C语言程序 距离最近

#include
#include
#include
//1417
int main()
{
int n,i,t=0;
scanf("%d",&n);
int a[n];
for(i=0; i scanf("%d",&a[i]);
int *p;
p=a;
int x;
scanf("%d",&x);
for(i=1; i {
int cha=0,ch=0;
ch=(int)abs(x-p);
cha=(int)abs(x-(p+1));
if(ch<=cha)
{
t=*p;
p=(p+1);
*(p+1)=t;
}
p++;
}
printf("%dn",*p);
return 0;
}