Kaynağa Gözat

all tests pass

Allison Ziegler 6 yıl önce
ebeveyn
işleme
857a2397fa

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.idea/.name Dosyayı Görüntüle

@@ -0,0 +1 @@
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+FundamentalDrills-Part1

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.idea/compiler.xml Dosyayı Görüntüle

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+<?xml version="1.0" encoding="UTF-8"?>
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+<project version="4">
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+  <component name="CompilerConfiguration">
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+    <annotationProcessing>
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+      <profile name="Maven default annotation processors profile" enabled="true">
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+        <sourceOutputDir name="target/generated-sources/annotations" />
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+        <sourceTestOutputDir name="target/generated-test-sources/test-annotations" />
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+        <outputRelativeToContentRoot value="true" />
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+        <module name="FundamentalDrills-Part1" />
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+      </profile>
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+    </annotationProcessing>
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+    <bytecodeTargetLevel>
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+      <module name="FundamentalDrills-Part1" target="1.5" />
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+    </bytecodeTargetLevel>
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+  </component>
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+</project>

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.idea/misc.xml Dosyayı Görüntüle

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+<?xml version="1.0" encoding="UTF-8"?>
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+<project version="4">
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+  <component name="MavenProjectsManager">
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+    <option name="originalFiles">
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+      <list>
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+        <option value="$PROJECT_DIR$/pom.xml" />
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+      </list>
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+    </option>
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+  </component>
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+  <component name="ProjectRootManager" version="2" languageLevel="JDK_1_8" project-jdk-name="1.8" project-jdk-type="JavaSDK">
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+    <output url="file://$PROJECT_DIR$/classes" />
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+  </component>
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+</project>

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.idea/modules.xml Dosyayı Görüntüle

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+<?xml version="1.0" encoding="UTF-8"?>
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+<project version="4">
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+  <component name="ProjectModuleManager">
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+    <modules>
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+      <module fileurl="file://$PROJECT_DIR$/FundamentalDrills-Part1.iml" filepath="$PROJECT_DIR$/FundamentalDrills-Part1.iml" />
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+    </modules>
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+  </component>
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+</project>

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.idea/vcs.xml Dosyayı Görüntüle

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+<?xml version="1.0" encoding="UTF-8"?>
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+<project version="4">
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+  <component name="VcsDirectoryMappings">
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+    <mapping directory="$PROJECT_DIR$" vcs="Git" />
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+  </component>
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+</project>

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FundamentalDrills-Part1.iml Dosyayı Görüntüle

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+<?xml version="1.0" encoding="UTF-8"?>
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+<module org.jetbrains.idea.maven.project.MavenProjectsManager.isMavenModule="true" type="JAVA_MODULE" version="4">
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+  <component name="NewModuleRootManager" LANGUAGE_LEVEL="JDK_1_5">
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+    <output url="file://$MODULE_DIR$/target/classes" />
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+    <output-test url="file://$MODULE_DIR$/target/test-classes" />
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+    <content url="file://$MODULE_DIR$">
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+      <sourceFolder url="file://$MODULE_DIR$/src/main/java" isTestSource="false" />
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+      <sourceFolder url="file://$MODULE_DIR$/src/test/java" isTestSource="true" />
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+      <excludeFolder url="file://$MODULE_DIR$/target" />
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+    </content>
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+    <orderEntry type="inheritedJdk" />
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+    <orderEntry type="sourceFolder" forTests="false" />
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+    <orderEntry type="library" scope="TEST" name="Maven: junit:junit:4.12" level="project" />
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+    <orderEntry type="library" scope="TEST" name="Maven: org.hamcrest:hamcrest-core:1.3" level="project" />
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+  </component>
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+</module>

+ 51
- 9
src/main/java/io/zipcoder/ArrayDrills.java Dosyayı Görüntüle

@@ -1,5 +1,7 @@
1 1
 package io.zipcoder;
2 2
 
3
+import java.util.Arrays;
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+
3 5
 public class ArrayDrills {
4 6
 
5 7
 
@@ -10,7 +12,11 @@ public class ArrayDrills {
10 12
      *           firstLast(6, [1,2,3]); // Should return false
11 13
      */
12 14
     public Boolean firstLast(Integer value, Integer[] input){
13
-        return null;
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+
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+        if (input[0] == value || input[input.length - 1] == value) {
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+            return true;
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+        }
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+        return false;
14 20
     }
15 21
 
