CSES - Aalto Competitive Programming 2024 - wk9 - Mon - Results
Submission details
Task:Matter++
Sender:esya_rae
Submission time:2024-11-04 17:04:46 +0200
Language:Python3 (PyPy3)
Status:READY
Result:
Test results
testverdicttime
#1ACCEPTED0.04 sdetails
#2ACCEPTED0.04 sdetails
#3ACCEPTED0.04 sdetails
#4ACCEPTED0.04 sdetails
#5ACCEPTED0.04 sdetails
#6ACCEPTED0.04 sdetails
#7ACCEPTED0.04 sdetails
#8ACCEPTED0.04 sdetails
#9ACCEPTED0.04 sdetails
#10ACCEPTED0.04 sdetails
#11ACCEPTED0.05 sdetails
#12ACCEPTED0.04 sdetails
#13ACCEPTED0.04 sdetails
#14ACCEPTED0.04 sdetails
#15ACCEPTED0.04 sdetails
#160.04 sdetails
#17ACCEPTED0.04 sdetails
#18ACCEPTED0.04 sdetails
#19ACCEPTED0.04 sdetails
#20ACCEPTED0.04 sdetails
#21ACCEPTED0.04 sdetails
#22ACCEPTED0.04 sdetails
#23ACCEPTED0.04 sdetails
#24ACCEPTED0.04 sdetails
#25ACCEPTED0.04 sdetails
#260.04 sdetails
#27ACCEPTED0.04 sdetails
#28ACCEPTED0.04 sdetails
#29ACCEPTED0.04 sdetails
#30ACCEPTED0.04 sdetails
#31ACCEPTED0.04 sdetails
#320.04 sdetails
#330.04 sdetails
#34ACCEPTED0.04 sdetails
#350.04 sdetails
#360.04 sdetails
#37ACCEPTED0.04 sdetails
#380.04 sdetails
#390.04 sdetails
#400.04 sdetails
#410.04 sdetails
#420.04 sdetails
#430.04 sdetails
#44ACCEPTED0.04 sdetails
#450.04 sdetails
#460.04 sdetails
#470.04 sdetails
#480.04 sdetails
#490.04 sdetails
#50ACCEPTED0.04 sdetails
#510.04 sdetails
#520.04 sdetails
#530.04 sdetails
#54ACCEPTED0.04 sdetails
#550.04 sdetails
#560.04 sdetails
#570.04 sdetails
#580.04 sdetails
#59ACCEPTED0.04 sdetails
#60ACCEPTED0.04 sdetails
#610.04 sdetails
#620.05 sdetails
#630.05 sdetails
#640.05 sdetails
#650.05 sdetails
#660.05 sdetails
#670.05 sdetails
#680.05 sdetails
#690.05 sdetails
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#710.05 sdetails

Code

import sys
input = sys.stdin.readline
w = int(input())
s = input().strip()
n = len(s)
cur_w = 0


frequency = [0] * 26
for i in range(n):
    frequency[ord(s[i]) - ord('a')] += 1

for i in range(26):
    cur_w += frequency[i] * frequency[i]

i = 0
j = n - 1
left = True
# print(s[i:j + 1])
while cur_w >= w:
    si = ord(s[i]) - ord('a')
    sj = ord(s[j]) - ord('a')
    if frequency[si] >= frequency[sj]:
        cur_w -= 2 * frequency[sj] - 1
        frequency[sj] -= 1
        j -= 1
        left = False
    else:
        cur_w -= 2 * frequency[si] - 1
        frequency[si] -= 1
        i += 1
        left = True
    # print(s[i:j + 1], cur_w)

if left:
    i -= 1
else:
    j += 1

print(s[i:j + 1])

