题解 | #单词倒排#

#include<bits/stdc++.h>

using namespace std;

int main(){
    
    string str;
    while(getline(cin,str)){
        vector<string> vec;
        int start=0;
        for(int i=0;i<str.size();++i){
            if((str[i]>='a'&&str[i]<='z')||(str[i]>='A'&&str[i]<='Z')){
                continue;
            }else{
                int len = i-start;
                if(len>=1)
                    vec.push_back(str.substr(start,i-start));
                start=i+1;
            }
        }
        vec.push_back(str.substr(start));
        reverse(vec.begin(), vec.end());
        for(auto it=vec.begin();it!=vec.end();++it)
            cout<<*it<<" ";
    }
    return 0;
}