How to Find Intersection of Two Arrays in C++?
Question: Write a function to return the intersection of two arrays: For example, the intersection of and returns . The return array should only contain unique numbers and the …
Author: ACMer
Dynamic Programming – How many ways to connect the pipes?
This is an interesting problem that can be solved using Dynamic Programming (DP). The question is to count how many ways to connect the pipes like the following (Pipes …
How to Whitelist The CloudFlare IPs?
You probably need to whitelist the cloudflare IPs in order to enable their ‘Always-Online’ feature. The CloudFlare IPs can be found in this list: https://www.cloudflare.com/ips/ he IP addresses listed …
What are the user-agent for Cloudflare?
Question： What are the user-agent for Cloudflare? Cloudflare does not have our own User-Agent except for our ‘Always Online’ crawler. We forward to visitors User-Agent through our proxy. The …
How to Check Server Response Time using cURL command line?
Open any linux command line shell, and type in the following and hit return (remember to substitute the domain URL). curl -o /dev/null -s -w %{time_total}\\n http://helloacm.com Example response: …