C++代码

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

int main() {
    int n, m;
    cin >> n >> m;
    
    vector<int> dir(n);
    vector<string> job(n);
    
    for (int i = 0; i < n; ++i) {
        cin >> dir[i] >> job[i];
    }
    
    int current_pos = 0;
    
    for (int i = 0; i < m; ++i) {
        int ai, si;
        cin >> ai >> si;
        
        int d = dir[current_pos];
        int delta;
        
        if (ai == 0) { // 左数
            if (d == 0) {
                delta = -si;
            } else {
                delta = si;
            }
        } else { // 右数
            if (d == 0) {
                delta = si;
            } else {
                delta = -si;
            }
        }
        
        current_pos = (current_pos + delta) % n;
        if (current_pos < 0) {
            current_pos += n;
        }
    }
    
    cout << job[current_pos] << endl;
    
    return 0;
}