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IDProblemSubmitterResultTimeMemoryLanguageFile sizeSubmit timeJudge time
#304086#5085. Palindrome Typewarner1129#AC ✓4ms3944kbC++201.9kb2024-01-13 14:06:042024-01-13 14:06:06

Judging History

你现在查看的是最新测评结果

  • [2024-01-13 14:06:06]
  • 评测
  • 测评结果:AC
  • 用时:4ms
  • 内存:3944kb
  • [2024-01-13 14:06:04]
  • 提交

answer

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

template<ranges::range T, class = enable_if_t<!is_convertible_v<T, string_view>>>
istream& operator>>(istream &s, T &&v) { for (auto &&x : v) s >> x; return s; }
template<ranges::range T, class = enable_if_t<!is_convertible_v<T, string_view>>>
ostream& operator<<(ostream &s, T &&v) { for (auto &&x : v) s << x << ' '; return s; }
 
#ifdef LOCAL
template<class... T> void dbg(T... x) { char e{}; ((cerr << e << x, e = ' '), ...); }
#define debug(x...) dbg(#x, '=', x, '\n')
#else
#define debug(...) ((void)0)
#endif
 
#define all(v) (v).begin(), (v).end()
#define rall(v) (v).rbegin(), (v).rend()
#define ff first
#define ss second
 
using u32 = unsigned int;
using i64 = long long;
using u64 = unsigned long long;
using i128 = __int128;
using u128 = unsigned __int128;
using Pt = pair<double, double>;
 
template<class T> inline constexpr T inf = numeric_limits<T>::max() / 2;
constexpr int mod = 1e9 + 7, inv2 = (mod + 1) / 2;
constexpr double eps = 1e-9;
 
template<class T> bool chmin(T &a, T b) { return (b < a and (a = b, true)); }
template<class T> bool chmax(T &a, T b) { return (a < b and (a = b, true)); }

void solve() {
    string S;
    cin >> S;

    string T = string(rall(S));
    int n = S.size();

    vector<int> dp;
    for (int i = 0; i < n; i++)
        for (int j = i + 5; j >= i - 5; j--)
            if (0 <= j and j < n and S[i] == T[j]) {

                int p = j;
                auto it = lower_bound(all(dp), p);
                if (it == dp.end()) {
                    dp.push_back(p);
                } else {
                    chmin(*it, p);
                }
            }

    int x = n - dp.size();
    if (x >= 4) cout << -1 << '\n';
    else cout << x<< '\n';

    
}
 
signed main() {
    cin.tie(0)->sync_with_stdio(false);
    cin.exceptions(cin.failbit);
    int T = 1;
    // cin >> T;
    while (T--) {
        solve();
    }
    return 0;
}

Details

Tip: Click on the bar to expand more detailed information

Test #1:

score: 100
Accepted
time: 1ms
memory: 3508kb

input:

aababaa

output:

0

result:

ok single line: '0'

Test #2:

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

input:

abccbbab

output:

2

result:

ok single line: '2'

Test #3:

score: 0
Accepted
time: 0ms
memory: 3472kb

input:

acmicpc

output:

-1

result:

ok single line: '-1'

Test #4:

score: 0
Accepted
time: 1ms
memory: 3464kb

input:

aabaa

output:

0

result:

ok single line: '0'

Test #5:

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

input:

abbaa

output:

1

result:

ok single line: '1'

Test #6:

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

input:

abcde

output:

-1

result:

ok single line: '-1'

Test #7:

score: 0
Accepted
time: 1ms
memory: 3436kb

input:

abcda

output:

2

result:

ok single line: '2'

Test #8:

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

input:

abaabba

output:

1

result:

ok single line: '1'

Test #9:

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

input:

bbbaaa

output:

3

result:

ok single line: '3'

Test #10:

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

input:

abbccba

output:

1

result:

ok single line: '1'

Test #11:

score: 0
Accepted
time: 1ms
memory: 3416kb

input:

abcabcb

output:

2

result:

ok single line: '2'

Test #12:

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

input:

bababbababb

output:

1

result:

ok single line: '1'

Test #13:

score: 0
Accepted
time: 0ms
memory: 3508kb

input:

bccaacacaaacaacaab

output:

3

result:

ok single line: '3'

Test #14:

score: 0
Accepted
time: 0ms
memory: 3416kb

input:

ienkzavpcizlzdhkhdzlzcpvzzknei

output:

3

result:

ok single line: '3'

Test #15:

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

input:

xebhsigufoeitoeotieofuygidshbx

output:

3

result:

ok single line: '3'

Test #16:

