Merge pull request #1945 from CodingTestStudy2/이진희

[이진희] Day33

Author: github-actions[bot]

leetcode3/이진희/121. Best Time to Buy and Sell Stock.java

@@ -0,0 +1,13 @@
+class Solution {
+    public int maxProfit(int[] prices) {
+        int minPrice = Integer.MAX_VALUE;
+        int maxProfit = 0;
+
+        for (int price : prices) {
+            if (price < minPrice) minPrice = price;
+            else if (price - minPrice > maxProfit) maxProfit = price - minPrice;
+        }
+
+        return maxProfit;
+    }
+}