题解 | C++ #参数解析#

#include <bits/stdc++.h>
using namespace std;

int main() {
    string s;
    vector<string> result;
    getline(cin, s);
    bool signFlag = false;
    int left;
    int cnt = 0;
    for(int i = 0; i < s.size(); i++){
        if(signFlag == true){
            if(s[i] != '"'){
                cnt++;
            }else{
                signFlag = false;
                result.push_back(s.substr(i-cnt, cnt));
                cnt = 0;
                i++;
                continue;
            }
        }

        if(s[i] == '"'){
            if(signFlag == false){
                signFlag = true;
            }
        }

        if(signFlag == false){
            if( s[i] == ' '){
                result.push_back(s.substr(i-cnt, cnt));
                cnt = 0;
            }
            if(i == (s.size()-1)){
                result.push_back(s.substr(i-cnt, cnt+1));
                cnt = 0;
            }
            if(s[i] != ' '){
                cnt++;
                continue;
            }
        }
    }
    cout << result.size() << endl;
    for(int i = 0; i < result.size(); i++){
        cout << result[i] << endl;
    }
}