openai.api_key='YOUR_API_KEY'response=openai.Completion.create(engine="davinci-codex",prompt="# Python code to calculate the factorial of a number\n\ndef factorial(n):\n if n == 0:\n return 1\n else:\n return n * factorial(n-1)\n\nnumber = 5\nresult = factorial(number)\npri...
@tail_call_optimized def factorial(n, acc=1): "calculate a factorial" if n == 0: return acc return factorial(n-1, n*acc) print factorial(10000) # prints a big, big number, # but doesn't hit the recursion limit. @tail_call_optimized def fib(i, current = 0, next = 1): if ...
def factorial(n): if n == 0: return 1 return factorial(n - 1) * n 1. 2. 3. 4. 但是这个函数调用,如果展开,会变成如下的形式: factorial(4) factorial(3) * 4 factorial(2) * 3 * 4 factorial(1) * 2 * 3 * 4 factorial(0) * 1 * 2 * 3 * 4 1 * 1 * 2 * 3 * 4 1 ...
@tail_call_optimized deffactorial(n,acc=1):"calculate a factorial"ifn==0:returnaccreturnfactorial(n-1,n*acc)printfactorial(10000) 为了更清晰的展示开启尾递归优化前、后调用栈的变化和tail_call_optimized装饰器抛异常退出递归调用栈的作用, 我这里利用pudb调试工具做了动图 <br/> 开启尾递归优化前的调...
def factorial(n):"""计算阶乘的递归函数 (A recursive function to calculate factorial)"""if n == 1:return 1else:return n * factorial(n-1) 在这个例子中,我们使用文档字符串(docstring)来解释函数的功能,这是Python特有的一种注释方式。这种注释不仅对阅读代码的人有帮助,也可以被Python的自动化文档工具...
"calculate a factorial" if n == 0: return acc return factorial(n-1, n*acc) print factorial(10000) 这里解释一下sys._getframe()函数: sys._getframe([depth]): Return a frame object from the call stack. If optional integer depth is given, return the frame object that many calls below ...
importmathfromthreadingimportThreaddefcalc_fact(num):math.factorial(num)num=600000t=Thread(target=calc_fact,daemon=True,args=[num])print("About to calculate: {}!".format(num))t.start()print("Calculating...")t.join()print("Calculated") ...
Simple Example – Testing Factorial Function Factorial of a number, N, is defined to be the product of numbers from 1 to N; i.e. N! = 1*2*3* … N. Clearly a straightforward way to calculate factorial is using a for-loop where temporary initialized to 1, will have to start incremen...
deffactorial(x):#---#--- Code snippet from The Math Vault ---#--- Calculate factorial (C) Arthur Smith 1999 ---#---result =str(1) i =1#Thanks Adamwhilei <= x:#result = result * i #It's faster to use *=#result = str(result * result + i)#result = int(result...
A factorial is a number derived from the product of the number and all the integers below it. So, the factorial of 4 is 4 x 3 x 2 x 1 = 24. Creating a function in C++ to calculate a factorial requires verbose declarations, whereas the Python function is far more concise. ...