用free()释放内存后还是提交时不输出

Compile OK!
We only display the pre 3000 bytes.
Testcase: 0 Wrong Answer
Datain:
4
A B C D
6
1 2 3 4 5 6
The white space means how many lines we have here.
Your Output:

Our Output:
A B C D 1 2 3 4 5 6

提交后系统出现这样的界面，不显示我的输出，是个啥错呢