评测信息
运行ID: 30885
Traceback (most recent call last):
File "src.py", line 28, in <module>
main()
File "src.py", line 26, in main
swap(ls,maxp,minq)
File "src.py", line 18, in swap
t=ls[m]
TypeError: list indices must be integers or slices, not NoneType