TRAVERSAL

Before
1: S
nat, graph, tree, path, list, first
2: SU
order, during
4: USUU
directory
5: UUSUU
directory
After
1: S
path, time, through
2: SU
order
Surrounder Phrases
recursive algorithm, algorithms, functions, procedure, method, structure, methods, process, path, tree, operation, operations, techniques, patternsgraph algorithms, algorithm, structure, using, methoddirectory tree, structure, path, paths, list, using, operationsthree times, orders, methods, paths, visits, algorithms, functions, strategies, sequencescomplete list, graph, sequence, directory, sequences, code, path, algorithmnetwork firewall, structure, algorithms, directory, operations, link, paths, graph, operation, algorithm, using, functions, pathsimple recursive, algorithm, method, procedure, algorithms, graph, network, mechanism, sequence, operation, techniques, structure, methods, keyboard, process, operations, sequences, strategy, patterns, paths, list, functions, strategies, path, codetree algorithm, structure, algorithms, graph, networkprocedure code, usingpath algorithm, through, algorithms, method, graph, tree, forward, downclockwise sequence, order, throughbackward algorithm, through, path, link, state, sequence, down, methodfirst time, nat, three, orderpaths throughdown list, throughtimes during, clockwisecode sequences, sequence, directory, paths, usingcost functions, method, structure, pathsalgorithm usingusing recursive, keyboard, techniques, simple, algorithms, methods, graph, natright path, down, throughalgorithms usingkeyboard functions, operation, techniques, operations, code, usingsecond method, time, order, mechanism, strategy, operation, graph, recursiveforward link, backward, path, through, algorithm, pathsoperations strategy, during, usingoperation code, sequences, sequence, using, procedurefirewall usingsingle tree, firewall, operation, link, path, graph, directory, mechanism, network, method, keyboard, sequencesequences usingmethod usingits operations, operation, functions, path, first, structuretechniques usingstate space, visitsduring operation, visits, timesvisits duringmethods usingstructure functionsmechanism throughthrough its, spacespace operationstime during, sequence, algorithmsequence patternslist three, directorylink path, state, mechanism, functionsfunctions usingprocess through