diff --git "a/leetcode3/\354\235\264\354\247\204\355\235\254/4092. Binary Digit Score.java" "b/leetcode3/\354\235\264\354\247\204\355\235\254/4092. Binary Digit Score.java"
new file mode 100644
index 00000000..152fe522
--- /dev/null
+++ "b/leetcode3/\354\235\264\354\247\204\355\235\254/4092. Binary Digit Score.java"	
@@ -0,0 +1,29 @@
+/*
+
+1. 아이디어 : 2진법으로 변환 후 1의 개수 세기
+
+2. 시간복잡도 : O(logN)
+
+3. 자료구조/알고리즘 : 진법변환
+
+ */
+
+class Solution {
+    public int calculateScore(int a, int b) {
+        int s1 = countBit(a);
+        int s2 = countBit(b);
+
+        if(s1>=s2) return s1*s2;
+        return s2/s1;
+    }
+
+    private int countBit(int num) {
+        int cnt = 0;
+        while(num>0) {
+            if(num%2==1) cnt++;
+            num/=2; 
+        }
+
+        return cnt;
+    }
+}
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