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QSORT会破坏序列原顺序吗?这是我的比较函数
int sort_func(const void *a,const void *b)
{
return (((struct item *)a)->inversions - ((struct item *)b)->inversions)>0 ?1:-1;
}
数组中的inversions全部置0;
调用qsort之后,顺序竟然变了;
比如之前是
A C G T
排序之后是
C G A T
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