16 22
     /**
@@ -19,7 +25,10 @@ public class ArrayDrills {
19 25
      *           sameFirstLast([1,2,1]); // Should return true
20 26
      */
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     public Boolean sameFirstLast(Integer[] input){
22
-        return null;
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+        if (input [0] == input[input.length - 1]){
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+            return true;
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+        }
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+        else return false;
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     }
24 33
 
25 34
 
@@ -30,7 +39,10 @@ public class ArrayDrills {
30 39
      *           commonEnd([1, 2, 3], [7, 3, 2]); // Should return false
31 40
      */
32 41
     public Boolean commonEnd(Integer[] input1, Integer[] input2){
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-        return null;
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+        if (input1[0] == input2[0] || input1[input1.length -1] == input2[input2.length - 1]) {
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+            return true;
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+        }
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+        else return false;
34 46
     }
35 47
 
36 48
     /**
@@ -39,7 +51,13 @@ public class ArrayDrills {
39 51
      *           rotateLeft([5, 11, 9]); // Should return [11,9,5]
40 52
      */
41 53
     public Integer[] rotateLeft(Integer[] input){
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-        return null;
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+        Integer nextValue = input[0];
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+        for (int i = input.length - 1; i >= 0; i--) {
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+            Integer temp = input[i];
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+            input[i] = nextValue;
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+            nextValue = temp;
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+        }
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+        return input;
43 61
     }
44 62
 
45 63
 
@@ -50,7 +68,16 @@ public class ArrayDrills {
50 68
      *           maxValue([5, 11, 9]); // Should return [11,11,11]
51 69
      */
52 70
     public Integer[] maxValue(Integer[] input){
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-        return null;
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+        Integer maxValue = null;
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+        for (Integer x : input) {
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+            if (maxValue == null || x > maxValue) {
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+                maxValue = x;
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+            }
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+        }
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+        for (int i = 0; i < input.length; i++){
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+            input[i] = maxValue;
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+        }
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+        return input;
54 81
     }
55 82
 
56 83
 
@@ -61,9 +88,17 @@ public class ArrayDrills {
61 88
      *           middleWay([5, 1, 2, 9], [3, 4, 5, 5]); // Should return [3, 9]
62 89
      */
63 90
     public Integer[] middleWay(Integer[] input1, Integer[] input2){
64
-        return null;
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+        Integer[] returnArr = new Integer[2];
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+        returnArr[0] = getMiddleValue(input1);
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+        returnArr[1] = getMiddleValue(input2);
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+        return returnArr;
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+    }
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+    private Integer getMiddleValue(Integer[] input) {
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+        if (input.length % 2 == 0) {
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+            return input[input.length/2] + input[(input.length/2) - 1];
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+        }
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+        else return input[input.length/2];
65 101
     }
66
-
67 102
 
68 103
     /**
69 104
      * Start with 2 int arrays, a and b, each length 2.
@@ -71,7 +106,10 @@ public class ArrayDrills {
71 106
      * Return the array which has the largest sum. In event of a tie, return a.
72 107
      */
73 108
     public Integer[] biggerTwo(Integer[] a, Integer[] b){
74
-        return null;
109
+        if (a[0] + a[1] >= b[0] + b[1]) {
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+            return a;
111
+        }
112
+        else return b;
75 113
     }
76 114
 
77 115
     /**
@@ -81,6 +119,10 @@ public class ArrayDrills {
81 119
      *           midThree([8, 6, 7, 5, 3, 0, 9]); // Should return [7, 5, 3]
82 120
      */
83 121
     public Integer[] midThree(Integer[] nums){
84
-        return null;
122
+        Integer[] midThree = new Integer[3];
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+        midThree[0] = nums[nums.length/2 - 1];
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+        midThree[1] = nums[nums.length/2];
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+        midThree[2] = nums[nums.length/2 + 1];
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+        return midThree;
85 127
     }
86 128
 }

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src/test/java/io/zipcoder/ArrayDrillsTest.java Dosyayı Görüntüle

@@ -179,7 +179,7 @@ public class ArrayDrillsTest {
179 179
     public void biggerTwo3(){
180 180
         Integer[] inputArray1 = {-1 ,20};
181 181
         Integer[] inputArray2 = {2, 15};
182
-        Integer[] expected = {1,20};
182
+        Integer[] expected = {-1,20};
183 183
         Integer[] actual = arrayDrills.biggerTwo(inputArray1, inputArray2);
184 184
         Assert.assertArrayEquals(expected, actual);
185 185
     }

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target/classes/io/zipcoder/ArrayDrills.class Dosyayı Görüntüle


BIN
target/test-classes/io/zipcoder/ArrayDrillsTest.class Dosyayı Görüntüle