Add solution 1603、1608、1700、1710、1716、1720、1725、1732、1736、1742、1748、1752、1758

leetcode/1603.Design-Parking-System/1603. Design Parking System.go

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+package leetcode
+
+type ParkingSystem struct {
+	Big    int
+	Medium int
+	Small  int
+}
+
+func Constructor(big int, medium int, small int) ParkingSystem {
+	return ParkingSystem{
+		Big:    big,
+		Medium: medium,
+		Small:  small,
+	}
+}
+
+func (this *ParkingSystem) AddCar(carType int) bool {
+	switch carType {
+	case 1:
+		{
+			if this.Big > 0 {
+				this.Big--
+				return true
+			}
+			return false
+		}
+	case 2:
+		{
+			if this.Medium > 0 {
+				this.Medium--
+				return true
+			}
+			return false
+		}
+	case 3:
+		{
+			if this.Small > 0 {
+				this.Small--
+				return true
+			}
+			return false
+		}
+	}
+	return false
+}
+
+/**
+ * Your ParkingSystem object will be instantiated and called as such:
+ * obj := Constructor(big, medium, small);
+ * param_1 := obj.AddCar(carType);
+ */

leetcode/1603.Design-Parking-System/1603. Design Parking System_test.go

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+package leetcode
+
+import (
+	"fmt"
+	"testing"
+)
+
+func Test_Problem1603(t *testing.T) {
+	obj := Constructor(1, 1, 0)
+	fmt.Printf("obj = %v\n", obj)
+	fmt.Printf("obj = %v\n", obj.AddCar(1))
+	fmt.Printf("obj = %v\n", obj.AddCar(2))
+	fmt.Printf("obj = %v\n", obj.AddCar(3))
+	fmt.Printf("obj = %v\n", obj.AddCar(1))
+}

leetcode/1603.Design-Parking-System/README.md

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+# [1603. Design Parking System](https://leetcode.com/problems/design-parking-system/)
+
+
+## 题目
+
+Design a parking system for a parking lot. The parking lot has three kinds of parking spaces: big, medium, and small, with a fixed number of slots for each size.
+
+Implement the `ParkingSystem` class:
+
+- `ParkingSystem(int big, int medium, int small)` Initializes object of the `ParkingSystem` class. The number of slots for each parking space are given as part of the constructor.
+- `bool addCar(int carType)` Checks whether there is a parking space of `carType` for the car that wants to get into the parking lot. `carType` can be of three kinds: big, medium, or small, which are represented by `1`, `2`, and `3` respectively. **A car can only park in a parking space of its** `carType`. If there is no space available, return `false`, else park the car in that size space and return `true`.
+
+**Example 1:**
+
+```
+Input
+["ParkingSystem", "addCar", "addCar", "addCar", "addCar"]
+[[1, 1, 0], [1], [2], [3], [1]]
+Output
+[null, true, true, false, false]
+
+Explanation
+ParkingSystem parkingSystem = new ParkingSystem(1, 1, 0);
+parkingSystem.addCar(1); // return true because there is 1 available slot for a big car
+parkingSystem.addCar(2); // return true because there is 1 available slot for a medium car
+parkingSystem.addCar(3); // return false because there is no available slot for a small car
+parkingSystem.addCar(1); // return false because there is no available slot for a big car. It is already occupied.
+```
+
+**Constraints:**
+
+- `0 <= big, medium, small <= 1000`
+- `carType` is `1`, `2`, or `3`
+- At most `1000` calls will be made to `addCar`
+
+## 题目大意
+
+请你给一个停车场设计一个停车系统。停车场总共有三种不同大小的车位：大，中和小，每种尺寸分别有固定数目的车位。
+
+请你实现 ParkingSystem 类：
+
+- ParkingSystem(int big, int medium, int small) 初始化 ParkingSystem 类，三个参数分别对应每种停车位的数目。
+- bool addCar(int carType) 检查是否有 carType 对应的停车位。 carType 有三种类型：大，中，小，分别用数字 1， 2 和 3 表示。一辆车只能停在  carType 对应尺寸的停车位中。如果没有空车位，请返回 false ，否则将该车停入车位并返回 true 。
+
+## 解题思路
+
+- 简单题。分别用 3 个变量表示大，中和小车位。`addCar()` 判断这 3 个变量是否还有空车位即可。
+
+## 代码
+
+```go
+package leetcode
+
+type ParkingSystem struct {
+	Big    int
+	Medium int
+	Small  int
+}
+
+func Constructor(big int, medium int, small int) ParkingSystem {
+	return ParkingSystem{
+		Big:    big,
+		Medium: medium,
+		Small:  small,
+	}
+}
+
+func (this *ParkingSystem) AddCar(carType int) bool {
+	switch carType {
+	case 1:
+		{
+			if this.Big > 0 {
+				this.Big--
+				return true
+			}
+			return false
+		}
+	case 2:
+		{
+			if this.Medium > 0 {
+				this.Medium--
+				return true
+			}
+			return false
+		}
+	case 3:
+		{
+			if this.Small > 0 {
+				this.Small--
+				return true
+			}
+			return false
+		}
+	}
+	return false
+}
+
+/**
+ * Your ParkingSystem object will be instantiated and called as such:
+ * obj := Constructor(big, medium, small);
+ * param_1 := obj.AddCar(carType);
+ */
+```