题解 | #牛牛的圆#
牛牛的圆
https://www.nowcoder.com/practice/75a202e826d048a39824ec694b5ce7e3
#include <stdio.h> int main() { int r; scanf("%d",&r); float s; s=3.14*r*r; printf("%f\n",s); return 0; }#菜狗的解题#
牛牛的圆
https://www.nowcoder.com/practice/75a202e826d048a39824ec694b5ce7e3
#include <stdio.h> int main() { int r; scanf("%d",&r); float s; s=3.14*r*r; printf("%f\n",s); return 0; }#菜狗的解题#
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