feat: add typescript solution to lc problem: No.0334 (doocs#577)

No.0334.Increasing Triplet Subsequence

Co-authored-by: Yang Libin <[email protected]>

Author: zhaocchen

solution/0300-0399/0334.Increasing Triplet Subsequence/README.md

@@ -123,6 +123,26 @@ class Solution {
 }
 ```
 
+### **TypeScript**
+
+```ts
+function increasingTriplet(nums: number[]): boolean {
+    let n = nums.length;
+    if (n < 3) return false;
+    let min = nums[0], mid = Number.MAX_SAFE_INTEGER;
+    for (let num of nums) {
+        if (num <= min) {
+            min = num;
+        } else if (num <= mid) {
+            mid = num;
+        } else if (num > mid) {
+            return true;
+        }
+    }
+    return false;
+};
+```
+
 ### **C++**
 
 ```cpp

solution/0300-0399/0334.Increasing Triplet Subsequence/README_EN.md

@@ -107,6 +107,26 @@ class Solution {
 }
 ```
 
+### **TypeScript**
+
+```ts
+function increasingTriplet(nums: number[]): boolean {
+    let n = nums.length;
+    if (n < 3) return false;
+    let min = nums[0], mid = Number.MAX_SAFE_INTEGER;
+    for (let num of nums) {
+        if (num <= min) {
+            min = num;
+        } else if (num <= mid) {
+            mid = num;
+        } else if (num > mid) {
+            return true;
+        }
+    }
+    return false;
+};
+```
+
 ### **C++**
 
 ```cpp

solution/0300-0399/0334.Increasing Triplet Subsequence/Solution.ts

@@ -0,0 +1,15 @@
+function increasingTriplet(nums: number[]): boolean {
+    let n = nums.length;
+    if (n < 3) return false;
+    let min = nums[0], mid = Number.MAX_SAFE_INTEGER;
+    for (let num of nums) {
+        if (num <= min) {
+            min = num;
+        } else if (num <= mid) {
+            mid = num;
+        } else if (num > mid) {
+            return true;
+        }
+    }
+    return false;
+};