CSES - Aalto Competitive Programming 2025 - wk9 - Mon

Submission details
Task:	Matter++
Sender:	luukwin
Submission time:	2025-11-03 17:37:53 +0200
Language:	Python3 (PyPy3)
Status:	READY
Result:	ACCEPTED

Test results
test	verdict	time
#1	ACCEPTED	0.04 s	details
#2	ACCEPTED	0.04 s	details
#3	ACCEPTED	0.04 s	details
#4	ACCEPTED	0.04 s	details
#5	ACCEPTED	0.04 s	details
#6	ACCEPTED	0.04 s	details
#7	ACCEPTED	0.04 s	details
#8	ACCEPTED	0.04 s	details
#9	ACCEPTED	0.04 s	details
#10	ACCEPTED	0.04 s	details
#11	ACCEPTED	0.04 s	details
#12	ACCEPTED	0.04 s	details
#13	ACCEPTED	0.04 s	details
#14	ACCEPTED	0.04 s	details
#15	ACCEPTED	0.04 s	details
#16	ACCEPTED	0.04 s	details
#17	ACCEPTED	0.04 s	details
#18	ACCEPTED	0.04 s	details
#19	ACCEPTED	0.04 s	details
#20	ACCEPTED	0.04 s	details
#21	ACCEPTED	0.04 s	details
#22	ACCEPTED	0.04 s	details
#23	ACCEPTED	0.04 s	details
#24	ACCEPTED	0.04 s	details
#25	ACCEPTED	0.04 s	details
#26	ACCEPTED	0.04 s	details
#27	ACCEPTED	0.04 s	details
#28	ACCEPTED	0.04 s	details
#29	ACCEPTED	0.04 s	details
#30	ACCEPTED	0.04 s	details
#31	ACCEPTED	0.04 s	details
#32	ACCEPTED	0.04 s	details
#33	ACCEPTED	0.04 s	details
#34	ACCEPTED	0.04 s	details
#35	ACCEPTED	0.04 s	details
#36	ACCEPTED	0.04 s	details
#37	ACCEPTED	0.04 s	details
#38	ACCEPTED	0.04 s	details
#39	ACCEPTED	0.04 s	details
#40	ACCEPTED	0.04 s	details
#41	ACCEPTED	0.04 s	details
#42	ACCEPTED	0.04 s	details
#43	ACCEPTED	0.04 s	details
#44	ACCEPTED	0.05 s	details
#45	ACCEPTED	0.04 s	details
#46	ACCEPTED	0.04 s	details
#47	ACCEPTED	0.04 s	details
#48	ACCEPTED	0.04 s	details
#49	ACCEPTED	0.04 s	details
#50	ACCEPTED	0.04 s	details
#51	ACCEPTED	0.04 s	details
#52	ACCEPTED	0.05 s	details
#53	ACCEPTED	0.05 s	details
#54	ACCEPTED	0.05 s	details
#55	ACCEPTED	0.06 s	details
#56	ACCEPTED	0.06 s	details
#57	ACCEPTED	0.05 s	details
#58	ACCEPTED	0.05 s	details
#59	ACCEPTED	0.05 s	details
#60	ACCEPTED	0.05 s	details
#61	ACCEPTED	0.05 s	details
#62	ACCEPTED	0.40 s	details
#63	ACCEPTED	0.18 s	details
#64	ACCEPTED	0.47 s	details
#65	ACCEPTED	0.30 s	details
#66	ACCEPTED	0.40 s	details
#67	ACCEPTED	0.21 s	details
#68	ACCEPTED	0.49 s	details
#69	ACCEPTED	0.48 s	details
#70	ACCEPTED	0.51 s	details
#71	ACCEPTED	0.52 s	details

Code

w = int(input())
string = input()

l, r = 0, 1
min = 99999999
en = 1
minstring = string
letters = {string[0] : 1}

while r <= len(string):
    if en < w:
        if r == len(string): r+= 1
        else:
            if string[r] in letters:
                amount = letters[string[r]]
                en -= amount**2
                letters[string[r]] += 1
                en += (amount+ 1)**2
            else:
                letters[string[r]] = 1
                en += 1
            r += 1
    else:
        amount = letters[string[l]]
        en -= amount**2
        letters[string[l]] -= 1
        en += (amount-1)**2
        l += 1

    substring = string[l:r]
    # print(substring, en)
    if len(substring) < len(minstring) and en >= w: 
        min = en
        minstring = substring

print(minstring)

