Could you please share the link where I can read more about this solution)

But the solution requires you return an int, so if it overflows, no solution could do it correctly (your solution throws an exception)

You have a missing semicolon

Correct. In cases where operators are the same precedence, we also have to take into account the associativity to determine the order of evaluation.

A bit late, but doesn't it solve from left to right?

@alexschrod awesome answer, thank you for explaining so succinctly

dang and I thought mine is simple enough

I know this is old, but can someone explain where the s comes into play?
I know the left side s is the parameter but the right side s is what is returned, but how does that return if the vale is true if there is only the parameter.

if out of range,it will be incorrect.
input 999999-->output -364189984
the correct will be output 0