feat(5-kyu): kata/pete-the-baker (#565)

Author: ParanoidUser

docs/README.md

@@ -1,7 +1,7 @@
 # Codewars Handbook ☕️🚀
 
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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 | 46 | 426 | 569 | 209 | 56 | 79 |
+| 0 | 1 | 2 | 26 | 47 | 426 | 569 | 209 | 56 | 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/index.md

@@ -47,6 +47,7 @@
 # P
 - [PaginationHelper](paginationhelper)
 - [Perimeter of squares in a rectangle](perimeter-of-squares-in-a-rectangle)
+- [Pete, the baker](pete-the-baker)
 - [Pick peaks](pick-peaks)
 - [Primes in numbers](primes-in-numbers)
 - [Product of consecutive Fib numbers](product-of-consecutive-fib-numbers)

kata/5-kyu/pete-the-baker/README.md

@@ -0,0 +1,17 @@
+# [Pete, the baker](https://www.codewars.com/kata/pete-the-baker "https://www.codewars.com/kata/525c65e51bf619685c000059")
+
+Pete likes to bake some cakes. He has some recipes and ingredients. Unfortunately he is not good in maths. Can you help
+him find out, how many cakes he could bake considering his recipes?
+
+Write a function `cakes()`, which takes the recipe (object) and the available ingredients (also an object) and returns
+the maximum number of cakes Pete can bake (integer). For simplicity there are no units for the amounts (e.g. 1 lb of
+flour or 200 g of sugar are simply 1 or 200). Ingredients that are not present in the objects, can be considered as 0.
+
+Examples:
+
+```
+// must return 2
+cakes({flour: 500, sugar: 200, eggs: 1}, {flour: 1200, sugar: 1200, eggs: 5, milk: 200});
+// must return 0
+cakes({apples: 3, flour: 300, sugar: 150, milk: 100, oil: 100}, {sugar: 500, flour: 2000, milk: 2000}); 
+```

kata/5-kyu/pete-the-baker/main/PeteBaker.java

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+import java.util.Map;
+
+interface PeteBaker {
+  static int cakes(Map<String, Integer> recipe, Map<String, Integer> ings) {
+    return recipe.entrySet().stream().mapToInt(e -> ings.getOrDefault(e.getKey(), 0) / e.getValue()).min().orElse(0);
+  }
+}

kata/5-kyu/pete-the-baker/test/SolutionTest.java

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+import org.junit.jupiter.api.Test;
+
+import static org.junit.jupiter.api.Assertions.assertEquals;
+
+import java.util.Map;
+
+class SolutionTest {
+  @Test
+  void sample() {
+    assertEquals(2, PeteBaker.cakes(
+        Map.of("flour", 500, "sugar", 200, "eggs", 1),
+        Map.of("flour", 1200, "sugar", 1200, "eggs", 5, "milk", 200)));
+
+    assertEquals(0, PeteBaker.cakes(
+        Map.of("flour", 500, "sugar", 200, "eggs", 1, "cinnamon", 300),
+        Map.of("flour", 1200, "sugar", 1200, "eggs", 5, "milk", 200)));
+  }
+}