题解 | #牛牛的圆#
牛牛的圆
https://www.nowcoder.com/practice/75a202e826d048a39824ec694b5ce7e3
#include <stdio.h> #include<math.h> int main() { int r = 0; scanf("%d",&r); float F =pow(r,2)*3.14; printf("%.2f",F); return 0; }
牛牛的圆
https://www.nowcoder.com/practice/75a202e826d048a39824ec694b5ce7e3
#include <stdio.h> #include<math.h> int main() { int r = 0; scanf("%d",&r); float F =pow(r,2)*3.14; printf("%.2f",F); return 0; }
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