feat: add question 674

Author: yinxin630

674.data

@@ -0,0 +1,2 @@
+[1,3,5,4,7]
+[1,3,5,4,2,3,4,5]

674.最长连续递增序列.js

@@ -0,0 +1,33 @@
+/*
+ * @lc app=leetcode.cn id=674 lang=javascript
+ *
+ * [674] 最长连续递增序列
+ */
+
+// @lc code=start
+/**
+ * @param {number[]} nums
+ * @return {number}
+ */
+var findLengthOfLCIS = function(nums) {
+    if (nums.length === 0) {
+        return 0;
+    } else if (nums.length === 1) {
+        return 1;
+    }
+
+    let result = 0;
+    let current = 1;
+    for (let i = 1; i < nums.length; i++) {
+        if (nums[i] > nums[i - 1]) {
+            current++;
+        } else {
+            current = 1;
+        }
+        result = Math.max(result, current);
+    }
+
+    return result;
+};
+// @lc code=end
+