diff --git "a/leetcode3/\355\231\251\354\235\200\354\247\200/3833. Count Dominant Indices.js" "b/leetcode3/\355\231\251\354\235\200\354\247\200/3833. Count Dominant Indices.js"
new file mode 100644
index 00000000..11dce669
--- /dev/null
+++ "b/leetcode3/\355\231\251\354\235\200\354\247\200/3833. Count Dominant Indices.js"	
@@ -0,0 +1,17 @@
+/**
+ * @param {number[]} nums
+ * @return {number}
+ */
+var dominantIndices = function (nums) {
+  const len = nums.length;
+
+  let count = 0;
+  let sum = nums[len - 1];
+
+  for (let i = len - 2; i >= 0; i--) {
+    if (nums[i] > sum / (len - i - 1)) count++;
+    sum += nums[i];
+  }
+
+  return count;
+};
diff --git "a/leetcode3/\355\231\251\354\235\200\354\247\200/877. Stone Game.js" "b/leetcode3/\355\231\251\354\235\200\354\247\200/877. Stone Game.js"
new file mode 100644
index 00000000..4361ce64
--- /dev/null
+++ "b/leetcode3/\355\231\251\354\235\200\354\247\200/877. Stone Game.js"	
@@ -0,0 +1,9 @@
+/**
+ * @param {number[]} piles
+ * @return {boolean}
+ */
+var stoneGame = function (piles) {
+  for (let i = 0; i < piles.length / 2; i++) {
+    // 현재 점수가 낮더라도 나중에 이길수있음
+  }
+};