Leetcode455. Assign Cookies

一、原题

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.

二、思路

1、先将两个数组按升序的顺序排序

2、使用两个变量分别指向两个数组，i指向g，j指向s

3、若是当前饼干大小小于孩子的满足感，即s[j] 
  
 三、代码
 
  

    public class Solution { 
   
     public int findContentChildren(int[] g, int[] s) { 
   
        int i=0; 
   
 int j=0; 
   
 Arrays.sort(g); 
   
 Arrays.sort(s); 
   
 while(i if(g[i]<=s[j]) 
   
 i++; 
   
 j++;   
   
 } 
   
 return i; 
   
          
   
     } 
   
 }