feat: add solutions to lc problem: No.1374

No.1374.Generate a String With Characters That Have Odd Counts

Author: yanglbme

solution/1300-1399/1374.Generate a String With Characters That Have Odd Counts/README.md

@@ -44,6 +44,14 @@
 
 <!-- 这里可写通用的实现逻辑 -->
 
+**方法一：构造**
+
+如果 $n$ 为奇数，那么直接构造 $n$ 个 `'a'` 即可。
+
+如果 $n$ 为偶数，那么构造 $n-1$ 个 `'a'` 和 $1$ 个 `'b'` 即可。
+
+时间复杂度 $O(n)$，空间复杂度 $O(n)$。其中 $n$ 为字符串长度。
+
 <!-- tabs:start -->
 
 ### **Python3**
@@ -75,7 +83,9 @@ class Solution {
 public:
     string generateTheString(int n) {
         string ans(n, 'a');
-        if (n % 2 == 0) ans[0] = 'b';
+        if (n % 2 == 0) {
+            ans[0] = 'b';
+        }
         return ans;
     }
 };
@@ -99,11 +109,11 @@ func generateTheString(n int) string {
 
 ```ts
 function generateTheString(n: number): string {
-    const res = new Array(n).fill('a');
+    const ans = Array(n).fill('a');
     if (n % 2 === 0) {
-        res[n - 1] = 'b';
+        ans[0] = 'b';
     }
-    return res.join('');
+    return ans.join('');
 }
 ```
 

solution/1300-1399/1374.Generate a String With Characters That Have Odd Counts/README_EN.md

@@ -68,7 +68,9 @@ class Solution {
 public:
     string generateTheString(int n) {
         string ans(n, 'a');
-        if (n % 2 == 0) ans[0] = 'b';
+        if (n % 2 == 0) {
+            ans[0] = 'b';
+        }
         return ans;
     }
 };
@@ -92,11 +94,11 @@ func generateTheString(n int) string {
 
 ```ts
 function generateTheString(n: number): string {
-    const res = new Array(n).fill('a');
+    const ans = Array(n).fill('a');
     if (n % 2 === 0) {
-        res[n - 1] = 'b';
+        ans[0] = 'b';
     }
-    return res.join('');
+    return ans.join('');
 }
 ```
 

solution/1300-1399/1374.Generate a String With Characters That Have Odd Counts/Solution.cpp

@@ -2,7 +2,9 @@ class Solution {
 public:
     string generateTheString(int n) {
         string ans(n, 'a');
-        if (n % 2 == 0) ans[0] = 'b';
+        if (n % 2 == 0) {
+            ans[0] = 'b';
+        }
         return ans;
     }
 };

solution/1300-1399/1374.Generate a String With Characters That Have Odd Counts/Solution.ts

@@ -1,7 +1,7 @@
 function generateTheString(n: number): string {
-    const res = new Array(n).fill('a');
+    const ans = Array(n).fill('a');
     if (n % 2 === 0) {
-        res[n - 1] = 'b';
+        ans[0] = 'b';
     }
-    return res.join('');
+    return ans.join('');
 }