FrontierCS: Evolving Challenges for Evolving Intelligence. - Qiuyang Mang; Wenhao Chai; Zhifei Li; Huanzhi Mao; Shang Zhou; Alexander Du; Hanchen Li; Shu Liu; Edwin Chen; Yichuan Wang; Xieting Chu; Zerui Cheng; et al. (CoRR, 2025)