亦余心之所善兮,虽九死其犹未悔。这篇文章主要讲述[LeetCode] Friends Of Appropriate Ages 适合年龄段的朋友相关的知识,希望能为你提供帮助。
Some people will make friend requests. The
list of their ages is given and
ages[i]
is the age of the
ith person.
Person A will NOT friend request person B (B != A) if any of the following conditions are true:
age[B] < = 0.5 * age[A] + 7
age[B] > age[A]
age[B] > 100 & & age[A] < 100
Note that if A requests B, B does not necessarily request A. Also, people will not friend request themselves.
How many total friend requests are made?
Example 1:
Input: [16,16] Output: 2 Explanation: 2 people friend request each other.
Example 2:
Input: [16,17,18] Output: 2 Explanation: Friend requests are made 17 -> 16, 18 -> 17.
Example 3:
Input: [20,30,100,110,120] Output: Explanation: Friend requests are made 110 -> 100, 120 -> 110, 120 -> 100.
Notes:
1 < = ages.length < = 20000
.1 < = ages[i] < = 120
.
推荐阅读
- No mapping found for HTTP request with URI [/webapp/] in DispatcherServlet with name 'SpringMVC&
- Android使用全局变量来传递数据
- Android(layout属性大全)
- Android-Java-Lock
- Android(进程优先级)
- appium框架之bootstrap
- Android-okhttp?????????????????????????????????
- Android 代码开发工作流
- Android重复点击事件处理