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    Warning: count(): Parameter must be an array or an object that implements Countable in /home/customer/www/thegatebook.in/public_html/qa/qa-include/qa-theme-base.php on line 580

Warning: count(): Parameter must be an array or an object that implements Countable in /home/customer/www/thegatebook.in/public_html/qa/qa-include/qa-theme-base.php on line 177

Warning: count(): Parameter must be an array or an object that implements Countable in /home/customer/www/thegatebook.in/public_html/qa/qa-include/qa-theme-base.php on line 177

Warning: count(): Parameter must be an array or an object that implements Countable in /home/customer/www/thegatebook.in/public_html/qa/qa-include/qa-theme-base.php on line 177

Warning: count(): Parameter must be an array or an object that implements Countable in /home/customer/www/thegatebook.in/public_html/qa/qa-include/qa-theme-base.php on line 177

Warning: count(): Parameter must be an array or an object that implements Countable in /home/customer/www/thegatebook.in/public_html/qa/qa-include/qa-theme-base.php on line 177

Warning: count(): Parameter must be an array or an object that implements Countable in /home/customer/www/thegatebook.in/public_html/qa/qa-include/qa-theme-base.php on line 177

DSA - Grand Test -Q17


Warning: count(): Parameter must be an array or an object that implements Countable in /home/customer/www/thegatebook.in/public_html/qa/qa-include/qa-theme-base.php on line 177
+2 votes

Consider the following program:

#include <stdio.h>

int bar(int n){

  if(n <= 1){

  return 0;

  }

  else{

  return 1 + bar(n / 2);

  }

}

void main(){

  int i, k = 0;

  for(i = 1024; i>=1;i >>=1)

  k = k + bar(i);

  printf("%d",k);

}

The value printed by the program is ______

asked Aug 29, 2020 by gbeditor-2 (72,840 points)
reshown Sep 10, 2020 by gbeditor-2

1 Answer

+1 vote
 
Best answer

 

The for loop is always dividing i by 2 and 

bar function is calculation logn always.

k is storing all the logn for all those steps

k = log(1024) + log(512) + ... + log(2)

= 1 + 2 + 3 +... + 10

\frac{10(10+1)}{2} = 55

answered Sep 26, 2020 by tsshashankrustagi (11,240 points)
selected Sep 26, 2020 by deepak-gatebook
Answer:

Warning: count(): Parameter must be an array or an object that implements Countable in /home/customer/www/thegatebook.in/public_html/qa/qa-include/qa-theme-base.php on line 177

Warning: count(): Parameter must be an array or an object that implements Countable in /home/customer/www/thegatebook.in/public_html/qa/qa-include/qa-theme-base.php on line 177

Warning: count(): Parameter must be an array or an object that implements Countable in /home/customer/www/thegatebook.in/public_html/qa/qa-include/qa-theme-base.php on line 177
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