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# CS502 Assignment No.1

Question # 1: 10 Marks

For the following code snippet, provide line-by-line analysis and construct function T(n) that give the runtime of this code snippet as a function of "n". Also determine the big-Oh of Best-case, Worst-case and Average case for this code snippet. [Marks: 4+2+2+2]

Search(A, Key)
i←1
while (A[i] ≠ key) and (i ≤ length[A])
i←i+1
if ( i≤ length[A])
return true
else
return false

Question # 2: 10 Marks

Find the 19thsmallest element from the array given below using Selection Algorithm (Sieve Technique);you are required to provide complete procedure along with array indexing and their values at each step.

933, 782, 116, 276, 904, 353, 416, 157, 277, 583, 525, 208, 269, 98, 181, 859, 573, 225, 526, 627, 631, 590, 257, 402, 335

Note: pivot must be the last element of the array in each iteration (i.e. q = r)

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### Replies to This Discussion

thanks bro or han yi array ki form main likhna hay

you can write it vertically or in horizontally. in array form or in boxes whatever what you feel easy you can do.

tou q.1?

uski abi smj ni a rhi ma try kr rha solve krne ki.
i'll share if done.

thanks _dastgeer

correct solution of cs502

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itni mushkil hai kch pta nai chal raha question 1 k bary mein

Search(A, Key)

i←1

1 access

while (A[i] ≠ key) and (i ≤ length[A])

n times

i←i+1

1 access

if ( i ≤ length[A])

n times

return true

1 access

else

return false

1 access

T(search) = 1+ 2(n+1)+1+1

=5+2n

so Big O notation will be O(n)

bhai ye solution hai kiya????

check it...

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thanks Naveed Qureshi

Naveed bhai es mai se kon sa solutoin thk ha? apka ya aysha ka?

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