The 192.168.1.0/24 IP is a network address, it's not a usable IP. And 192.168.10.0/50 is not valid since /50 is not a valid subnet mask. Maximum subnet mask is /32.
Instead you can use 192.168.1.1/24 and 192.168.1.2/24. You could connect the two PCs to a switch using 2 straight-through UTP cables or via one crossover UTP cable. Here is a good start for subnetting