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QOJ

ID题目提交者结果用时内存语言文件大小提交时间测评时间
#125755#5085. Palindrome TypePetroTarnavskyi#AC ✓2ms3596kbC++17848b2023-07-17 15:31:422023-07-17 15:31:42

Judging History

你现在查看的是最新测评结果

  • [2023-08-10 23:21:45]
  • System Update: QOJ starts to keep a history of the judgings of all the submissions.
  • [2023-07-17 15:31:42]
  • 评测
  • 测评结果：AC
  • 用时：2ms
  • 内存：3596kb
查看
  • [2023-07-17 15:31:42]
  • 提交

answer

#include <bits/stdc++.h>
using namespace std;

#define SZ(a) (int)a.size()
#define ALL(a) a.begin(), a.end()
#define FOR(i, a, b) for (int i = (a); i<(b); ++i)
#define RFOR(i, b, a) for (int i = (b)-1; i>=(a); --i)
#define MP make_pair
#define PB push_back
#define F first
#define S second
#define FILL(a, b) memset(a, b, sizeof(a))

typedef long long LL;
typedef pair<int, int> PII;
typedef vector<int> VI;

string s;

bool f(int l, int r, int k)
{
	if (k < 0) return false;
	if (l >= r) return true;
	
	if (s[l] == s[r]) return (f(l + 1, r - 1, k));
	return f(l + 1, r, k - 1) || f(l, r - 1, k - 1);
}

int main()
{
	ios::sync_with_stdio(false);
	cin.tie(0);
	
	cin >> s;
	FOR (k, 0, 4)
	{
		if (f(0, SZ(s) - 1, k))
		{
			cout << k << '\n';
			return 0;
		}
	}
	cout << "-1\n";
		
	
	return 0;
}
源文件, 语言: C++17

详细

Test #1:

score: 100
Accepted
time: 1ms
memory: 3392kb

input:

aababaa

output:

0

result:

ok single line: '0'

Test #2:

score: 0
Accepted
time: 0ms
memory: 3468kb

input:

abccbbab

output:

2

result:

ok single line: '2'

Test #3:

score: 0
Accepted
time: 0ms
memory: 3348kb

input:

acmicpc

output:

-1

result:

ok single line: '-1'

Test #4:

score: 0
Accepted
time: 1ms
memory: 3488kb

input:

aabaa

output:

0

result:

ok single line: '0'

Test #5:

score: 0
Accepted
time: 1ms
memory: 3460kb

input:

abbaa

output:

1

result:

ok single line: '1'

Test #6:

score: 0
Accepted
time: 1ms
memory: 3396kb

input:

abcde

output:

-1

result:

ok single line: '-1'

Test #7:

score: 0
Accepted
time: 1ms
memory: 3468kb

input:

abcda

output:

2

result:

ok single line: '2'

Test #8:

score: 0
Accepted
time: 0ms
memory: 3464kb

input:

abaabba

output:

1

result:

ok single line: '1'

Test #9:

score: 0
Accepted
time: 1ms
memory: 3392kb

input:

bbbaaa

output:

3

result:

ok single line: '3'

Test #10:

score: 0
Accepted
time: 1ms
memory: 3364kb

input:

abbccba

output:

1

result:

ok single line: '1'

Test #11:

score: 0
Accepted
time: 0ms
memory: 3368kb

input:

abcabcb

output:

2

result:

ok single line: '2'

Test #12:

score: 0
Accepted
time: 1ms
memory: 3428kb

input:

bababbababb

output:

1

result:

ok single line: '1'

Test #13:

score: 0
Accepted
time: 0ms
memory: 3368kb

input:

bccaacacaaacaacaab

output:

3

result:

ok single line: '3'

Test #14:

score: 0
Accepted
time: 1ms
memory: 3432kb

input:

ienkzavpcizlzdhkhdzlzcpvzzknei

output:

3

result:

ok single line: '3'

Test #15:

score: 0
Accepted
time: 1ms
memory: 3372kb

input:

xebhsigufoeitoeotieofuygidshbx

output:

3

result:

ok single line: '3'

Test #16:

score: 0
Accepted
time: 1ms
memory: 3352kb

input:

dhnthbvccwreeksxyvrprgmtvxqsmfdpoqlwrgywdrrdwygrwlqopdfmsqxvtmgrprvyxskeerwccvbhtnhbd

output:

1

result:

ok single line: '1'

Test #17:

score: 0
Accepted
time: 1ms
memory: 3372kb

input:

iixcpzhlsmoymepzvowvhemuvyolonyylvxdnwkaqzoolugmguloozqakwndxvyynoloyvumehvwovzpemyomslhzpcxii

output:

1

result:

ok single line: '1'

Test #18:

score: 0
Accepted
time: 1ms
memory: 3340kb

input:

ktivgldiwuvvuwfuimxbwnfuxjbkveugxcddpjnnfliajowtcwuyjztglwqgcmozouefdssifakoqhhsfdtodowqmmypapymmqwodotdfshhqokafissdfeuozomcgqwlgtzjyuwctwojailfnnjpddcxguevkbjxufnwbxmiufwuvvuwidlgvitk

output:

0

result:

ok single line: '0'

Test #19:

score: 0
Accepted
time: 1ms
memory: 3488kb

input:

brawtvyoegtlxrsmihfugdhxevyofongrghnzcnqivjvuaogkvcryjqegqtlgiuxobmpfzfnwriqrywcuzvswknzreuekcaisiackeuerznkvsvzucwyrqirwnfzfpmbogxuigltqgeqjyrcvkgoauvjviqncznhgrgnofoyvexhdgufimsrxltgeoyvtwarb

output:

-1

result:

ok single line: '-1'

Test #20:

score: 0
Accepted
time: 1ms
memory: 3344kb

input:

bjrdlkkeuxwpuleskensyvgaoqpfqxpuiixwuhaohwgdjmvtsknsfwsvokdfhubqfyozhoqomytdxkoqdygvgcqdqaixhdyzkypllpykzydhxiaqdqcgvgydqokxtymoqohzoyfqbuhfdkovswfsnkstvmjdgwhoahuwxiiupxqfpqoagvysnerkselupwxuekkldrjb

output:

2

result:

ok single line: '2'

Test #21:

score: 0
Accepted
time: 1ms
memory: 3476kb

input:

xyrquyctbtomlifsvzqwszovnmwdxrvurmmmnqhqkxfxfkpcliydhoaxawcynyuhmjvzzcslaxjhjymugkxqzapbwrwbmpytehodisxuuwdefibqzkczcdzrfvkijcgcgnqlyljsffxjlabjmkelohkfoisxrudwatolrzwlhcispiubvynjfzruhjtbdwzfrnqkpnvwrfoofrwvnpkqnrfzwdbtjhurzfjnyvbuipsichlwzrlotawdurxsiofkholekmbaljxffsjlylqngcgcjikvfrzdczckzqbfedwu...

output:

3

result:

ok single line: '3'

Test #22:

score: 0
Accepted
time: 1ms
memory: 3516kb

input:

qcnwmzuexrrrhwsstqipfmfithltdizvmmsznmfkgydnuxhnnsetekbxtoqwyprkdllsasfgqivkgcavueoyqrxjhqhhhbunmffmakusvpfdufyqlpregopqgzxoarbmzibztvtqnythdrxrgoxpfmfllebnwccxndygarwnqpuviuopklerylflpgznlbkyeiggceuuvqpdkesxryorjtjroyrxsekdpqvuuecggieykblnzgplflyrelkpouivupqnwragydnxccwnbellfmfpmxogrxrdhtynqtvtzbiz...

output:

3

result:

ok single line: '3'

Test #23:

score: 0
Accepted
time: 1ms
memory: 3520kb

input:

oftswowkrbmtqnhocbhzylujkfczlllbqetptrzmvlhnbredslesyybigdirotugxpvsiwhfkotlfxqzkutiuwqabatrtnytcvllsuqcjlnqidquzlctitwjvpbpdbihwvsoqlszwhrhmjblvghfbdqwstlxuvfrrzhjkakjjbswlvhibonctdbozmltksmdswmeywphzhdkfnsgdhlxnmnmayhmruplsbpqzfzqpbslpurmhyamnmnoxlhdgsnfkdhzhpwyemwsdmsktlmzobdtcsnobihvlwsbjjkakjhz...

output:

-1

result:

ok single line: '-1'

Test #24:

score: 0
Accepted
time: 1ms
memory: 3496kb

input:

gflwyilnakfxxxbrebxqjyzoaxuqhxwncjmcsxpsjvrissbyuzjqfzpvzoppvoolqxxspwkjffbqzvrxpsnxsesrtkjqyxbpwyjmwtxeyyuzwnwlglkyqdrlncbnzdewdokcjjgkkajgnitvtevlhpwwrajrdopiebknksxushairudkazyhqufhuoazerkkswyfpxzjgcrxyxkyyihocmvzcwajnkvijtnytohbsbzzbsbhotyntjivknjawczvmcohiyykxyxrcgjzxpfywskkrezaouhfuqhyzakduria...

output:

2

result:

ok single line: '2'

