求求给个测试数据
by user1542043226 @ 2022-01-04 15:34:24
测试数据：
4 1
2 3 1 1
by 编码落寞 @ 2022-01-04 16:36:17
@[编码落寞](/user/557751) 感谢兄弟，我后面x,y弄反了
by user1542043226 @ 2022-01-07 18:44:17
同问题，已过，栓Q
by Greenzhe @ 2022-09-27 06:56:08