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

input:

dhnthbvccwreeksxyvrprgmtvxqsmfdpoqlwrgywdrrdwygrwlqopdfmsqxvtmgrprvyxskeerwccvbhtnhbd

output:

1

result:

ok single line: '1'

Test #17:

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

input:

iixcpzhlsmoymepzvowvhemuvyolonyylvxdnwkaqzoolugmguloozqakwndxvyynoloyvumehvwovzpemyomslhzpcxii

output:

1

result:

ok single line: '1'

Test #18:

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

input:

ktivgldiwuvvuwfuimxbwnfuxjbkveugxcddpjnnfliajowtcwuyjztglwqgcmozouefdssifakoqhhsfdtodowqmmypapymmqwodotdfshhqokafissdfeuozomcgqwlgtzjyuwctwojailfnnjpddcxguevkbjxufnwbxmiufwuvvuwidlgvitk

output:

0

result:

ok single line: '0'

Test #19:

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

input:

brawtvyoegtlxrsmihfugdhxevyofongrghnzcnqivjvuaogkvcryjqegqtlgiuxobmpfzfnwriqrywcuzvswknzreuekcaisiackeuerznkvsvzucwyrqirwnfzfpmbogxuigltqgeqjyrcvkgoauvjviqncznhgrgnofoyvexhdgufimsrxltgeoyvtwarb

output:

-1

result:

ok single line: '-1'

Test #20:

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

input:

bjrdlkkeuxwpuleskensyvgaoqpfqxpuiixwuhaohwgdjmvtsknsfwsvokdfhubqfyozhoqomytdxkoqdygvgcqdqaixhdyzkypllpykzydhxiaqdqcgvgydqokxtymoqohzoyfqbuhfdkovswfsnkstvmjdgwhoahuwxiiupxqfpqoagvysnerkselupwxuekkldrjb

output:

2

result:

ok single line: '2'

Test #21:

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

input:

xyrquyctbtomlifsvzqwszovnmwdxrvurmmmnqhqkxfxfkpcliydhoaxawcynyuhmjvzzcslaxjhjymugkxqzapbwrwbmpytehodisxuuwdefibqzkczcdzrfvkijcgcgnqlyljsffxjlabjmkelohkfoisxrudwatolrzwlhcispiubvynjfzruhjtbdwzfrnqkpnvwrfoofrwvnpkqnrfzwdbtjhurzfjnyvbuipsichlwzrlotawdurxsiofkholekmbaljxffsjlylqngcgcjikvfrzdczckzqbfedwu...

output:

3

result:

ok single line: '3'

Test #22:

score: 0
Accepted
time: 0ms
memory: 3480kb

input:

qcnwmzuexrrrhwsstqipfmfithltdizvmmsznmfkgydnuxhnnsetekbxtoqwyprkdllsasfgqivkgcavueoyqrxjhqhhhbunmffmakusvpfdufyqlpregopqgzxoarbmzibztvtqnythdrxrgoxpfmfllebnwccxndygarwnqpuviuopklerylflpgznlbkyeiggceuuvqpdkesxryorjtjroyrxsekdpqvuuecggieykblnzgplflyrelkpouivupqnwragydnxccwnbellfmfpmxogrxrdhtynqtvtzbiz...

output:

3

result:

ok single line: '3'

Test #23:

score: 0
Accepted
time: 0ms
memory: 3436kb

input:

oftswowkrbmtqnhocbhzylujkfczlllbqetptrzmvlhnbredslesyybigdirotugxpvsiwhfkotlfxqzkutiuwqabatrtnytcvllsuqcjlnqidquzlctitwjvpbpdbihwvsoqlszwhrhmjblvghfbdqwstlxuvfrrzhjkakjjbswlvhibonctdbozmltksmdswmeywphzhdkfnsgdhlxnmnmayhmruplsbpqzfzqpbslpurmhyamnmnoxlhdgsnfkdhzhpwyemwsdmsktlmzobdtcsnobihvlwsbjjkakjhz...

output:

-1

result:

ok single line: '-1'

Test #24:

score: 0
Accepted
time: 1ms
memory: 3564kb

input:

gflwyilnakfxxxbrebxqjyzoaxuqhxwncjmcsxpsjvrissbyuzjqfzpvzoppvoolqxxspwkjffbqzvrxpsnxsesrtkjqyxbpwyjmwtxeyyuzwnwlglkyqdrlncbnzdewdokcjjgkkajgnitvtevlhpwwrajrdopiebknksxushairudkazyhqufhuoazerkkswyfpxzjgcrxyxkyyihocmvzcwajnkvijtnytohbsbzzbsbhotyntjivknjawczvmcohiyykxyxrcgjzxpfywskkrezaouhfuqhyzakduria...

