sum[0]赋值了吗？（第二十行i=1时）
by easonlee @ 2020-02-01 12:04:53
是不是要加sum[0]=0?
by easonlee @ 2020-02-01 12:05:48
~~你可以用暴力啊，开O2优化80分……~~
by pengzhaozhao @ 2020-04-06 20:40:08
@[pengzhaozhao](/user/222348) ~~暴力的我开O2拿了90~~
by SnowLin @ 2021-07-17 16:50:30
暴力的我开O2+特判拿了95
by _myr_ @ 2021-09-03 18:20:05