Which one of the following permutations can be obtained the output using stack assuming that the input is the sequence 1,2,3,4,5 in that order ?
Overall Stats
Answers
34521 is right answer

Log in to add a comment
I agree with the answer is 54321

Log in to add a comment
Some one who have posted this answer has misguided us

Log in to add a comment
http://www.emis.de/journals/EJC/Volume_13/PDF/v13i1r68.pdf

Log in to add a comment
52314 is the correct ans. for using permutations rules

Log in to add a comment
this is correct answer first push 5,4,3 in the stack and then pop them ns we get 3,4,5 and then push 2,1 and we get 1,2 so answer is 3,4,5,1,2

Log in to add a comment
yup R8 54321

Log in to add a comment
i think there is something wrong

Log in to add a comment
how it can be?

Log in to add a comment
correct answer is 5,4,3,2,1 because stact is a LIFO device

Log in to add a comment
Serkie Mekonnen from Dessie, Ethiopia is saying 1,5,2,3,4 is correct answer
Ashis Nayak is saying 5,4,3,1,2 is correct answer
Mu Nu is saying 5,4,3,1,2 is correct answer
Narender Kumar is saying 3,4,5,2,1 is correct answer
Marem Husen from Al Musayyib, Iraq is saying 3,4,5,2,1 is correct answer
Related Questions
The following sequence of operation is performed on stack : push(1),push(2),pop,push(1),push(2),pop,pop,pop,push(2),pop. The sequence of popped out values are ?
 [A] 2,2,1,1,2
 [B] 2,2,1,2,2
 [C] 2,1,2,2,1
 [D] 2,1,2,2,2
Given two sorted lists of size m and n respectively.The number of comparisons needed in the worst case by the merge sort algorithm will be?
 [A] mn
 [B] max(m,n)
 [C] min(m,n)
 [D] m+n1
The postfix expression for * + a b  c d is?
 [A] ab + cd  *
 [B] ab cd +  *
 [C] ab + cd * 
 [D] ab +  cd *
The initial configuration of the queue is a,b,c,d (a is the front end). To get the configuration d,c,b,a one needs a minimum of ?
 [A] 2 deletions and 3 additions
 [B] 3 additions and 2 deletions
 [C] 3 deletions and 3 additions
 [D] 3 deletions and 4 additions