output:

2

result:

ok single line: '2'

Test #25:

score: 0
Accepted
time: 1ms
memory: 3484kb

input:

qpvpahejsenjqjravaqxyukdqfratgqkvlbxufhnlwybfpdcquzoqjrgoliiryugojxoedvtotrsygvayramijgoatzimxecjbqnglgxezrefofeghsqqagstfchdgkmkabsojpsiizpxetdnovfobykharmjbytcbnskfkunljkrfpevkkjmivvinhrqhmskamwhxqukbhcgwgdjqvnxyiuhxbaokniwpvswuiselzguynxhxnyugzlesiuwsvpwinkoabxhuiyxnqjdgwgchbkuqxhwmaksmhqrhnivvim...

output:

2

result:

ok single line: '2'

Test #26:

score: 0
Accepted
time: 1ms
memory: 3448kb

input:

vvpefnuxjwrigvnbfrusdhwtqqlpeqgbmvfricrtaiegdrikkeeolbhcrstxlzzxxgqfihbjrfrwyzgjelxpoetfzofmoejlmzsvjvgaaxxbzfkdqjuenqmoetauzlflnagwxowymvbnblstumyjemajfcdgolrbnazkovkcrlpuyhnuwneabgliipoycgbrgabuyozrbolawyuuoaupiiytxmrbuvscvvzvjymnmzpkyjgombduldpishlmedpbaoxmojzajonjztznwckhizraicomhdoktnwhwxkhlxsm...

output:

-1

result:

ok single line: '-1'

Test #27:

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

input:

eqejbhvitsyijlbloupxipxsczvunzmrprdsyadssbcemepcagclxzfzybunaghpzkkymnsfqujfaahbgjmdkreisyyuhfmgrwgdjaizvtextoybzmgkglualsvuzjdqfjwomgphaugvihzjthtbsqegkbckkfcpryddfsmhoseyzdivldwftcnedqqnvscothrycfhqylpzpzucetjyvxeznwokorzjyshayotwckxrjsvnnenkdtlqpadgtcpruzuspnqrxokiifxxmlhpgtiyvleopvhjwbemqwfpkqxu...

output:

1

result:

ok single line: '1'

Test #28:

score: 0
Accepted
time: 0ms
memory: 3492kb

input:

fsdarrxlmzsffruegoplsphgvvndlyissmujfrxrsrwyisergtcbiljgixlvxuprijbncagurcubuyucuyfelrmtoyqlufeeohrqhxnabhexiyzczhgkytgotybpeftunmnwlaxmjdlrdmvcteptzvhsvijzocwdqjzblypubaohmljipaboxjittrujvqmlbmommdjqfzxskgacjbsgmbziuwrsmefosucgzlwfmtxxczblatrputxrpqjduotoiwvijrnylmvnlyanrreombfduqhqecfpyczkvoiicfxn...

output:

2

result:

ok single line: '2'

Test #29:

score: 0
Accepted
time: 1ms
memory: 3500kb

input:

utwglhanestizpssmlspkuqfwsxehvcbqakdkkqoemyfbsyqeqfomxuirrpyotagtkjfubvapugrmejswqjjnftfykfodfuzrfeniaoywurkacdwsmhhtdolrnufrbbstiwgqyuqwqhhsjkpdyylrdzirvpkxqeqycyqbvhxlqgeaqvdqvqjzstsniekaicakdrnyynlotpqmmwckmojehdsshesrjtdmkrkkevaxntjbpolbcwilzcdigwbrrfddwpncnpbcildxbrbdpjorlsztqdlhiqmggzitqlxzway...

output:

1

result:

ok single line: '1'

Test #30:

score: 0
Accepted
time: 1ms
memory: 3564kb

input:

mjnrimbykkhyovdmoihymbmxrektnvxzhmsrzwpjiziwullivsjhvvgpbrioohpvukmtgeeofomzzxjxrugprngseoisxyqriemqirgnfsohsaelumcoziifyrawpqpzuerfvxucrjlllrxhezvdkejivjgmbynxcgczdxbwinitehakiyosczdzklnljaklinmlmojudrpjapujnkdrjgstufgdhqrpfdcrtmlydciesephosbxbtsxzyagqtwwzynumbtqddwxhnfvfiuibmfamijcdhaehozurumuxiug...

output:

0

result:

ok single line: '0'

