def pointsInRange(analyzer, n, in_date, fi_date):
arbol=analyzer["arbol_dates"]
taxis = lt.newList("ARRAY_LIST",compare)
lista=om.values(arbol, in_date, fi_date)
if lt.isEmpty(lista):
return None
iterator=it.newIterator(lista)
mapTaxis = m.newMap(100,maptype='CHAINING',loadfactor=5,comparefunction=compareMap)
while it.hasNext(iterator):
date=it.next(iterator)
for i in range(1,lt.size(date)+1):
element = lt.getElement(date,i)
num,taxiId = element
entry = m.get(mapTaxis,taxiId)
if entry == None:
lt.addLast(taxis, taxiId)
m.put(mapTaxis,taxiId,num)
else:
num2 = entry["value"]
numNew = num2 + num
entry["value"] = numNew
max_pq=hp.newHeap(compare)
for j in range (1, lt.size(taxis)+1):
taxiId = lt.getElement(taxis,j)
points = me.getValue(m.get(mapTaxis,taxiId))
hp.insertMax(max_pq,points, taxiId)
lst = max_pq['elements']
size = lt.size(lst)
while size>1:
lt.exchange(lst,1,size)
size -=1
sinksort(lst,1,size)
return (lst,lt.size(lst))
def requerimiento1(catalog,country,category):
start_time = time.process_time()
country=country.lower()
countries=catalog["countries"]
couple=mp.get(countries,country)
lista=me.getValue(couple)
size=lt.size(lista)
number=getCategoryNumber(category,catalog)
contador=1
iterador=li.newIterator(lista)
i=1
while li.hasNext(iterador):
video=li.next(iterador)
if cmpVideosByCategory(number,video):
lt.exchange(lista,i,contador)
contador+=1
i+=1
lista_total=lt.subList(lista,1,contador)
size=lt.size(lista_total)
ordenada=mergeSort(lista_total,1)
stop_time = time.process_time()
elapsed_time_mseg = (stop_time - start_time)*1000
return ordenada,elapsed_time_mseg
def exchange(heap, posa, posb):
"""
Intercambia los elementos en las posiciones posa y posb del heap
"""
try:
lt.exchange(heap['elements'], posa, posb)
except Exception as exp:
error.reraise(exp, 'heap:exchange')
def insertionSort(lst, lessfunction):
size = lt.size(lst)
pos1 = 1
while pos1 <= size:
pos2 = pos1
while (pos2 > 1) and (lessfunction(
(lt.getElement(lst, pos2), lt.getElement(lst, pos2 - 1)))):
lt.exchange(lst, pos2, pos2 - 1)
pos2 -= 1
pos1 += 1
def sort(lst, cmpfunction):
size = lt.size(lst)
pos1 = 1
while pos1 <= size:
pos2 = pos1
while (pos2 > 1) and (cmpfunction(lt.getElement(lst, pos2),
lt.getElement(lst, pos2 - 1))):
lt.exchange(lst, pos2, pos2 - 1)
pos2 -= 1
pos1 += 1
return lst
def selectionSort(lst, lessfunction):
size = lt.size(lst)
pos1 = 1
while pos1 < size:
minimum = pos1 # minimun tiene el menor elemento
pos2 = pos1 + 1
while (pos2 <= size):
if (lessfunction(lt.getElement(lst, pos2),
(lt.getElement(lst, minimum)))):
minimum = pos2 # minimum = posición elemento más pequeño
pos2 += 1
lt.exchange(lst, pos1, minimum) # elemento más pequeño -> elem pos1
pos1 += 1
def shellSort(lst, lessfunction):
n = lt.size(lst)
h = 1
while h < n / 3: # Se calcula el tamaño del primer gap. La lista se h-ordena con este tamaño
h = 3 * h + 1 # por ejemplo para n = 100, h toma un valor inical de 13 , 4, 1
while (h >= 1):
for i in range(h, n):
j = i
while (j >= h) and lessfunction(lt.getElement(lst, j + 1),
lt.getElement(lst, j - h + 1)):
lt.exchange(lst, j + 1, j - h + 1)
j -= h
h //= 3 # h se decrementa en un tercio. cuando h es igual a 1, se comporta como insertionsort
def shellSort(lst, lessfunction):
n = lt.size(lst)
h = 1