Test #25:

score: 0
Accepted
time: 1ms
memory: 3424kb

input:

qpvpahejsenjqjravaqxyukdqfratgqkvlbxufhnlwybfpdcquzoqjrgoliiryugojxoedvtotrsygvayramijgoatzimxecjbqnglgxezrefofeghsqqagstfchdgkmkabsojpsiizpxetdnovfobykharmjbytcbnskfkunljkrfpevkkjmivvinhrqhmskamwhxqukbhcgwgdjqvnxyiuhxbaokniwpvswuiselzguynxhxnyugzlesiuwsvpwinkoabxhuiyxnqjdgwgchbkuqxhwmaksmhqrhnivvim...

output:

2

result:

ok single line: '2'

Test #26:

score: 0
Accepted
time: 1ms
memory: 3372kb

input:

vvpefnuxjwrigvnbfrusdhwtqqlpeqgbmvfricrtaiegdrikkeeolbhcrstxlzzxxgqfihbjrfrwyzgjelxpoetfzofmoejlmzsvjvgaaxxbzfkdqjuenqmoetauzlflnagwxowymvbnblstumyjemajfcdgolrbnazkovkcrlpuyhnuwneabgliipoycgbrgabuyozrbolawyuuoaupiiytxmrbuvscvvzvjymnmzpkyjgombduldpishlmedpbaoxmojzajonjztznwckhizraicomhdoktnwhwxkhlxsm...

output:

-1

result:

ok single line: '-1'

Test #27:

score: 0
Accepted
time: 0ms
memory: 3476kb

input:

eqejbhvitsyijlbloupxipxsczvunzmrprdsyadssbcemepcagclxzfzybunaghpzkkymnsfqujfaahbgjmdkreisyyuhfmgrwgdjaizvtextoybzmgkglualsvuzjdqfjwomgphaugvihzjthtbsqegkbckkfcpryddfsmhoseyzdivldwftcnedqqnvscothrycfhqylpzpzucetjyvxeznwokorzjyshayotwckxrjsvnnenkdtlqpadgtcpruzuspnqrxokiifxxmlhpgtiyvleopvhjwbemqwfpkqxu...

output:

1

result:

ok single line: '1'

Test #28:

score: 0
Accepted
time: 1ms
memory: 3396kb

input:

fsdarrxlmzsffruegoplsphgvvndlyissmujfrxrsrwyisergtcbiljgixlvxuprijbncagurcubuyucuyfelrmtoyqlufeeohrqhxnabhexiyzczhgkytgotybpeftunmnwlaxmjdlrdmvcteptzvhsvijzocwdqjzblypubaohmljipaboxjittrujvqmlbmommdjqfzxskgacjbsgmbziuwrsmefosucgzlwfmtxxczblatrputxrpqjduotoiwvijrnylmvnlyanrreombfduqhqecfpyczkvoiicfxn...

output:

2

result:

ok single line: '2'

Test #29:

score: 0
Accepted
time: 1ms
memory: 3400kb

input:

utwglhanestizpssmlspkuqfwsxehvcbqakdkkqoemyfbsyqeqfomxuirrpyotagtkjfubvapugrmejswqjjnftfykfodfuzrfeniaoywurkacdwsmhhtdolrnufrbbstiwgqyuqwqhhsjkpdyylrdzirvpkxqeqycyqbvhxlqgeaqvdqvqjzstsniekaicakdrnyynlotpqmmwckmojehdsshesrjtdmkrkkevaxntjbpolbcwilzcdigwbrrfddwpncnpbcildxbrbdpjorlsztqdlhiqmggzitqlxzway...

output:

1

result:

ok single line: '1'

Test #30:

score: 0
Accepted
time: 1ms
memory: 3408kb

input:

mjnrimbykkhyovdmoihymbmxrektnvxzhmsrzwpjiziwullivsjhvvgpbrioohpvukmtgeeofomzzxjxrugprngseoisxyqriemqirgnfsohsaelumcoziifyrawpqpzuerfvxucrjlllrxhezvdkejivjgmbynxcgczdxbwinitehakiyosczdzklnljaklinmlmojudrpjapujnkdrjgstufgdhqrpfdcrtmlydciesephosbxbtsxzyagqtwwzynumbtqddwxhnfvfiuibmfamijcdhaehozurumuxiug...

output:

0

result:

ok single line: '0'

