From fef6d2cc76518eee75fc0d95e765bd2be8a660ee Mon Sep 17 00:00:00 2001 From: thing1 Date: Wed, 2 Apr 2025 10:26:21 +0000 Subject: did comp sci and some electronics --- comp/work/54/rpn.py | 21 +++++++++++++++++++++ 1 file changed, 21 insertions(+) create mode 100644 comp/work/54/rpn.py (limited to 'comp/work/54/rpn.py') diff --git a/comp/work/54/rpn.py b/comp/work/54/rpn.py new file mode 100644 index 0000000..053a256 --- /dev/null +++ b/comp/work/54/rpn.py @@ -0,0 +1,21 @@ +def eval(expr): + s = [] + for i in expr.split(): + if i.isdigit(): + s.push(int(i)) + else: + a = s.pop() + b = s.pop() + match i: + case '+': + s.push(b + a) + case '-': + s.push(b - a) + case '*': + s.push(b * a) + case '/': + s.push(b / a) + + print(s.pop()) + +eval("1 2 +") -- cgit v1.2.3