From 57f22b225b9fe44b0144b6c4d6581a05e885c8cf Mon Sep 17 00:00:00 2001
From: E7-87-83 <fungcheokyin@gmail.com>
Date: Mon, 11 Apr 2022 02:33:25 +0800
Subject: correct filing again

---
 challenge-159/java/Moebius.java | 79 -----------------------------------------
 1 file changed, 79 deletions(-)
 delete mode 100644 challenge-159/java/Moebius.java

(limited to 'challenge-159/java/Moebius.java')

diff --git a/challenge-159/java/Moebius.java b/challenge-159/java/Moebius.java
deleted file mode 100644
index b52e049ca8..0000000000
--- a/challenge-159/java/Moebius.java
+++ /dev/null
@@ -1,79 +0,0 @@
-// The Weekly Challenge 159
-// Task 2 Moebius Function
-// Usage: java Moebius N
-
-public class Moebius
-{
-    public static void main(String[] args)
-    {
-        int N = 1;
-        try {
-            N = Integer.parseInt(args[0]);
-        } catch (Exception e) {
-            System.err.print("Please use a positive integer ");
-            System.err.println("as your parameter.");
-            System.exit(0);
-        }
-        double[][] complex1 = new double[][] { {1, 0} , {0, 1} };
-        double[][] complex2 = new double[][] { {0, 1} , {-1, 0} };
-        System.out.println(Math.round(mu(N)));
-    }
-
-
-    public static double mu(int n)
-    {
-        double[][] sum = ithRootOfUnityModuloN(1, n);
-        LOOP: for (int i=2; i<n; i++) 
-        {
-            for (int s=2; s<n; s++)
-            {
-                if ( (i*s) % n == 0 )
-                    continue LOOP;
-            }
-            sum = complexAddition(sum, ithRootOfUnityModuloN(i,n));
-        }
-        return sum[0][0];
-    }
-
-
-    public static double[][] complexAddition(double[][] c1, double[][] c2)
-    {
-        double a = c1[0][0];
-        double b = c1[0][1];
-        double c = c1[1][0];
-        double d = c1[1][1];
-        double e = c2[0][0];
-        double f = c2[0][1];
-        double g = c2[1][0];
-        double h = c2[1][1];
-        return new double[][] {{ a+e, b+f }, { c+g, d+h }};
-    }
-
-
-
-    public static double[][] complexMultiplication(double[][] c1, double[][] c2)
-    {
-        double a = c1[0][0];
-        double b = c1[0][1];
-        double c = c1[1][0];
-        double d = c1[1][1];
-        double e = c2[0][0];
-        double f = c2[0][1];
-        double g = c2[1][0];
-        double h = c2[1][1];
-        return new double[][] {{a*e+b*g, a*f+b*h}, {c*e+d*g, c*f+d*h}};
-    }
-
-
-
-    public static double[][] ithRootOfUnityModuloN(int i , int n)
-    {
-        double realPart = Math.cos(2*Math.PI*i/n);
-        double imaginaryPart = Math.sin(2*Math.PI*i/n);
-        double[][] result = new double[][] {
-                              {realPart, imaginaryPart},
-                              {-imaginaryPart, realPart}  
-                            };
-        return result;
-    }
-}
-- 
cgit