delete pics to save space

history_source/挑战程序设计竞赛/2.2.4.1.cpp

@@ -0,0 +1,35 @@
+#include<cstdio>
+#include<algorithm>
+using namespace std;
+int r,n,x[1005];
+void solve()
+{
+	sort(x,x+n);
+	static int i,ans,s,p;
+	i=ans=0;
+	while(i<n)
+	{
+		s=x[i++];
+		while(i<n&&x[i]<=s+r) i++;
+		p=x[i-1];
+		while(i<n&&x[i]<=p+r) i++;
+		ans++;
+	}
+	printf("%d\n",ans);
+}
+void init()
+{
+	scanf("%d%d",&r,&n);
+	if(r==-1&&n==-1) exit(0);
+	static int i;
+	for(i=0;i<n;i++) scanf("%d",x+i);
+}
+int main()
+{
+	while(true)
+	{
+		init();
+		solve();
+	}
+	return 0;
+}