feat(5-kyu): kata/a-man-and-his-umbrellas

.github/workflows/progress.yml

@@ -16,7 +16,7 @@ jobs:
         uses: actions/checkout@b4ffde65f46336ab88eb53be808477a3936bae11 # v4.1.1
         with:
           fetch-depth: 0
-          ref: ${{ github.event.pull_request.head.ref }}
+          ref: ${{ github.event.workflow_run.head_branch }}
 
       - name: Update README progress
         run: |

docs/README.md

@@ -1,7 +1,7 @@
 # Codewars Handbook ☕️🚀
 
 [![Views statistics +1 👀](https://img.shields.io/badge/dynamic/xml?color=success&label=views&query=//*[name()=%27text%27][3]&url=https://hits.seeyoufarm.com/api/count/incr/badge.svg?url=https%3A%2F%2Fgithub.com%2FParanoidUser%2Fcodewars-handbook)](https://hits.seeyoufarm.com/api/count/graph/dailyhits.svg?url=https://github.com/ParanoidUser/codewars-handbook)
-[![Completed kata 👌](https://img.shields.io/badge/completed%20kata-68.5%25-red.svg)](https://www.codewars.com/kata/search/java?xids=completed)
+[![Completed kata 👌](https://img.shields.io/badge/completed%20kata-68.6%25-red.svg)](https://www.codewars.com/kata/search/java?xids=completed)
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@@ -25,7 +25,7 @@ slug.
 
 | [1 kyu](/kata/1-kyu/index.md) | [2 kyu](/kata/2-kyu/index.md) | [3 kyu](/kata/3-kyu/index.md) | [4 kyu](/kata/4-kyu/index.md) | [5 kyu](/kata/5-kyu/index.md) | [6 kyu](/kata/6-kyu/index.md) | [7 kyu](/kata/7-kyu/index.md) | [8 kyu](/kata/8-kyu/index.md) | [beta](/kata/beta/index.md) | [retired](/kata/retired/index.md) |
 |:-----------------------------:|:-----------------------------:|:-----------------------------:|:-----------------------------:|:-----------------------------:|:-----------------------------:|:-----------------------------:|:-----------------------------:|:---------------------------:|:---------------------------------:|
-| 0 | 1 | 2 | 26 | 43 | 416 | 559 | 206 | 55 | 79 |
+| 0 | 1 | 2 | 26 | 44 | 416 | 559 | 206 | 55 | 79 |
 
 **Note:** The source code is written in Java 17 and may use language features that are incompatible
 with Java 8, 11.

kata/5-kyu/a-man-and-his-umbrellas/README.md

@@ -0,0 +1,72 @@
+# [A Man and his Umbrellas](https://www.codewars.com/kata/a-man-and-his-umbrellas "https://www.codewars.com/kata/58298e19c983caf4ba000c8d")
+
+Each morning a man walks to work, and each afternoon he walks back home.
+
+If it is raining in the morning, and he has an umbrella at home, he takes an umbrella for the journey, so he doesn't get
+wet, and stores it at work. Likewise, if it is raining in the afternoon, and he has an umbrella at work, he takes an
+umbrella for the journey home.
+
+----------------------
+
+Given an array of the weather conditions, **your task** is to work out the **minimum number of umbrellas** he needs to
+start with in order that he never gets wet. He can start with some umbrellas at home and some at work, but the **output
+** is a single integer, the minimum total number.
+
+The **input** is an array/list of consecutive half-day weather forecasts. So, e.g. the first value is the 1st day's
+morning weather and the second value is the 1st day's afternoon weather. The options are:
+
+Without umbrella:
+
+* "clear",
+* "sunny",
+* "cloudy",
+* "overcast",
+* "windy".
+
+With umbrella:
+
+* "rainy",
+* "thunderstorms".
+
+e.g. for three days, 6 values:
+
+```
+weather = ["rainy", "cloudy", "sunny", "sunny", "cloudy", "thunderstorms"]
+```
+
+**N.B.** He never takes an umbrella if it is not raining.
+
+#### Examples:
+
+* ```
+  minUmbrellas(["rainy", "clear", "rainy", "cloudy"])
+  ```
+
+  should return 2
+
+  Because on the first morning, he needs an umbrella to take, and he leaves it at work.
+  So on the second morning, he needs a second umbrella.
+
+* ```
+  minUmbrellas(["sunny", "windy", "sunny", "clear"])
+  ```
+  should return 0
+
+  Because it doesn't rain at all
+
+* ```
+  minUmbrellas(["rainy", "rainy", "rainy", "rainy", "thunderstorms", "rainy"])
+  ```
+  should return 1
+
+  Because he only needs 1 umbrella which he takes on every journey.
+
+#### Note for Java users
+
+The following enum is preloaded for you:
+
+```
+public enum Weather {
+    CLEAR, SUNNY, CLOUDY, RAINY, OVERCAST, WINDY, THUNDERSTORMS;
+}
+```

kata/5-kyu/a-man-and-his-umbrellas/main/Umbrella.java

@@ -0,0 +1,13 @@
+interface Umbrella {
+  static int minUmbrellas(Weather... forecast) {
+    int atHome = 0;
+    int atWork = 0;
+    for (Weather weather : forecast) {
+      int umbrella = weather == Weather.RAINY || weather == Weather.THUNDERSTORMS ? 1 : 0;
+      int journey = Math.max(atWork - umbrella, 0);
+      atWork = atHome + umbrella;
+      atHome = journey;
+    }
+    return atHome + atWork;
+  }
+}

kata/5-kyu/a-man-and-his-umbrellas/main/Weather.java

@@ -0,0 +1,3 @@
+enum Weather {
+  CLEAR, SUNNY, CLOUDY, RAINY, OVERCAST, WINDY, THUNDERSTORMS;
+}

kata/5-kyu/a-man-and-his-umbrellas/test/UmbrellaTest.java

@@ -0,0 +1,12 @@
+import static org.junit.jupiter.api.Assertions.*;
+
+import org.junit.jupiter.api.Test;
+
+class UmbrellaTest {
+  @Test
+  void sample() {
+    assertEquals(0, Umbrella.minUmbrellas(Weather.CLOUDY, Weather.WINDY, Weather.SUNNY));
+    assertEquals(1, Umbrella.minUmbrellas(Weather.RAINY, Weather.RAINY, Weather.RAINY, Weather.RAINY));
+    assertEquals(2, Umbrella.minUmbrellas(Weather.OVERCAST, Weather.RAINY, Weather.CLEAR, Weather.THUNDERSTORMS));
+  }
+}

kata/5-kyu/index.md

@@ -1,4 +1,5 @@
 # A
+- [A Man and his Umbrellas](a-man-and-his-umbrellas)
 - [A Simple Music Encoder](a-simple-music-encoder)
 - [Airport Arrivals/Departures - #1](airport-arrivals-slash-departures-number-1)
 # B