Programming Interview Questions

2

of 2 votes

0
Answers
A list of relation is given. We need to express the relation in a single line with the largest unit leftmost.
eg.
a = 10b
b=5c
c = 20a
e=20d

Output should be:
a=10b=25e=50c=500d
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N/A
2

of 2 votes

0
Answers
A list of relation is given. We need to express the relation in a single line with the largest unit leftmost.
eg.
a = 10b
b=5c
c = 20a
e=20d

a=10b=25e=50c=500d
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Algorithm
0

of 0 votes

11
Answers
I 've table book containing 2 columns
title and price
there are a number of books there with different prices
what is result of the following query

select title from book as b where (select count(*) from book as t where t.price>b.price) < 5
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SQL

1 Answer What is the output of this SQL query?
I 've table book containg 2 columns
title and price
there are a number of books there with different prices
what is result of the following query

select title from book as b where (select count(*) from book as t where t.price>b.price) < 5
- accessdenied January 14, 2013 | Flag | PURGE

Page:

1

Comment hidden because of low score. Click to expand.

0

of 0 vote

Use recursion

char result [50];
int i=0;

void itoa(int a){
if(!a) return;
else 
itoa(a/10);
result [i++]= a%10+'0';
}

Check for negative and zero before calling recursion and make changes in the result array accordingly.

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Comment hidden because of low score. Click to expand.

0

of 0 vote

Yes, the answer is : it will select 5 most expensive books.
But how the query is running i m confused. Can anyone explain

- accessdenied January 15, 2013 | Flag Reply

Comment hidden because of low score. Click to expand.

1

of 1 vote

c=0 is wrong... I sorry actually i forgot to multiply before...
15 is correct..
i checked it

- accessdenied September 15, 2012 | Flag Reply

Comment hidden because of low score. Click to expand.

0

of 0 vote

how come...same approaches at same time.. :)

- accessdenied September 12, 2012 | Flag Reply

Comment hidden because of low score. Click to expand.

-1

of 1 vote

I don't know my approach is efficient..but it is an approach..so tell me
take 3 vars count_0, count_1, count_2
traverse the list once to get each total count numbers
traverse the list and change the values simply...
i know it's a bit funny approach...nothing sorting or swapping..so tell me a better one
But it's O(n)

- accessdenied September 12, 2012 | Flag Reply

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