while h < n / 3: # primer gap. La lista se h-ordena con este tamaño
h = 3 * h + 1
while (h >= 1):
for i in range(h, n):
j = i
ant = lt.getElement(lst, j + 1)
post = lt.getElement(lst, j - h + 1)
while (j >= h) and lessfunction(ant, post):
lt.exchange(lst, j + 1, j - h + 1)
j -= h
h //= 3 # h se decrementa en un tercio
def partition(lst, lo, hi, cmpfunction):
"""
Función que va dejando el pivot en su lugar, mientras mueve
elementos menores a la izquierda del pivot y elementos mayores a
la derecha del pivot
"""
follower = leader = lo
while leader < hi:
if cmpfunction(lt.getElement(lst, leader), lt.getElement(lst, hi)):
lt.exchange(lst, follower, leader)
follower += 1
leader += 1
lt.exchange(lst, follower, hi)
return follower
def sort(lst, cmpfunction):
n = lt.size(lst)
h = 1
while h < n / 3: # primer gap. La lista se h-ordena con este tamaño
h = 3 * h + 1
while (h >= 1):
for i in range(h, n):
j = i
while (j >= h) and cmpfunction(lt.getElement(lst, j + 1),
lt.getElement(lst, j - h + 1)):
lt.exchange(lst, j + 1, j - h + 1)
j -= h
h //= 3 # h se decrementa en un tercio
return lst
def shellSort(lst, lessfunction):
n = lt.size(lst)
h = 1
while (
h < n / 3
): # Se calcula el tamaño del primer gap. La lista se h-ordena con este tamaño
h = 3 * h + 1 # por ejemplo para n = 100, h toma un valor inical de 13 , 4, 1
while h >= 1:
for i in range(h, n):
j = i
while (j >= h) and lessfunction(lt.getElement(lst, j + 1),
lt.getElement(lst, j - h + 1)):
lt.exchange(lst, j + 1, j - h + 1)
j -= h
h //= 3
def sinksort (lst, pos, size):
if (2*pos>size):
return lst
dad = lt.getElement(lst,pos)
left = lt.getElement(lst,2*pos)
right = lt.getElement(lst,(2*pos)+1)
if ((2*pos)+1 > size):
num,id = left
right = ((num-1),id)
if ((dad > left) and (dad > right)):
return lst
else:
if left >= right:
lt.exchange(lst,2*pos,pos)
sinksort(lst,2*pos,size)
else:
lt.exchange(lst,(2*pos)+1,pos)
sinksort(lst,(2*pos)+1,size)
return lst
def orderPoints(analyzer):
lista=analyzer["list_dates"]
mapa= analyzer["date"]
arbol= analyzer["arbol_dates"]
for i in range(1, lt.size(lista)+1):
date=lt.getElement(lista, i)
taxis=me.getValue(m.get(mapa, date))
taxisLst = taxis["taxis"]
taxisMap = taxis["map"]
max_pq=hp.newHeap(compare)
for j in range (1, lt.size(taxisLst)+1):
taxiId = lt.getElement(taxisLst,j)
taxiDict = me.getValue(m.get(taxisMap,taxiId))
point=(taxiDict["millas"]/taxiDict["money"])*taxiDict["services"]
hp.insertMax(max_pq,point, taxiId)
lst = max_pq['elements']
size = lt.size(lst)
while size>1:
lt.exchange(lst,1,size)
size -=1
sinksort(lst,1,size)
om.put(arbol,date, lst)
def PrimMST(graph, origin=None):
"""
Implementa el algoritmo de Prim
Args:
graph: El grafo de busqueda
Returns:
La estructura search con los MST
Raises:
Exception
"""
try:
search = initSearch(graph)
vertices = g.vertices(graph)
if origin is not None:
pos = lt.isPresent(vertices, origin)
if pos != 0:
lt.exchange(vertices, 1, pos)
for vert in lt.iterator(vertices):
if not map.get(search['marked'], vert)['value']:
prim(graph, search, vert)
return search
except Exception as exp:
error.reraise(exp, 'prim:PrimMST')
def test_exchange_array(altbooks, books):
book1 = lt.getElement(altbooks, 1)
book5 = lt.getElement(altbooks, 5)
lt.exchange(altbooks, 1, 5)
assert lt.getElement(altbooks, 1) == book5
assert lt.getElement(altbooks, 5) == book1