超级nice

#include <iostream>
#include <vector>
using namespace std;
struct Point{
    int x, y;
};
int cmp(Point p1, Point p2){
    return p1.x * p2.y - p2.x * p1.y;
}
int main(){
    int num_tests;
    cin >> num_tests;
    for(int i = 0; i < num_tests; i++){
        Point p0 = {0, 0};
        int sum = 0;
        string direction;
        cin >> direction;
        for(char d : direction){
            Point p1;
            if(d == 'N'){
                p1 = {p0.x, p0.y + 1};
            }else if(d == 'E'){
                p1 = {p0.x + 1, p0.y};
            }else if(d == 'S'){
                p1 = {p0.x, p0.y - 1};
            }else{
                p1 = {p0.x - 1, p0.y};
            }
            sum += cmp(p1, p0);
            p0 = p1;
        }
        if(sum > 0){
            cout << "CW" << endl;
        }else{
            cout << "CCW" << endl;
        }
    }
    return 0;
}