随笔分类 - PAT
摘要：魔鬼PAT训练 DAY1 3.1.简单模拟 B1001.害死人不偿命的(3n+1)猜想 (15') B1011.A+B和C (15') B1016.部分A+B (15') B1046.划拳 (15') B1008.数组元素循环右移问题 (20') B1018.锤子剪刀布 (20') 1065.A+B
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摘要：Sherlock Holmes received a note with some strange strings: Let's date! 3485djDkxh4hhGE 2984akDfkkkkggEdsb s&hgsfdk d&Hyscvnm. It took him only a minut
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摘要：Given any positive integer N, you are supposed to find all of its prime factors, and write them in the format N = p1k1×p2k2×⋯×pm
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摘要：The task of this problem is simple: insert a sequence of distinct positive integers into a hash table, and output the positions of the input numbers.
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摘要：Given any permutation of the numbers {0, 1, 2,..., N−1}, it is easy to sort them in increasing order. But what if Swap(0, *) is the ONLY operation tha
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摘要：Eva loves to collect coins from all over the universe, including some other planets like Mars. One day she visited a universal shopping mall which cou
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摘要：If a machine can save only 3 significant digits, the float numbers 12300 and 12358.9 are considered equal since they are both saved as 0 with simple c
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摘要：For two rational numbers, your task is to implement the basic arithmetics, that is, to calculate their sum, difference, product and quotient. Input Sp
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摘要：To store English words, one method is to use linked lists and store a word letter by letter. To save some space, we may let the words share the same s
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摘要：A reversible prime in any number system is a prime whose "reverse" in that number system is also a prime. For example in the decimal system 73 is a re
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摘要：Mooncake is a Chinese bakery product traditionally eaten during the Mid-Autumn Festival. Many types of fillings and crusts can be found in traditional
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摘要：For any 4-digit integer except the ones with all the digits being the same, if we sort the digits in non-increasing order first, and then in non-decre
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摘要：A family hierarchy is usually presented by a pedigree tree where all the nodes on the same level belong to the same generation. Your task is to find t
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摘要：A Binary Search Tree (BST) is recursively defined as a binary tree which has the following properties: The left subtree of a node contains only nodes
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摘要：Two integers are called "friend numbers" if they share the same sum of their digits, and the sum is their "friend ID". For example, 123 and 51 are fri
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摘要：Given a singly linked list L with integer keys, you are supposed to remove the nodes with duplicated absolute values of the keys. That is, for each va
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摘要：Given an increasing sequence S of N integers, the median is the number at the middle position. For example, the median of S1 = { 11, 12, 13, 14 } is 1
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摘要：The Japanese language is notorious for its sentence ending particles. Personal preference of such particles can be considered as a reflection of the s
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摘要：A number that will be the same when it is written forwards or backwards is known as a Palindromic Number. For example, 1234321 is a palindromic number
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摘要：Given N rational numbers in the form numerator/denominator, you are supposed to calculate their sum. Input Specification: Each input file contains one
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