팰린드롬 만들기 (#61)

Author: asqwklop12

pr/팰린드롬 만들기/Main.java

@@ -0,0 +1,41 @@
+import java.io.*;
+import java.util.*;
+
+public class Main {
+    static String str;
+    static int min = Integer.MAX_VALUE;
+
+    public static void main(String[] args) throws IOException {
+        Scanner sc = new Scanner(System.in);
+        str = sc.next();
+        solve();
+
+    }
+
+    public static void solve() {
+        for (int i = 0; i < str.length(); i++) {
+            String left = str.substring(0, i);
+            String right = str.substring(i);
+            action(left, right);
+        }
+        System.out.println(min);
+    }
+
+    public static void action(String left, String right) {
+        // 일단 right가 팰린드롬이어야 한다.
+        if (isPalindrom(right)) {
+            min = Math.min(min, left.length() * 2 + right.length());
+        }
+    }
+
+    public static boolean isPalindrom(String right) {
+        int mid = right.length() / 2;
+        for (int i = 0; i < mid; i++) {
+            if (right.charAt(i) != right.charAt(right.length() - 1 - i)) {
+                return false;
+            }
+        }
+        return true;
+    }
+
+}