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Commit bdc150b

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412: Fizz Buzz
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‎README.md

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@@ -21,6 +21,7 @@ My solutions to LeetCode problems in Kotlin.
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| [186](https://leetcode.com/problems/reverse-words-in-a-string-ii/) | [Reverse Words in a String II](src/main/kotlin/com/schmoczer/leetcode/_0186/ReverseWordsInStringInPlace.kt) | Medium |
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| [206](https://leetcode.com/problems/reverse-linked-list/) | [Reverse Linked List](src/main/kotlin/com/schmoczer/leetcode/_0206/ReverseLinkedList.kt) | Easy |
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| [344](https://leetcode.com/problems/reverse-string/) | [Reverse String](src/main/kotlin/com/schmoczer/leetcode/_0344/ReverseString.kt) | Easy |
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| [412](https://leetcode.com/problems/fizz-buzz/) | [Fizz Buzz](src/main/kotlin/com/schmoczer/leetcode/_0412/FizzBuzz.kt) | Easy |
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| [773](https://leetcode.com/problems/sliding-puzzle/) | [Sliding Puzzle](src/main/kotlin/com/schmoczer/leetcode/_0773/SlidingPuzzle.kt) | Hard |
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| [796](https://leetcode.com/problems/rotate-string/) | [Rotate String](src/main/kotlin/com/schmoczer/leetcode/_0796/RotateString.kt) | Easy |
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| [1480](https://leetcode.com/problems/running-sum-of-1d-array/) | [Running Sum of 1d Array](src/main/kotlin/com/schmoczer/leetcode/_1480/RunningSumOf1dArray.kt) | Easy |
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package com.schmoczer.leetcode._0412
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class FizzBuzz {
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// Runtime 1ms Beats 100.00%
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fun fizzBuzz(n: Int): List<String> {
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val answer = mutableListOf<String>()
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for (index in 1..n) {
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answer.add(
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when {
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index % 3 == 0 && index % 5 == 0 -> "FizzBuzz"
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index % 3 == 0 -> "Fizz"
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index % 5 == 0 -> "Buzz"
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else -> "$index"
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},
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)
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}
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return answer
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}
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}
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# Fizz Buzz
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Given an integer `n`, return a string array `answer` (1-indexed) where:
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- `answer[i] == "FizzBuzz"` if `i` is divisible by `3` and `5`.
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- `answer[i] == "Fizz"` if `i` is divisible by `3`.
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- `answer[i] == "Buzz"` if `i` is divisible by `5`.
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- `answer[i] == i` (as a string) if none of the above conditions are true.
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Example 1:
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> Input: n = 3
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>
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> Output: ["1","2","Fizz"]
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Example 2:
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> Input: n = 5
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>
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> Output: ["1","2","Fizz","4","Buzz"]
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Example 3:
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> Input: n = 15
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>
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> Output: ["1","2","Fizz","4","Buzz","Fizz","7","8","Fizz","Buzz","11","Fizz","13","14","FizzBuzz"]
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Constraints:
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- `1 <= n <= 10^4`
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package com.schmoczer.leetcode._0412
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import org.junit.jupiter.api.BeforeEach
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import kotlin.test.Test
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import kotlin.test.assertContentEquals
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class FizzBuzzTest {
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private lateinit var sut: FizzBuzz
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@BeforeEach
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fun setUp() {
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sut = FizzBuzz()
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}
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@Test
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fun `fizz buzz for 3`() {
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val input = 3
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val expected = listOf("1", "2", "Fizz")
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val result = sut.fizzBuzz(input)
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assertContentEquals(expected, result)
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}
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@Test
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fun `fizz buzz for 5`() {
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val input = 5
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val expected = listOf("1", "2", "Fizz", "4", "Buzz")
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val result = sut.fizzBuzz(input)
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assertContentEquals(expected, result)
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}
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@Test
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fun `fizz buzz for 15`() {
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val input = 15
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val expected = listOf("1", "2", "Fizz", "4", "Buzz", "Fizz", "7", "8", "Fizz", "Buzz", "11", "Fizz", "13", "14", "FizzBuzz")
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val result = sut.fizzBuzz(input)
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assertContentEquals(expected, result)
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}
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}

‎src/test/kotlin/com/schmoczer/leetcode/_1672/RichestCustomerWealthTest.kt

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import kotlin.test.Test
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class RichestCustomerWealthTest {
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private lateinit var richestCustomerWealth: RichestCustomerWealth
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private lateinit var sut: RichestCustomerWealth
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@BeforeEach
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fun setUp() {
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richestCustomerWealth = RichestCustomerWealth()
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sut = RichestCustomerWealth()
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}
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@Test
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fun `given two accounts 1,2,3 and 3,2,1 then richest customer wealth is 6`() {
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val input = arrayOf(intArrayOf(1, 2, 3), intArrayOf(3, 2, 1))
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val expected = 6
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val result = richestCustomerWealth.maximumWealth(input)
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val result = sut.maximumWealth(input)
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assertEquals(expected, result)
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}
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val input = arrayOf(intArrayOf(1, 5), intArrayOf(7, 3), intArrayOf(3, 5))
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val expected = 10
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val result = richestCustomerWealth.maximumWealth(input)
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val result = sut.maximumWealth(input)
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assertEquals(expected, result)
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}
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val input = arrayOf(intArrayOf(2, 8, 7), intArrayOf(7, 1, 3), intArrayOf(1, 9, 5))
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val expected = 17
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val result = richestCustomerWealth.maximumWealth(input)
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val result = sut.maximumWealth(input)
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assertEquals(expected, result)
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}

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