20250809 baekjoon

code_study/Baekjoon/swift/1074.swift

@@ -0,0 +1,43 @@
+import Foundation
+
+if  let input = readLine(),
+    let nums:[Int] = {
+        let temp = input.split(separator: " ").compactMap({Int($0)})
+        return temp.count == 3 ? temp : nil
+    }(){
+    var (N, r, c) = (nums[0],nums[1],nums[2])
+
+    var n = N
+    var result = 0
+
+    while n > 0 {
+        let half = Int(pow(2.0, Double(n-1)))
+        let quatorArea = half * half
+
+        switch (r,c)
+        {
+            case (0..<half, 0..<half) :
+                break
+            case (0..<half, half..<2*half) :
+                result += quatorArea
+                c -= half
+            case (half..<2*half, 0..<half) :
+                result += quatorArea*2
+                r -= half
+            case (half..<2*half, half..<2*half) :
+                result += quatorArea*3
+                c -= half
+                r -= half
+            default :
+                break
+        }
+
+        n -= 1
+    }
+
+    print(result)
+
+}
+else{
+    print("error")
+}