查找字符串中出现最多的字符和个数：Ruby #2
Description
str.split('').uniq.map {|x| [x, str.count(x)]}.sort{|a,b| b[1]<=>a[1]}[0]str = "sdsdsddssssssdd"
str.split('').uniq.map {|x| [x, str.count(x)]}.sort{|a,b| b[1]<=>a[1]}[0]
# => ["s", 9]{{ message }}
str.split('').uniq.map {|x| [x, str.count(x)]}.sort{|a,b| b[1]<=>a[1]}[0]str = "sdsdsddssssssdd"
str.split('').uniq.map {|x| [x, str.count(x)]}.sort{|a,b| b[1]<=>a[1]}[0]
# => ["s", 9]