求出 e 的值

Status	Submit By	Time	Memory	Language	Code	Submit At
AC	summer23041	31ms	836 KiB	C++17	190 Bytes	2023-10-5 16:45:52
AC	BC20260046	31ms	788 KiB	C++11	403 Bytes	2023-10-20 13:21:10
AC	BC20260091	31ms	844 KiB	C++11(O2)	246 Bytes	2023-11-10 21:16:34
AC	CC20260060	33ms	808 KiB	C++11	173 Bytes	2023-11-12 8:49:56
AC	BC20260080	40ms	804 KiB	C++17(O2)	341 Bytes	2024-4-14 15:26:11
AC	BC20260085	40ms	796 KiB	C++11	202 Bytes	2024-5-20 13:59:44
AC	BC20260030	41ms	700 KiB	C++17(O2)	292 Bytes	2024-5-6 12:03:19
AC	C20250070	42ms	808 KiB	C++17(O2)	244 Bytes	2024-5-18 11:50:12