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firstspring1845/rpn.py

Last active December 27, 2015 10:59
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逆ポーランド電卓
Raw
rpn.py
stack = []
for s in raw_input().split():
if s in ('+','-','*','/'):
stack.append(eval('{2}{1}{0}'.format(stack.pop(),s,stack.pop())))
else:
stack.append(int(s))
print stack.pop()
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