455. Assign Cookies
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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.
代码实现
greedy algorithm
public int FindContentChildren(int[] g, int[] s) { //g=[2,1,3] //i //s=[1,1] //j Array.Sort(g); Array.Sort(s); int rtn = 0; for (int i = 0, j = 0; i < g.Length && j < s.Length; j++) //cookies { if (g[i] <= s[j]) //gratify { rtn++; i++; } } return rtn; }
题库
Leetcode算法题目解决方案每天更新在github库中,欢迎感兴趣的朋友加入进来,也欢迎star,或pull request。https://github.com/jackzhenguo/leetcode-csharp
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