CSES - Datatähti 2016 alku - Results
Submission details
Task:Osajono
Sender:Pohjantahti
Submission time:2015-09-28 19:25:06
Language:Python3
Status:READY
Result:39
Feedback
groupverdictscore
#1ACCEPTED12
#2ACCEPTED27
#30
Test results
testverdicttimegroup
#1ACCEPTED0.09 s1details
#2ACCEPTED0.09 s1details
#3ACCEPTED0.08 s1details
#4ACCEPTED0.08 s1details
#5ACCEPTED0.08 s1details
#6ACCEPTED0.09 s2details
#7ACCEPTED0.09 s2details
#8ACCEPTED0.09 s2details
#9ACCEPTED0.09 s2details
#10ACCEPTED0.10 s2details
#11--3details
#12ACCEPTED0.29 s3details
#13--3details
#14--3details
#15--3details

Code

import math

def binomialCoefficient(n, k):
    if n < k:
        return 0
    return factorial(n) / (factorial(k) * (factorial(n - k)))
    
    
def factorial(n):
    if n == 0:
        return 1
        
    result = 1
    for i in range(1, n + 1):
        result *= i
        
    return result
    
    
input = input()
if len(input) == 0:
    print (0)
    sys.exit()


subsets = 0
for i in range(ord('A'), ord('Z') + 1):
    letterCount = input.count(chr(i))
    subsets += (binomialCoefficient(letterCount, 2) + letterCount)
    
print (math.floor(subsets))

Test details

Test 1

Group: 1

Verdict: ACCEPTED

input
BBBAABBBAAAABBAAAABAABAABBBBBB...

correct output
2554

user output
2554

Test 2

Group: 1

Verdict: ACCEPTED

input
GDFVYWQCZAFGICSXOSWBZMGPDBSSVL...

correct output
299

user output
299

Test 3

Group: 1

Verdict: ACCEPTED

input
AAAAAAAAAAAAAAAAAAAAAAAAAZAAAA...

correct output
4314

user output
4314

Test 4

Group: 1

Verdict: ACCEPTED

input
AAAAAAAAAAAAAAAAAAAAAAAAAAAAAA...

correct output
4231

user output
4231

Test 5

Group: 1

Verdict: ACCEPTED

input
QQQQQQQQQQQQQQQQQQQQQQQQQQQQQQ...

correct output
5050

user output
5050

Test 6

Group: 2

Verdict: ACCEPTED

input
BBABABBBABBAABBABBABAABAAABABA...

correct output
6253029

user output
6253029

Test 7

Group: 2

Verdict: ACCEPTED

input
RBKJMLDVQMKHYKCNDIVVKOMFUXTFMG...

correct output
485173

user output
485173

Test 8

Group: 2

Verdict: ACCEPTED

input
AAAAAAAAAAAAAAAAAAAAAAAAAAAAAA...

correct output
12427725

user output
12427725

Test 9

Group: 2

Verdict: ACCEPTED

input
AAAAAAAAAAAAAAAAAAAAAAAAAAAAAA...

correct output
12467549

user output
12467549

Test 10

Group: 2

Verdict: ACCEPTED

input
QQQQQQQQQQQQQQQQQQQQQQQQQQQQQQ...

correct output
12502500

user output
12502500

Test 11

Group: 3

Verdict:

input
BAAAAABABBABAABAABABABBBABBAAB...

correct output
2500051369

user output
(empty)

Test 12

Group: 3

Verdict: ACCEPTED

input
ABBURXDRVXAYBPXXOQZNYHLWGUEEWR...

correct output
192407124

user output
192407124

Test 13

Group: 3

Verdict:

input
AAAAAAAAAAAAAAAAAAAAAAAAAAAAAA...

correct output
4998050400

user output
(empty)

Test 14

Group: 3

Verdict:

input
AAAAAAAAAAAAAAAAAAAAAAAAAAAAAA...

correct output
4998850144

user output
(empty)

Test 15

Group: 3

Verdict:

input
QQQQQQQQQQQQQQQQQQQQQQQQQQQQQQ...

correct output
5000050000

user output
(empty)