IP to CIDR
Given a range of IPv4 addresses, return the minimal list of CIDR blocks that cover the entire range. Each block is represented as `ip/prefix` where the prefix length indicates how many leading bits are fixed.
Given a range of IPv4 addresses, return the minimal list of CIDR blocks that cover the entire range. Each block is represented as `ip/prefix` where the prefix length indicates how many leading bits are fixed.