Some HackerRank Python Solutions

HackerRank ı gerçekten python öğrenim konusunda çok başarılı buldum, yeni öğrenen arkadaşlar kendilerini burada çok iyi geliştirebilirler. satırları int dizilerin dizisi yapmak

s=[]
import sys
for line in sys.stdin:
    s.append(map(int,line.split()))

output [[5, 3], [10, 2, 5], [7, 1, 0], [9, 9, 9], [1, 23, 12], [6, 5, 9], 

---

>>> 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]

----

[1]]

-----
# Enter your code here. Read input from STDIN. Print output to STDOUT

s=[]
import sys
for line in sys.stdin:
    s.append(map(int,line.split()))
    
N,M=s[0][0],s[0][1]
K=s[N+1][0]


d={}
for i in range(1,N+1):
    d[s[i][K]]=s[i]

import collections

od = collections.OrderedDict(sorted(d.items()))
for k, v in od.iteritems(): 
    print " ".join(map(str,v))
                                    


-----
s=[]
import sys
for line in sys.stdin:
    s.append(line)
    
N=map(int,s[0].split())[0]
M=map(int,s[0].split())[1]



------
arr = map(int, raw_input().split())
filter((lambda x: x < 0), range(10))

----
import sys
for line in sys.stdin:
    s=line
   
print s[:500]


---------

import operator
import sys

s=[]
import sys
for line in sys.stdin:
    s.append(line)
    
s1=map(int,s)

print reduce(operator.add,s1)
print reduce(operator.sub,s1)
print reduce(operator.mul,s1)

----
import operator
import sys

s=[]
import sys
for line in sys.stdin:
    s.append(line)
    
s1=map(int,s)
print s1[0]//s1[1]
print s1[0]*1.0/s1[1]*1.0

----

# Enter your code here. Read input from STDIN. Print output to STDOUT
N=None
import math
import sys
for line in sys.stdin:
    N=int(line)

res=map(lambda x:x*x,range(N))

for i in res:
    print i
 
-------

def is_leap(year):
    leap = False
    
    # Write your logic here
    if year%4==0:
        leap=True
    if year%100==0:
        leap=False
    if year%400==0:
        leap=True

        
    return leap
 
-----
 
import sys
print "".join(map(str,range(1,int([line for line in sys.stdin][0])+1)))

----
# Enter your code here. Read input from STDIN. Print output to STDOUT


import operator
import sys
h=0
s=[]
import sys
for line in sys.stdin:
    s.append(line)
    
arr=map(int,s[1].split())
A=set(map(int,s[2].split()))
B=set(map(int,s[3].split()))


for i in arr:
    if i in A:
        h=h+1
    elif i in B:
        h=h-1

print h

----

# Enter your code here. Read input from STDIN. Print output to STDOUT
s=[]
import sys
for line in sys.stdin:
    s.append(map(int,line.split()))

n_shoes=s[0][0]
sizes=s[1]
number_of_customers=s[2][0]

top=0
for i in range(3,number_of_customers+3):
  try:
    if s[i][0] in sizes:
        top+=s[i][1]
        sizes.remove(s[i][0])
  except:
    pass

print top


-----

def fib(n):
    return n if n < 2 else fib(n-1) + fib(n-2)

s=[]
import sys
for line in sys.stdin:
    s.append(map(int,line.split()))

fibo=[]
for i in range(s[0][0]):
    fibo.append(fib(i))
    
print map(lambda x:x**3,fibo)

------


# Enter your code here. Read input from STDIN. Print output to STDOUT

s=[]
import sys
for line in sys.stdin:
    s.append(line.split())
    
res=[]    
for i in range(1,int(s[0][0])+1):
    op=s[i][0]
    if op in ("print","sort","pop","reverse"):
        pass
    elif op in ("append","remove"):
        val=int(s[i][1])
    elif op =="insert":
        indx=int(s[i][1])
        val=int(s[i][2])
    else:
        print op
    
    if op=="insert":
        res.insert(indx,val)
    elif op=="append":
        res.append(val)
    elif op=="print":
        print res
    elif op=="sort":
        res.sort()
    elif op=="reverse":
        res.reverse()
    elif op=="remove":
        res.remove(val)
    elif op=="pop":
        res.pop()

  
----
  # Enter your code here. Read input from STDIN. Print output to STDOUT
s=[]
import sys
for line in sys.stdin:
    s.append(map(int,line.split()))
    
tnp=s[0][0]
alt=set(s[1])



print sum(alt)*1.0/len(alt)*1.0


--------


# Enter your code here. Read input from STDIN. Print output to STDOUT
s=[]
import sys
for line in sys.stdin:
    s.append(map(int,line.split()))

if len(filter(lambda x:x<0 s="">0:
    print False
elif len(filter(lambda x:x<10 or="" s="" x="">0:
    print True
else:
    print False
     
-----------


# Enter your code here. Read input from STDIN. Print output to STDOUT
import string

s=[]
import sys
for line in sys.stdin:
    s.append(line.rstrip('\n'))
    
ALLOWED = frozenset(string.ascii_letters + string.digits + '_' + '-')
ALLOWED2 = frozenset(string.ascii_letters + string.digits)



def parse(s):
    global u,w,e
    if s.count("@") !=1 or s.count(".")!=1:
        return False
    
    try:
        username=s.split('@')[0]
        websitename=(s.split('@')[1]).split('.')[0]
        extension=s.split('.')[1]
        u,w,e=username,websitename,extension
        
        if not all(map(len,[u,w,e]))>0:
                return False
        return True
    except:
        return False

def check(mystring,x):
    return all(c in x for c in mystring)

def son3(s):
    if len(s)<=3 and len(s)>0:
        return True
    else:
        return False

print sorted(filter(lambda x:parse(x) and check(u,ALLOWED) and check(w,ALLOWED2) and son3(e),s))