二维树状数组 1：单点修改，区间查询

Status	Submit By	Time	Memory	Language	Code	Submit At
AC	zxc	5452ms	145.8 MiB	C++17(O2)	863 Bytes	2025-5-30 16:07:33
AC	hyc0604	5552ms	133.7 MiB	C++14(O2)	1.8 KiB	2025-5-30 16:05:34
AC	曾彦彬contest	5710ms	132.5 MiB	C++14(O2)	907 Bytes	2025-5-31 0:09:00
AC	曹磊	5884ms	148.7 MiB	C++17(O2)	781 Bytes	2025-5-30 15:48:39
AC	shtian	7087ms	135.5 MiB	C++14(O2)	5.8 KiB	2025-5-30 15:42:47
AC	zhouzichuan2011	7606ms	135.6 MiB	C++14(O2)	837 Bytes	2025-5-31 9:09:29
AC	李俊诚	7690ms	143.5 MiB	C++14(O2)	2.7 KiB	2025-5-30 16:07:31
AC	kcs007	7788ms	135.5 MiB	C++14(O2)	835 Bytes	2025-5-30 15:43:59
AC	huangyi	7802ms	131.2 MiB	C++17(O2)	837 Bytes	2025-5-30 15:47:49
AC	zhaolingyun	7847ms	134.8 MiB	C++17(O2)	837 Bytes	2025-5-31 9:20:21
AC	string_dbr	7923ms	134.3 MiB	C++14(O2)	831 Bytes	2025-5-30 15:49:18
AC	周丞昊contest	7938ms	132.5 MiB	C++14(O2)	871 Bytes	2025-5-30 15:48:50
AC	taoruiguo120	7946ms	135.2 MiB	C++17(O2)	863 Bytes	2025-5-30 15:54:44
AC	13988078910	8074ms	135.5 MiB	C++14(O2)	871 Bytes	2025-5-30 15:52:32