@article{rtmcsteplevelcreditassignmentviarolloutt,
  title = {RTMC: Step-Level Credit Assignment via Rollout Trees},
  author = {Tao Wang and Suhang Zheng and Xiaoxiao Xu},
  year = {2026},
  eprint = {2604.11037},
  archivePrefix = {arXiv},
  url = {https://arxiv.org/abs/2604.11037},
}