delete pics to save space

history_source/信息学奥赛一本通/2.6.8.cpp

@@ -0,0 +1,34 @@
+#include<iostream>
+#include<algorithm>
+struct Point
+{
+	int x,y;
+};
+Point p[105],ans[105];
+int len=0,n;
+bool check(int idx)
+{
+	for(int i=0;i<n;i++)
+		if(i!=idx)
+			if(p[i].x>=p[idx].x&&p[i].y>=p[idx].y) return 0;
+	return 1;
+}
+bool cmp(Point a,Point b)
+{
+	return (a.x<b.x);
+}
+using namespace std;
+int main()
+{
+	scanf("%d",&n);
+	for(int i=0;i<n;i++) cin>>p[i].x>>p[i].y;
+	for(int i=0;i<n;i++) if(check(i)) ans[len++]=p[i];
+	sort(ans,ans+len,cmp);
+	for(int i=0;i<len;i++)
+	{
+		if(i>0) printf(",");
+		printf("(%d,%d)",ans[i].x,ans[i].y);
+	}
+	printf("\n");
+	return 0;
+}