Team solution (李鹏 · 张元冰 · 刘露, advisor 李园园; NCWU) for the China Undergraduate Mathematical Contest in Modeling (CUMCM) 2025, Problem C — “NIPT dynamic decision optimization: survival analysis and risk constraints.” Awarded Provincial First Prize (Henan region). Paper, full code and data across four sub-problems are open-sourced.

Modelling

• Q1 data cleaning + GAMM statistical modelling
• Q2 full Python analysis pipeline
• Q3 Monte-Carlo dynamic programming for decision optimization
• Q4 risk-constrained optimization & outputs