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