Assign cookies wisely, and make more children happy

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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.

Github: code.dennyzhang.com

Credits To: leetcode.com

Leave me comments, if you have better ways to solve.

## https://code.dennyzhang.com/assign-cookies ## Basic Ideas: Greedy ## Assign the smallest cookie to the the mininum greedy child, if it matches ## Sort the list of g and s ## Complexity: Time O(n*log(n)), Space O(1) class Solution(object): def findContentChildren(self, g, s): """ :type g: List[int] :type s: List[int] :rtype: int """ g, s = sorted(g), sorted(s) i, res = 0, 0 # check for each cookie for cookie in s: # check child if cookie >= g[i]: # assign cookie res += 1 # move to next child i += 1 # no child to check if i == len(g): break return res # s = Solution() # print s.findContentChildren([10,9,8,7], [5,6,7,8]) # 2 # print s.findContentChildren([1,2, 3], [1,1]) # 1 # print s.findContentChildren([1,2], [1,2,3]) # 2