Test details

Test 1

Verdict: ACCEPTED

input
`1 e` view save

correct output
`e` view save

user output
`e` view save

Test 2

Verdict: ACCEPTED

input
`1 be` view save

correct output
`b` view save

user output
`e` view save

Test 3

Verdict: ACCEPTED

input
`1 za` view save

correct output
`z` view save

user output
`a` view save

Test 4

Verdict: ACCEPTED

input
`1 po` view save

correct output
`p` view save

user output
`o` view save

Test 5

Verdict: ACCEPTED

input
`1 acc` view save

correct output
`a` view save

user output
`c` view save

Test 6

Verdict: ACCEPTED

input
`2 caa` view save

correct output
`ca` view save

user output
`ca` view save

Test 7

Verdict: ACCEPTED

input
`2 caa` view save

correct output
`ca` view save

user output
`ca` view save

Test 8

Verdict: ACCEPTED

input
`2 cced` view save

correct output
`cc` view save

user output
`cc` view save

Test 9

Verdict: ACCEPTED

input
`2 ceea` view save

correct output
`ce` view save

user output
`ce` view save

Test 10

Verdict: ACCEPTED

input
`1 ccad` view save

correct output
`c` view save

user output
`c` view save

Test 11

Verdict: ACCEPTED

input
`4 ccda` view save

correct output
`cc` view save

user output
`cc` view save

Test 12

Verdict: ACCEPTED

input
`1 defdf` view save

correct output
`d` view save

user output
`e` view save

Test 13

Verdict: ACCEPTED

input
`1 fefaa` view save

correct output
`f` view save

user output
`e` view save

Test 14

Verdict: ACCEPTED

input
`7 bafdf` view save

correct output
`bafdf` view save

user output
`bafdf` view save

Test 15

Verdict: ACCEPTED

input
`1 aefba` view save

correct output
`a` view save

user output
`e` view save

Test 16

Verdict: ACCEPTED

input
`3 cbacc` view save

correct output
`cc` view save

user output
`cc` view save

Test 17

Verdict: ACCEPTED

input
`1 bwvfj` view save

correct output
`b` view save

user output
`w` view save

Test 18

Verdict: ACCEPTED

input
`11 caaca` view save

correct output
`caaca` view save

user output
`caaca` view save

Test 19

Verdict: ACCEPTED

input
`4 fuilz` view save

correct output
`fuil` view save

user output
`fuil` view save

Test 20

Verdict: ACCEPTED

input
`5 acacb` view save

correct output
`aca` view save

user output
`aca` view save

Test 21

Verdict: ACCEPTED

input
`4 jnmma` view save

correct output
`mm` view save

user output
`mm` view save

Test 22

Verdict: ACCEPTED

input
`6 defdfdfcdd` view save

correct output
`defd` view save

user output
`defd` view save

Test 23

Verdict: ACCEPTED

input
`5 fefaabfaba` view save

correct output
`fef` view save

user output
`fef` view save

Test 24

Verdict: ACCEPTED

input
`22 bafdfcccbb` view save

correct output
`bafdfcccbb` view save

user output
`bafdfcccbb` view save

Test 25

Verdict: ACCEPTED

input
`12 aefbaddfcf` view save

correct output
`aefbaddf` view save

user output
`aefbaddf` view save

Test 26

Verdict: ACCEPTED

input
`14 cbacccbcba` view save

correct output
`cccbc` view save

user output
`cccbc` view save

Test 27

Verdict: ACCEPTED

input
`1 bwvfjxzmcp` view save

correct output
`b` view save

user output
`w` view save

Test 28

Verdict: ACCEPTED

input
`17 caacaabacb` view save

