feat: add rust solution for lc No.2770

[yanglbme]

No description provided.

[Copilot]

Pull request overview

Adds a Rust implementation for LeetCode problem 2770. Maximum Number of Jumps to Reach the Last Index, and updates accompanying documentation/snippets to include Rust and align the C++ recursion style used across the repo.

Changes:

• Added Solution.rs implementing the memoized DFS / DP approach in Rust.
• Updated C++ solution to use the repo-standard recursive lambda pattern (this auto&&) instead of std::function.
• Updated both Chinese and English READMEs to (a) tidy example formatting and (b) include the Rust solution snippet.

Reviewed changes

Copilot reviewed 4 out of 4 changed files in this pull request and generated no comments.

File	Description
solution/2700-2799/2770.Maximum Number of Jumps to Reach the Last Index/Solution.rs	New Rust memoized DFS solution for LC 2770.
solution/2700-2799/2770.Maximum Number of Jumps to Reach the Last Index/Solution.cpp	Refactors recursion helper to repo-standard recursive lambda style.
solution/2700-2799/2770.Maximum Number of Jumps to Reach the Last Index/README.md	Example formatting cleanup + adds Rust solution section/snippet (CN).
solution/2700-2799/2770.Maximum Number of Jumps to Reach the Last Index/README_EN.md	Example formatting cleanup + adds Rust solution section/snippet (EN).

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