how to find the number of possible tree in the given tree.

Answers were Sorted based on User's Feedback



how to find the number of possible tree in the given tree...

Answer / baskerdearer

number of possible tree = (2 power n) - n.
for example:
A tree contain three node.
so n=3.
possible tree = 8 - 3 = 5.

Is This Answer Correct ?    179 Yes 26 No

how to find the number of possible tree in the given tree...

Answer / mandeep

the formula is (2^n)-n.
where n=no.of nodes

Is This Answer Correct ?    67 Yes 15 No

how to find the number of possible tree in the given tree...

Answer / vikram_tp

you all are going wrong...
the formula which u have given is only working when n=2 or 3..
bt when n=4 the ans should be 14 not 12
when n=5 ans is 42 and not what comes by the formula...
so there isnt any formula for this..u have to count then by generating the trees by urself...

Is This Answer Correct ?    18 Yes 0 No

how to find the number of possible tree in the given tree...

Answer / m.vinothkumar

no. of possible trees=(2^n)-n.
where n=no.of nodes

I FOUNDED THIS CORRECT FORMULA FROM GRAPHICS FROM
MATHEMATICS BOOK

Is This Answer Correct ?    26 Yes 9 No

how to find the number of possible tree in the given tree...

Answer / himani

(2^n)-n. where n is no. of nodes

Is This Answer Correct ?    20 Yes 7 No

how to find the number of possible tree in the given tree...

Answer / xyz

2^n-n

Is This Answer Correct ?    8 Yes 8 No

how to find the number of possible tree in the given tree...

Answer / sudip

If there are 3 nodes A,B and C. In which A is root and B and
C are it's left and right child...
Then if we want to count the no. of tree..then..

A A A A-alone, B -alone and
/ \ / \ C-alone and the last
B C B C one is null tree.


I think there will be 7 subtrees if we null is subtree then,..

no. of tree = 2^n - 1.

Is This Answer Correct ?    1 Yes 14 No

how to find the number of possible tree in the given tree...

Answer / rohit

Question is wrong XXXX
it should be how to find no. of distinct binary tree ????

ANSWER IS--- (1/(n+1))*2nCn

Is This Answer Correct ?    6 Yes 22 No

how to find the number of possible tree in the given tree...

Answer / tauqueer

2^n-1
if n=3 then
answer= 2^3-1=7.

example..
1
2 2
3/ \3 3/ \3

Is This Answer Correct ?    4 Yes 20 No

how to find the number of possible tree in the given tree...

Answer / gaurav tripathi

2n-n

Is This Answer Correct ?    3 Yes 22 No

Post New Answer

More Data Structures Interview Questions

1) Program A and B are analyzed and found to have worst- case running times no greater than 150nlog2n and n2 respectively.Answer the folloWing questions if possible.. i) which program has the better guarantee on the running time,for larger values of n(n>10000) ? ii) which program has the better guarantee on the running time,for small values of n(n<100) ? iii) which program will run faster on average for n =1000 2) wRite a program to compute the number of collisions required in a long random sequence of insertions using linear probing ,quadratic probing and double hashing 3) what is the optimal way to compute A1 A2 A3 A4 A5 A6 where the dimensions of the matrices are A1:10*20 A2 : 20 * 1 A3 : 1 * 40 A4 : 40*5 A5 : 5 * 30 A6 : 30 X 15

5 Answers   KPIT,


How many times is merge sort called?

0 Answers  


Which sorting algorithm is used in collections sort?

0 Answers  


Let the G be a graph with 100 vertices numbered 1 to 100 Two vertices i and j are adjecnt if | i-j| =8 or | i-j| =12. The Number of connected components in G is ?

4 Answers  


Do you know how to find if linked list has loop?

0 Answers  


What is homogeneous array?

0 Answers  


What is the difference between null and void?

0 Answers  


what are the applications of Linked Lists?

0 Answers  


Differentiate among cycle, path, and circuit?

0 Answers  


How do treesets work internally?

0 Answers  


sir plz. send me a bunch of questions related to this topic which may help me in campus selection

1 Answers   ABC,


Can a stack be described as a pointer? Explain.

0 Answers  


Categories