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Vstupni testy na americke pravnicke skoly obsahuji radu logickych otazek (https://lsac.org/docs/default-source/jd-docs/sampleptjune.pdf). U testu je povolene delat si poznamky. Misto intuitivniho pristupu bych rad pouzil nejake systematicke reseni a protoze otazky nejsou predem zname, je treba byt pripraven primo na miste zvolit spravny "algoritmus" a nezamotat se v mentalnich procesech nebo nejakych zdlouhavych iteracich. Momentalne jsem s pripravami u otazky 12 na strane 5 vzoroveho testu (viz odkaz vyse):

Zadani: "Questions 11–17 A cruise line is scheduling seven week-long voyages for the ship Freedom. Each voyage will occur in exactly one of the first seven weeks of the season: weeks 1 through 7. Each voyage will be to exactly one of four destinations: Guadeloupe, Jamaica, Martinique, or Trinidad. Each destination will be scheduled for at least one of the weeks. The following conditions apply to Freedom’s schedule:

Jamaica will not be its destination in week 4.

Trinidad will be its destination in week 7.

Freedom will make exactly two voyages to Martinique, and at least one voyage to Guadeloupe will occur in some week between those two voyages.

Guadeloupe will be its destination in the week preceding any voyage it makes to Jamaica.

No destination will be scheduled for consecutive weeks."

Otazka: "12.Which one of the following CANNOT be true about Freedom’s schedule of voyages?

(A)Freedom makes a voyage to Trinidad in week 6.

(B)Freedom makes a voyage to Martinique in week 5.

(C)Freedom makes a voyage to Jamaica in week 6.

(D)Freedom makes a voyage to Jamaica in week 3.

(E)Freedom makes a voyage to Guadeloupe in week 3. "

Nemyslim ze by bylo realne v duchu iterovat postupne vsechna pravidla pro kazdou z odpovedi , ale mozna by se dala v rychlosti nacrtnout matrice a podle ni pak odpovedet otazky. Otazkou je, kolik variant te matrice muze existovat. Jednu jsem udelal, v zavorkach jsou destinace kam podle danych pravidel nelze v dany tyden plout (tedy jestli tomu spravne rozumim):

(cisla oznacuji tydny, pismena zastupuji destinace - G=Guadeloupe atd.)
1 [G] [J]   M   T
2  G  [J] [M] [T]
3 [G]  J   M   T
4  G  [J] [M] [T]
5 [G]  J   M   T
6  G  [J] [M] [T]
7  G   J   M   T

Tak premyslim jestli je to s tou matrici vubec spravny a nejlepsi pristup, jestli je vyplnena spravne a jak ji spravne sestavit, navic kdyz skutecna testovaci otazka bude velmi pravdepodobne postavena jinak. Nemeli byste nekdo nejake tipy jak na to? Predem diky za pripadne napady.