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back to boardShow all messages Hide all messages#include<stdio.h>
#include<math.h>
#define pi 3.14159265
int main()
{ int l,r;
double result,angle;
scanf("%d%d",&l,&r);
if((double)l-sqrt(2)*r<1e-6)
result=1.0;
else if((double)l/2.0-(double)r>-1e-6)
result=pi*r*r/(double)(l*l);
else
{ angle=acos(l/2.0/r);
result=((pi-4*angle)*r*r+2*l*r*sin(angle))/(double)(l*l);
}
printf("%.3lf\n",result*100.0);
return 0;
} SO DO I :
#include <stdio.h>
#include <math.h>
int main()
{
double rect,r,piedeg,area=0,theta;
scanf("%lf %lf",&rect,&r);
if(rect>=(r*2)){
printf("%.3lf",3.1415926535*r*r);
}
else if(((rect*sqrt(2))/2)<=r){
printf("%.3lf",rect*rect);
}
else{
rect=rect/2;
theta=acos(rect/r);
piedeg=(2*3.1415926535)-(8*theta);
area=(piedeg*3.1415926535*r*r)/
(2*3.1415926535);
area=area+(tan(theta)*rect*rect*4);
printf("%.3lf",area);
}
return 0;
}
IT GOT CE , PLS HELP sqrt(2)=>sqrt(2.0) ||sqrt((double) 2); |
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