題目
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.
解題思路
將兩個(gè)數(shù)組排序，i=0開(kāi)始遍歷孩子數(shù)組，找到能滿足該孩子的的糖果j,找到后i++,j++,ret++，找不到則j++，直到孩子數(shù)組遍歷完或者cookie數(shù)組遍歷完
注意
題目中未說(shuō)給的連個(gè)數(shù)組是有序的，所以需要先排序
代碼
assignCookies.go
package _455_Assign_Cookies
import (
"sort"
)
func findContentChildren(g []int, s []int) int {
var ret int
sort.Ints(g)
sort.Ints(s)
len1 := len(g)
len2 := len(s)
for i, j := 0, 0; i < len1 && j < len2; {
if g[i] <= s[j] {
i++
j++
ret++
} else {
j++
}
}
return ret
}
