百练 2720 大象喝水
2012-12-16 02:33
162 查看
题目链接:http://bailian.openjudge.cn/practice/2720
# include <stdio.h> int main() { int h,r,n,v; scanf("%d%d",&h,&r); v=3.14159*r*r*h; n=20000/v; if(n!=0) printf("%d\n",n+1); else printf("%d\n",n); return 0; }