题解 | #搬圆桌#
搬圆桌
https://www.nowcoder.com/practice/81bb01ef2bb144808a8277e9164a0886
#include<stdio.h>
int main()
{
long r,x,y,x1,y1;
while(scanf("%ld %ld %ld %ld %ld",&r,&x,&y,&x1,&y1)!=EOF)
{
getchar();
int bu;
long d;
int R=2*r;
d=pow((x-x1)*(x-x1)+(y-y1)*(y-y1),0.5);
int n=(int)(d/(2*r));
if(n*2*r<d)
{
n=n+1;
}
printf("%d\n",n);
}
return 0;
}
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