dev

It's strange that the program has a segmentation fault when the node number increases to 3000, it seems that the array is too large, but why don't the original versions have this problem.
seems, not, after downsizing the array tmpSet, the problem still occurrs.

there is no Array container in STL, and Vector is regarded as a replacement, but obviously the replace of the array with Vector leads to regressive performance

the segmentation fault still happens, and I will leave this as a tomorrow's task