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