The answer would be a C class fire extinguisher.
Answer:- Major property of a good hash code is that objects which are equal should return the same hash code .
Explanation: Hash codes is a numeric value which is used for identify a object while a equality testing .Hash code can occupy the value of any length and then returns a fixed length value. The value of hash codes are variable.
If two objects are equal then by the method of equal(object) if the hashcode() function is called on both the objects , they produce the same value.
An optimization problem is one in which you want to find, not just a solution, but the best solution •<span>A <span>“greedy algorithm” sometimes works </span></span><span>well for optimization problems </span>•<span>But only a few optimization problems can </span><span> be solved by the <span>greedy method</span></span>