Test #31:

score: 0
Accepted
time: 0ms
memory: 3564kb

input:

bhpkjaznrfnylldmqvvpnuhpkpwtdkrgugqdjpsaxfzkreyhbtyqoigaxetcrkiltzqeqiennfygmwopsogiwoiwubylnjyiiomawtomaosmmicgxkovawruzsipdgxlvmnrfdffryugiymhiddkzwgzqoqtvngszulgxrmrrgxzelhoomaqigrbxhuuudmwxxcwqqnhymheyquocuemdxpaemubpizofbkyuyfskozkgtbkohxtfotjapmpxldepqcjokdaycnfyopovohafamfryxokcszsxkihpjhswms...

output:

3

result:

ok single line: '3'

Test #32:

score: 0
Accepted
time: 1ms
memory: 3560kb

input:

uacxtttozkcjyxssksfpmxwymchyhsobssbllwbngfwgepyojfdveawredplvfppyqalmeyvlxbsmcgvhmtmopfsuwfrbugbminzonwckxuybcwlqpzegeycaevdadhnnwocjkgwjauleqyvhxbpdarfgmkirrvfnljxvpvfrpsviqqppufswyzcnjmebkjovsnrhkyyaqwkiobxiirehqiuzvycfktacitmtrmvjifrxgofrfkyxuuzpubweuzjdsvymhtvsynpgdwxlixidrhumjrqfqzkkwiwebsybhnk...

output:

1

result:

ok single line: '1'

Test #33:

score: 0
Accepted
time: 1ms
memory: 3612kb

input:

obncmueifwcccegxvkszhqkrnpmeyvmnwbpkxvsctufvaluvvmxfchwsxkwxfkmdnbpkwhopdtmehgbesyjxifphsnezzrfmuuytcmkhgznnfptapdxxkoecdlecejqydothaepidexktrkjujiexpjcangeywebmylpccxhgxtaoelkpvqpkbrkqyoowtsjtdyxhvenuzpifcuvynkiodvfbltyenjzqhwzecnzccjhheefropfskmvwivcvecolynqdarffaoogttxjifdtrbrbwtxbvlowyezbxgiyuwe...

output:

2

result:

ok single line: '2'

Test #34:

score: 0
Accepted
time: 1ms
memory: 3616kb

input:

bcqatarjdfzvabdynnqexqgutwlrxbtadjdyjujpzikbknbxcrezkkwdjhvgioinzlllhvagdmjncllecrembasmjnurddgeqrpymrgseqfgbskfjqunqmzzbwsgzykpqcpetwwzmchpwuwiksvbgwahstpttaljeaoxwmzkqgznayxlqsoxqogljwedwpoasezorabhhawjatwrnkogburmqxroniqhmsxfsypbznnzhjswwicxfvlvtdmilepzymfrlwumjhnqrgppqtmvpztiefqplhrktydguxsdhiwa...

output:

-1

result:

ok single line: '-1'

Test #35:

score: 0
Accepted
time: 0ms
memory: 3612kb

input:

lcilalfjkasdtvoaqixcyuskcezhfzgsepfgclponhriefixpgzncsagyzodawvenalpnafdkylqfwnucpighknhldklzhqnjbexbkankngqjtknkuurehypkkbltrydsfcvrelbtrrdmcqxwkqbtrsfbvrvmragweenippdiggukzrhlikfzekcabzmtbvrfzfpqwtyebspamymwirxmdbmhbbacytkxybnwulbwfsyrqkpadmohodorgqvejfbkhqgddjbidactktvqgmxwpnnvfiboqeaxujcxuehyelt...

output:

2

result:

ok single line: '2'

Test #36:

score: 0
Accepted
time: 1ms
memory: 3604kb

input:

wwjucpbthcaienbdkgxfwpptwgzxumytkhnnyoigsjowyrbixyqupfplnojkdjdpqqcognwywmxwdygbzwxoemctdndiwixmyccgpzhnlejpersdorsudwpijtqhbqvcsxkjyrykxjbcavfqmzkrvccgxsnakiceipngilsgwtkxqpncrawoeyvbskbdtghbvxjdkclhxveontsevoszopahackvktyhqhmbjykhvoxijpofgjguyjbynntxjrezbqckqmtmcqumgltmubiskktxzouiiakjrmvhbptdfqrl...

output:

2

result:

ok single line: '2'

Test #37:

score: 0
Accepted
time: 2ms
memory: 3668kb

input:

euajjxjlrejaxbyvxobwfcuruietgnnmhoxrlheelpfktfgqvhpbllufuyacooqxcoqpvxvimatfhzydipgtaaawbaarorosfhjcefmshfapgyuonajpcjmdmmucflvmugoyldsvismrqgffirxkcjqoxmrfxortuirilmdvepmxxuefnbppmhgmuzrtnknjsgrfswbxnpwkjarwcjoqqucktveigtrazlgsjjrxanjkpdirmykcsmpnivvqopqnayhjjyiknswdvewjdgnxvcldzivnxldxkkjtlrfylbbi...

