diff --git "a/lkhyun/202510/21 PGM Lv2 n^2 \353\260\260\354\227\264 \354\236\220\353\245\264\352\270\260.md" "b/lkhyun/202510/21 PGM Lv2 n^2 \353\260\260\354\227\264 \354\236\220\353\245\264\352\270\260.md"
new file mode 100644
index 00000000..2485529a
--- /dev/null
+++ "b/lkhyun/202510/21 PGM Lv2 n^2 \353\260\260\354\227\264 \354\236\220\353\245\264\352\270\260.md"	
@@ -0,0 +1,19 @@
+```java
+class Solution {
+    public long[] solution(int n, long left, long right) {
+        long[] answer = new long[(int)(right-left+1)];
+        
+        int idx = 0;
+        for(long i = left; i<=right; i++,idx++){
+            long ii = i/n;
+            long jj = i%n;
+            if(ii>=jj){
+                answer[idx] = ii+1;
+            }else{
+                answer[idx] = jj+1;
+            }
+        }
+        return answer;
+    }
+}
+```