From 3523cecba3ab0b90a14fad3f5fe4c2000c3196aa Mon Sep 17 00:00:00 2001
From: Jinyoung Jeong <80400463+jyoung2419@users.noreply.github.com>
Date: Thu, 29 Oct 2026 22:11:13 +0900
Subject: [PATCH 1/2] Create 4092. Binary Digit Score

---
 .../4092. Binary Digit Score"                 | 35 +++++++++++++++++++
 1 file changed, 35 insertions(+)
 create mode 100644 "leetcode3/\354\240\225\354\247\204\354\230\201/4092. Binary Digit Score"

diff --git "a/leetcode3/\354\240\225\354\247\204\354\230\201/4092. Binary Digit Score" "b/leetcode3/\354\240\225\354\247\204\354\230\201/4092. Binary Digit Score"
new file mode 100644
index 00000000..6905125d
--- /dev/null
+++ "b/leetcode3/\354\240\225\354\247\204\354\230\201/4092. Binary Digit Score"	
@@ -0,0 +1,35 @@
+/**
+ * @param {number} a
+ * @param {number} b
+ * @return {number}
+ */
+var calculateScore = function(a, b) {
+    /*
+    - a, b toString 사용해서 이진수 변환
+    - 1의 개수 : s1, s2
+     */
+
+    let score = 0;
+    let s1 = 0;
+    let s2 = 0;
+
+    for (let i = 0; i < a.toString(2).length; i++){
+        if (a.toString(2)[i] == 1){
+            s1++;
+        } 
+    }
+
+    for (let i = 0; i < b.toString(2).length; i++){
+        if (b.toString(2)[i] == 1){
+            s2++;
+        }
+    }
+
+    if (s1 >= s2){
+        score = s1 * s2;
+    } else if (s1 < s2){
+        score = Math.floor(s2 / s1);
+    }
+
+    return score;
+};

From 9610d8a05bac1c922366ef54eb159d80ae8dace9 Mon Sep 17 00:00:00 2001
From: Jinyoung Jeong <80400463+jyoung2419@users.noreply.github.com>
Date: Thu, 29 Oct 2026 22:36:46 +0900
Subject: [PATCH 2/2] Add minLights function for road illumination

Implement function to calculate minimum lights needed to illuminate a road based on given positions.
---
 ...3964. Minimum Lights to Illuminate a Road" | 43 +++++++++++++++++++
 1 file changed, 43 insertions(+)
 create mode 100644 "leetcode3/\354\240\225\354\247\204\354\230\201/3964. Minimum Lights to Illuminate a Road"

diff --git "a/leetcode3/\354\240\225\354\247\204\354\230\201/3964. Minimum Lights to Illuminate a Road" "b/leetcode3/\354\240\225\354\247\204\354\230\201/3964. Minimum Lights to Illuminate a Road"
new file mode 100644
index 00000000..6e73008c
--- /dev/null
+++ "b/leetcode3/\354\240\225\354\247\204\354\230\201/3964. Minimum Lights to Illuminate a Road"	
@@ -0,0 +1,43 @@
+/**
+ * @param {number[]} lights
+ * @return {number}
+ */
+var minLights = function(lights) {
+  /*
+    lights[3] = 2
+    max(0,1) ~ min(4,5)  1 부터 4까지 => 0에 설치
+    lights[i] = 0
+    max(0,0) min(3,0) 
+
+    - 작동하지 않는 전구 위치를 찾아야 함
+    - 다 0인 배열 chk
+    - for문 돌면서 if (lights[i] == v)이면 max(0,i-v)~min(n-1,i+v)까지 체크
+   */
+
+    let n = lights.length
+    let chk = Array(n).fill(0);
+    let cnt = 0;
+
+    for (let i = 0; i < n; i++){
+        if (lights[i] != 0){
+            let v = lights[i];
+            for (let k = Math.max(0, i-v); k <= Math.min(n-1, i+v); k++){
+                chk[k] = 1;
+            }
+        }
+    }
+    
+    for (let i = 0; i < n; i++){
+        if (chk[i] == 0){
+            let j = Math.min(n-1, i+1); 
+            
+            cnt++;
+
+            for (let k = Math.max(0, j-1); k <= Math.min(n-1, j+1); k++){
+                chk[k] = 1;
+            }
+        }
+    }
+
+    return cnt;
+};