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Author: bm01wait

src/main/java/com/ctci/arraysandstrings/CheckPermutationTest.java

@@ -0,0 +1,14 @@
+package arraysandstrings;
+import org.junit.runner.JUnitCore;
+import org.junit.runner.Result;
+import org.junit.runner.notification.Failure;
+public class CheckPermutationTest {
+    public static void main(String[] args) {
+        //testAssertions();
+        Result result = JUnitCore.runClasses(IIRFilter.class);
+        for (Failure failure : result.getFailures()) {
+            System.out.println(failure.toString());
+        }
+        System.out.println("Result == "+result.wasSuccessful());
+    }
+}

src/main/java/com/ctci/arraysandstrings/IsUniqueTest.java

@@ -0,0 +1,13 @@
+import org.junit.runner.JUnitCore;
+import org.junit.runner.Result;
+import org.junit.runner.notification.Failure;
+public class IsUniqueTest {
+    public static void main(String[] args) {
+        //testAssertions();
+        Result result = JUnitCore.runClasses(IIRFilter.class);
+        for (Failure failure : result.getFailures()) {
+            System.out.println(failure.toString());
+        }
+        System.out.println("Result == "+result.wasSuccessful());
+    }
+}

src/main/java/com/ctci/arraysandstrings/OneAwayTest.java

@@ -0,0 +1,13 @@
+import org.junit.runner.JUnitCore;
+import org.junit.runner.Result;
+import org.junit.runner.notification.Failure;
+public class OneAwayTest {
+    public static void main(String[] args) {
+        //testAssertions();
+        Result result = JUnitCore.runClasses(IIRFilter.class);
+        for (Failure failure : result.getFailures()) {
+            System.out.println(failure.toString());
+        }
+        System.out.println("Result == "+result.wasSuccessful());
+    }
+}

src/main/java/com/ctci/arraysandstrings/PalindromePermutationTest.java

@@ -0,0 +1,13 @@
+import org.junit.runner.JUnitCore;
+import org.junit.runner.Result;
+import org.junit.runner.notification.Failure;
+public class PalindromePermutationTest {
+    public static void main(String[] args) {
+        //testAssertions();
+        Result result = JUnitCore.runClasses(IIRFilter.class);
+        for (Failure failure : result.getFailures()) {
+            System.out.println(failure.toString());
+        }
+        System.out.println("Result == "+result.wasSuccessful());
+    }
+}

src/main/java/com/ctci/arraysandstrings/RotateMatrix.java

@@ -1,16 +1,76 @@
 package com.ctci.arraysandstrings;
-
+import java.util.ArrayList;
+import java.util.List;
+ 
 /**
  * @author rampatra
  * @since 2019-01-20
  */
 public class RotateMatrix {
-
-    public static void rotateImage(int[][] pixels) {
-        
+     // Function to rotate the matrix in a clockwise
+    // direction
+    public static void
+    rotateMatrix(List<List<Integer> > matrix) {
+        int n = matrix.size();
+ 
+        // Transpose the matrix
+        for (int i = 0; i < n; i++) {
+            for (int j = i; j < n; j++) {
+                int temp = matrix.get(i).get(j);
+                matrix.get(i).set(j, matrix.get(j).get(i));
+                matrix.get(j).set(i, temp);
+            }
+        }
+ 
+        // Reverse the columns
+        for (int i = 0; i < n; i++) {
+            for (int j = 0, k = n - 1; j < k; j++, k--) {
+                int temp = matrix.get(j).get(i);
+                matrix.get(j).set(i, matrix.get(k).get(i));
+                matrix.get(k).set(i, temp);
+            }
+        }
     }
-
+ 
+    // Function to print the matrix
+    public static void
+    printMatrix(List<List<Integer> > matrix) {
+        for (int i = 0; i < matrix.size(); i++) {
+            for (int j = 0; j < matrix.get(i).size(); j++) {
+                System.out.print(matrix.get(i).get(j)
+                                 + " ");
+            }
+            System.out.println();
+        }
+    }
+ 
     public static void main(String[] args) {
-        
+        List<List<Integer> > matrix = new ArrayList<>();
+        matrix.add(new ArrayList<Integer>() {
+            {
+                add(1);
+                add(2);
+                add(3);
+            }
+        });
+        matrix.add(new ArrayList<Integer>() {
+            {
+                add(4);
+                add(5);
+                add(6);
+            }
+        });
+        matrix.add(new ArrayList<Integer>() {
+            {
+                add(7);
+                add(8);
+                add(9);
+            }
+        });
+        System.out.println("Original matrix:");
+        printMatrix(matrix);
+        rotateMatrix(matrix);
+        System.out.println("Rotated matrix:");
+        printMatrix(matrix);
     }
 }

