From bde1faf984a6b98d53ea87a0b1d124c06d95f830 Mon Sep 17 00:00:00 2001
From: Robin Yoon <robinyoonofficial@gmail.com>
Date: Mon, 8 Dec 2025 14:30:43 +0900
Subject: [PATCH 1/2] best time to buy and sell stock

---
 .../robinyoon-dev.js                          | 22 +++++++++++++++++++
 1 file changed, 22 insertions(+)
 create mode 100644 best-time-to-buy-and-sell-stock/robinyoon-dev.js

diff --git a/best-time-to-buy-and-sell-stock/robinyoon-dev.js b/best-time-to-buy-and-sell-stock/robinyoon-dev.js
new file mode 100644
index 0000000000..b57408abb2
--- /dev/null
+++ b/best-time-to-buy-and-sell-stock/robinyoon-dev.js
@@ -0,0 +1,22 @@
+/**
+ * @param {number[]} prices
+ * @return {number}
+ */
+var maxProfit = function(prices) {
+ 
+    // NOTE: 해설 보고 쓴 코드입니다.
+    // i 번째 날에 prices[i]의 가격으로 주식을 팔아서 가장 큰 이익을 내려면 주식을 언제 샀어야 했을까?
+    // 정답은 바로 i 번째 날이 오기 전에 주식이 가장 쌌던 날 입니다!
+
+    let maxProfit = 0;
+    let minPrice = prices[0];
+
+    for(const price of prices){
+        const profit = price - minPrice
+        maxProfit = Math.max(maxProfit, profit);
+        minPrice = Math.min(price, minPrice);
+    }
+
+    return maxProfit;
+
+};
\ No newline at end of file

From 891ad63c2870a093c101f518123d161a8170d2f0 Mon Sep 17 00:00:00 2001
From: Robin Yoon <robinyoonofficial@gmail.com>
Date: Mon, 8 Dec 2025 14:34:22 +0900
Subject: [PATCH 2/2] fix lint error

---
 best-time-to-buy-and-sell-stock/robinyoon-dev.js | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/best-time-to-buy-and-sell-stock/robinyoon-dev.js b/best-time-to-buy-and-sell-stock/robinyoon-dev.js
index b57408abb2..d7dcb423e0 100644
--- a/best-time-to-buy-and-sell-stock/robinyoon-dev.js
+++ b/best-time-to-buy-and-sell-stock/robinyoon-dev.js
@@ -19,4 +19,4 @@ var maxProfit = function(prices) {
 
     return maxProfit;
 
-};
\ No newline at end of file
+};