kt: add «1652. Defuse the Bomb»

URL:	https://leetcode.com/problems/defuse-the-bomb/
Signed-off-by: Matej Focko <me@mfocko.xyz>

kt/defuse-the-bomb.kt

@@ -0,0 +1,36 @@
+class Solution {
+    fun decrypt(
+        code: IntArray,
+        k: Int,
+    ): IntArray {
+        val decrypted = IntArray(code.size)
+        if (k == 0) {
+            return decrypted
+        }
+
+        var i = 1
+        if (k < 0) {
+            i = code.size + k
+        }
+        val kAbs = listOf(k, -k).max()
+
+        var runningSum = 0
+        for (j in i..<i + kAbs) {
+            runningSum += code[j % code.size]
+        }
+
+        for (j in decrypted.indices) {
+            decrypted[j] = runningSum
+
+            runningSum = (
+                runningSum -
+                    code[i % code.size] +
+                    code[(i + kAbs) % code.size]
+            )
+
+            i += 1
+        }
+
+        return decrypted
+    }
+}