題目
Given an array of stringsarr. Stringsis a concatenation of a sub-sequence ofarrwhich haveunique characters.
Returnthe maximum possible lengthofs.
Example 1:
Input: arr = [
題目
We havenjobs, where every jobis scheduled to be done fromstartTime[i]toendTime[i], obtaining a profitofprofit[i].
You're given thestartTime,endTimeandprofitarrays,you need to output