add new solutions

solutions/24/q2483/solution.go

@@ -0,0 +1,29 @@
+package q2483
+
+func bestClosingTime(customers string) int {
+	numY := 0
+	for i := range len(customers) {
+		if customers[i] == 'Y' {
+			numY++
+		}
+	}
+	minCloseHour := 0
+	minPenalty := numY
+	penalty := numY
+	for i := range len(customers) {
+		// close at (i + 1)th hour
+		switch customers[i] {
+		case 'N':
+			penalty++
+		case 'Y':
+			penalty--
+		}
+		if penalty < minPenalty {
+			minPenalty = penalty
+			minCloseHour = i + 1
+		}
+	}
+	return minCloseHour
+}
+
+var _ = bestClosingTime