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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)
Correct answer is option 'D'. Can you explain this answer?
Verified Answer
How many sub strings of different lengths (non-zero) can be found form...
assuming an string of length n provided all alphabets are distinct..
no of strings of length 1 = n
no of strings of length 2 = n-1
no of strings of length 3 = n-2 .
.
.
no of string of length n = 1
total = n + (n -1) + (n - 2) + (n - 2) + ..... + 1
= n(n+1)/2
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How many sub strings of different lengths (non-zero) can be found form...
assuming an string of length n provided all alphabets are distinct..
no of strings of length 1 = n
no of strings of length 2 = n-1
no of strings of length 3 = n-2 .
.
.
no of string of length n = 1
total = n + (n -1) + (n - 2) + (n - 2) + ..... + 1
= n(n+1)/2
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How many sub strings of different lengths (non-zero) can be found formed from a character string of length n ?a)nb)n2c)2nd)Correct answer is option 'D'. Can you explain this answer?
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