//package com.company;
import java.io.*;
import java.util.Scanner;
public class Main {
static float P
= (float) Math.
PI;
class Circle
{
public float Area(float r
)
{
return (float) (P * r * r);
}
public float Perimeter(float r)
{
return (float) (2 * P * r);
}
}
class Rect
{
public float Area(float a,
float b
)
{
return (float) (a * b);
}
public float Perimeter(float a, float b)
{
return (float) ((a+b)*2);
}
}
class Triangle
{
public float Area(float a,
float b,
float c
)
{
float pp = (a + b + c)/2;
float ans
= (float) Math.
sqrt(pp
* (pp
-a
) * (pp
-b
) * (pp
-c
));
return (float) (ans);
}
public float Perimeter(float a, float b, float c)
{
return (float) (a + b + c);
}
}
class Elipse
{
public float Area(float a,
float b
)
{
return (float) (a * b * P);
}
public float Perimeter(float a, float b)
{
float ans
= (float) (2 * P
* (float) Math.
sqrt((a
*a
+ b
*b
)/2));
return (float) (ans);
}
}
Scanner scan = new Scanner(file);
float[] a = new float[100];
int i = 0;
//System.out.println(S);
char[] ch = S.toCharArray();
a[0] = ch[0];
int test = 0;
if(a[0] == (int) 'e')test = 1;
else a[0] = a[0] - '0';
while(scan.hasNext())
{
i++;
a[i] = scan.nextInt();
}
//ELIPSE CASE
if(test == 1)
{
Elipse figure = new Elipse();
float p
= figure.
Perimeter(a
[1], a
[2]); float ar
= figure.
Area(a
[1], a
[2]);
if(Math.
round(p
) == (float) (Math.
floor(figure.
Perimeter(a
[1], a
[2]) * 10)/10))out_data.
println("P=" + Math.
round(p
));
else
{
float per
= (float) (Math.
floor(p
* 10)/10);
out_data.println("P=" + per);
}
if(Math.
round(ar
) == (float) (Math.
floor(figure.
Perimeter(a
[1], a
[2]) * 10)/10))out_data.
println("A=" + Math.
round(ar
));
else
{
float are
= (float) (Math.
floor(ar
* 10)/10);
out_data.println("A=" + are);
}
}
else if(i == 2)
{
Triangle figure = new Triangle();
float p
= figure.
Perimeter(a
[0],a
[1], a
[2]); float ar
= figure.
Area(a
[0],a
[1],a
[2]);
if((float)(int)p
== p
)out_data.
println("P=" + Math.
round(p
));
else
{
float per
= (float) (Math.
floor(p
* 10)/10);
out_data.println("P=" + per);
}
if((float)(int)ar
== ar
)out_data.
println("A=" + Math.
round(ar
));
else
{
float are
= (float) (Math.
floor(ar
* 10)/10);
out_data.println("A=" + are);
}
}
else if(i == 1)
{
Rect figure = new Rect();
float p
= figure.
Perimeter(a
[0],a
[1]); float ar
= figure.
Area(a
[0],a
[1]);
if((float)(int)p
== p
)out_data.
println("P=" + Math.
round(p
));
else
{
float per
= (float) (Math.
floor(p
* 10)/10);
out_data.println("P=" + per);
}
if((float)(int)ar
== ar
)out_data.
println("A=" + Math.
round(ar
));
else
{
float are
= (float) (Math.
floor(ar
* 10)/10);
out_data.println("A=" + are);
}
}
else if(i == 0)
{
Circle figure = new Circle();
float p
= figure.
Perimeter(a
[0]); float ar
= figure.
Area(a
[0]);
if((float)(int)p
== p
)out_data.
println("P=" + Math.
round(p
));
else
{
float per
= (float) (Math.
floor(p
* 10)/10);
out_data.println("P=" + per);
}
if((float)(int)ar
== ar
)out_data.
println("A=" + Math.
round(ar
));
else
{
float are
= (float) (Math.
floor(ar
* 10)/10);
out_data.println("A=" + are);
}
}
out_data.close();
}
}
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