Test #31:

score: 0
Accepted
time: 1ms
memory: 3456kb

input:

bhpkjaznrfnylldmqvvpnuhpkpwtdkrgugqdjpsaxfzkreyhbtyqoigaxetcrkiltzqeqiennfygmwopsogiwoiwubylnjyiiomawtomaosmmicgxkovawruzsipdgxlvmnrfdffryugiymhiddkzwgzqoqtvngszulgxrmrrgxzelhoomaqigrbxhuuudmwxxcwqqnhymheyquocuemdxpaemubpizofbkyuyfskozkgtbkohxtfotjapmpxldepqcjokdaycnfyopovohafamfryxokcszsxkihpjhswms...

output:

3

result:

ok single line: '3'

Test #32:

score: 0
Accepted
time: 1ms
memory: 3548kb

input:

uacxtttozkcjyxssksfpmxwymchyhsobssbllwbngfwgepyojfdveawredplvfppyqalmeyvlxbsmcgvhmtmopfsuwfrbugbminzonwckxuybcwlqpzegeycaevdadhnnwocjkgwjauleqyvhxbpdarfgmkirrvfnljxvpvfrpsviqqppufswyzcnjmebkjovsnrhkyyaqwkiobxiirehqiuzvycfktacitmtrmvjifrxgofrfkyxuuzpubweuzjdsvymhtvsynpgdwxlixidrhumjrqfqzkkwiwebsybhnk...

output:

1

result:

ok single line: '1'

Test #33:

score: 0
Accepted
time: 0ms
memory: 3444kb

input:

obncmueifwcccegxvkszhqkrnpmeyvmnwbpkxvsctufvaluvvmxfchwsxkwxfkmdnbpkwhopdtmehgbesyjxifphsnezzrfmuuytcmkhgznnfptapdxxkoecdlecejqydothaepidexktrkjujiexpjcangeywebmylpccxhgxtaoelkpvqpkbrkqyoowtsjtdyxhvenuzpifcuvynkiodvfbltyenjzqhwzecnzccjhheefropfskmvwivcvecolynqdarffaoogttxjifdtrbrbwtxbvlowyezbxgiyuwe...

output:

2

result:

ok single line: '2'

Test #34:

score: 0
Accepted
time: 1ms
memory: 3444kb

input:

bcqatarjdfzvabdynnqexqgutwlrxbtadjdyjujpzikbknbxcrezkkwdjhvgioinzlllhvagdmjncllecrembasmjnurddgeqrpymrgseqfgbskfjqunqmzzbwsgzykpqcpetwwzmchpwuwiksvbgwahstpttaljeaoxwmzkqgznayxlqsoxqogljwedwpoasezorabhhawjatwrnkogburmqxroniqhmsxfsypbznnzhjswwicxfvlvtdmilepzymfrlwumjhnqrgppqtmvpztiefqplhrktydguxsdhiwa...

output:

-1

result:

ok single line: '-1'

Test #35:

score: 0
Accepted
time: 1ms
memory: 3528kb

input:

lcilalfjkasdtvoaqixcyuskcezhfzgsepfgclponhriefixpgzncsagyzodawvenalpnafdkylqfwnucpighknhldklzhqnjbexbkankngqjtknkuurehypkkbltrydsfcvrelbtrrdmcqxwkqbtrsfbvrvmragweenippdiggukzrhlikfzekcabzmtbvrfzfpqwtyebspamymwirxmdbmhbbacytkxybnwulbwfsyrqkpadmohodorgqvejfbkhqgddjbidactktvqgmxwpnnvfiboqeaxujcxuehyelt...

output:

2

result:

ok single line: '2'

Test #36:

score: 0
Accepted
time: 1ms
memory: 3420kb

input:

wwjucpbthcaienbdkgxfwpptwgzxumytkhnnyoigsjowyrbixyqupfplnojkdjdpqqcognwywmxwdygbzwxoemctdndiwixmyccgpzhnlejpersdorsudwpijtqhbqvcsxkjyrykxjbcavfqmzkrvccgxsnakiceipngilsgwtkxqpncrawoeyvbskbdtghbvxjdkclhxveontsevoszopahackvktyhqhmbjykhvoxijpofgjguyjbynntxjrezbqckqmtmcqumgltmubiskktxzouiiakjrmvhbptdfqrl...

output:

2

result:

ok single line: '2'

Test #37:

score: 0
Accepted
time: 1ms
memory: 3536kb

input:

euajjxjlrejaxbyvxobwfcuruietgnnmhoxrlheelpfktfgqvhpbllufuyacooqxcoqpvxvimatfhzydipgtaaawbaarorosfhjcefmshfapgyuonajpcjmdmmucflvmugoyldsvismrqgffirxkcjqoxmrfxortuirilmdvepmxxuefnbppmhgmuzrtnknjsgrfswbxnpwkjarwcjoqqucktveigtrazlgsjjrxanjkpdirmykcsmpnivvqopqnayhjjyiknswdvewjdgnxvcldzivnxldxkkjtlrfylbbi...

