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[LeetCode] 455. Assign Cookies_Easy tag: Sort

时间:2018-08-19 10:39:34      阅读:135      评论:0      收藏:0      [点我收藏+]

Assume you are an awesome parent and want to give your children some cookies. But, you should give each child at most one cookie. Each child i has a greed factor gi, which is the minimum size of a cookie that the child will be content with; and each cookie j has a size sj. If sj >= gi, we can assign the cookie j to the child i, and the child i will be content. Your goal is to maximize the number of your content children and output the maximum number.

Note:
You may assume the greed factor is always positive. 
You cannot assign more than one cookie to one child.

Example 1:

Input: [1,2,3], [1,1]

Output: 1

Explanation: You have 3 children and 2 cookies. The greed factors of 3 children are 1, 2, 3. 
And even though you have 2 cookies, since their size is both 1, you could only make the child whose greed factor is 1 content.
You need to output 1.

 

Example 2:

Input: [1,2], [1,2,3]

Output: 2

Explanation: You have 2 children and 3 cookies. The greed factors of 2 children are 1, 2. 
You have 3 cookies and their sizes are big enough to gratify all of the children, 
You need to output 2.

思路用sort, 然后把最小的饼干依次给需要最少的child, 直到没有饼干可给或者没有孩子.

Code

class Solution:
    def findContentChildren(self, g, s):
        """
        :type g: List[int]
        :type s: List[int]
        :rtype: int
        """
        g.sort()
        s.sort()
        childi, cookiei = 0,0
        while childi < len(g) and cookiei < len(s):
            if s[cookiei] >= g[childi]:
                childi += 1
            cookiei += 1
        return childi

 

[LeetCode] 455. Assign Cookies_Easy tag: Sort

原文:https://www.cnblogs.com/Johnsonxiong/p/9499601.html

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