new：新增Cangjie题解：最长重复子数组

problems/0718.最长重复子数组.md

@@ -581,6 +581,24 @@ int findLength(int* nums1, int nums1Size, int* nums2, int nums2Size) {
 }
 ```
 
+### Cangjie
+```cangjie
+func findLength(nums1: Array<Int64>, nums2: Array<Int64>): Int64 {
+    let n = nums1.size
+    let m = nums2.size
+    let dp = Array(n + 1, {_ => Array(m + 1, item: 0)})
+    var res = 0
+    for (i in 1..=n) {
+        for (j in 1..=m) {
+            if (nums1[i - 1] == nums2[j - 1]) {
+                dp[i][j] = dp[i - 1][j - 1] + 1
+            }
+            res = max(res, dp[i][j])
+        }
+    }
+    return res
+}
+```
 
 
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