correct output
`aacaa` view save

user output
`aacaa` view save

Test 29

Verdict: ACCEPTED

input
`13 fuilzslzio` view save

correct output
`ilzslzi` view save

user output
`ilzslzi` view save

Test 30

Verdict: ACCEPTED

input
`16 acacbbcaba` view save

correct output
`acacbbc` view save

user output
`acacbbc` view save

Test 31

Verdict: ACCEPTED

input
`5 jnmmadidaf` view save

correct output
`nmm` view save

user output
`nmm` view save

Test 32

Verdict: ACCEPTED

input
`278 defdfdfcddccbfafbcceedcdcffaca...` view save

correct output
`fdfcddccbfafbcceedcdcffacadace...` view save

user output
`fdfcddccbfafbcceedcdcffacadace...` view save

Test 33

Verdict: ACCEPTED

input
`32 fefaabfabacbccecfdfcbedbcfbade...` view save

correct output
`cbccecfdfc` view save

user output
`cbccecfdfc` view save

Test 34

Verdict: ACCEPTED

input
`1387 bafdfcccbbabedabcbddedeacddbee...` view save

correct output
`dfcccbbabedabcbddedeacddbeebfd...` view save

user output
`dfcccbbabedabcbddedeacddbeebfd...` view save

Test 35

Verdict: ACCEPTED

input
`190 aefbaddfcfaaabbaaceaaccdbbcecd...` view save

correct output
`aaabbaaceaaccdbbcecdfaedfbccdb...` view save

user output
`aaabbaaceaaccdbbcecdfaedfbccdb...` view save

Test 36

Verdict: ACCEPTED

input
`1205 cbacccbcbaacaacacbbcaabcbcbabb...` view save

correct output
`abbaabccbacacccbabaabaacccbcbc...` view save

user output
`abbaabccbacacccbabaabaacccbcbc...` view save

Test 37

Verdict: ACCEPTED

input
`299 bwvfjxzmcpktjnmhzevcqtvlgetwch...` view save

correct output
`vfjxzmcpktjnmhzevcqtvlgetwchfk...` view save

user output
`vfjxzmcpktjnmhzevcqtvlgetwchfk...` view save

Test 38

Verdict: ACCEPTED

input
`2796 caacaabacbabbbbbbbcbccbbababcc...` view save

correct output
`bacbabbbbbbbcbccbbababccccbbcc...` view save

user output
`bacbabbbbbbbcbccbbababccccbbcc...` view save

Test 39

Verdict: ACCEPTED

input
`345 fuilzslziogncbkgamnrwuijkbrhrx...` view save

correct output
`lziogncbkgamnrwuijkbrhrxsfilyy...` view save

user output
`lziogncbkgamnrwuijkbrhrxsfilyy...` view save

Test 40

Verdict: ACCEPTED

input
`1517 acacbbcababbcbbbcbcbabccbccbab...` view save

correct output
`baaaaaccaaaaababbccbbccaaababb...` view save

user output
`baaaaaccaaaaababbccbbccaaababb...` view save

Test 41

Verdict: ACCEPTED

input
`123 jnmmadidafwkdgdckimeiwjytbzsso...` view save

correct output
`mmadidafwkdgdckimeiwjytbzssodx...` view save

user output
`mmadidafwkdgdckimeiwjytbzssodx...` view save

Test 42

Verdict: ACCEPTED

input
`1079 defdfdfcddccbfafbcceedcdcffaca...` view save

correct output
`fdfdfcddccbfafbcceedcdcffacada...` view save

user output
`fdfdfcddccbfafbcceedcdcffacada...` view save

Test 43

Verdict: ACCEPTED

input
`56 fefaabfabacbccecfdfcbedbcfbade...` view save

correct output
`fbeeefebaedfff` view save

user output
`fbeeefebaedfff` view save

Test 44

Verdict: ACCEPTED

input
`5337 bafdfcccbbabedabcbddedeacddbee...` view save

correct output
`bafdfcccbbabedabcbddedeacddbee...` view save

user output
`bafdfcccbbabedabcbddedeacddbee...` Truncated

Test 45

Verdict: ACCEPTED

input
`744 aefbaddfcfaaabbaaceaaccdbbcecd...` view save

correct output
`cccacdedecabbcdcebdbbcdfddfbeb...` view save