Test details

Test 1

Verdict: ACCEPTED

input
1
e

correct output
e

user output
e

Test 2

Verdict: ACCEPTED

input
1
be

correct output
b

user output
b

Test 3

Verdict: ACCEPTED

input
1
za

correct output
z

user output
z

Test 4

Verdict: ACCEPTED

input
1
po

correct output
p

user output
p

Test 5

Verdict: ACCEPTED

input
1
acc

correct output
a

user output
c

Test 6

Verdict: ACCEPTED

input
2
caa

correct output
ca

user output
aa

Test 7

Verdict: ACCEPTED

input
2
caa

correct output
ca

user output
aa

Test 8

Verdict: ACCEPTED

input
2
cced

correct output
cc

user output
cc

Test 9

Verdict: ACCEPTED

input
2
ceea

correct output
ce

user output
ee

Test 10

Verdict: ACCEPTED

input
1
ccad

correct output
c

user output
c

Test 11

Verdict: ACCEPTED

input
4
ccda

correct output
cc

user output
cc

Test 12

Verdict: ACCEPTED

input
1
defdf

correct output
d

user output
d

Test 13

Verdict: ACCEPTED

input
1
fefaa

correct output
f

user output
f

Test 14

Verdict: ACCEPTED

input
7
bafdf

correct output
bafdf

user output
bafdf

Test 15

Verdict: ACCEPTED

input
1
aefba

correct output
a

user output
a

Test 16

Verdict:

input
3
cbacc

correct output
cc

user output
cba

Test 17

Verdict: ACCEPTED

input
1
bwvfj

correct output
b

user output
b

Test 18

Verdict: ACCEPTED

input
11
caaca

correct output
caaca

user output
caaca

Test 19

Verdict: ACCEPTED

input
4
fuilz

correct output
fuil

user output
fuil

Test 20

Verdict: ACCEPTED

input
5
acacb

correct output
aca

user output
aca

Test 21

Verdict: ACCEPTED

input
4
jnmma

correct output
mm

user output
mm

Test 22

Verdict: ACCEPTED

input
6
defdfdfcdd

correct output
defd

user output
defd

Test 23

Verdict: ACCEPTED

input
5
fefaabfaba

correct output
fef

user output
aab

Test 24

Verdict: ACCEPTED

input
22
bafdfcccbb

correct output
bafdfcccbb

user output
bafdfcccbb

Test 25

Verdict: ACCEPTED

input
12
aefbaddfcf

correct output
aefbaddf

user output
fbaddfcf

Test 26

Verdict:

input
14
cbacccbcba

correct output
cccbc

user output
cbaccc

Test 27

Verdict: ACCEPTED

input
1
bwvfjxzmcp

correct output
b

user output
b

Test 28

Verdict: ACCEPTED

input
17
caacaabacb

correct output
aacaa

user output
aacaa

Test 29

Verdict: ACCEPTED

input
13
fuilzslzio

correct output
ilzslzi

user output
ilzslzi

Test 30

Verdict: ACCEPTED

input
16
acacbbcaba

correct output
acacbbc

user output
acacbbc

Test 31

Verdict: ACCEPTED

input
5
jnmmadidaf

correct output
nmm

user output
mma

Test 32

Verdict:

input
278
defdfdfcddccbfafbcceedcdcffaca...

correct output
fdfcddccbfafbcceedcdcffacadace...

user output
cddccbfafbcceedcdcffacadacefea...

Test 33

Verdict:

input
32
fefaabfabacbccecfdfcbedbcfbade...

correct output
cbccecfdfc

user output
dbcfbadefccdc

Test 34

Verdict: ACCEPTED

input
1387
bafdfcccbbabedabcbddedeacddbee...

correct output
dfcccbbabedabcbddedeacddbeebfd...

user output
dfcccbbabedabcbddedeacddbeebfd...

Test 35

Verdict:

input
190
aefbaddfcfaaabbaaceaaccdbbcecd...

correct output
aaabbaaceaaccdbbcecdfaedfbccdb...

user output
aaceaaccdbbcecdfaedfbccdbbedcb...

Test 36

Verdict:

input
1205
cbacccbcbaacaacacbbcaabcbcbabb...

correct output
abbaabccbacacccbabaabaacccbcbc...

user output
cccbcbaacaacacbbcaabcbcbabbcab...

Test 37

Verdict: ACCEPTED

input
299
bwvfjxzmcpktjnmhzevcqtvlgetwch...

correct output
vfjxzmcpktjnmhzevcqtvlgetwchfk...

user output
vfjxzmcpktjnmhzevcqtvlgetwchfk...

