原创 Python實現Pat 1004. Counting Leaves (30)
題目 A family hierarchy is usually presented by a pedigree tree. Your job is to count those family members who have n
2020-06-20 18:32:41
原创 Python實現PAT 1063. Set Similarity (25)
1063. Set Similarity (25) Given two sets of integers, the similarity of the sets is defined to be Nc/Nt*100%, where
2020-06-20 18:32:41
原创 python實現pat 1033. To Fill or Not to Fill (25)
題目傳送門 """ 整理後的算法 #1.將加油站按距離排序 #2.在覆蓋範圍內，按優先級尋找下一個站點：比該站點價格小的最近站點；終點（或者記終點價格爲0）和前者合併；比該站點價格大但範圍內最小的站點 #3.尋找不到下一站點，則輸
2020-06-20 17:32:06
原创 Python實現Pat 1023. Have Fun with Numbers (20)
題目 Notice that the number 123456789 is a 9-digit number consisting exactly the numbers from 1 to 9, with no duplica
2020-06-20 17:31:56
原创 Python實現Pat 1078. Hashing (25)
Pat 1078. Hashing (25) The task of this problem is simple: insert a sequence of distinct positive integers into a h
2020-06-20 17:31:55
原创 python實現pat 1054. The Dominant Color (20)
1054. The Dominant Color (20) 題目 Behind the scenes in the computer’s memory, color is always talked about as a seri
2020-06-20 16:27:53
原创 Python實現Pat 1065. A+B and C (64bit) (20)
題目描述 Given three integers A, B and C in [-263, 263), you are supposed to tell whether A+B > C. 輸入描述: The first lin
2020-06-20 16:27:53
原创 詳解_數據校驗（奇偶校驗、CRC校驗、海明校驗）
文章目錄一、基本概念1.碼距的概念：2.校驗編碼3.碼距和校驗的關係二、奇偶校驗1.基本原理2.雙向奇偶校驗三.CRC校驗1.模2除運算規則2.基本原理3.編碼方法4.檢錯方法5.糾錯方法四、海明校驗1.基本原理2.確定校驗碼位置
2020-03-04 11:45:33
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原创 併發與並行、異步與同步、阻塞與非阻塞等概念理解
文章目錄1.併發與並行解釋1：解釋2：總結2.同步與異步解釋1解釋2解釋3總結3. 阻塞與非阻塞系統調用場景進程通信場景總結 1.併發與並行 解釋1： 並行(parallellism)：指在同一時刻，有多條指令在多個處理器上同
2020-03-03 14:20:28
原创 Python 實現 PAT:A+B in Hogwarts (20)
A+B in Hogwarts (20) 這題比較簡單，P #PYTHON 3.5 AB=input().split(' ') A= [int(x) for x in AB[0].split('.')] B= [int(x) fo
2020-02-24 04:28:21
原创 python實現pat 1071. Speech Patterns (25)
題目描述 People often have a preference among synonyms of the same word. For example, some may prefer “the police”, whi
2020-02-24 04:28:21
原创 Python實現Pat 1013. Battle Over Cities (25)
題目 It is vitally important to have all the cities connected by highways in a war. If a city is occupied by the enem
2020-02-24 04:28:21
原创 Python實現Pat 1088. Rational Arithmetic (20)
題目 For two rational numbers, your task is to implement the basic arithmetics, that is, to calculate their sum, diff
2020-02-24 04:28:21
原创 Python實現Pat 1085. Perfect Sequence (25)
題目 Given a sequence of positive integers and another positive integer p. The sequence is said to be a “perfect sequ
2020-02-24 04:28:21
原创 Python 實現1007. Maximum Subsequence Sum (25)
1007. Maximum Subsequence Sum (25) Given a sequence of K integers { N1, N2, …, NK }. A continuous subsequence is de
2020-02-24 04:28:21