user output
`cccacdedecabbcdcebdbbcdfddfbeb...` view save

Test 46

Verdict: ACCEPTED

input
`10488 cbacccbcbaacaacacbbcaabcbcbabb...` view save

correct output
`bcbcbabbcabbaabccbacacccbabaab...` view save

user output
`bcbcbabbcabbaabccbacacccbabaab...` Truncated

Test 47

Verdict: ACCEPTED

input
`11 bwvfjxzmcpktjnmhzevcqtvlgetwch...` view save

correct output
`pxyyy` view save

user output
`pxyyy` view save

Test 48

Verdict: ACCEPTED

input
`5929 caacaabacbabbbbbbbcbccbbababcc...` view save

correct output
`bbbbbbbcbccbbababccccbbccccbac...` view save

user output
`bbbbbbbcbccbbababccccbbccccbac...` Truncated

Test 49

Verdict: ACCEPTED

input
`1398 fuilzslziogncbkgamnrwuijkbrhrx...` view save

correct output
`gncbkgamnrwuijkbrhrxsfilyygatp...` view save

user output
`gncbkgamnrwuijkbrhrxsfilyygatp...` Truncated

Test 50

Verdict: ACCEPTED

input
`5219 acacbbcababbcbbbcbcbabccbccbab...` view save

correct output
`acbbcababbcbbbcbcbabccbccbabba...` view save

user output
`acbbcababbcbbbcbcbabccbccbabba...` Truncated

Test 51

Verdict: ACCEPTED

input
`450 jnmmadidafwkdgdckimeiwjytbzsso...` view save

correct output
`qmtyjuvzcecnbymqfwyzzergpwuxbt...` view save

user output
`qmtyjuvzcecnbymqfwyzzergpwuxbt...` Truncated

Test 52

Verdict: ACCEPTED

input
`26679 defdfdfcddccbfafbcceedcdcffaca...` view save

correct output
`bcbfacacffbedecaafcecffaffaadd...` view save

user output
`bcbfacacffbedecaafcecffaffaadd...` Truncated

Test 53

Verdict: ACCEPTED

input
`22417 fefaabfabacbccecfdfcbedbcfbade...` view save

correct output
`adefccdcafbeeefebaedfffeaeabba...` view save

user output
`adefccdcafbeeefebaedfffeaeabba...` Truncated

Test 54

Verdict: ACCEPTED

input
`128464 bafdfcccbbabedabcbddedeacddbee...` view save

correct output
`bafdfcccbbabedabcbddedeacddbee...` view save

user output
`bafdfcccbbabedabcbddedeacddbee...` Truncated

Test 55

Verdict: ACCEPTED

input
`10769 aefbaddfcfaaabbaaceaaccdbbcecd...` view save

correct output
`ebefdceecdabceccdeaebdeebdcdfa...` view save

user output
`ebefdceecdabceccdeaebdeebdcdfa...` Truncated

Test 56

Verdict: ACCEPTED

input
`70653 cbacccbcbaacaacacbbcaabcbcbabb...` view save

correct output
`acaaaaaabaaabbccbabbbbcacbccbc...` view save

user output
`acaaaaaabaaabbccbabbbbcacbccbc...` Truncated

Test 57

Verdict: ACCEPTED

input
`233 bwvfjxzmcpktjnmhzevcqtvlgetwch...` view save

correct output
`qfvyojqjvhyfxtvycrjlaoofuebvev...` view save

user output
`qfvyojqjvhyfxtvycrjlaoofuebvev...` view save

Test 58

Verdict: ACCEPTED

input
`116525 caacaabacbabbbbbbbcbccbbababcc...` view save

correct output
`caaabbacabbbabcccbacaaacaaccac...` view save

user output
`caaabbacabbbabcccbacaaacaaccac...` Truncated

Test 59

Verdict: ACCEPTED

input
`27985 fuilzslziogncbkgamnrwuijkbrhrx...` view save

correct output
`uilzslziogncbkgamnrwuijkbrhrxs...` view save

user output
`uilzslziogncbkgamnrwuijkbrhrxs...` Truncated

Test 60

Verdict: ACCEPTED

input
`161959 acacbbcababbcbbbcbcbabccbccbab...` view save

correct output
`acacbbcababbcbbbcbcbabccbccbab...` view save

user output
`acacbbcababbcbbbcbcbabccbccbab...` Truncated

Test 61

Verdict: ACCEPTED

input
`8903 jnmmadidafwkdgdckimeiwjytbzsso...` view save

