I was asked 3-4 coding snippets and questions related to static, pass by reference/value, pointers, heap and stack memory allocations. function calls, data types. Implement a function body for a multiplier without any multiplication operation (also to improve my solution in terms of performance)

Question

I was asked 3-4 coding snippets and questions related to static, pass by reference/value, pointers, heap and stack memory allocations.  function calls, data types.  Implement a function body for a multiplier without any multiplication operation (also to improve my solution in terms of performance)

Anonymous · Accepted Answer

Interviewer was quite helpful.  It was an interactive interview.  I would have to constantly talk/write on the shared screen session on my thoughts on the coding snippet and my approach.  The interviewer was not only looking for solutions but also was testing my thought process.  Also guided me if I was heading in the wrong direction.

Anonymous · Answer

Multiplication without * int multiplier(int a, int b) { int res; while(b>0) { if(b&1) { res=res+a; } b>>=1; a<<=1; } return res; }

Anonymous · Answer

int product(int x,int y)
{
if(x

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