 'hello' and skeletons ['he-lo', 'he--o'], return ['he-lo'].