CSES - Datatähti 2022 alku - Results
Submission details
Task:Ositus (Partitioning)
Sender:okkokko
Submission time:2021-10-07 22:52:06
Language:CPython3
Status:READY
Result:100
Feedback
groupverdictscore
#1ACCEPTED40
#2ACCEPTED25
#3ACCEPTED35
Test results
testverdicttimegroup
#1ACCEPTED0.02 s1, 2, 3details
#2ACCEPTED0.02 s1, 2, 3details
#3ACCEPTED0.02 s1, 2, 3details
#4ACCEPTED0.02 s1, 2, 3details
#5ACCEPTED0.02 s2, 3details
#6ACCEPTED0.03 s3details
#7ACCEPTED0.83 s3details

Code


I="aybebtuecdaceu"#+"ghsdfgljkaseifsdccfgsfbdvkfsdffdgfbdruffvrvfnvfsfdgefaslnghfo"
#555929291
I=input()
ends=[1]
minimum=0
rising=False
for i in range(1,len(I)):
    if rising:
        t=ends[-1]*2
    else:
        t=sum(ends)%(7+(10**9))
    s=I[i]
    cut=I.rfind(s,minimum,i)
    if minimum<cut+1:
        oldmin=minimum
        minimum=cut+1
        ends = ends[minimum-oldmin:]
        rising=False
    else:
        rising=True
    ends.append(t)
    # print("{} {} {}".format(ends,rising, t*2))
total = sum(ends)
print(total%(7+(10**9)))

Test details

Test 1

Group: 1, 2, 3

Verdict: ACCEPTED

input
a

correct output
1

user output
1

Test 2

Group: 1, 2, 3

Verdict: ACCEPTED

input
abcdefghij

correct output
512

user output
512

Test 3

Group: 1, 2, 3

Verdict: ACCEPTED

input
abcabaacbc

correct output
120

user output
120

Test 4

Group: 1, 2, 3

Verdict: ACCEPTED

input
aaxxxxxxaa

correct output
4

user output
4

Test 5

Group: 2, 3

Verdict: ACCEPTED

input
mfyzvoxmppoxcvktmcjkryyocfweub...

correct output
643221148

user output
643221148

Test 6

Group: 3

Verdict: ACCEPTED

input
weinscqmmpgbrlboocvtbptgbahmwv...

correct output
831644159

user output
831644159

Test 7

Group: 3

Verdict: ACCEPTED

input
sxaoxcyrjoeieyinaqxwukgzdnhhsw...

correct output
816016015

user output
816016015