#include<stdio.h> int f(int,int); int main() { printf("%d",f(20,1)); return 0; } int f(int n,int k) { if(n==0) return 0; else if(n%2)return f(n/2,2*k)+k; else return f(n/2,2*k)-k; } how this program is working and generating output as 9....?

1 Answers  

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what is the flow of execution in cprogram? ex:printf();,scanf();

2 Answers  

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which will be first in c compiling ,linking or compiling ,debugging.

3 Answers   Sonata,

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what is d pitfalls of registers variables

3 Answers   TCS,

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What is c language used for?

0 Answers  

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A program to allow an input operand and operator from the operator and read on the display and output operand.

0 Answers  

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How to delete a node from linked list w/o using collectons?

0 Answers   Zycus Infotech,

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What does %2f mean in c?

0 Answers  

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How to reverse a string using a recursive function, without swapping or using an extra memory?

31 Answers   Cisco, Mind Tree, Motorola, Ophio, Sony, TCS, Wipro,

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2. What does static variable mean?

2 Answers  

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can we store values and addresses in the same array? explain

3 Answers   TCS,

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whether itis a structured language?

1 Answers   Microsoft,

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