Update README.md

kamyu104 · web-flow · commit 31cdc04d0b5c · 2016-09-22T23:41:18.000+08:00
diff --git a/README.md b/README.md
@@ -489,7 +489,7 @@ I'll keep updating for full summary and better solutions. Stay tuned for updates
   #  | Title           |  Solution       |  Time           | Space           | Difficulty    | Tag          | Note
 -----|---------------- | --------------- | --------------- | --------------- | ------------- |--------------| -----
 11| [Container With Most Water](https://leetcode.com/problems/container-with-most-water/)| [C++](./C++/container-with-most-water.cpp) [Python](./Python/container-with-most-water.py) | _O(n)_ | _O(1)_ | Medium ||
-42| [Trapping Rain Water](https://leetcode.com/problems/trapping-rain-water/) | [Python](./Python/trapping-rain-water.py) | _O(n)_ | _O(1)_ | Hard || Tricky
+42| [Trapping Rain Water](https://leetcode.com/problems/trapping-rain-water/) | [C++](./C++/trapping-rain-water.cpp) [Python](./Python/trapping-rain-water.py) | _O(n)_ | _O(1)_ | Hard || Tricky
 44| [Wildcard Matching](https://leetcode.com/problems/wildcard-matching/) | [Python](./Python/wildcard-matching.py) | _O(m + n)_ | _O(1)_    | Hard           || Tricky
 45| [Jump Game II](https://leetcode.com/problems/jump-game-ii/)  | [Python](./Python/jump-game-ii.py) | _O(n)_        | _O(1)_          | Hard           ||
 55| [Jump Game](https://leetcode.com/problems/jump-game/)     | [Python](./Python/jump-game.py)  | _O(n)_          | _O(1)_          | Medium         ||
