collections.Counter() in Python - Hacker Rank Solution
Problem
collections.Counter()
A counter is a container that stores elements as dictionary keys, and their counts are stored as dictionary values.
Sample Code
>>> from collections import Counter >>> >>> myList = [1,1,2,3,4,5,3,2,3,4,2,1,2,3] >>> print Counter(myList) Counter({2: 4, 3: 4, 1: 3, 4: 2, 5: 1}) >>> >>> print Counter(myList).items() [(1, 3), (2, 4), (3, 4), (4, 2), (5, 1)] >>> >>> print Counter(myList).keys() [1, 2, 3, 4, 5] >>> >>> print Counter(myList).values() [3, 4, 4, 2, 1]
Task :
Raghu is a shoe shop owner. His shop has X number of shoes. He has a list
containing the size of each shoe he has in his shop. There are N number of
customers who are willing to pay xi amount of money only if they get the shoe
of their desired size. Your task is to compute how much money Raghu earned.
Input Format :
The second line contains the space separated list of all the shoe sizes in the shop.
The third line contains N, the number of customers.
The next N lines contain the space separated values of the shoe size desired
by the customer and xi, the price of the shoe.
Constraints :
- 0 <= X <= 10^3
- 0 <= N <= 10^3
- 20 <= xi <= 100
- 2 <= shoe size <= 20
Output Format :
Print the amount of money earned by Raghu.
Sample Input :
10 2 3 4 5 6 8 7 6 5 18 6 6 55 6 45 6 55 4 40 18 60 10 50
Sample Output :
200
Explanation :
Customer 1: Purchased size 6 shoe for $55.
Customer 2: Purchased size 6 shoe for $45.
Customer 3: Size 6 no longer available, so no purchase.
Customer 4: Purchased size 4 shoe for $40.
Customer 5: Purchased size 18 shoe for
$60.
Customer 6: Size 10 not available, so no purchase.
Solution :
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 | # Enter your code here. Read input from STDIN. Print output to STDOUT # collections.Counter() in Python - Hacker Rank Solution START from collections import Counter X = input() S = Counter(map(int,input().split())) n = input() N = int(n) earnings = 0 for customer in range(N): size, x_i = map(int,input().split()) if size in S and S[size] > 0: S[size] -= 1 earnings += x_i print(earnings) # collections.Counter() in Python - Hacker Rank Solution END |
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CodeWorld19
Hey, I am Parthe Omkar
X = int(input())
s = list(map(int,input().split()))
N = int(input())
sum = 0
for i in range(N):
cmd = input().split()
for item in s:
if item==int(cmd[0]):
sum+=int(cmd[1])
s.remove(item)
print(sum)
I am getting 210 instead of 200. Any ideas why?
X = int(input())
s = list(map(int,input().split()))
N = int(input())
sum = 0
for i in range(N):
cmd = input().split()
for item in s:
if item==int(cmd[0]):
s.remove(items)
sum+=int(cmd[1])
break
print(sum)
mind the spaces