diff --git a/kotlin/grade-school/.gradle/3.5/file-changes/last-build.bin b/kotlin/grade-school/.gradle/3.5/file-changes/last-build.bin
new file mode 100644
index 0000000..f76dd23
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diff --git a/kotlin/grade-school/.gradle/3.5/taskHistory/taskHistory.lock b/kotlin/grade-school/.gradle/3.5/taskHistory/taskHistory.lock
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diff --git a/kotlin/grade-school/.gradle/buildOutputCleanup/built.bin b/kotlin/grade-school/.gradle/buildOutputCleanup/built.bin
new file mode 100644
index 0000000..e69de29
diff --git a/kotlin/grade-school/.gradle/buildOutputCleanup/cache.properties b/kotlin/grade-school/.gradle/buildOutputCleanup/cache.properties
new file mode 100644
index 0000000..a92e1f9
--- /dev/null
+++ b/kotlin/grade-school/.gradle/buildOutputCleanup/cache.properties
@@ -0,0 +1,2 @@
+#Mon Jun 05 10:37:40 EDT 2017
+gradle.version=3.5
diff --git a/kotlin/grade-school/.gradle/buildOutputCleanup/cache.properties.lock b/kotlin/grade-school/.gradle/buildOutputCleanup/cache.properties.lock
new file mode 100644
index 0000000..40fdece
--- /dev/null
+++ b/kotlin/grade-school/.gradle/buildOutputCleanup/cache.properties.lock
@@ -0,0 +1 @@
+
\ No newline at end of file
diff --git a/kotlin/grade-school/.idea/compiler.xml b/kotlin/grade-school/.idea/compiler.xml
new file mode 100644
index 0000000..b4894a7
--- /dev/null
+++ b/kotlin/grade-school/.idea/compiler.xml
@@ -0,0 +1,9 @@
+
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\ No newline at end of file
diff --git a/kotlin/grade-school/.idea/gradle.xml b/kotlin/grade-school/.idea/gradle.xml
new file mode 100644
index 0000000..346dc7e
--- /dev/null
+++ b/kotlin/grade-school/.idea/gradle.xml
@@ -0,0 +1,19 @@
+
+
+
+
+
+
\ No newline at end of file
diff --git a/kotlin/grade-school/.idea/libraries/Gradle__junit_junit_4_12.xml b/kotlin/grade-school/.idea/libraries/Gradle__junit_junit_4_12.xml
new file mode 100644
index 0000000..04c10dd
--- /dev/null
+++ b/kotlin/grade-school/.idea/libraries/Gradle__junit_junit_4_12.xml
@@ -0,0 +1,11 @@
+
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diff --git a/kotlin/grade-school/.idea/libraries/Gradle__org_hamcrest_hamcrest_core_1_3.xml b/kotlin/grade-school/.idea/libraries/Gradle__org_hamcrest_hamcrest_core_1_3.xml
new file mode 100644
index 0000000..8262f72
--- /dev/null
+++ b/kotlin/grade-school/.idea/libraries/Gradle__org_hamcrest_hamcrest_core_1_3.xml
@@ -0,0 +1,11 @@
+
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\ No newline at end of file
diff --git a/kotlin/grade-school/.idea/libraries/Gradle__org_jetbrains_annotations_13_0.xml b/kotlin/grade-school/.idea/libraries/Gradle__org_jetbrains_annotations_13_0.xml
new file mode 100644
index 0000000..4f32fde
--- /dev/null
+++ b/kotlin/grade-school/.idea/libraries/Gradle__org_jetbrains_annotations_13_0.xml
@@ -0,0 +1,11 @@
+
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\ No newline at end of file
diff --git a/kotlin/grade-school/.idea/libraries/Gradle__org_jetbrains_kotlin_kotlin_stdlib_1_1_1.xml b/kotlin/grade-school/.idea/libraries/Gradle__org_jetbrains_kotlin_kotlin_stdlib_1_1_1.xml
new file mode 100644
index 0000000..7b6f562
--- /dev/null
+++ b/kotlin/grade-school/.idea/libraries/Gradle__org_jetbrains_kotlin_kotlin_stdlib_1_1_1.xml
@@ -0,0 +1,11 @@
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\ No newline at end of file
diff --git a/kotlin/grade-school/.idea/libraries/Gradle__org_jetbrains_kotlin_kotlin_test_1_1_1.xml b/kotlin/grade-school/.idea/libraries/Gradle__org_jetbrains_kotlin_kotlin_test_1_1_1.xml