output:

3

result:

ok single line: '3'

Test #38:

score: 0
Accepted
time: 0ms
memory: 3664kb

input:

ryqikpuwkabqupuqkxvqocdyzphkqsxksnsccobpqcflrzddzzundzneowphpmrhclmgznvppcahegkffgskfhouedbvsueufqaefyvvayeeeojlxdvcnjyrpbohvubcndisbepeetiikuvhzqlmbkfqnvxjqaldguxhapneiyousjbtzpgcbltohsxzvlebhbkjsynbydvsmzlnqrprfkfoffnaqtdzwpippxsnanfmorzekqxrddfikukanpbmejbugthgipuzgvfsndkqirasmmubbvpigqcmlluuaqvi...

output:

3

result:

ok single line: '3'

Test #39:

score: 0
Accepted
time: 2ms
memory: 3648kb

input:

qfwcuvpxrmdracykkzznjqjuohtsztqpaotwkitdxyuzcvmnwlafdmztvsounemptfmfqhipgfoiaaxwoadtocnjwbgmhsbczpjrxugdzvnbvnzlncfdgumcxsoeksjmhsdemkjnfzocmnobrvexpqcmlsqxkbjuupyizkwgjkkvaawtvctksvwfppdaqowmduveermpdxkfxizvkuffpekgtpglgcyjztqfmcvrbhxzqywcsbjjfwpalymrckddftjrxgkznhafhwkbxtkfpcfdcrwedbiiwtbuzmvovvud...

output:

-1

result:

ok single line: '-1'

Test #40:

score: 0
Accepted
time: 4ms
memory: 3896kb

input:

qepycslklynhzkkruaucaztyrazoomsgqhevzrfmpuvpefiahffieyixajlovfuomylnsschmxytfhvmoawuyfryoeomkicyjnobfqktpjmusijgkfcjmtjdxyphirirgwunmfgdqvykdhsnouybnkemkvuuoemuaihopprfkrrpajfpddsspyfbtbwhfkdfsmtibmpmejbgsgvwmpqdnvfgwbpdluidgdnisfwwoxeigagsrxvfsanrdfuozfsikhqcomaelfnrhtlyqjdlltcpyyfzdzhohzqxntczypsf...

output:

3

result:

ok single line: '3'

Test #41:

score: 0
Accepted
time: 2ms
memory: 3912kb

input:

pjpylsynxoiagfroxaynqykxlarebqcqcuqpmocjemlnredrfbevzptnrmtuevngpdxcuznanznfdqwkucgttbilnbfrzuaoyxquzgumhktmcpxwudsngaytegmdaotammunsrbzbvldkkaepsuvusoayddbrxbfjysdpucqrpvdcxkrrenmwbmxgsyyrbfczyhoulglaeqcbautejhbkvatnargbwkdwrtscaffgwjhwfcbojebfguugndjlnokficjkkoqgazefchulnvstrnbesnrfbbmjgwtqmlymles...

output:

1

result:

ok single line: '1'

Test #42:

score: 0
Accepted
time: 4ms
memory: 3896kb

input:

bcqatarjdfzvabdynnqexqgutwlrxbtadjdyjujpzikbknbxcrezkkwdjhvgioinzlllhvagdmjncllecrembasmjnurddgeqrpymrgseqfgbskfjqunqmzzbwsgzykpqcpetwwzmchpwuwiksvbgwahstpttaljeaoxwmzkqgznayxlqsoxqogljwedwpoasezorabhhawjatwrnkogburmqxroniqhmsxfsypbznnzhjswwicxfvlvtdmilepzymfrlwumjhnqrgppqtmvpztiefqplhrktydguxsdhiwa...

output:

-1

result:

ok single line: '-1'

Test #43:

score: 0
Accepted
time: 4ms
memory: 3944kb

input:

vfitessxgeejhcxbbtxlnvvrhzfvngpkoxespwpxavgjafnbykolfjfnlkiatzkhwobnmqlpntynzlqxwgjdqosdacdtbncxedlqvyflreaqrrqpxbtprnsrqvnrlprpvefqclbvrcokveauhvkyiepacesnulcpphhtujonneyikaerxopfvfixjamflowcxevunljcqhmajqughjocqwbcynhldenaikwxxgbnpnqzdkhkvxomtrotexghbtklfikdolsgakhgwossmhehyudfrjovfygkjtpxgkfhumpt...

output:

2

result:

ok single line: '2'