C++ 简单方法

#include<iostream>
#include<cstring>
#include<vector>
using namespace std;

int main (){
    string str;
    while(cin >> str){
        vector<string> temp;
        char * cstr = new char[str.size()+1];
        strcpy(cstr, str.c_str());
        char *p = strtok(cstr, ";");
        while(p!=0){
            temp.push_back(p);
            p = strtok(NULL, ";");
        }
        int x=0,y=0;
        for(auto i: temp){
            if(i.size()<=3&&i.size()>0){
                bool flag = true;
                int sum = 0;
                for(int k=1;k<i.size();k++){
                    if(!isdigit(i[k])){
                        flag = false;
                        break;
                    }else{
                        sum = sum*10+(i[k]-48);
                    }
                }
                if(!flag) continue;

                switch(i[0]){
                    case 'A': x-=sum; break;
                    case 'D': x+=sum; break;
                    case 'W': y+=sum; break;
                    case 'S': y-=sum; break;
                }
            }
        }
        cout << x << "," << y << endl;
    }
    return 0;
}