new file mode 100644
index 0000000..1720158
--- /dev/null
+++ b/kotlin/grade-school/.idea/libraries/Gradle__org_jetbrains_kotlin_kotlin_test_1_1_1.xml
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diff --git a/kotlin/grade-school/.idea/libraries/Gradle__org_jetbrains_kotlin_kotlin_test_junit_1_1_1.xml b/kotlin/grade-school/.idea/libraries/Gradle__org_jetbrains_kotlin_kotlin_test_junit_1_1_1.xml
new file mode 100644
index 0000000..21c5d19
--- /dev/null
+++ b/kotlin/grade-school/.idea/libraries/Gradle__org_jetbrains_kotlin_kotlin_test_junit_1_1_1.xml
@@ -0,0 +1,11 @@
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diff --git a/kotlin/grade-school/.idea/misc.xml b/kotlin/grade-school/.idea/misc.xml
new file mode 100644
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--- /dev/null
+++ b/kotlin/grade-school/.idea/misc.xml
@@ -0,0 +1,22 @@
+
+
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+ 1.8
+
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\ No newline at end of file
diff --git a/kotlin/grade-school/.idea/modules.xml b/kotlin/grade-school/.idea/modules.xml
new file mode 100644
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+++ b/kotlin/grade-school/.idea/modules.xml
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diff --git a/kotlin/grade-school/.idea/modules/grade-school_main.iml b/kotlin/grade-school/.idea/modules/grade-school_main.iml
new file mode 100644
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--- /dev/null
+++ b/kotlin/grade-school/.idea/modules/grade-school_main.iml
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diff --git a/kotlin/grade-school/.idea/modules/grade-school_test.iml b/kotlin/grade-school/.idea/modules/grade-school_test.iml
new file mode 100644
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--- /dev/null
+++ b/kotlin/grade-school/.idea/modules/grade-school_test.iml
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diff --git a/kotlin/grade-school/.idea/workspace.xml b/kotlin/grade-school/.idea/workspace.xml
new file mode 100644
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--- /dev/null
+++ b/kotlin/grade-school/.idea/workspace.xml
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+ 1496673458047
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\ No newline at end of file
diff --git a/kotlin/grade-school/README.md b/kotlin/grade-school/README.md
new file mode 100644
index 0000000..57e56e4
--- /dev/null
+++ b/kotlin/grade-school/README.md
@@ -0,0 +1,44 @@
+# Grade School
+
+Given students' names along with the grade that they are in, create a roster
+for the school.
+
+In the end, you should be able to:
+
+- Add a student's name to the roster for a grade
+ - "Add Jim to grade 2."
+ - "OK."
+- Get a list of all students enrolled in a grade
+ - "Which students are in grade 2?"
+ - "We've only got Jim just now."
+- Get a sorted list of all students in all grades. Grades should sort
+ as 1, 2, 3, etc., and students within a grade should be sorted
+ alphabetically by name.
+ - "Who all is enrolled in school right now?"
+ - "Grade 1: Anna, Barb, and Charlie. Grade 2: Alex, Peter, and Zoe.
+ Grade 3…"
+
+Note that all our students only have one name. (It's a small town, what
+do you want?)
+
+
+## For bonus points
+
+Did you get the tests passing and the code clean? If you want to, these
+are some additional things you could try:
+
+- If you're working in a language with mutable data structures and your
+ implementation allows outside code to mutate the school's internal DB
+ directly, see if you can prevent this. Feel free to introduce additional
+ tests.
