题解 | #坐标移动#

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

bool isDigital(string s){
    for(int i=0;i<s.size();i++)
        if(!isdigit(s[i]))
           return false;
    return true;
}


int main(){
    int x=0;
    int y=0;
    int t;
    string str,s;
    vector<string> vec;
    getline(cin, str);

    for(int i=0;i<str.size();){
        s.clear();
        while(str[i]!=';'){
            stringstream ss;
            ss<<str[i];
            s.append(ss.str());
            i++;
        }
        if(!s.empty())
            vec.push_back(s);
        i++;
    }

    for(int i=0;i<vec.size();i++){
        if(vec[i][0]!='A' && vec[i][0]!='D' && vec[i][0]!='W' && vec[i][0]!='S')
            continue;
        if(vec[i].size()>3 || vec[i].size()<2)
            continue;
        if(!isDigital(vec[i].substr(1)))
            continue;

        t=stoi(vec[i].substr(1));

        if(vec[i][0]=='A')
            x-=t;
        else if(vec[i][0]=='D')
            x+=t;
        else if(vec[i][0]=='S')
            y-=t;
        else
            y+=t;
    }

    cout<<x<<","<<y<<endl;

    return 0;
}