给定圆的半径,请在不使用浮点算法的情况下绘制圆。 输出 :
以下程序使用一个简单的概念。令圆的半径为r。考虑要绘制的圆周围大小为(2r + 1)*(2r + 1)的正方形。现在,走过广场内的每个点。对于每个点(x,y),如果(x,y)位于圆内(或x ^ 2 + y ^ 2 C++
// C++ program to draw a circle without
// floating point arithmetic
#include
Java
// Java program to draw a circle without
// floating point arithmetic
import java.io.*;
class GFG {
static void drawCircle(int r)
{
// Consider a rectangle of size N*N
int N = (2*r+1);
int x, y; // Coordinates inside the rectangle
// Draw a square of size N*N.
for (int i = 0; i < N; i++)
{
for (int j = 0; j < N; j++)
{
// Start from the left most corner point
x = i-r;
y = j-r;
// If this point is inside the circle, print it
if (x*x + y*y <= r*r+1 )
System.out.print(".");
else // If outside the circle, print space
System.out.print(" ");
System.out.print(" ");
}
System.out.println();
}
}
// Driver Program to test above function
public static void main (String[] args) {
drawCircle(8);
}
//This code is contributed by ajit.
}
Python3
# Python3 program to draw a circle without
# floating point arithmetic
def drawCircle(r) :
# Consider a rectangle of size N*N
N = 2*r + 1
# Draw a square of size N*N.
for i in range(N) :
for j in range(N) :
# Start from the left most corner point
x = i - r
y = j - r
# If this point is inside the circle, print it
if (x * x + y * y <= r * r + 1 ) :
print(".", end = "")
else :# If outside the circle, print space
print(" ", end = "")
print(" ", end = "")
print()
drawCircle(8)
# This code is contributed by divyeshrabadiya07.
C#
// C# program to draw a circle without
// floating point arithmetic
using System;
public class GFG{
static void drawCircle(int r)
{
// Consider a rectangle of size N*N
int N = (2*r+1);
int x, y; // Coordinates inside the rectangle
// Draw a square of size N*N.
for (int i = 0; i < N; i++)
{
for (int j = 0; j < N; j++)
{
// Start from the left most corner point
x = i-r;
y = j-r;
// If this point is inside the circle, print it
if (x*x + y*y <= r*r+1 )
Console.Write(".");
else // If outside the circle, print space
Console.Write(" ");
Console.Write(" ");
}
Console.WriteLine();
}
}
// Driver Program to test above function
static public void Main (){
drawCircle(8);
}
//This code is contributed by Sachin.
}
PHP