Greedy Algorithoms--box

weight=[20,10,26,15]
_list = zip(weight, range(0, len(weight)))
capacity =70

_list.sort(key=lambda item:item[0])
print _list
_list_load = []
def load(item):
 global capacity
 capacity = capacity -item[0]
 if capacity >0:
  _list_load.append(True)
 else:
  _list_load.append(False)

map(lambda item:load(item), _list)
print  _list_load

_list_3 = zip(_list,  _list_load)
print _list_3

_list_4 = filter(lambda item:item[1], _list_3)
print _list_4