kt: add «2275. Largest Combination With Bitwise AND Greater Than Zero»

URL:	https://leetcode.com/problems/largest-combination-with-bitwise-and-greater-than-zero/
Signed-off-by: Matej Focko <me@mfocko.xyz>

kt/largest-combination-with-bitwise-and-greater-than-zero.kt

@@ -0,0 +1,22 @@
+class Solution {
+    private val maxBits = 24
+
+    private data class State(val counters: IntArray) {
+        fun update(num: Int): State {
+            counters.indices.fold(num) { num, i ->
+                if (num % 2 != 0) {
+                    counters[i] += 1
+                }
+
+                num.shr(1)
+            }
+
+            return this
+        }
+    }
+
+    fun largestCombination(candidates: IntArray): Int =
+        candidates.fold(State(IntArray(maxBits))) { acc, it ->
+            acc.update(it)
+        }.counters.max()
+}