src/main/java/com/ctci/arraysandstrings/RotateMatrixTest.java

@@ -0,0 +1,14 @@
+package arraysandstrings;
+import org.junit.runner.JUnitCore;
+import org.junit.runner.Result;
+import org.junit.runner.notification.Failure;
+public class RotateMatrixTest {
+    public static void main(String[] args) {
+        //testAssertions();
+        Result result = JUnitCore.runClasses(IIRFilter.class);
+        for (Failure failure : result.getFailures()) {
+            System.out.println(failure.toString());
+        }
+        System.out.println("Result == "+result.wasSuccessful());
+    }
+}

src/main/java/com/ctci/arraysandstrings/StringCompressionTest.java

@@ -0,0 +1,14 @@
+package arraysandstrings;
+import org.junit.runner.JUnitCore;
+import org.junit.runner.Result;
+import org.junit.runner.notification.Failure;
+public class StringCompressionTest {
+    public static void main(String[] args) {
+        //testAssertions();
+        Result result = JUnitCore.runClasses(StringCompression.class);
+        for (Failure failure : result.getFailures()) {
+            System.out.println(failure.toString());
+        }
+        System.out.println("Result == "+result.wasSuccessful());
+    }
+}

src/main/java/com/ctci/arraysandstrings/StringRotationTest.java

@@ -0,0 +1,14 @@
+package arraysandstrings;
+import org.junit.runner.JUnitCore;
+import org.junit.runner.Result;
+import org.junit.runner.notification.Failure;
+public class StringRotationTest {
+    public static void main(String[] args) {
+        //testAssertions();
+        Result result = JUnitCore.runClasses(StringRotation.class);
+        for (Failure failure : result.getFailures()) {
+            System.out.println(failure.toString());
+        }
+        System.out.println("Result == "+result.wasSuccessful());
+    }
+}

src/main/java/com/ctci/arraysandstrings/URLifyTest.java

@@ -0,0 +1,14 @@
+package arraysandstrings;
+import org.junit.runner.JUnitCore;
+import org.junit.runner.Result;
+import org.junit.runner.notification.Failure;
+public class URLifyTest {
+    public static void main(String[] args) {
+        //testAssertions();
+        Result result = JUnitCore.runClasses(URLify.class);
+        for (Failure failure : result.getFailures()) {
+            System.out.println(failure.toString());
+        }
+        System.out.println("Result == "+result.wasSuccessful());
+    }
+}

src/main/java/com/ctci/arraysandstrings/ZeroMatrixTest.java

@@ -0,0 +1,14 @@
+package arraysandstrings;
+import org.junit.runner.JUnitCore;
+import org.junit.runner.Result;
+import org.junit.runner.notification.Failure;
+public class ZeroMatrixTest {
+    public static void main(String[] args) {
+        //testAssertions();
+        Result result = JUnitCore.runClasses(ZeroMatrix.class);
+        for (Failure failure : result.getFailures()) {
+            System.out.println(failure.toString());
+        }
+        System.out.println("Result == "+result.wasSuccessful());
+    }
+}

src/main/java/com/ctci/bitmanipulation/BinaryToStringTest.java

@@ -0,0 +1,14 @@
+package com.ctci.bitmanipulation;
+import org.junit.runner.JUnitCore;
+import org.junit.runner.Result;
+import org.junit.runner.notification.Failure;
+public class BinaryToStringTest {
+    public static void main(String[] args) {
+        //testAssertions();
+        Result result = JUnitCore.runClasses(BinaryToString.class);
+        for (Failure failure : result.getFailures()) {
+            System.out.println(failure.toString());
+        }
+        System.out.println("Result == "+result.wasSuccessful());
+    }
+}

