Pie  |  9.0.0_r8
文本文件  |  4行  |  235 B 

Exception in thread "main" java.lang.NullPointerException: Attempt to invoke direct method 'void Main.doStuff(int, int[][], java.lang.String, java.lang.String[][])' on a null object reference
	at Main.main(Main.java:26)
exit status: 1