output:

3

result:

ok single line: '3'

Test #38:

score: 0
Accepted
time: 1ms
memory: 3452kb

input:

ryqikpuwkabqupuqkxvqocdyzphkqsxksnsccobpqcflrzddzzundzneowphpmrhclmgznvppcahegkffgskfhouedbvsueufqaefyvvayeeeojlxdvcnjyrpbohvubcndisbepeetiikuvhzqlmbkfqnvxjqaldguxhapneiyousjbtzpgcbltohsxzvlebhbkjsynbydvsmzlnqrprfkfoffnaqtdzwpippxsnanfmorzekqxrddfikukanpbmejbugthgipuzgvfsndkqirasmmubbvpigqcmlluuaqvi...

output:

3

result:

ok single line: '3'

Test #39:

score: 0
Accepted
time: 1ms
memory: 3544kb

input:

qfwcuvpxrmdracykkzznjqjuohtsztqpaotwkitdxyuzcvmnwlafdmztvsounemptfmfqhipgfoiaaxwoadtocnjwbgmhsbczpjrxugdzvnbvnzlncfdgumcxsoeksjmhsdemkjnfzocmnobrvexpqcmlsqxkbjuupyizkwgjkkvaawtvctksvwfppdaqowmduveermpdxkfxizvkuffpekgtpglgcyjztqfmcvrbhxzqywcsbjjfwpalymrckddftjrxgkznhafhwkbxtkfpcfdcrwedbiiwtbuzmvovvud...

output:

-1

result:

ok single line: '-1'

Test #40:

score: 0
Accepted
time: 2ms
memory: 3512kb

input:

qepycslklynhzkkruaucaztyrazoomsgqhevzrfmpuvpefiahffieyixajlovfuomylnsschmxytfhvmoawuyfryoeomkicyjnobfqktpjmusijgkfcjmtjdxyphirirgwunmfgdqvykdhsnouybnkemkvuuoemuaihopprfkrrpajfpddsspyfbtbwhfkdfsmtibmpmejbgsgvwmpqdnvfgwbpdluidgdnisfwwoxeigagsrxvfsanrdfuozfsikhqcomaelfnrhtlyqjdlltcpyyfzdzhohzqxntczypsf...

output:

3

result:

ok single line: '3'

Test #41:

score: 0
Accepted
time: 0ms
memory: 3512kb

input:

pjpylsynxoiagfroxaynqykxlarebqcqcuqpmocjemlnredrfbevzptnrmtuevngpdxcuznanznfdqwkucgttbilnbfrzuaoyxquzgumhktmcpxwudsngaytegmdaotammunsrbzbvldkkaepsuvusoayddbrxbfjysdpucqrpvdcxkrrenmwbmxgsyyrbfczyhoulglaeqcbautejhbkvatnargbwkdwrtscaffgwjhwfcbojebfguugndjlnokficjkkoqgazefchulnvstrnbesnrfbbmjgwtqmlymles...

output:

1

result:

ok single line: '1'

Test #42:

score: 0
Accepted
time: 1ms
memory: 3596kb

input:

bcqatarjdfzvabdynnqexqgutwlrxbtadjdyjujpzikbknbxcrezkkwdjhvgioinzlllhvagdmjncllecrembasmjnurddgeqrpymrgseqfgbskfjqunqmzzbwsgzykpqcpetwwzmchpwuwiksvbgwahstpttaljeaoxwmzkqgznayxlqsoxqogljwedwpoasezorabhhawjatwrnkogburmqxroniqhmsxfsypbznnzhjswwicxfvlvtdmilepzymfrlwumjhnqrgppqtmvpztiefqplhrktydguxsdhiwa...

output:

-1

result:

ok single line: '-1'

Test #43:

score: 0
Accepted
time: 0ms
memory: 3596kb

input:

vfitessxgeejhcxbbtxlnvvrhzfvngpkoxespwpxavgjafnbykolfjfnlkiatzkhwobnmqlpntynzlqxwgjdqosdacdtbncxedlqvyflreaqrrqpxbtprnsrqvnrlprpvefqclbvrcokveauhvkyiepacesnulcpphhtujonneyikaerxopfvfixjamflowcxevunljcqhmajqughjocqwbcynhldenaikwxxgbnpnqzdkhkvxomtrotexghbtklfikdolsgakhgwossmhehyudfrjovfygkjtpxgkfhumpt...

output:

2

result:

ok single line: '2'
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