refactor 121

fishercoder1534 · fishercoder1534 · commit a2b0f9c89410 · 2019-05-18T11:10:50.000-07:00
diff --git a/src/main/java/com/fishercoder/solutions/_121.java b/src/main/java/com/fishercoder/solutions/_121.java
@@ -33,13 +33,13 @@ public int maxProfit(int[] prices) {
             if (prices == null || prices.length == 0) {
                 return 0;
             }
-            int buy = prices[0];
+            int minBuy = prices[0];
             int maxProfit = 0;
             for (int i = 1; i < prices.length; i++) {
-                if (prices[i] < buy) {
-                    buy = prices[i];
+                if (prices[i] < minBuy) {
+                    minBuy = prices[i];
                 } else {
-                    maxProfit = Math.max(maxProfit, prices[i] - buy);
+                    maxProfit = Math.max(maxProfit, prices[i] - minBuy);
                 }
             }
             return maxProfit;

Original file line number	Diff line number	Diff line change
`@@ -33,13 +33,13 @@ public int maxProfit(int[] prices) {`
`33`	`33`	`if (prices == null \|\| prices.length == 0) {`
`34`	`34`	`return 0;`
`35`	`35`	`}`
`36`		`- int buy = prices[0];`
	`36`	`+ int minBuy = prices[0];`
`37`	`37`	`int maxProfit = 0;`
`38`	`38`	`for (int i = 1; i < prices.length; i++) {`
`39`		`- if (prices[i] < buy) {`
`40`		`- buy = prices[i];`
	`39`	`+ if (prices[i] < minBuy) {`
	`40`	`+ minBuy = prices[i];`
`41`	`41`	`} else {`
`42`		`- maxProfit = Math.max(maxProfit, prices[i] - buy);`
	`42`	`+ maxProfit = Math.max(maxProfit, prices[i] - minBuy);`
`43`	`43`	`}`
`44`	`44`	`}`
`45`	`45`	`return maxProfit;`