应该是输入顺序
by A_Sunny_Day @ 2020-12-20 13:47:38
输入顺序
by whhsteven @ 2020-12-20 13:48:28
我一直按照sum累计的顺序做，然后一直WA。。。QAQ
by 52wyd @ 2023-04-01 00:06:59