\\M0BASL30;\M1BASI30;\M2SUB;\M3NGR40;\M4BDB30;\. \F3\CCOMPUTER SCIENCE DEPARTMENT \CSTANFORD UNIVERSITY \CCS 206 COMPUTING WITH SYMBOLIC EXPRESSIONS FALL 1973 \CFINAL EXAM \CSolutions to Problems \F0 1. \F1alt[u,m,n] ← \F4if n \F1u \F4then \F0NIL \F4else if \F1m=1 \; \F4then a \F1u . alt[\F4d \F1u,n,n] \F4else \F1alt[\F4d \F1u,m-1,n].