【C】#牛牛的圆#
牛牛的圆
https://www.nowcoder.com/practice/75a202e826d048a39824ec694b5ce7e3
#include <stdio.h> int main() { int r; scanf("%d", &r); printf("%.2f", 3.14 * r * r); return 0; }
牛牛的圆
https://www.nowcoder.com/practice/75a202e826d048a39824ec694b5ce7e3
#include <stdio.h> int main() { int r; scanf("%d", &r); printf("%.2f", 3.14 * r * r); return 0; }
相关推荐