立方体内可内切的最大球体
这里给定的是一个边长为 a 的立方体，任务是找到可以在其中内接的最大球体。 例:
Input: a = 4
Output: 2
Input: a = 5
Output: 2.5
接近 :
从 2d 图中可以清楚地看到， 2r = a ， 其中， a =立方体的边 r =球体的半径 所以 r = a/2 。
以下是上述方法的实现:
C++
// C++ Program to find the biggest sphere
// inscribed within a cube
#include <bits/stdc++.h>
using namespace std;
// Function to find the radius of the sphere
float sphere(float a)
{
// side cannot be negative
if (a < 0)
return -1;
// radius of the sphere
float r = a / 2;
return r;
}
// Driver code
int main()
{
float a = 5;
cout << sphere(a) << endl;
return 0;
}
Java 语言(一种计算机语言，尤用于创建网站)
// Java Program to find the biggest sphere
// inscribed within a cube
class GFG{
// Function to find the radius of the sphere
static float sphere(float a)
{
// side cannot be negative
if (a < 0)
return -1;
// radius of the sphere
float r = a / 2;
return r;
}
// Driver code
public static void main(String[] args)
{
float a = 5;
System.out.println(sphere(a));
}
}
// This code is contributed by mits
Python 3
# Python 3 Program to find the biggest
# sphere inscribed within a cube
# Function to find the radius
# of the sphere
def sphere(a):
# side cannot be negative
if (a < 0):
return -1
# radius of the sphere
r = a / 2
return r
# Driver code
if __name__ == '__main__':
a = 5
print(sphere(a))
# This code is contributed
# by SURENDRA_GANGWAR
C
// C# Program to find the biggest
// sphere inscribed within a cube
using System;
class GFG
{
// Function to find the radius
// of the sphere
static float sphere(float a)
{
// side cannot be negative
if (a < 0)
return -1;
// radius of the sphere
float r = a / 2;
return r;
}
// Driver code
static public void Main ()
{
float a = 5;
Console.WriteLine(sphere(a));
}
}
// This code is contributed by ajit
服务器端编程语言（Professional Hypertext Preprocessor 的缩写）
<?php
// PHP Program to find the biggest
// sphere inscribed within a cube
// Function to find the radius
// of the sphere
function sphere($a)
{
// side cannot be negative
if ($a < 0)
return -1;
// radius of the sphere
$r = ($a / 2);
return $r;
}
// Driver code
$a = 5;
echo sphere($a);
// This code is contributed by akt_mit
?>
java 描述语言
<script>
// javascript Program to find the biggest sphere
// inscribed within a cube
// Function to find the radius of the sphere
function sphere(a)
{
// side cannot be negative
if (a < 0)
return -1;
// radius of the sphere
var r = a / 2;
return r;
}
// Driver code
var a = 5;
document.write(sphere(a));
// This code is contributed by 29AjayKumar
</script>
Output:
2.5
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