* feat: tranlating n_queens.c
* Reference to c++ code with additional comments
* Update n_queens.c
* Update n_queens.c
* Format n_queens.c
* Update n_queens.c
keep the file header information format consistent with others
* fine tune
* fine tune
* Delete mkdocs-en.yml
* Update README.md
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Co-authored-by: krahets <krahets@163.com>