【AICE打卡题】围栅栏

#include <iostream> using namespace std; int main() { int a, b; cin >> a >> b; if (b >= 4 * a) { cout << "yes" << endl; } else { cout << "no" << endl; } return 0; }

【AICE打卡题】偶数游戏

#include <iostream> using namespace std; int main() { int n; cin >> n; cout << n / 2 << endl; return 0; }