Update README.md

README.md

@@ -515,7 +515,7 @@ I'll keep updating for full summary and better solutions. Stay tuned for updates
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 284| [Peeking Iterator](https://leetcode.com/problems/peeking-iterator/)| [C++](./C++/peeking-iterator.cpp) [Python](./Python/peeking-iterator.py) | _O(1)_ | _O(1)_ | Medium ||
 348| [Design Tic-Tac-Toe](https://leetcode.com/problems/design-tic-tac-toe/) | [C++](./C++/design-tic-tac-toe.cpp) [Python](./Python/design-tic-tac-toe.py) | _O(1)_| _O(n^2)_| Medium |📖||
-353| [Design Snake Game](https://leetcode.com/problems/design-snake-game/) | [C++](./C++/design-snake-game.cpp) [Python](./Python/design-snake-game.py) | _O(s)_| _O(s)_| Medium |📖| Deque |
+353| [Design Snake Game](https://leetcode.com/problems/design-snake-game/) | [C++](./C++/design-snake-game.cpp) [Python](./Python/design-snake-game.py) | _O(1)_| _O(s)_| Medium |📖| Deque |
 355| [Design Twitter](https://leetcode.com/problems/design-twitter/) | [C++](./C++/design-twitter.cpp) [Python](./Python/design-twitter.py) | _O(klogu)_| _O(t + f)_| Hard | LintCode | Heap |
 359| [Logger Rate Limiter](https://leetcode.com/problems/logger-rate-limiter/) | [C++](./C++/logger-rate-limiter.cpp) [Python](./Python/logger-rate-limiter.py) | _O(1), amortized_ | _O(k)_| Easy |📖| Deque |
 362| [Design Hit Counter](https://leetcode.com/problems/design-hit-counter/) | [C++](./C++/design-hit-counter.cpp) [Python](./Python/design-hit-counter.py) | _O(1), amortized_ | _O(k)_| Medium |📖| Deque |