tp8 step 2 solution

ctruchi · ctruchi · commit 6020c7fb44a5 · 2025-02-14T09:06:34.000+04:00
diff --git a/tp8/src/main/kotlin/fmt/kotlin/fundamentals/Cellar.kt b/tp8/src/main/kotlin/fmt/kotlin/fundamentals/Cellar.kt
@@ -4,7 +4,9 @@ data class Vineyard(
     val cellars: List<Cellar>
 ) {
 
-    fun countBottles() = emptyMap<String, Int>()
+    fun countBottles() = cellars.fold(emptyMap<String, Int>()) { res, cellar ->
+        res.merge(cellar.bottles.groupingBy { it.name }.eachCount()) { n, m -> n + m }
+    }
 }
 
 data class Cellar(

Original file line number	Diff line number	Diff line change
`@@ -4,7 +4,9 @@ data class Vineyard(`
`4`	`4`	`val cellars: List<Cellar>`
`5`	`5`	`) {`
`6`	`6`
`7`		`- fun countBottles() = emptyMap<String, Int>()`
	`7`	`+ fun countBottles() = cellars.fold(emptyMap<String, Int>()) { res, cellar ->`
	`8`	`+ res.merge(cellar.bottles.groupingBy { it.name }.eachCount()) { n, m -> n + m }`
	`9`	`+ }`
`8`	`10`	`}`
`9`	`11`
`10`	`12`	`data class Cellar(`