PROG-T1016: Treasure

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

const double sqrt2 = sqrt(2);

int main(){

    double x = 0;
    double y = 0;
    while(true){
        string str;
        cin >> str;
        if(str[0] == '*'){
            break;
        }
        int sz = str.size();
        if(isalpha(str[sz - 2])){
            int mv = stoi(str.substr(0, sz - 2));
            if(str[sz - 2] == 'N'){
                y += (double)mv / sqrt2;
            } else if(str[sz - 2] == 'S'){
                y -= (double)mv / sqrt2;
            }
            if(str[sz - 1] == 'E'){
                x += (double)mv / sqrt2;
            } else if(str[sz - 1] == 'W'){
                x -= (double)mv / sqrt2;
            }
        } else {
            int mv = stoi(str.substr(0, sz - 1));
            if(str[sz - 1] == 'N'){
                y += mv;
            } else if(str[sz - 1] == 'S'){
                y -= mv;
            } else if(str[sz - 1] == 'E'){
                x += mv;
            } else if(str[sz - 1] == 'W'){
                x -= mv;
            }
        }
    }
    printf("%.3f %.3f\n%.3f", x, y, sqrt(x * x + y * y));

    return 0;
}