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<oerjan> learn Postorder is the same as Polish notation, since Post was Polish. Not to be confused with reverse Polish notation.
author | HackBot |
---|---|
date | Wed, 24 Feb 2016 05:00:04 +0000 |
parents | e037173e0012 |
children | 797fb6694b97 3e54f8d1843f |
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#!/bin/sh allquotes | if [ "$1" ]; then if expr "$1" + 0 >/dev/null 2>&1; then sed "$1q;d" else grep -P -i -- "$1" fi else shuf -n 1; fi