成绩转换为等级问题(map和lambda综合应用）

状态	递交者	时间	内存	语言	代码	递交时间
AC	student2023014	21ms	11.1 MiB	Python 3	195 Bytes	2024-10-15 17:48:25
AC	student2023013	21ms	11.2 MiB	Python 3	190 Bytes	2024-10-15 17:46:24
AC	student2023050	21ms	11.2 MiB	Python 3	183 Bytes	2024-10-15 17:47:40
AC	student2023025	21ms	11.1 MiB	Python 3	235 Bytes	2024-10-15 17:47:01
AC	student2023030	22ms	11.1 MiB	Python 3	208 Bytes	2024-10-15 17:42:42
AC	student2023032	22ms	11.1 MiB	Python 3	230 Bytes	2024-10-15 17:49:45
AC	student2023024	22ms	11.1 MiB	Python 3	252 Bytes	2024-10-15 17:43:33
AC	student2023034	22ms	11.2 MiB	Python 3	256 Bytes	2024-10-15 17:46:16
AC	student2023022	22ms	11.1 MiB	Python 3	198 Bytes	2024-10-15 17:43:20
AC	student2023012	22ms	11.2 MiB	Python 3	383 Bytes	2024-10-15 17:47:29
AC	student2023033	22ms	11.2 MiB	Python 3	246 Bytes	2024-10-15 17:44:58
AC	student2023043	22ms	11.1 MiB	Python 3	188 Bytes	2024-10-15 17:48:34
AC	student2023021	22ms	11.2 MiB	Python 3	296 Bytes	2024-10-15 17:44:44
AC	student2023009	22ms	11.2 MiB	Python 3	204 Bytes	2024-10-15 17:43:50
AC	student2023037	23ms	11.2 MiB	Python 3	141 Bytes	2024-10-15 17:26:36
AC	student2023049	23ms	11.1 MiB	Python 3	293 Bytes	2024-10-15 17:00:48
AC	te202410	23ms	11.2 MiB	Python 3	318 Bytes	2024-10-14 19:32:10
AC	student2023042	23ms	11.1 MiB	Python 3	231 Bytes	2024-10-15 17:49:03
AC	student2023020	23ms	11.2 MiB	Python 3	148 Bytes	2024-11-9 21:06:58
AC	student2023008	23ms	11.1 MiB	Python 3	478 Bytes	2024-10-15 17:46:22
AC	student2023015	23ms	11.2 MiB	Python 3	188 Bytes	2024-10-15 17:49:04
AC	student2023045	24ms	11.2 MiB	Python 3	236 Bytes	2024-10-15 17:35:16
AC	student2023036	24ms	11.2 MiB	Python 3	148 Bytes	2024-10-15 17:31:06
AC	student2023019	24ms	11.1 MiB	Python 3	208 Bytes	2024-10-15 17:44:29
AC	student2023001	25ms	11.2 MiB	Python 3	258 Bytes	2024-10-15 17:46:48
AC	student2023004	25ms	11.1 MiB	Python 3	243 Bytes	2024-10-15 17:43:07
AC	student2023051	26ms	11.1 MiB	Python 3	175 Bytes	2024-10-15 17:46:04
AC	student2023052	26ms	11.1 MiB	Python 3	186 Bytes	2024-10-15 17:43:53
AC	student2023011	26ms	11.1 MiB	Python 3	235 Bytes	2024-10-15 17:43:52
AC	student2023044	26ms	11.2 MiB	Python 3	184 Bytes	2024-10-15 17:43:18
AC	student2023006	27ms	11.1 MiB	Python 3	226 Bytes	2024-10-15 17:42:18
AC	student2023031	27ms	11.1 MiB	Python 3	231 Bytes	2024-10-15 17:42:16
AC	student2023038	27ms	11.1 MiB	Python 3	228 Bytes	2024-10-15 17:42:56
AC	student2023023	28ms	11.1 MiB	Python 3	190 Bytes	2024-10-15 17:43:08
AC	student2023041	29ms	11 MiB	Python 3	286 Bytes	2024-10-15 17:37:42
AC	student2023007	30ms	11 MiB	Python 3	230 Bytes	2024-10-15 17:43:52
AC	student2023048	31ms	11 MiB	Python 3	225 Bytes	2024-10-15 17:46:19
AC	student2023027	32ms	11.2 MiB	Python 3	258 Bytes	2024-10-15 17:44:38
AC	student2023018	32ms	11.2 MiB	Python 3	155 Bytes	2024-10-15 17:46:21
AC	student2023028	32ms	11.2 MiB	Python 3	198 Bytes	2024-10-15 17:46:43
AC	student2023035	32ms	11.2 MiB	Python 3	173 Bytes	2024-10-15 17:43:33