delete pics to save space

history_source/信息学奥赛一本通/2.5.10.cpp

@@ -0,0 +1,47 @@
+#include<cstdio>
+int n,a[15],len;
+int gcd(int a,int b)
+{return b==0?a:gcd(b,a%b);}
+struct node
+{
+	int v;
+	node *next;
+	node()
+	{
+		v=-1;
+		next=0;
+	}
+};
+node* group[15],*p,*t;
+int main()
+{
+	scanf("%d",&n);
+	int i,j;
+	for(i=0;i<n;i++) scanf("%d",a+i);
+	len=1;
+	group[0]=new node;
+	group[0]->v=a[0];
+	for(i=1;i<n;i++)
+	{
+		for(j=0;j<len;j++)
+		{
+			p=group[j];
+			while(p!=0)
+			{
+				if(gcd(p->v,a[i])>1) goto addr1;
+				p=p->next;
+			}
+			t=new node;
+			t->v=a[i];
+			t->next=group[j];
+			group[j]=t;
+			goto allright;
+			addr1:;
+		}
+		group[len]=new node;
+		group[len++]->v=a[i];
+		allright:;
+	}
+	printf("%d\n",len);
+	return 0;
+}