Assign Cookies

2/22/2017来源:ASP.NET技巧人气:2039

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.

class Solution(object):
    def findContentChildren(self, g, s):
        """
        :type g: List[int]
        :type s: List[int]
        :rtype: int
        """
        
        g.sort()
        s.sort()
        
        cookiesi = 0
        childi = 0
        
        while cookiesi < len(s) and childi < len(g):
            if s[cookiesi] >= g[childi]:
                childi += 1
            cookiesi += 1
        return childi
        
def findContentChildren(self, g, s):
    g.sort()
    s.sort()
    res = 0
    i = 0
    for e in s:
        if i == len(g):
            break
        if e >= g[i]:
            res += 1
            i += 1
    return res
class Solution(object):
    def findContentChildren(self, g, s):
        g.sort()
        s.sort()
        i, j = 0, 0
        while i < len(g) and j < len(s):
            if s[j] >= g[i]:
                i += 1
            j += 1
        return i