原题链接：https://www.patest.cn/contests/pat-a-practise/1110
1110. Complete Binary Tree (25)
Given a tree, you are supposed to tell if it is a complete binary tree.
原题链接：https://www.patest.cn/contests/pat-a-practise/1109
1109. Group Photo (25)
Formation is very important when taking a group photo. Given the rules of
原题链接：https://www.patest.cn/contests/pat-a-practise/1064
1064. Complete Binary Search Tree (30)
A Binary Search Tree (BST) is recursively defined as a binary tree
原题链接：https://www.patest.cn/contests/pat-a-practise/1063
1063. Set Similarity (25)
Given two sets of integers, the similarity of the sets is defined to
原题链接：https://www.patest.cn/contests/pat-a-practise/1062
1062. Talent and Virtue (25)
About 900 years ago, a Chinese philosopher Sima Guang wrote a history
原题链接：https://www.patest.cn/contests/pat-a-practise/1061
1061. Dating (20)
Sherlock Holmes received a note with some strange strings:
原题链接：https://www.patest.cn/contests/pat-a-practise/1108
1108. Finding Average (20)
The basic task is simple: given N real numbers, you are supposed to
原题链接：https://www.patest.cn/contests/pat-a-practise/1107
1107. Social Clusters (30)
When register on a social network, you are always asked to specify
原题链接：https://www.patest.cn/contests/pat-a-practise/1106
1106. Lowest Price in Supply Chain (25)
A supply chain is a network of retailers（零售商）, distributors（经销商
原题链接：https://www.patest.cn/contests/pat-a-practise/1105
1105. Spiral Matrix (25)
This time your job is to fill a sequence of N positive integers into a