3 !+TD@sTddlmZddlmZddlmZddlmZdZdZddZ d d Z d d Z d S))division)print_function)deque)stderrz Sahand Sabazsahands@gmail.comcs\tdtdxJt|D]>\}}j|}djfdd|D}tdj||tdqWdS)NzCurrent watchlist:)filez, c3s|]}j|VqdS)N)clause_to_string).0c)instance=C:\Users\user\Documents\MATLAB\CS4300\A3\solvers\watchlist.py sz!dump_watchlist..z{}: {})printr enumerateliteral_to_stringjoinformat)r watchlistlwZliteral_stringZclauses_stringr )r r dump_watchlist s   rcCsBddtdt|jD}x |jD]}||dj|q$W|S)NcSsg|] }tqSr )r)r__r r r sz#setup_watchlist..r)rangelen variablesclausesappend)r rclauser r r setup_watchlists r c Csx||r||d}d}xV|D]N}|d?}|d@} ||dksP||| dAkr d}||d=||j|Pq W|s|rt||tdj|j|tdtdj|j|tddSqWdS) a  Updates the watch list after literal 'false_literal' was just assigned False, by making any clause watching false_literal watch something else. Returns False it is impossible to do so, meaning a clause is contradicted by the current assignment. rFNTzCurrent assignment: {})rzClause {} contradicted.)rrrrassignment_to_stringrr) r rZ false_literal assignmentverboserZfound_alternativeZ alternativevar r r update_watchlists,       r'N) __future__rr collectionsrsysr __author__Z __email__rr r'r r r r s