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GATE 1998
December 6, 2023
GATE 1998
December 6, 2023
GATE 1998
December 6, 2023
GATE 1998
December 6, 2023

GATE 1998

Question 23

How many sub strings of different lengths (non-zero) can be found formed from a character string of length n?

A
n
B
n2
C
2n
D
Question 23 Explanation: 
Let us consider an example S = {APB}
Possible sub-strings are = {A, P, B, AP, PB, BA, APB}
Go through the options.
Option D:
n(n+1)/2 = 3(3+1)/2 = 6
Correct Answer: D
Question 23 Explanation: 
Let us consider an example S = {APB}
Possible sub-strings are = {A, P, B, AP, PB, BA, APB}
Go through the options.
Option D:
n(n+1)/2 = 3(3+1)/2 = 6

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