2 条题解
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2023chenzehao LV 5 @ 2023-7-27 18:02:31
#include using namespace std; const double pi=3.1416; int main() { double r,c,s; scanf("%lf",&r); c=2pir; s=pirr; printf("%.2f\n",c); printf("%.2f\n",s); return 0; }
2023liuaojie
LV 7
@ 2023-9-27 18:20:34
- 1
#include using namespace std; const double pi=3.1416; int main() { double r,c,s; scanf("%lf",&r); c=2pir; s=pirr; printf("%.2f\n",c); printf("%.2f\n",s); return 0; }