feat: #334

README.md

@@ -123,6 +123,7 @@ leetcode 题解，记录自己的 leetcode 解题之路。
 - [240.search-a-2-d-matrix-ii](./problems/240.search-a-2-d-matrix-ii.md)
 - 🖊 [279.perfect-squares](./problems/279.perfect-squares.md)
 - [322.coin-change](./problems/322.coin-change.md)
+- 🆕 [334.increasing-triplet-subsequence](./problems/334.increasing-triplet-subsequence.md)
 - [328.odd-even-linked-list](./problems/328.odd-even-linked-list.md)
 - [416.partition-equal-subset-sum](./problems/416.partition-equal-subset-sum.md)
 - [445.add-two-numbers-ii](./problems/445.add-two-numbers-ii.md)

assets/drawio/152.maximum-product-subarray .drawio

+<mxfile modified="2019-04-28T04:04:43.390Z" host="www.draw.io" agent="Mozilla/5.0 (Macintosh; Intel Mac OS X 10_12_6) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/73.0.3683.86 Safari/537.36" etag="x7taIV4aV3HK_th4ormZ" version="10.6.5" type="device"><diagram id="YXMyPOv_ULgBjCf9Ohy7" name="第 1 页">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</diagram></mxfile>
\ No newline at end of file

assets/drawio/334.increasing-triplet-subsequence.drawio

+<mxfile modified="2019-04-28T05:44:04.589Z" host="www.draw.io" agent="Mozilla/5.0 (Macintosh; Intel Mac OS X 10_12_6) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/73.0.3683.86 Safari/537.36" etag="PODMzlxkKwJ-VLBAo4pq" version="10.6.5" type="device"><diagram id="a3jdPwh5aMc9FGEKUp8T" name="第 1 页">1Zphb6MgGMc/jS/XWFBrX7aubrlsyXK75JJ7szCllSuKh2zt7tMfWGyrdNkuc8UtS9QHBP3x8PB/qA6M8u0VR2V2y1JMHeCmWwdeOgCM4TSUB2V52VkmwXhnWHGS6koHwz35i7XR1dYnkuKqVVEwRgUp28aEFQVORMuGOGebdrUlo+1eS7TChuE+QdS0/iSpyHbWEEwO9mtMVlnT8ziY7kpy1FTWb1JlKGWbIxNcODDijIndWb6NMFXwGi67++JXSvcPxnEh3nPD5u76z292fQPEt5/w3otcEP260K08I/rUfuFKvDQIOHsqUqxacR0432RE4PsSJap0Iwdd2jKRU3k1lqe6PcwF3r76oOP960u/wSzHgr/IKnun0cS0y0z15ebA39em7Ah9Y0N6xFf7hg9Q5Inm8h+MgMEI2GcUDosRNBhB64zAwPzIMxh59hkNzI98g5FvnREcmB8FA2TUjdnexDKkyQAnWzdoW4cUfoGobR3S1IBkf/nvhm3rkBq5Pigh2Q3c9imZcttZBM40cuR4Lnxn7jphbGCTDctsB7+NDFXlLgVakq3C3AfDIGgzHAcmQ3iCIfw0hqYcdxYTZxap/4XnzGdOGA0Vpu+3YALXN2B6J2B6nwbT1O1tmKETTgcLs+2ZwDdhnnd2mwLffgwM3M789W3HQFPi219Pu5ROTczzUjJFvn1pZlA6sRacl5Kp8g1IVYZKdUryeqfvGImCQRJEZ5SsCmkTrDyy3qBHTO9YRQRhqvSRCcFyWYGqgjlK1qt6ACJGGa/7gsv6T1apO5s1Qc89FQH181xmQqitzJkiAeIkLeCIJKxYEjm0fJTIHkGcIoHkQdkreVxSJC5Qop6ruqiNSqTGvloa4x8kWT/cIr6WK2U4KotVDwPvTUBHBIyNgZe9mSO/N/Y/9GbuMngpNenIUetSykxtvo6UCtpSyrctpYCZAX0dKdUR+b5tKQXMwP7BPa4UVVldt6e10GukczOZbesqYAbED+549Y4sGBoyM/59UGT1jcwfmpdBM8p9UL33jmxoXgaH+BtrMDjHAuby2YVUMlIIzBfP8iUrzWL/q7p77EtuG1glOFvjRqgXrMCNjD/S9wlWjb8nATidNyB9tW+nyTzy7Up9GzHKqwThUYpLjhMkcDoqWSVrPtSfKcj6S0LpUTLhuvMoBuqtiLxBP0PBuBqeXsIxDNsu4JousJ/dZ5FQ8MRu1JdP58ZvpnOXMlm7oqiqHr7jDeNr2R6IZea0rbOnWCd6Ku8jFCeUVbhO686wQE9NGdhbmicvD9++1GVHXxDBxT8=</diagram></mxfile>
\ No newline at end of file

problems/152.maximum-product-subarray.md

@@ -51,7 +51,7 @@ var maxProduct = function(nums) {
 
 ![152.maximum-product-subarray](../assets/problems/152.maximum-product-subarray.png)
 
-这种思路的解法由于只需要遍历依次，其时间复杂度是O(n)，代码见下方代码区。
+这种思路的解法由于只需要遍历一次，其时间复杂度是O(n)，代码见下方代码区。
 ## 关键点
 
 - 同时记录乘积最大值和乘积最小值

334.increasing-triplet-subsequence.js → problems/334.increasing-triplet-subsequence.md

+
+## 题目地址
+https://leetcode.com/problems/increasing-triplet-subsequence/description/
+
+## 题目描述
+
+```
+Given an unsorted array return whether an increasing subsequence of length 3 exists or not in the array.
+
+Formally the function should:
+
+Return true if there exists i, j, k 
+such that arr[i] < arr[j] < arr[k] given 0 ≤ i < j < k ≤ n-1 else return false.
+Note: Your algorithm should run in O(n) time complexity and O(1) space complexity.
+
+Example 1:
+
+Input: [1,2,3,4,5]
+Output: true
+Example 2:
+
+Input: [5,4,3,2,1]
+Output: false
+```
+
+## 思路
+这道题是求解顺序数字是否有三个递增的排列， 注意这里没有要求连续的，因此诸如滑动窗口的思路是不可以的。
+题目要求O(n)的时间复杂度和O(1)的空间复杂度，因此暴力的做法就不用考虑了。
+
+我们的目标就是`依次`找到三个数字，其顺序是递增的。因此我们的做法可以是依次遍历，
+然后维护三个变量，分别记录最小值，第二小值，第三小值。只要我们能够填满这三个变量就返回true，否则返回false。
+
+![334.increasing-triplet-subsequence](../assets/problems/334.increasing-triplet-subsequence.png)
+## 关键点解析
+
+- 维护三个变量，分别记录最小值，第二小值，第三小值。只要我们能够填满这三个变量就返回true，否则返回false
+
+## 代码
+```js
+
+
 /*
  * @lc app=leetcode id=334 lang=javascript
  *
@@ -62,4 +103,4 @@ var increasingTriplet = function(nums) {
 
     return false;
 };
-
+```