+
+Then please share your thoughts in a comment on the submission. Did this
+experiment make the code better? Worse? Did you learn anything from it?
+
+## Source
+
+A pairing session with Phil Battos at gSchool [http://gschool.it](http://gschool.it)
+
+## Submitting Incomplete Solutions
+It's possible to submit an incomplete solution so you can see how others have completed the exercise.
+
diff --git a/kotlin/grade-school/build.gradle b/kotlin/grade-school/build.gradle
new file mode 100644
index 0000000..16c36c0
--- /dev/null
+++ b/kotlin/grade-school/build.gradle
@@ -0,0 +1,28 @@
+buildscript {
+ ext.kotlin_version = '1.1.1'
+ repositories {
+ mavenCentral()
+ }
+ dependencies {
+ classpath "org.jetbrains.kotlin:kotlin-gradle-plugin:$kotlin_version"
+ }
+}
+
+apply plugin: 'kotlin'
+
+repositories {
+ mavenCentral()
+}
+
+dependencies {
+ compile "org.jetbrains.kotlin:kotlin-stdlib:$kotlin_version"
+
+ testCompile 'junit:junit:4.12'
+ testCompile "org.jetbrains.kotlin:kotlin-test-junit:$kotlin_version"
+}
+test {
+ testLogging {
+ exceptionFormat = 'full'
+ events = ["passed", "failed", "skipped"]
+ }
+}
diff --git a/kotlin/grade-school/build/classes/main/School$sort$returnDatabase$1.class b/kotlin/grade-school/build/classes/main/School$sort$returnDatabase$1.class
new file mode 100644
index 0000000..acad2e2
Binary files /dev/null and b/kotlin/grade-school/build/classes/main/School$sort$returnDatabase$1.class differ
diff --git a/kotlin/grade-school/build/classes/main/School.class b/kotlin/grade-school/build/classes/main/School.class
new file mode 100644
index 0000000..1e395d0
Binary files /dev/null and b/kotlin/grade-school/build/classes/main/School.class differ
diff --git a/kotlin/grade-school/build/classes/test/SchoolTest.class b/kotlin/grade-school/build/classes/test/SchoolTest.class
new file mode 100644
index 0000000..c81ca8e
Binary files /dev/null and b/kotlin/grade-school/build/classes/test/SchoolTest.class differ
diff --git a/kotlin/grade-school/build/kotlin-build/caches/version.txt b/kotlin/grade-school/build/kotlin-build/caches/version.txt
new file mode 100644
index 0000000..01aabac
--- /dev/null
+++ b/kotlin/grade-school/build/kotlin-build/caches/version.txt
@@ -0,0 +1 @@
+11001
\ No newline at end of file
diff --git a/kotlin/grade-school/grade-school.iml b/kotlin/grade-school/grade-school.iml
new file mode 100644
index 0000000..f07c5a7
--- /dev/null
+++ b/kotlin/grade-school/grade-school.iml
@@ -0,0 +1,12 @@
+
+
+
+
+
+
+
+
+
+
+
+
\ No newline at end of file
diff --git a/kotlin/grade-school/src/main/kotlin/.keep b/kotlin/grade-school/src/main/kotlin/.keep
new file mode 100644
index 0000000..e69de29
diff --git a/kotlin/grade-school/src/main/kotlin/School.kt b/kotlin/grade-school/src/main/kotlin/School.kt
new file mode 100644
index 0000000..1003927
--- /dev/null
+++ b/kotlin/grade-school/src/main/kotlin/School.kt
@@ -0,0 +1,26 @@
+class School {
+ private var database: MutableMap> = emptyMap>().toMutableMap()
+ fun db(): Map>{
