We use cookies to ensure you have the best browsing experience on our website. Please read our cookie policy for more information about how we use cookies.
  1. Prepare
  2. Python
  3. Collections
  4. Collections.OrderedDict()
  5. Discussions

Collections.OrderedDict()

Sort 460 Discussions, By:

  • jonmcclung
     + 44 comments

    Just 7 lines:

    from collections import OrderedDict
d = OrderedDict()
for _ in range(int(input())):
    item, space, quantity = input().rpartition(' ')
    d[item] = d.get(item, 0) + int(quantity)
for item, quantity in d.items():
    print(item, quantity)

  • tunavargi
     + 2 comments
    from collections import OrderedDict

number_ = int(input())
odict = OrderedDict()
for i in range(number_):
    litem = input().split(' ')
    price = int(litem[-1])
    item_name = " ".join(litem[:-1])
    if odict.get(item_name):
        odict[item_name] += price
    else:
        odict[item_name] = price

for i,v in odict.items():
    print(i,v)

  • geekypandey
     + 6 comments

    6 lines :-) The dictionaries in latest python are ordered. Check out this talk by Raymond Hettinger. 

    store_item = dict()
for _ in range(int(input())):
    key,_,value = input().rpartition(" ")
    store_item[key] = store_item.get(key,0) + int(value)
for k,v in store_item.items():
    print(k,v)

  • Debsankar_Jana
     + 2 comments
    from collections import OrderedDict
n, item_list = int(input()), OrderedDict()
for _ in range(n):
    item, price = input().rsplit(' ',1)    
    item_list.setdefault(item, 0)
    item_list[item] += int(price)
[print(i, v) for i, v in item_list.items()]

  • marinskiy
     + 3 comments

    Here is Python 3 solution from my HackerrankPractice repository:

    from collections import OrderedDict
ordered_dictionary = OrderedDict()
for _ in range(int(input())):
    item, price = input().rsplit(' ', 1)
    ordered_dictionary[item] = ordered_dictionary.get(item, 0) + int(price)
[print(item, ordered_dictionary[item]) for item in ordered_dictionary]

    Feel free to ask if you have any questions :)

Load more conversations