[HackerEarth] You are working in the HR department of a huge corporation. Each employee may have several direct managers and/or several direct subordinates. Of course, his subordinates may also have t - 题解

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题目信息
题号 P19480
标题 [HackerEarth] You are working in the HR department of a huge corporation. Each employee may have several direct managers and/or several direct subordinates. Of course, his subordinates may also have t
难度 普及
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