Implement *, - and / operations using only + arithmetic operator

Given two numbers, perform multiplication, subtraction, and division operations on them, using '+' arithmetic operator only.
 

Operations can be performed as follows: 

Subtraction :-  a - b = a + (-1)*b.
Multiplication :- a * b = a + a + a ... b times.
Division :- a / b = continuously subtract b from a and 
 count how many times we can do that.

The above steps look simple, but it is slightly challenging as we can't even use - to subtract. 

Output:  

Subtraction is 6
Product is -54
Division is 4

Time Complexity: O(max(|a|, |b|)), Where flipSign() function is O(|a|), sub() function is O(|b|), mul() function is O(max(|a|, |b|)) and division() function is O(|a/b|), Thus Overall, the time complexity of the code is O(max(|a|, |b|)).

Space Complexity: O(1), as it does not use any additional data structures.

Related Articles : 
 

• Add two numbers without using arithmetic operators
• Subtract two numbers without using arithmetic operators
• Multiply two integers without using multiplication, division and bitwise operators, and no loops

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