acm 经典代码 数论 图论网络流 最小生成树 组合 数学应用 等-acm classic code contains the acm contest most of the major classification chart tree mathematics applications To explain by category

小世界网络是应用图论的方法来研究脑功能成像。-A Resilient, Low-Frequency, Small-World Human Brain Functional Network with Highly Connected Association Cortical Hubs