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[LeetCode&Python] Problem 690. Employee Importance

时间:2018-11-03 11:17:45      阅读:152      评论:0      收藏:0      [点我收藏+]

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You are given a data structure of employee information, which includes the employee‘s unique id, his importance value and his direct subordinates‘ id.

For example, employee 1 is the leader of employee 2, and employee 2 is the leader of employee 3. They have importance value 15, 10 and 5, respectively. Then employee 1 has a data structure like [1, 15, [2]], and employee 2 has [2, 10, [3]], and employee 3 has [3, 5, []]. Note that although employee 3 is also a subordinate of employee 1, the relationship is not direct.

Now given the employee information of a company, and an employee id, you need to return the total importance value of this employee and all his subordinates.

Example 1:

Input: [[1, 5, [2, 3]], [2, 3, []], [3, 3, []]], 1
Output: 11
Explanation:
Employee 1 has importance value 5, and he has two direct subordinates: employee 2 and employee 3. They both have importance value 3. So the total importance value of employee 1 is 5 + 3 + 3 = 11.

 

Note:

  1. One employee has at most one direct leader and may have several subordinates.
  2. The maximum number of employees won‘t exceed 2000.

 

 
DFS
 
"""
# Employee info
class Employee(object):
    def __init__(self, id, importance, subordinates):
        # It‘s the unique id of each node.
        # unique id of this employee
        self.id = id
        # the importance value of this employee
        self.importance = importance
        # the id of direct subordinates
        self.subordinates = subordinates
"""
class Solution(object):
    def getImportance(self, employees, id):
        """
        :type employees: Employee
        :type id: int
        :rtype: int
        """
        emap={e.id:e for e in employees}
        def dfs(sid):
            em=emap[sid]
            return em.importance+sum(dfs(sid) for sid in em.subordinates)
        return dfs(id)

  

[LeetCode&Python] Problem 690. Employee Importance

标签:turn   nbsp   may   input   sel   mat   ike   amp   code   

原文地址:https://www.cnblogs.com/chiyeung/p/9899808.html

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