adjacent；undirected edges(无向边)；Ancestor ；Quadratic probing；increments ；collisions；prime(素数)；Heaps ；liars；lying；statement
infix expression；precedences；operators；parentheses；set(集合)；Delayed ；to be qualified for a certificate；assignments；
prime number;guests；chain；segments；loops；Each；fold；halved;odd;even(奇偶数);alternating ；chess；placing；configuration；Recommendation；accessed(访问)
pivot基准；partition ；recommend ；intersections (顶点)；identical；one-way(单向)；type (打字)；detected；partition ；disjoint ；denote
Palindromic Number；reversible；via；compute ；generated ；corresponds ；compiler；interval区间；boundaries ；graduate schools；entrance ；quota ；gets rejected by；
we use a negative sign to represent girls.Contact ； test level；institutions；lower case；case insensitive；clique ；permutation
combinatorial optimization;Recruitment ;giant ;constant ;consecutive ；threthold；monitoring ；clusters ；interval ；optimal ；commas
polynomial;zero；consistent；equation ；betting ；Triple ；standard notation；permutation；as squared as possible；suffix
Coupon ；bonus ；Course List；lottery ； bets on；procedure ；Shuffling ；mirror image；Stripe ；sewing ；Dominant；proportional
annual ；inventory ；carriage；regular ；suffix ;rational ；Deduplication ；partition (reverse，diverse,invert);infix expression
is incident to(相关联)