杭电2034 人见人爱A-B ,欢迎大家点评,帮忙纠正陋习
#include <stdio.h>
#define N 100
int main()
{
int k;
int n,m,i,j;
int a[N];
int b[N];
int temp;
while(scanf("%d%d",&n,&m)!=EOF)
{
int num = 0;
if (n == 0 && m == 0)
break;
for (i=0;i<n;i++)
scanf("%d",&a[i]);
for (i=0;i<m;i++)
scanf("%d",&b[i]);
for (i=0;i<n-1;i++)
for(j=0;j<n-1-i;j++)
{
if(a[j]>a[j+1])
{
temp = a[j];
a[j] = a[j+1];
a[j+1] = temp;
}
}
for(i=0;i<n;i++)
{
k = 1;
for (j=0;j<m;j++)
{
if (a[i] == b[j])
{
k = 0;
continue;
}
}
if (k)
{
//if (num != 0)
// printf(" ");
printf("%d ",a[i]);
num++;
}
}
if (num == 0)
printf("NULL");
printf("\n");
}
return 0;
}