Add solution and test-cases for problem 539

leetcode/501-600/0539.Minimum-Time-Difference/README.md

@@ -1,28 +1,21 @@
 # [539.Minimum Time Difference][title]
 
-> [!WARNING|style:flat]
-> This question is temporarily unanswered if you have good ideas. Welcome to [Create Pull Request PR](https://github.com/kylesliu/awesome-golang-algorithm)
-
 ## Description
-
+Given a list of 24-hour clock time points in **"HH:MM"** format, return the minimum **minutes** difference between any two time-points in the list.
+
 **Example 1:**
 
 ```
-Input: a = "11", b = "1"
-Output: "100"
+Input: timePoints = ["23:59","00:00"]
+Output: 1
 ```
 
-## 题意
-> ...
-
-## 题解
+**Example 2:**
 
-### 思路1
-> ...
-Minimum Time Difference
-```go
 ```
-
+Input: timePoints = ["00:00","23:59","00:00"]
+Output: 0
+```
 
 ## 结语
 

leetcode/501-600/0539.Minimum-Time-Difference/Solution.go

@@ -1,5 +1,45 @@
 package Solution
 
-func Solution(x bool) bool {
-	return x
+import (
+	"fmt"
+	"sort"
+)
+
+func Solution(timePoints []string) int {
+	hm := make([][]int, len(timePoints))
+	var a, b int
+	for idx, tp := range timePoints {
+		fmt.Sscanf(tp, "%d:%d", &a, &b)
+		if a == 0 {
+			a = 24
+		}
+		hm[idx] = []int{a, b}
+	}
+	// "12:12","00:13"
+	sort.Slice(hm, func(i, j int) bool {
+		if hm[i][0] == hm[j][0] {
+			return hm[i][1] > hm[j][1]
+		}
+		return hm[i][0] > hm[j][0]
+	})
+	ans := -1
+	l := len(hm)
+
+	for idx := 0; idx < l; idx++ {
+		next := (idx + 1) % l
+		diffh := hm[idx][0] - hm[next][0]
+		diffm := hm[idx][1] - hm[next][1]
+		r := diffh*60 + diffm
+		if r < 0 {
+			r = -r
+		}
+		if x := 1440 - r; x < r {
+			r = x
+		}
+		if ans == -1 || r < ans {
+			ans = r
+		}
+	}
+
+	return ans
 }

leetcode/501-600/0539.Minimum-Time-Difference/Solution_test.go

@@ -10,12 +10,12 @@ func TestSolution(t *testing.T) {
 	//	测试用例
 	cases := []struct {
 		name   string
-		inputs bool
-		expect bool
+		inputs []string
+		expect int
 	}{
-		{"TestCase", true, true},
-		{"TestCase", true, true},
-		{"TestCase", false, false},
+		{"TestCase1", []string{"23:59", "00:00"}, 1},
+		{"TestCase2", []string{"01:39", "10:26", "21:43"}, 236},
+		{"TestCase3", []string{"00:00", "23:59", "00:00"}, 0},
 	}
 
 	//	开始测试
@@ -30,10 +30,10 @@ func TestSolution(t *testing.T) {
 	}
 }
 
-//	压力测试
+// 压力测试
 func BenchmarkSolution(b *testing.B) {
 }
 
-//	使用案列
+// 使用案列
 func ExampleSolution() {
 }