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  1. # your code goes here
  2.  
  3. from math import*
  4. fn={'/':lambda x: (x.pop())/(x.pop()), '*':lambda x: (x.pop())*(x.pop()), '+':lambda x: (x.pop())+(x.pop())}
  5. class Ser(object):
  6.  def __init__(self):
  7.   self.stack=[]
  8.   self.fn=fn
  9.  def pop(self):
  10.   return self.stack.pop()
  11.  def push(self,val):
  12.   self.stack+=[val]
  13.  def eval(self,code):
  14.   i=0
  15.   self.code=code
  16.   while i<len(code):
  17.    oldstack=self.stack[:]
  18.    try:
  19.     c=code[i]
  20.     print c
  21.     print c.isdigit()
  22.     if c=='"':
  23.      s = ""
  24.      i+=1
  25.      while i<len(code) and code[i]!='"':
  26.       s+=code[i]
  27.       i+=1
  28.      self.push(s)
  29.     elif c.isdigit():
  30.      print "digit"
  31.      if code.find(c)<0 or code[code.find(c)-1].isdigit():
  32.       s=c
  33.       i+=1
  34.       while i<len(code) and code[i].isdigit():
  35.        s+=code[i]
  36.        i+=1
  37.      print "hello"+s
  38.      self.push(int(s))
  39.      print self.stack
  40.     else:
  41.      self.fn.get(c,lambda x:x)(self)
  42.    except SystemExit:
  43.     exit()
  44.    except:
  45.     self.stack=oldstack[:]
  46.    finally:
  47.     i+=1
  48.    while len(self.stack)>0:
  49.     print self.pop()
  50.  
  51.  
  52. def ex(code):
  53.  Stacky=Ser()
  54.  Stacky.eval(code)
  55. ex(raw_input())
  56.  
Success #stdin #stdout 0.01s 9016KB
comments (?)
stdin
copy 
5 4*
stdout
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5
True
digit
 
False
4
True
digit
*
False
https://ideone.com/EDlabb
language:
Python (cpython 2.7.16)
created:
8 years ago
visibility:
public

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