Solvita: Enhancing Large Language Models for Competitive Programming via Agentic Evolution. - Han Li; Jinyu Tian 008; Rili Feng; Yuqiao Du; Chong Zheng; Chenyu Wang; Chenchen Liu; Shihao Li; Xinping Lei; Yifan Yao; Weihao Xie; Letian Zhu; et al. (CoRR, 2026)