#include<bits/stdc++.h>
using namespace std;
int main()
{
double a,b,c,d,r;
cin >>a;
r = 3.14159;
c = a*2;
d = a*2*r;
b = a*a*r;
cout <<fixed<<setprecision(4) <<c <<" " ;
cout<<fixed<<setprecision(4) ...
| English Article | Word Count | Duration | Accuracy | Speed | Backspace | Error | Slogan |
|---|---|---|---|---|---|---|---|
| 《c++》 | 257字 | 4.0分钟 | 99% | 95 CPM | 45 次 | 2 | 不及格，加强练习！ |
| The wrong word this time: ;,} | |||||||
|
Suggestion:
可能对按键不够熟悉，或者对输入法不够熟练所导致，不要急慢慢来，先打对把准确率提高，然后逐渐的加快速度，最后才能打准打快。
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| Inspirational quotes: 四山旗似晴霞卷，万马蹄如骤雨来。 ——明·王越 | |||||||
| What do you think of this article? Give it a rating and let it serve as a guiding light for others | |||||||
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