#include <bits/stdc++.h> using namespace std; using ll = long long; deque<pair<int, int>> snake; bool moveSnake(int dir) { // TODO: 请实现移动逻辑 if (snake.empty()) { return true; } int n = snake.size(); //先记住蛇头的位置 pair<int, int>p = snake.at(n - 1); //改变蛇头的位置 if (dir == 1) { snake....