complete 12015.kt 12738.kt 14626.kt 33985.kt 34029.kt 34060.kt 9252.py

storage/zeta/kt/completed/14626.kt

@@ -0,0 +1,44 @@
+fun getMissingISBN(numbers: List<Int>, missingIndex: Int): Int {
+    val check = numbers.last()
+
+    val others = (numbers.slice(0 until 12).withIndex().sumOf {
+        if (it.index % 2 == 0) {
+            it.value
+        } else {
+            3 * it.value
+        }
+    } + check) % 10
+    val res = if (missingIndex % 2 == 0) {
+        if (others == 0) {
+            0
+        } else {
+            10 - others
+        }
+    } else {
+        if (others == 0) {
+            0
+        } else {
+            if ((10 - others) % 3 == 0) {
+                (10 - others) / 3
+            } else if ((20 - others) % 3 == 0) {
+                (20 - others) / 3
+            } else {
+                (30 - others) / 3
+            }
+        }
+    }
+    return res
+}
+
+fun main() {
+    var missingIndex = -1
+    val numbers = readln().trim().withIndex().map {
+        if (it.value == '*') {
+            missingIndex = it.index
+            0
+        } else {
+            it.value.digitToInt()
+        }
+    }
+    println(getMissingISBN(numbers, missingIndex))
+}