CSAW CTF Quals 2018 The Quals for the CSAW CTF happened from 14th-16th September 2018, I participated with my team eavesdroppers from the India region. After the 48 hour toil, we ended up 8th Regionally and 87th Globally. Challenges bin_t - Misc On connecting to the given server and port using nc misc.chal.csaw.io 9001, we receive a list of integers and and instructions to follow, i.e, insert the numbers in an AVL Tree and return the pre order traversal list of the balanced AVL Tree.