【例51.2】插入元素

Status	Submit By	Time	Memory	Language	Code	Submit At
AC	宇軒	18ms	516 KiB	C	325 Bytes	2025-12-10 17:48:56
AC	sg2a24	449ms	4 MiB	Python 3	134 Bytes	2025-12-10 17:33:43
AC	Tii	452ms	4 MiB	Python 3	132 Bytes	2025-12-10 17:34:23
AC	patricklai7528	455ms	4 MiB	Python 3	144 Bytes	2025-12-3 14:41:37