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Consider the following program fragment for reversing the digits in a given integer to obtain a new integer. Let n = D1D2…Dm
int n, rev; 
rev = 0; 
while (n > 0) 

   rev = rev*10 + n; 
   n = n/10; 
}
The loop invariant condition at the end of the ith iteration is: 
  • a)
    n = D1D2….Dm-i and rev = DmDm-1…Dm-i+1
  • b)
    n = Dm-i+1…Dm-1Dm and rev = Dm-1….D2D1
  • c)
    n != rev
  • d)
    n = D1D2….Dm and rev = DmDm-1…D2D1
Correct answer is option 'A'. Can you explain this answer?
Most Upvoted Answer
Consider the following program fragment for reversing the digits in a ...
We can get it by taking an example like n = 54321. After 2 iterations, rev would be 12 and n would be 543.
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Community Answer
Consider the following program fragment for reversing the digits in a ...
D3...Dk be the given integer, where Di represents the ith digit.

Reverse = 0
While n > 0
LastDigit = n % 10
Reverse = Reverse * 10 + LastDigit
n = n / 10
End While
Return Reverse

This program fragment works by repeatedly extracting the last digit of the given integer using the modulo operator (n % 10) and adding it to the reversed integer (Reverse) by multiplying it by 10 and then adding the last digit. Finally, it updates the given integer (n) by removing the last digit (n / 10). This process is repeated until all the digits have been reversed.

For example, if n = 12345, the program fragment would reverse the digits to obtain Reverse = 54321.
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Consider the following program fragment for reversing the digits in a given integer to obtain a new integer. Let n = D1D2…Dmint n, rev;rev = 0;while (n > 0){ rev = rev*10 + n; n = n/10;}The loop invariant condition at the end of the ith iteration is:a)n = D1D2….Dm-i and rev = DmDm-1…Dm-i+1b)n = Dm-i+1…Dm-1Dm and rev = Dm-1….D2D1c)n != revd)n = D1D2….Dm and rev = DmDm-1…D2D1Correct answer is option 'A'. Can you explain this answer? for Computer Science Engineering (CSE) 2025 is part of Computer Science Engineering (CSE) preparation. The Question and answers have been prepared according to the Computer Science Engineering (CSE) exam syllabus. Information about Consider the following program fragment for reversing the digits in a given integer to obtain a new integer. Let n = D1D2…Dmint n, rev;rev = 0;while (n > 0){ rev = rev*10 + n; n = n/10;}The loop invariant condition at the end of the ith iteration is:a)n = D1D2….Dm-i and rev = DmDm-1…Dm-i+1b)n = Dm-i+1…Dm-1Dm and rev = Dm-1….D2D1c)n != revd)n = D1D2….Dm and rev = DmDm-1…D2D1Correct answer is option 'A'. Can you explain this answer? covers all topics & solutions for Computer Science Engineering (CSE) 2025 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Consider the following program fragment for reversing the digits in a given integer to obtain a new integer. Let n = D1D2…Dmint n, rev;rev = 0;while (n > 0){ rev = rev*10 + n; n = n/10;}The loop invariant condition at the end of the ith iteration is:a)n = D1D2….Dm-i and rev = DmDm-1…Dm-i+1b)n = Dm-i+1…Dm-1Dm and rev = Dm-1….D2D1c)n != revd)n = D1D2….Dm and rev = DmDm-1…D2D1Correct answer is option 'A'. Can you explain this answer?.
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