I have download all the problems of UVA in pdf and put them in a tar file. Below is the link from which you can also download all the problem pdf file. I hope this might be useful for you to access them offline.
Note : This tar file does not contain the problems which are not available in pdf form on the server.
Download from here
Note : This tar file does not contain the problems which are not available in pdf form on the server.
Download from here