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  1. # your code goes here
  2. from math import*
  3. fn={'/':lambda x: (x.pop)/(x.pop), '*':lambda x: (x.pop)*(x.pop), '+':lambda x: (x.pop)+(x.pop)}
  4. class Ser(object):
  5.  def __init__(self):
  6.   self.stack=[]
  7.   self.fn=fn
  8.  def pop(self):
  9.   return self.stack.pop()
  10.  def push(self,val):
  11.   self.stack+=[val]
  12.  def eval(self,code):
  13.   i=0
  14.   self.code=code
  15.   while i<len(code):
  16.    oldstack=self.stack[:]
  17.    try:
  18.     c=code[i]
  19.     if c=='"':
  20.      s = ""
  21.      i+=1
  22.      while i<len(code) and code[i]!='"':
  23.       s+=code[i]
  24.       i+=1
  25.      self.push(s)
  26.     elif c==" ":
  27.      pass
  28.     elif c.isdigit():
  29.      if code.find(c)<0 or code[code.find(c)-1].isdigit():
  30.       s=c
  31.       i+=1
  32.       while i<len(code) and code[i].isdigit():
  33.        s+=code[i]
  34.        i+=1
  35.      self.push(s)
  36.     else:
  37.      self.fn.get(c,lambda x:x)(self)
  38.    except SystemExit:
  39.     exit()
  40.    except:
  41.     self.stack=oldstack[:]
  42.    finally:
  43.     i+=1
  44.   print self.stack
  45.   while len(self.stack)>0:
  46.    print self.pop()
  47.  
  48.  
  49. def ex(code):
  50.  Stacky=Ser()
  51.  Stacky.eval(code)
  52. ex(raw_input())
Success #stdin #stdout 0.02s 9024KB
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[]
https://ideone.com/P6S1wY
language:
Python (cpython 2.7.16)
created:
8 years ago
visibility:
public

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