def serviceLane(n, cases):
    results=[]
    #here the cases array is an 2d array so we have to handle it properly 
    for j in cases:
         #here the 3 is the highest width so assign it to the m_w 
        m_w=3
        for i in range(j[0],j[1]+1):
            if width[i]<m_w:
                m_w=width[i]
        results.append(m_w)           
    return results
    ``