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  1. def rpn(a):
  2. 	s=[]
  3. 	for x in a:
  4. 		if (x == '+'):
  5. 			a2=s[0]
  6. 			a1=s[1]
  7. 			r=int(a1)+int(a2)
  8. 			s=[r]+s[2:]
  9. 		elif (x == '-'):
  10. 			a2=s[0]
  11. 			a1=s[1]
  12. 			r=int(a1)-int(a2)
  13. 			s=[r]+s[2:]
  14. 		elif (x == '*'):
  15. 			a2=s[0]
  16. 			a1=s[1]
  17. 			r=int(a1)*int(a2)
  18. 			s=[r]+s[2:]
  19. 		elif (x == '/'):
  20. 			a2=s[0]
  21. 			a1=s[1]
  22. 			r=int(a1)//int(a2)
  23. 			s=[r]+s[2:]
  24. 		else:
  25. 			s=[x]+s
  26. 	return s[0]
  27.  
  28. aa=input()
  29. res=rpn(aa.split())
  30. print(res)
Success #stdin #stdout 0.02s 27712KB
comments (?)
stdin 
10 15 - 7 *
stdout 
-35
https://ideone.com/IfR6qm
language:
Python 3 (python  3.12)
created:
7 years ago
visibility:
public

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