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原因就是你吧long写成了lont, overIn Reply To:请问,qsort的一些用法,long int和int怎么不一样 Posted by:hanajiang at 2006-08-01 11:53:47 > 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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