20ms 100% 雖然是hard題，但就是考察編寫程式碼的能力。有失於hard題的水準

class Solution(object):
    def fullJustify(self, words, maxWidth):
        """
        :type words: List[str]
        :type maxWidth: int
        :rtype: List[str]
        """
        res=[]
        count=0
        tmp=[]
        for w in words:
            if
 
 count+len(w)>maxWidth:
                if len(tmp)==1:
                    res.append(tmp[0]+' '*(maxWidth-len(tmp[0])))
                else:
                    Snum=maxWidth-count+len(tmp)
                    Enum=Snum//(len(tmp)-1)
                    index=Snum%(len(tmp)-1)
                    s=
 
''
                    for i in range(len(tmp)-1):
                        if i<index:
                            s=s+tmp[i]+' '*(Enum+1)
                        else:
                            s=s+tmp[i]+' '*Enum  
                    s+=tmp[-1]
                    res.append(s)
                tmp=
 
[w]
                count=len(w)+1
            else:
                count+=len(w)+1
                tmp.append(w)
        if len(tmp)==1:
            res.append(tmp[0]+' '*(maxWidth-len(tmp[0])))
        else:
            s=''
            for i in range(len(tmp)-1):
                    s=s+tmp[i]+' '  
            s+=tmp[-1]
            s=s+' '*(maxWidth-len(s))
            res.append(s)
        return res