Merge pull request #946 from 0xff-dev/2678

Add solution and test-cases for problem 2678

Author: 6boris

leetcode/2601-2700/2678.Number-of-Senior-Citizens/README.md

@@ -0,0 +1,34 @@
+# [2678.Number of Senior Citizens][title]
+
+## Description
+You are given a **0-indexed** array of strings `details`. Each element of `details` provides information about a given passenger compressed into a string of length `15`. The system is such that:
+
+- The first ten characters consist of the phone number of passengers.
+- The next character denotes the gender of the person.
+- The following two characters are used to indicate the age of the person.
+- The last two characters determine the seat allotted to that person.
+
+Return the number of passengers who are **strictly more than 60 years old**.
+
+**Example 1:**
+
+```
+Input: details = ["7868190130M7522","5303914400F9211","9273338290F4010"]
+Output: 2
+Explanation: The passengers at indices 0, 1, and 2 have ages 75, 92, and 40. Thus, there are 2 people who are over 60 years old.
+```
+
+**Example 2:**
+
+```
+Input: details = ["1313579440F2036","2921522980M5644"]
+Output: 0
+Explanation: None of the passengers are older than 60.
+```
+
+## 结语
+
+如果你同我一样热爱数据结构、算法、LeetCode，可以关注我 GitHub 上的 LeetCode 题解：[awesome-golang-algorithm][me]
+
+[title]: https://leetcode.com/problems/number-of-senior-citizens
+[me]: https://github.com/kylesliu/awesome-golang-algorithm

leetcode/2601-2700/2678.Number-of-Senior-Citizens/Solution.go

@@ -1,5 +1,14 @@
 package Solution
 
-func Solution(x bool) bool {
-	return x
+import "strconv"
+
+func Solution(details []string) int {
+	ans := 0
+	for _, d := range details {
+		age, _ := strconv.Atoi(d[11:13])
+		if age > 60 {
+			ans++
+		}
+	}
+	return ans
 }

leetcode/2601-2700/2678.Number-of-Senior-Citizens/Solution_test.go

@@ -10,12 +10,11 @@ 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{"7868190130M7522", "5303914400F9211", "9273338290F4010"}, 2},
+		{"TestCase2", []string{"1313579440F2036", "2921522980M5644"}, 0},
 	}
 
 	//	开始测试
@@ -30,10 +29,10 @@ 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() {
 }