delete pics to save space

history_source/信息学奥赛一本通/2.7.11.cpp

@@ -0,0 +1,25 @@
+#include<cstdio>
+#include<algorithm>
+using std::sort;
+int main()
+{
+	int n,m;
+	scanf("%d",&n);
+	int a[n],*p;
+	for(int i=0;i<n;i++) scanf("%d",a+i);
+	sort(a,a+n);
+	scanf("%d",&m);
+	int le=0,ri=n-1;
+	while(le<ri)
+	{
+		if(a[le]+a[ri]==m)
+		{
+			printf("%d %d\n",a[le],a[ri]);
+			return 0;
+		}
+		if(a[le]+a[ri]<m) le++;
+		else ri--;
+	}
+	printf("No\n");
+	return 0;
+}