【例69.1】过滤多余的空格

状态	递交者	时间	内存	语言	代码	递交时间
AC	常胤豪	24ms	548 KiB	C++14(O2)	189 Bytes	2025-10-31 18:37:32
AC	丁思淼	24ms	540 KiB	C++14(O2)	283 Bytes	2026-1-31 19:05:04
AC	杜劭晴	25ms	508 KiB	C++14(O2)	137 Bytes	2025-8-3 11:34:09
AC	liyaoyanlin	25ms	508 KiB	C++14(O2)	241 Bytes	2025-8-16 21:09:42
AC	C++很差 (liyaoyanheng)	26ms	532 KiB	C++14(O2)	292 Bytes	2025-8-16 21:14:07
AC	徐老师	26ms	512 KiB	C++14(O2)	239 Bytes	2026-1-31 15:25:55
AC	litianrui	26ms	508 KiB	C++11	207 Bytes	2025-7-28 15:38:58
AC	chy陈浩洋 (陈浩洋)	28ms	532 KiB	C++14(O2)	221 Bytes	2025-10-21 18:29:39
AC	yaoliyidan	28ms	756 KiB	C++11	231 Bytes	2025-8-4 8:17:34
AC	wqq	28ms	760 KiB	C++98	255 Bytes	2025-10-28 20:15:19
AC	小陈同学 (陈李钰)	28ms	540 KiB	C++14(O2)	124 Bytes	2025-11-9 8:47:32
AC	杜劭晴1	28ms	768 KiB	C++14(O2)	410 Bytes	2025-8-24 11:39:02
AC	xyc (夏懿陈)	28ms	532 KiB	C++14(O2)	137 Bytes	2025-8-3 19:24:10