Your express package courier company is drawing up new zones for the location of drop boxes for customers.The city has been divided into seven zones.You have targeted six possible locations for drop boxes.The list of the seven zones and which drop boxes could be reached easily from each zone is listed below. 
Let xi = 1 if drop box location i is used,0 otherwise.Develop a model to provide the smallest number of locations,but make sure that each zone is covered by at least two boxes.
Definitions:
Leadership Competencies
A set of skills and behaviors that contribute to effective leadership, including strategic thinking, emotional intelligence, and decision-making capabilities.
Behavioral Perspective
An approach to understanding human behavior that focuses on the observable behaviors and the effects of the environment on those behaviors.
Leadership Styles
Various approaches to leadership, ranging from authoritative to democratic, each with its distinct methods of decision-making and directing.
Transformational Leaders
individuals who inspire and motivate followers to achieve exceptional outcomes by transforming their beliefs and values.
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