源程序在这

gdb 报的错误是这个

Thread 1 received signal SIGSEGV, Segmentation fault.
0x00007ff613c72c49 in FHQTreap::pushdown (rt=2142477193) at .cpp:44
Python Exception <class 'UnicodeDecodeError'>: 'utf-8' codec can't decode byte 0xbf in position 8: invalid start byte
44              if(tree[rt].laz)

很好奇为什么会报 Python 的错误