fibonacci algorithm python

The iteration is implemented as follows:defFab (n): N1= 1N2= 1ifN: Print("wrong input!") return-1 while(n-2) >0:n3= n2+N1 N1=n2 N2=N3 n-=1returnN3number= Int (Input ("Please enter the number of Fibonacci numbers required:") ) Result=Fab (number)Print(Result)The recursive implementation is as follows:def Fab (n): if or n==2: = 1 else: = Fab (n-1) +fab (n-2) return= Int (input (" Please enter the n

comparison of the Fibonacci sequences implemented using iterations and recursion:#recursive implementation of the Fibonacci sequence: #1. Using an iterative approachdefFibonacci (N): N1= 1N2= 1N3= 2ifN 0:return-1Print('Error,please Enter a correct month ...') elifn = = 1: returnN1elifn = = 2: returnN2Else: forIinchRange (3,n+1): N3= n2 +N1 N1=n2 N2=N3returnN3#2. Implement it in a

Title Description Everyone knows the Fibonacci sequence, and now asks for an integer n, please output the nth item of the Fibonacci sequence (starting with 0, and the No. 0 item is 0).nRecursive implementations:Class solution (): def Fibnacci (self,n): if n Non-recursive implementations:def Fibnacci (n): result = [0,1] if n Python recursive and no

#! /usr/bin/python #-*-coding:utf-8-*-"" "An interesting topic Fibonacci sequence " " " #the method We know to solve this issue ----recursion def fib (n): if n ==1 or n ==2: return 1 else: Retu RN Fib (n-1) + fib (n-2) n = ten print "Fibonacci sequence the value of%d is:"% N,FIB (n) # somewhat meaning def fibv2 ( N): a,b =1,1

In the daily situation, it may involve a data model, that is, the sum of the first two numbers added together, equal to the third number, where we can refer to the Fibonacci series data model, for example, the following numbers0,1,1,2,3,5,13,13,21,34,55,144,233,377,610#打印出如上述数列, the first two numbers are added equal to the number of subsequent numbers (here is a restriction condition if arg3>10, return ARG3, otherwise an unrestricted loop)#顶一个函数funcde

P1543Extremum Problem accepted Tags: [show tags]BackgroundXiao Ming's Math Tour 2.Descriptive narrativeM, N is known as an integer, and the following two conditions are met:①m, n∈1,2. ..., K② (n^ 2-mn-m^2) ^2=1Compile a procedure. For a given k, a set of M, N, which satisfies the above two conditions, and the maximum value of the m^2+n^2 is obtained. For example, if k=1995. m=987,n=1597, the M, n satisfies the condition, and the m^2+n^2 value is the largest.Format input FormatEnter the value of

Random input Prime number:x = Int (input ("Please enter the number:")) if x! = 1: for I in range (2, x): if x% i = = 0: Break Else: Print (x)Find all the primes within 10Wc = 0for x in range (2,100000): for I in range (2, int (x * * 0.5) +1): if x% i = = 0: Break Else: c + = 1 print (x) print (c)101 items in the Fibonacci sequencex = 0y = 0for i in range (0, 102): if i = = 0: y = 1 elif i =

Define the function first, then call the function in the while loop and get the result you want.def getfib (num): fib=[1,1] for I in range (num+1): tmp=fib[-1]+fib[-2] Fib.append (TMP) return FIB[NU M-1]while true:num=input (' Please input a num:\n '). Strip () try:num=int (num) print (GETFIB (num)) exc Ept:print (' invalid ') continueAfter execution, enter a number, and the script automatically draws the Fibonacci number of the corresponding bit. Inp

The Fibonacci sequence can be generated in a good way with generators, directly on the code:# 1 Control Maximum digital versiondef fib (max): x, y = 0,1while y 　　# 2 Control Iteration count version def fib (count): X,y,n = 0,1,1while N 　　"The beauty of simplicity" Fibonacci that tangent series generator python

For example, the Fibonacci sequence: 1,1,2,3,5,8,13,21,34 .... It can't be written with a list generation, but we can print it out using a function: Def fib (number): N, a, b = 0, 0, 1 while n The python generator implements the Fibonacci sequence

In this paper, we describe the method for Python to print Fibonacci sequences. Share to everyone for your reference. The implementation method is as follows: #打印斐波拉契数列 #!/usr/bin/pythondef Feibolaqi (n): if n = = 0 or N = = 1: return n else: return Feibolaqi (n-1) + FE Ibolaqi (n-2) num = Int (raw_input (' please input a int: ') "If num >= 0: print ' Feibolaqi (%d) is%d '% (Num,feibolaqi (nu m)

In this paper, a simple example of the Python implementation of Fibonacci sequence recursive function method, the code is concise and understandable. Share for everyone to use for reference. The main function code is as follows: Def Fab (n): if n==1: return 1 if n==0: return 0 else: result=int (Fab (+int) n-2) return result The test code is as follows: For I in ran

In front of the iterator and generator principle, it has been said that the __iter__ method and the role of the __next__ method, here do not repeat the description.In this complement an example of implementing an iterator protocol.Example 1: (The iterator generates an infinite value before the exception is thrown stopiteration)Class C1:def __init__ (Self,start):Self.start = Startdef __iter__ (self):return selfDef next (self):Self.start + = 1Return Self.startO1 = C1 (10)For I in O1:Print IExample

sorted sequences, which is used to hold the merged sequence, set two pointers, The initial position is the starting position of two sorted sequences, Compare the elements pointed to by two pointers, select a relatively small element into the merge space, And move the pointer to the next position; Repeat step 3 until a pointer reaches the end of the sequence; Copies all the remaining elements of another sequence directly to the end of the merge sequence. a

sorted sequences, which is used to hold the merged sequence, set two pointers, The initial position is the starting position of two sorted sequences, Compare the elements pointed to by two pointers, select a relatively small element into the merge space, And move the pointer to the next position; Repeat step 3 until a pointer reaches the end of the sequence; Copies all the remaining elements of another sequence directly to the end of the merge sequence. a

Algorithm (Python), algorithm python An algorithm is a specific and effective operation step to solve a problem. The complexity of the algorithm indicates the code running efficiency. It is represented by an uppercase O braces, su

This is a creation in Article, where the information may have evolved or changed. Common internal sorting algorithms are: Insert sort, hill sort, select sort, bubble sort, merge sort, quick sort, heap sort, cardinality sort, etc. Summarize with a picture: Merge sort (English: merge sort, or mergesort) is an efficient sorting algorithm that creates an O (n log n) on a merge operation. It was first presented by John von Neumann in 1945. The

Python implements the cache replacement algorithm with time for space, and python Algorithm Cache refers to a memory that can exchange high-speed data. It exchanges data with the CPU before the memory, so the speed is very fast. Cache is to temporarily store some data in some places, which may be memory or hard disk. W

Python algorithm representation conceptual literacy tutorial, python algorithm literacy tutorial This article explains the concept of python algorithm representation for your reference. The specific content is as follows: Constant

Python scheduling algorithm code explanation, python Algorithm Scheduling Algorithm The operating system manages the limited resources of the system. When multiple processes (or requests from multiple processes) need to use these resources, because of the limited resources,