Word Frequency(https://leetcode.com/problems/word-frequency/description/)code
Example:ip
Assume that words.txt
has the following content:leetcode
the day is sunny the the the sunny is is
Your script should output the following, sorted by descending frequency:io
the 4 is 3 sunny 2 day 1
而後來看看強大的 awkawk
awk -vRS='( |\n)+' '{a[$0]++}END{for(i in a)m[a[i]]=i;i=asort(a);for(;i;)print m[a[i]],a[i--]}' words.txt
sort