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Xidian University 2026 Entrance Examination Math SolutionsStep-by-step solutions and mathematical derivations for the 2026 Xidian University entrance exam (fill-in-the-blanks and analytical problems).
12 min read English -
Codeforces Solutions 1Solutions from Jan-Jul 2024, focusing on construction, bit operations, and greedy problems from Codeforces.
39 min read English -
Codeforces Solutions 3Solutions from Jan-Sep 2024, focusing on number theory, game theory, combinatorics, and EDU problems from Codeforces.
53 min read English