+ return database
+ }
+
+ fun sort(): Map>{
+ val returnDatabase = database.toSortedMap(Comparator{o1, o2 -> o1 - o2 })
+ // Super shitty and hacky but... ehhh
+ for (i in returnDatabase.keys){
+ returnDatabase.put(i, returnDatabase.getOrDefault(i, emptyList()).sorted())
+ }
+ return returnDatabase
+ }
+
+ fun add(name: String, grade: Int){
+ val gradeList: MutableList = this.database.getOrDefault(grade, emptyList()).toMutableList()
+ gradeList.add(name)
+ this.database.put(grade, gradeList)
+ }
+
+ fun grade(grade: Int): List{
+ return this.database.getOrDefault(grade, emptyList())
+ }
+
+}
\ No newline at end of file
diff --git a/kotlin/grade-school/src/test/kotlin/SchoolTest.kt b/kotlin/grade-school/src/test/kotlin/SchoolTest.kt
new file mode 100644
index 0000000..591ac57
--- /dev/null
+++ b/kotlin/grade-school/src/test/kotlin/SchoolTest.kt
@@ -0,0 +1,85 @@
+import org.junit.Before
+import org.junit.Test
+import org.junit.Ignore
+import kotlin.test.assertEquals
+import kotlin.test.assertTrue
+
+class SchoolTest {
+
+ private lateinit var school: School
+
+ @Before
+ fun beforeTest() {
+ school = School()
+ }
+
+
+ @Test
+ fun startsWithNoStudents() {
+ assertTrue(school.db().isEmpty())
+ }
+
+
+ @Test
+ fun addsStudents() {
+ school.add("Aimee", 2)
+
+ val expected = mapOf(2 to listOf("Aimee"))
+ assertEquals(expected, school.db())
+ }
+
+
+ @Test
+ fun addsMoreStudentsInSameGrade() {
+ val grade = 2
+ school.add("James", grade)
+ school.add("Blair", grade)
+ school.add("Paul", grade)
+
+ val expected = mapOf(2 to listOf("James", "Blair", "Paul"))
+ assertEquals(expected, school.db())
+ }
+
+
+ @Test
+ fun addsStudentsInMultipleGrades() {
+ school.add("Chelsea", 3)
+ school.add("Logan", 7)
+
+ val expected = mapOf(3 to listOf("Chelsea"), 7 to listOf("Logan"))
+ assertEquals(expected, school.db())
+ }
+
+
+ @Test
+ fun getsStudentsInAGrade() {
+ school.add("Franklin", 5)
+ school.add("Bradley", 5)
+ school.add("Jeff", 1)
+
+ val expected = mapOf(5 to listOf("Franklin", "Bradley"), 1 to listOf("Jeff"))
+ assertEquals(expected, school.db())
+ }
+
+
+ @Test
+ fun getsStudentsInEmptyGrade() {
+ assertTrue(school.grade(1).isEmpty())
+ }
+
+
+ @Test
+ fun sortsSchool() {
+ school.add("Jennifer", 4)
+ school.add("Kareem", 6)
+ school.add("Christopher", 4)
+ school.add("Kyle", 3)
+
+ val expected = mapOf(6 to listOf("Kareem"), 4 to listOf("Christopher", "Jennifer"), 3 to listOf("Kyle"))
+ val sortedClasses = school.sort()
+ assertEquals(expected, sortedClasses)
+ assertEquals(listOf(3, 4, 6), sortedClasses.keys.toList(), "Grades not sorted in ascending order")
+
+ assertEquals(listOf("Jennifer", "Christopher"), school.db().get(4), "Original student order should not be mutated")
+ }
+}
diff --git a/kotlin/phone-number/.idea/workspace.xml b/kotlin/phone-number/.idea/workspace.xml
index afa3928..1aa1257 100644
--- a/kotlin/phone-number/.idea/workspace.xml
+++ b/kotlin/phone-number/.idea/workspace.xml
@@ -484,7 +484,7 @@
-
+
@@ -969,7 +969,7 @@
-
+