455. Assign Cookies
Description
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.
Solution
/**
* Solved with two pointers
* @param {number[]} g
* @param {number[]} s
* @return {number}
*/
var findContentChildren = function(g, s) {
"use strict";
g.sort((a,b) => a-b);
s.sort((a,b) => a-b);
let assignChild = 0;
for (let i = g.length-1, j = s.length-1; i >= 0; i--) {
if (g[i] <= s[j]) {
assignChild++;
j--;
}
if (assignChild === g.length) {
return assignChild;
}
}
return assignChild;
};