树状数组 1 ：单点修改，区间查询

Status	Submit By	Time	Memory	Language	Code	Submit At
AC	oyf	989ms	15.7 MiB		3.1 KiB	2022-5-11 14:00:32
AC	oyf	997ms	15.7 MiB		3.1 KiB	2022-5-11 13:53:05
AC	oyf	1027ms	16.5 MiB		1 KiB	2022-5-12 13:25:52
AC	田峻麟	1055ms	20.9 MiB	C++11	707 Bytes	2024-1-30 20:11:03
AC	ZXL	1144ms	30.4 MiB	C++11	765 Bytes	2022-8-16 21:23:05
AC	oyf	1197ms	15.9 MiB		3.1 KiB	2022-5-11 14:00:21
AC	oyf	1305ms	15.7 MiB		1.1 KiB	2022-5-11 13:49:28
AC	Kaptree	1324ms	11.8 MiB		900 Bytes	2021-10-12 22:13:06
AC	oyf	1428ms	38 MiB		1.1 KiB	2022-5-11 13:46:05
AC	mibbp	1681ms	15.8 MiB		667 Bytes	2021-11-17 11:53:46
AC	oyf	1778ms	40.1 MiB		3.2 KiB	2022-5-11 14:01:29
AC	oyf	4867ms	77.9 MiB		1.5 KiB	2022-5-5 13:23:11
AC	ok one	4914ms	84.5 MiB	C++11	624 Bytes	2022-8-27 14:39:06
AC	lionsong	5248ms	16.2 MiB	C++11	620 Bytes	2022-9-2 14:40:25