src/main/java/com/ctci/bitmanipulation/ConversionTest.java

@@ -0,0 +1,14 @@
+package com.ctci.bitmanipulation;
+import org.junit.runner.JUnitCore;
+import org.junit.runner.Result;
+import org.junit.runner.notification.Failure;
+public class ConversionTest {
+    public static void main(String[] args) {
+        //testAssertions();
+        Result result = JUnitCore.runClasses(Conversion.class);
+        for (Failure failure : result.getFailures()) {
+            System.out.println(failure.toString());
+        }
+        System.out.println("Result == "+result.wasSuccessful());
+    }
+}

src/main/java/com/ctci/bitmanipulation/DebuggerTest.java

@@ -0,0 +1,14 @@
+package com.ctci.bitmanipulation;
+import org.junit.runner.JUnitCore;
+import org.junit.runner.Result;
+import org.junit.runner.notification.Failure;
+public class DebuggerTest {
+    public static void main(String[] args) {
+        //testAssertions();
+        Result result = JUnitCore.runClasses(Debugger.class);
+        for (Failure failure : result.getFailures()) {
+            System.out.println(failure.toString());
+        }
+        System.out.println("Result == "+result.wasSuccessful());
+    }
+}

src/main/java/com/ctci/bitmanipulation/DrawLineTest.java

@@ -0,0 +1,14 @@
+package com.ctci.bitmanipulation;
+import org.junit.runner.JUnitCore;
+import org.junit.runner.Result;
+import org.junit.runner.notification.Failure;
+public class DrawLineTest {
+    public static void main(String[] args) {
+        //testAssertions();
+        Result result = JUnitCore.runClasses(DrawLine.class);
+        for (Failure failure : result.getFailures()) {
+            System.out.println(failure.toString());
+        }
+        System.out.println("Result == "+result.wasSuccessful());
+    }
+}

src/main/java/com/ctci/bitmanipulation/FlipBitToWinTest.java

@@ -0,0 +1,14 @@
+package com.ctci.bitmanipulation;
+import org.junit.runner.JUnitCore;
+import org.junit.runner.Result;
+import org.junit.runner.notification.Failure;
+public class FlipBitToWinTest {
+    public static void main(String[] args) {
+        //testAssertions();
+        Result result = JUnitCore.runClasses(FlipBitToWin.class);
+        for (Failure failure : result.getFailures()) {
+            System.out.println(failure.toString());
+        }
+        System.out.println("Result == "+result.wasSuccessful());
+    }
+}

src/main/java/com/ctci/bitmanipulation/InsertionTest.java

@@ -0,0 +1,14 @@
+package com.ctci.bitmanipulation;
+import org.junit.runner.JUnitCore;
+import org.junit.runner.Result;
+import org.junit.runner.notification.Failure;
+public class InsertionTest {
+    public static void main(String[] args) {
+        //testAssertions();
+        Result result = JUnitCore.runClasses(Insertion.class);
+        for (Failure failure : result.getFailures()) {
+            System.out.println(failure.toString());
+        }
+        System.out.println("Result == "+result.wasSuccessful());
+    }
+}

src/main/java/com/ctci/bitmanipulation/NextNumberTest.java

@@ -0,0 +1,14 @@
+package com.ctci.bitmanipulation;
+import org.junit.runner.JUnitCore;
+import org.junit.runner.Result;
+import org.junit.runner.notification.Failure;
+public class NextNumberTest {
+    public static void main(String[] args) {
+        //testAssertions();
+        Result result = JUnitCore.runClasses(Insertion.class);
+        for (Failure failure : result.getFailures()) {
+            System.out.println(failure.toString());
+        }
+        System.out.println("Result == "+result.wasSuccessful());
+    }
+}

src/main/java/com/ctci/bitmanipulation/PairwiseSwapTest.java

@@ -0,0 +1,14 @@
+package com.ctci.bitmanipulation;
+import org.junit.runner.JUnitCore;
+import org.junit.runner.Result;
+import org.junit.runner.notification.Failure;
+public class PairwiseSwapTest {
+    public static void main(String[] args) {
+        //testAssertions();
+        Result result = JUnitCore.runClasses(Insertion.class);
+        for (Failure failure : result.getFailures()) {
+            System.out.println(failure.toString());
+        }
+        System.out.println("Result == "+result.wasSuccessful());
+    }
+}