
GrileGrafuriNeorientate
Authored by Chis Lucian
Computers
11th Grade
Used 9+ times

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9 questions
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1.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
Care este numarul maxim de noduri de grad 3 ıntr-un graf neorientat cu 5 noduri?
2
3
4
5
2.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
Fie un graf neorientat in care fiecare nod are un numar par si nenul de vecini, astfel ıncât nu exista doua noduri având acelasi numar de vecini.
Care dintre urmatoarele variante ar putea reprezenta numarul de muchii ale unui astfel de graf?
10
15
16
nu exista un astfel de graf
3.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
Se considera un graf neorientat cu 8 vârfuri numerotate de la 1 la 8 si urmatoarele muchii: {1,7},{1,8},{3,4},{3,5},{3,6},{3,7},{4,7},{5,6},{5,8},{6,7},{6,8},{7,8}. Care este numarul minum de culori cu care pot fi colorate vârfurile grafului astfel ıncât oricare doua vârfuri adiacente sa aiba culori diferite?
2
3
4
8
4.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
Un graf este reprezentat prin matricea de adiacenta cu 8 linii si 8 coloane, formata din 0 si 1, are urmatoarele trei proprietati:
(i) prima linie contine un singur element cu valoarea 1;
(ii) linia j contine de doua ori mai multe elemente nenule decât linia j−1, pentru orice j ∈ {2,3,...,8};
(iii) ultima linie contine un singur element cu valoarea 0.
Care este numarul total de elemente cu valoarea 0 din matrice?
777
769
528
nu exista o astfel de matrice
5.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
Care dintre cele patru variante de mai jos nu poate reprezenta secventa gradelor vârfurilor unui graf
neorientat?
(1,1,1,2,2,3)
(1,1,3,3,3,5)
(1,1,2,3,4,5)
(1,4,4,4,4,5)
6.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
Un graf neorientat are 10 muchii și este conex. Numărul maxim de noduri ale sale este:
8
9
10
11
7.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
Care este numarul minim de noduri pe care il poate contine un graf neorientat cu 50 de muchii, si in care 15noduri sunt izolate?
25
26
65
66
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