题解 | #句子逆序#

#include <iostream>
#include <string>
#include <stack>
using namespace std;

int main() {
    string str;
    while(getline(cin, str)){
        stack<string> stk;
        string tmp;
        for(int i = 0; i < str.length(); i++){
            if(str[i] != ' '){
                tmp += str[i];
            }
            if(str[i] == ' ' || i == str.length() - 1){
                stk.push(tmp);
                tmp.clear();
            }
        }
        while(!stk.empty()){
            string top = stk.top();
            stk.pop();
            cout << top << " ";
        }
        cout << endl;
    }
}