add new solutions

solutions/14/q1441/solution.go

@@ -0,0 +1,21 @@
+package q1441
+
+const (
+	PUSH = "Push"
+	POP  = "Pop"
+)
+
+func buildArray(target []int, n int) []string {
+	ret := []string{}
+	last := 0
+	for _, num := range target {
+		for range num - last - 1 {
+			ret = append(ret, PUSH, POP)
+		}
+		ret = append(ret, PUSH)
+		last = num
+	}
+	return ret
+}
+
+var _ = buildArray

solutions/14/q1475/solution.go

@@ -0,0 +1,18 @@
+package q1475
+
+func finalPrices(prices []int) []int {
+	st := make([]int, 0, 1024)
+
+	for i := len(prices) - 1; i >= 0; i-- {
+		p := prices[i]
+		for ; len(st) > 0 && st[len(st)-1] > p; st = st[:len(st)-1] {
+		}
+		if len(st) > 0 {
+			prices[i] = p - st[len(st)-1]
+		}
+		st = append(st, p)
+	}
+	return prices
+}
+
+var _ = finalPrices