Test 38

Verdict:

input
2796
caacaabacbabbbbbbbcbccbbababcc...

correct output
bacbabbbbbbbcbccbbababccccbbcc...

user output
caacaabacbabbbbbbbcbccbbababcc...

Test 39

Verdict:

input
345
fuilzslziogncbkgamnrwuijkbrhrx...

correct output
lziogncbkgamnrwuijkbrhrxsfilyy...

user output
lzslziogncbkgamnrwuijkbrhrxsfi...

Test 40

Verdict:

input
1517
acacbbcababbcbbbcbcbabccbccbab...

correct output
baaaaaccaaaaababbccbbccaaababb...

user output
bbcababbcbbbcbcbabccbccbabbabc...

Test 41

Verdict:

input
123
jnmmadidafwkdgdckimeiwjytbzsso...

correct output
mmadidafwkdgdckimeiwjytbzssodx...

user output
didafwkdgdckimeiwjytbzssodxdry...

Test 42

Verdict:

input
1079
defdfdfcddccbfafbcceedcdcffaca...

correct output
fdfdfcddccbfafbcceedcdcffacada...

user output
defdfdfcddccbfafbcceedcdcffaca...

Test 43

Verdict:

input
56
fefaabfabacbccecfdfcbedbcfbade...

correct output
fbeeefebaedfff

user output
edbcfbadefccdcafbe

Test 44

Verdict: ACCEPTED

input
5337
bafdfcccbbabedabcbddedeacddbee...

correct output
bafdfcccbbabedabcbddedeacddbee...

user output
cccbbabedabcbddedeacddbeebfdcc...
Truncated

Test 45

Verdict:

input
744
aefbaddfcfaaabbaaceaaccdbbcecd...

correct output
cccacdedecabbcdcebdbbcdfddfbeb...

user output
ceaaccdbbcecdfaedfbccdbbedcbac...

Test 46

Verdict:

input
10488
cbacccbcbaacaacacbbcaabcbcbabb...

correct output
bcbcbabbcabbaabccbacacccbabaab...

user output
bacccbcbaacaacacbbcaabcbcbabbc...
Truncated

Test 47

Verdict:

input
11
bwvfjxzmcpktjnmhzevcqtvlgetwch...

correct output
pxyyy

user output
tjnmhzevcqt

Test 48

Verdict:

input
5929
caacaabacbabbbbbbbcbccbbababcc...

correct output
bbbbbbbcbccbbababccccbbccccbac...

user output
cbabbbbbbbcbccbbababccccbbcccc...
Truncated

Test 49

Verdict:

input
1398
fuilzslziogncbkgamnrwuijkbrhrx...

correct output
gncbkgamnrwuijkbrhrxsfilyygatp...

user output
lzslziogncbkgamnrwuijkbrhrxsfi...
Truncated

Test 50

Verdict: ACCEPTED

input
5219
acacbbcababbcbbbcbcbabccbccbab...

correct output
acbbcababbcbbbcbcbabccbccbabba...

user output
bbcababbcbbbcbcbabccbccbabbabc...
Truncated

Test 51

Verdict:

input
450
jnmmadidafwkdgdckimeiwjytbzsso...

correct output
qmtyjuvzcecnbymqfwyzzergpwuxbt...

user output
mmadidafwkdgdckimeiwjytbzssodx...
Truncated

Test 52

Verdict:

input
26679
defdfdfcddccbfafbcceedcdcffaca...

correct output
bcbfacacffbedecaafcecffaffaadd...

user output
dcdcffacadacefeafffceecdeeaedd...
Truncated

Test 53

Verdict:

input
22417
fefaabfabacbccecfdfcbedbcfbade...

correct output
adefccdcafbeeefebaedfffeaeabba...

user output
aabfabacbccecfdfcbedbcfbadefcc...
Truncated

Test 54

Verdict: ACCEPTED

input
128464
bafdfcccbbabedabcbddedeacddbee...

correct output
bafdfcccbbabedabcbddedeacddbee...

user output
bbabedabcbddedeacddbeebfdccfba...
Truncated

Test 55

Verdict:

input
10769
aefbaddfcfaaabbaaceaaccdbbcecd...

correct output
ebefdceecdabceccdeaebdeebdcdfa...

user output
bbbfcefafaebfefcccacdedecabbcd...
Truncated

Test 56

Verdict:

input
70653
cbacccbcbaacaacacbbcaabcbcbabb...

correct output
acaaaaaabaaabbccbabbbbcacbccbc...

user output
abbcabbaabccbacacccbabaabaaccc...
Truncated

Test 57

Verdict:

input
233
bwvfjxzmcpktjnmhzevcqtvlgetwch...

correct output
qfvyojqjvhyfxtvycrjlaoofuebvev...

user output
vcqtvlgetwchfkdhwqnpmptgahcgvi...

