### Day 27: Important Question

Hello Dear Students,
Hope you all are doing good.

Aaj hum ek important question ko understand karenge jo tree data structure ka question hai and last 2 times se exam mein a raha hai. Ye question important and very easy hai.

Let's get started...

Question is-

Question- Here rectangle represents Maximum and Circle represents Minimum. The value of root node of the given tree is?
Option A- 3
Option B- 6
Option C- 7
Option C- 5

So, ise solve karna is very simple and easy. Hume root node ki value ko find out karna hai, so hum kaise karenge?
Firstly, sabse nicche wali nodes ( child nodes) ko dekhenge. Ab, left se shuru karte hain,
Note:- Rectangle means maximum value from the child nodes and circle means minimum value from the child nodes.
• So, 4 and 6 mein se maximum is 6, So root rectangle mein 6 a jayega.
• And aise hi 3 and 7 mein se maximum 7 hai so root rectangle mein 7 a jayega.
• Ab right mein, 5 and 2 mein se 5 is maximum so uske root rectangle mein 5 a jayega.
• And 2 and 3 mein se 3 is maximum value, so 3 a jayega root rectangle ki value.

Now, above tree ab aise hoga. So iske root nodes ab circle mein hain, so minimum values fill hongi.
• 6 and 7 mein se minimum is 6. So iske circle root node mein 6 ayega.
• 5 and 3 mein se minimum is 3. So, iske circle root node mein 3 ayega.

So, above tree mein jab values fill ho jayengi to wo aise hoga. Ab root node mein value ko fill karna hai, so root node is rectangle means maximum, ab 6 and 3 mein se jo bhi maximum hai wo root node mein ayega. So, 6 is maximum thus the root node has value of 6.

So, The answer is Option B.

Aise 2 questions previous year question papers se aapko daily test mein diye ja rahe hain. So, do give the test for good preparations.

Best of Luck Students,
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Regards,
UGC NET EXPERTS