refactor Best Time to Buy and Sell Stock

Author: za-bannai

go/best_time_to_buy_and_sell_stock.go

@@ -2,10 +2,10 @@
 package main
 
 func maxProfit(prices []int) int {
-	minPrice, maxProfit := prices[0], 0
+	minPrice, maxValue := prices[0], 0
 	for _, price := range prices {
 		minPrice = min(minPrice, price)
-		maxProfit = max(maxProfit, price-minPrice)
+		maxValue = max(maxValue, price-minPrice)
 	}
-	return maxProfit
+	return maxValue
 }