Assign Cookies

LeetCode Q 455 - Assign Cookies

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

Code:

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