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请问,qsort的一些用法,long int和int怎么不一样如果用long int,就编译通不过,总是说cmp不对,如果把下面的所有的long int改为int就ac了,不明白为什么,明白的指点一下吧 #include <iostream.h> #include <stdlib.h> lont int cmp(const void *a,const void *b) { return *(lont int *)a - *(long int *)b; } void main() { int N; cin>>N; long int *a=new int [N]; for(int i=0;i<N;i++) cin>>a[i]; qsort(a,N,sizeof(a[0]),cmp); cout<<a[N/2]<<endl; } Followed by:
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