Test 58

Verdict:

input
116525
caacaabacbabbbbbbbcbccbbababcc...

correct output
caaabbacabbbabcccbacaaacaaccac...

user output
babbbbbbbcbccbbababccccbbccccb...
Truncated

Test 59

Verdict: ACCEPTED

input
27985
fuilzslziogncbkgamnrwuijkbrhrx...

correct output
uilzslziogncbkgamnrwuijkbrhrxs...

user output
kgamnrwuijkbrhrxsfilyygatpgywf...
Truncated

Test 60

Verdict: ACCEPTED

input
161959
acacbbcababbcbbbcbcbabccbccbab...

correct output
acacbbcababbcbbbcbcbabccbccbab...

user output
bbcababbcbbbcbcbabccbccbabbabc...
Truncated

Test 61

Verdict:

input
8903
jnmmadidafwkdgdckimeiwjytbzsso...

correct output
uaguxmabjxfuialfmskifofagvsnkn...

user output
aguxmabjxfuialfmskifofagvsnknp...
Truncated

Test 62

Verdict:

input
264240357
defdfdfcddccbfafbcceedcdcffaca...

correct output
badeaccfbabfcceaabffecbffcdcfe...

user output
afbcceedcdcffacadacefeafffceec...
Truncated

Test 63

Verdict:

input
30437082
fefaabfabacbccecfdfcbedbcfbade...

correct output
acdbbfafacdebdefccfbcfcdeecdfd...

user output
dbcfbadefccdcafbeeefebaedfffea...
Truncated

Test 64

Verdict:

input
1280505429
bafdfcccbbabedabcbddedeacddbee...

correct output
eaceacebbcdfacddcecfceccddfcac...

user output
abcbddedeacddbeebfdccfbafdbabc...
Truncated

Test 65

Verdict:

input
107609709
aefbaddfcfaaabbaaceaaccdbbcecd...

correct output
bffcffbddbfedcccfcdcdfecbbefbe...

user output
bebccabebadfaeccccedeceeebcfec...
Truncated

Test 66

Verdict:

input
706196896
cbacccbcbaacaacacbbcaabcbcbabb...

correct output
bccbccccacabcacaaabcccbacbcaba...

user output
abaacbaabbcbbcaabaaccbcbaccbcc...
Truncated

Test 67

Verdict:

input
9966992
bwvfjxzmcpktjnmhzevcqtvlgetwch...

correct output
hljwtcgatnetpvfxeiipnhaarsejbf...

user output
tnnqsjyyydgtxmmyfyknptxrxgobuy...
Truncated

Test 68

Verdict:

input
1449002782
caacaabacbabbbbbbbcbccbbababcc...

correct output
acbaabcaababcabcccabcbbaacccca...

user output
aacaabacbabbbbbbbcbccbbababccc...
Truncated

Test 69

Verdict:

input
275504573
fuilzslziogncbkgamnrwuijkbrhrx...

correct output
lziogncbkgamnrwuijkbrhrxsfilyy...

user output
uilzslziogncbkgamnrwuijkbrhrxs...
Truncated

Test 70

Verdict:

input
1480920774
acacbbcababbcbbbcbcbabccbccbab...

correct output
bcccaccabcaabccaaabcbbacbbbbba...

user output
acacbbcababbcbbbcbcbabccbccbab...
Truncated

Test 71

Verdict:

input
199518168
jnmmadidafwkdgdckimeiwjytbzsso...

correct output
mzdiyihtesgshxbshryvzqghavzgrs...

user output
eexiprtceaeiokiouosiflsgkfbuvd...
Truncated