摘要: include <bits/stdc++.h> using namespace std; double r, pi=3.14159; int main() { cin >> r; cout << fixed << setprecision(4) << r2 << " "; cout << fixed 阅读全文
posted @ 2024-10-12 21:30 浩瀚宇宙星晨 阅读(4) 评论(0) 推荐(0) 编辑