diff --git a/best-time-to-buy-and-sell-stock/jiji-hoon96.ts b/best-time-to-buy-and-sell-stock/jiji-hoon96.ts
new file mode 100644
index 000000000..84c6244d5
--- /dev/null
+++ b/best-time-to-buy-and-sell-stock/jiji-hoon96.ts
@@ -0,0 +1,23 @@
+function maxProfit(prices: number[]): number {
+  if (prices.length <= 1) return 0;
+  
+  let minPrice = prices[0];
+  let maxProfit = 0;
+  
+  for (let i = 1; i < prices.length; i++) {
+      // 현재 가격이 최소가보다 낮으면 최소가 업데이트
+      if (prices[i] < minPrice) {
+          minPrice = prices[i];
+      } 
+      // 현재 가격으로 팔았을 때의 이익 계산
+      else {
+          const currentProfit = prices[i] - minPrice;
+          // 최대 이익 업데이트
+          if (currentProfit > maxProfit) {
+              maxProfit = currentProfit;
+          }
+      }
+  }
+  
+  return maxProfit;
+}
diff --git a/encode-and-decode-strings/jiji-hoon96.ts b/encode-and-decode-strings/jiji-hoon96.ts
new file mode 100644
index 000000000..e69de29bb
diff --git a/group-anagrams/jiji-hoon96.ts b/group-anagrams/jiji-hoon96.ts
new file mode 100644
index 000000000..e69de29bb
diff --git a/implement-trie-prefix-tree/jiji-hoon96.ts b/implement-trie-prefix-tree/jiji-hoon96.ts
new file mode 100644
index 000000000..e69de29bb
diff --git a/word-break/jiji-hoon96.ts b/word-break/jiji-hoon96.ts
new file mode 100644
index 000000000..e69de29bb