310 A1

def findMinRooms(*lists):
	L, i = [], 0
    while i <len(lists):
    	L.append(lists[i])
        i+=1
    L.sort()
    i, count, c2, itr = 1, 1, 0, L[0]
    while i < len(L):
       if (itr == L[i]):
          itr = L[i]
          count +=1
       elif (itr[1] <= L[i][0]):
          itr = L[i]
          c2, count = max(c2,count), 1
       else:
          count+=1
       i+=1
    return max(c2,count)

print("l = actual: 1. from function =", findMinRooms([1,3]))
print("l1 = actual: 3. from function =", findMinRooms([3.1, 8.0], [2.3, 5.0], [1.2, 3.4]))
print("l2 = actual: 2. from function =", findMinRooms([4.1, 8.0], [2.3, 5.0], [1.2, 3.4]))
print("l3 = actual: 4. from function =", findMinRooms([3.1, 8.0], [2.3, 5.0], [1.2, 3.4], [1.0, 10.0]))
print("l4 = actual: 3. from function =", findMinRooms([1.1, 1.5], [5, 6], [4, 7], [1.0, 2.0], [3, 8]))
print("l6 = actual: 4. from function =", findMinRooms([1,2],[1,22],[1.5,6], [6,10],[6,10],[6,10], [12.1,17.8]))
print("l7 = actual: 1. from function =", findMinRooms([1,2],[2,3],[3,4],[15,18]))
print("l8 = actual: 3. from function =", findMinRooms([1,3],[1,3],[1,3]))
print(findMinRooms([1,20],[2,19],[3,15],[16,18],[17,20])) #output should be 4