121. Best Time to Buy and Sell Stock (java)

Author: bluesword12350

solution/0121.Best Time to Buy and Sell Stock/Solution.java

@@ -0,0 +1,16 @@
+class Solution {
+    public int maxProfit(int[] prices) {
+        if (prices.length == 0) return 0;
+        int m = prices[0] , l = 0;
+        for (int i = 1; i < prices.length; i++) {
+            int d = prices[i];
+            if (d < m) {
+                m = d;
+            } else {
+                int n = d - m;
+                l = n > l ? n : l;
+            }
+        }
+        return l;
+    }
+}