correct output
`uaguxmabjxfuialfmskifofagvsnkn...` view save

user output
`uaguxmabjxfuialfmskifofagvsnkn...` Truncated

Test 62

Verdict: ACCEPTED

input
`264240357 defdfdfcddccbfafbcceedcdcffaca...` view save

correct output
`badeaccfbabfcceaabffecbffcdcfe...` view save

user output
`badeaccfbabfcceaabffecbffcdcfe...` Truncated

Test 63

Verdict: ACCEPTED

input
`30437082 fefaabfabacbccecfdfcbedbcfbade...` view save

correct output
`acdbbfafacdebdefccfbcfcdeecdfd...` view save

user output
`acdbbfafacdebdefccfbcfcdeecdfd...` Truncated

Test 64

Verdict: ACCEPTED

input
`1280505429 bafdfcccbbabedabcbddedeacddbee...` view save

correct output
`eaceacebbcdfacddcecfceccddfcac...` view save

user output
`eaceacebbcdfacddcecfceccddfcac...` Truncated

Test 65

Verdict: ACCEPTED

input
`107609709 aefbaddfcfaaabbaaceaaccdbbcecd...` view save

correct output
`bffcffbddbfedcccfcdcdfecbbefbe...` view save

user output
`bffcffbddbfedcccfcdcdfecbbefbe...` Truncated

Test 66

Verdict: ACCEPTED

input
`706196896 cbacccbcbaacaacacbbcaabcbcbabb...` view save

correct output
`bccbccccacabcacaaabcccbacbcaba...` view save

user output
`bccbccccacabcacaaabcccbacbcaba...` Truncated

Test 67

Verdict: ACCEPTED

input
`9966992 bwvfjxzmcpktjnmhzevcqtvlgetwch...` view save

correct output
`hljwtcgatnetpvfxeiipnhaarsejbf...` view save

user output
`hljwtcgatnetpvfxeiipnhaarsejbf...` Truncated

Test 68

Verdict: ACCEPTED

input
`1449002782 caacaabacbabbbbbbbcbccbbababcc...` view save

correct output
`acbaabcaababcabcccabcbbaacccca...` view save

user output
`acbaabcaababcabcccabcbbaacccca...` Truncated

Test 69

Verdict: ACCEPTED

input
`275504573 fuilzslziogncbkgamnrwuijkbrhrx...` view save

correct output
`lziogncbkgamnrwuijkbrhrxsfilyy...` view save

user output
`lziogncbkgamnrwuijkbrhrxsfilyy...` Truncated

Test 70

Verdict: ACCEPTED

input
`1480920774 acacbbcababbcbbbcbcbabccbccbab...` view save

correct output
`bcccaccabcaabccaaabcbbacbbbbba...` view save

user output
`bcccaccabcaabccaaabcbbacbbbbba...` Truncated

Test 71

Verdict: ACCEPTED

input
`199518168 jnmmadidafwkdgdckimeiwjytbzsso...` view save

correct output
`mzdiyihtesgshxbshryvzqghavzgrs...` view save

user output
`mzdiyihtesgshxbshryvzqghavzgrs...` Truncated

Aalto Competitive Programming 2025 - wk9 - Mon

Matter++

Code

Test details

Test 1

Test 2

Test 3

Test 4

Test 5

Test 6

Test 7

Test 8

Test 9

Test 10

Test 11

Test 12

Test 13

Test 14

Test 15

Test 16

Test 17

Test 18

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Test 20

Test 21

Test 22

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Test 25

Test 26

Test 27

Test 28

Test 29

Test 30

Test 31

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Test 33

Test 34

Test 35

Test 36

Test 37

Test 38

Test 39

Test 40

Test 41

Test 42

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Test 44

Test 45

Test 46

Test 47

Test 48

Test 49

Test 50

Test 51

Test 52

Test 53

Test 54

Test 55

Test 56

Test 57

Test 58

Test 59

Test 60

Test 61

Test 62

Test 63

Test 64

Test 65

Test 66

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Test 68

Test 69

Test 70

Test 71

Tasks

Submissions (luukwin)