题解 | #单词倒排#

#include <cctype>
#include <iostream>
#include <string>
#include <vector>
using namespace std;

int main() {
    string input;
    vector<string> outWords;
    getline(cin, input);
    int pos = 0;
    while(pos<input.length() && (!isalpha(input[pos]))) ++pos;
    for(int i=pos; i<input.length(); ++i) {
        if(!isalpha(input[i])) {
            outWords.push_back(input.substr(pos, i-pos));
            pos = i;
            while(pos<input.length() && (!isalpha(input[pos]))) ++pos;
        }
    }
    outWords.push_back(input.substr(pos, input.length()-pos));
    for(int i=outWords.size()-1; i>=0; --i) {
        if(i) cout << outWords[i] << " ";
        else cout << outWords[0];
    }

    return 0;
}
// 64 位输出请用 printf("%lld")