greedy——455. Assign Cookies

题目描述

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: 1Explanation: 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.

比较两个数组，当饼干数组的某个元素>= 孩子需要的，就可以分给小孩

解题思路

给两个数组排序，设置计数器，遍历两个数组，判断是否能分给饼干，能的话，计数器＋1

代码如下

class Solution {public:    int findContentChildren(vector<int>& g, vector<int>& s) {   sort(g.begin(), g.end());sort(s.begin(), s.end());int p = 0;int count = 0;for(int i = 0; i < g.size(); i++){int j = p;for(j; j < s.size(); j++){if(s[j] >= g[i]){p = j + 1;count++;break;}}}return count;    }};