leetcode 解题思路

In a special ranking system,each voter gives a rank from highest to lowest to all teams participated in the competition. The ordering of teams is decided by who received the most position-one votes. If two or more teams tie in the first position, we cons.

You have an array oflogs. Each log is a space delimited string of words. For each log, the first word in each log is an alphanumericidentifier. Then, either: Each word after the identifier will ...

Give two users' ordered online time series, and each section records the user's login time pointxand offline time pointy. Find out the time periods when both users are online at the same time, and ...