IBM 24 Back-end SDE Intern OA

IBM 24 Back-end SDE Intern OA （新人求米）


45分钟2道题
1. medium难度：
All people need to be grouped into teams where each team has 2 people and the sum of their skills must be equal for all teams. The efficiency of a team is the product of the skills of its members. Find the sum of the efficiencies of the teams. Return -1 if there is no way to create teams that sat

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username  -- account username
email -- account email address
items -- total number of items in inventory
total_weight -- total weight of items in inventory

谢谢大家～