Online Judge
| Run ID | Author | Problem | Lang | Verdict | Score | Time | Memory | Code Length | Submit Time |
|---|---|---|---|---|---|---|---|---|---|
| 333221 | 李俞家骅 | 【C1-9】圆环面积 | C++ | Accepted | 100 | 1 MS | 244 KB | 160 | 2025-07-16 10:25:21 |
Tests(3/3):
#include<bits/stdc++.h> using namespace std; int main(){ double a,b; cin>>a>>b; cout<<fixed<<setprecision(6)<<3.14*a*a-3.14*b*b<<endl; return 0; }