QOJ.ac

QOJ

IDProblemSubmitterResultTimeMemoryLanguageFile sizeSubmit timeJudge time
#706843#6567. Repetitive String Inventionucup-team902#AC ✓151ms8992kbC++171.9kb2024-11-03 13:39:332024-11-03 13:39:34

Judging History

你现在查看的是最新测评结果

  • [2024-11-03 13:39:34]
  • 评测
  • 测评结果:AC
  • 用时:151ms
  • 内存:8992kb
  • [2024-11-03 13:39:33]
  • 提交

answer

#include<bits/stdc++.h>
using namespace std;
using ll=long long;
const int N=800;
const ll g=27,mod=(ll)(1e18)+3;
int n;
char s[N+5];
ll hv[N+5][N+5];
unordered_map<ll,int> cnt;
ll ans,ans1;
int main(){
    scanf("%s",s+1);
    n=strlen(s+1);
    for(int i=1;i<=n;i++)
        for(int j=i;j<=n&&j-i+1<=n/2;j++)
            hv[i][j]=(1ll*hv[i][j-1]*g+s[j]-'a'+1)%mod;
    for(int l=0;l<n/2;l++){
        cnt.clear();
        for(int i=1;i+l<=n;i++)
            cnt[hv[i][i+l]]++;
        for(int i=1;i+l<=n;i++){
            int j=i+l; ll val=hv[i][j];
            int cc=cnt[val];
            for(int k=max(1,i-l);k<=min(j,n-l);k++)
                if(hv[k][k+l]==val) cc--;
            ans1+=cc;
            for(int d=1;d<min(i,n-j+1);d++){
                if(i-d>l&&hv[i-d-l][i-d]==val) cc--;
                if(j+d<=n-l&&hv[j+d][j+d+l]==val) cc--;
                if(hv[i-d][i-1]==hv[j+1][j+d]){
                    ans+=cc;
                    // printf("%d %d %d %d\n",i-d,j+d,d,cc);
                }
            }
        }
    }
    // printf("%lld\n",ans1);
    printf("%lld\n",ans+ans1/2);
    // for(int d=1;d<=n/2;d++){
    //     for(int i=1;i<=d;i++)
    //         cnt[i].clear();
    //     cnt.clear();
    //     for(int j=n;j>=d;j--){
    //         for(int i=j-d+1;i&&j-i+1<2*d;i--)
    //             if(hv[i][j-d]==hv[i+d][j])
    //                 ans+=cnt[hv[j-d+1][i+d-1]];
    //         for(int i=j;i<=n&&i-j+1<=d;i++)
    //             cnt[hv[j][i]]++;
    //     }
    //     cnt.clear();
    //     for(int i=1;i<=n;i++){
    //         for(int j=i+d;j<=n&&j-i+1<2*d;j++){
    //             if(hv[i][j-d]==hv[i+d][j])
    //                 ans+=cnt[hv[j-d+1][i+d-1]];
    //         }
    //         for(int j=i;j&&i-j+1<=d;j--)
    //             cnt[hv[j][i]]++;
    //     }
    // }
    // printf("%lld\n",ans);
    return 0;
}

Details

Tip: Click on the bar to expand more detailed information

Test #1:

score: 100
Accepted
time: 0ms
memory: 4036kb

input:

aaaa

output:

9

result:

ok single line: '9'

Test #2:

score: 0
Accepted
time: 0ms
memory: 4068kb

input:

axabxbcxcdxd

output:

22

result:

ok single line: '22'

Test #3:

score: 0
Accepted
time: 18ms
memory: 5864kb

input:

xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx...

output:

536006700

result:

ok single line: '536006700'

Test #4:

score: 0
Accepted
time: 14ms
memory: 6684kb

input:

abababababababababababababababababababababababababababababababababababababababababababababababababababababababababababababababababababababababababababababababababababababababababababababababababababababababababababababababababababababababababababababababababababababababababababababababababababababab...

output:

136016600

result:

ok single line: '136016600'

Test #5:

score: 0
Accepted
time: 0ms
memory: 3788kb

input:

a

output:

0

result:

ok single line: '0'

Test #6:

score: 0
Accepted
time: 0ms
memory: 3808kb

input:

ab

output:

0

result:

ok single line: '0'

Test #7:

score: 0
Accepted
time: 0ms
memory: 4000kb

input:

aa

output:

1

result:

ok single line: '1'

Test #8:

score: 0
Accepted
time: 15ms
memory: 5796kb

input:

bbbbbrrrrbrbrrbrbrbrbbrrbbbbrrbrrbrbrbrrrrrbbbrrbrrbbrrrbbbbbrrrrbbrbbrrrrrbbrrrbbbbbrbbrbbbrbrrbrrrrrrrrbbrbrbbrrrrrrbbbbbrbrrrrbrrbbrbrrrrrbrbrbbrbrrbrrrrbrbbrbrrbrrbbbbrrrrrbrbbrbbrrrrrbrbrbrbbbrrrrrrrbbbbbbrrbrbrrrrrbbbrbrrrrbbbbrrbrrbbbbbbbrbbbbrrrbrbbbrrrrrrbbbbbrbrrbbbbrbrbrrbbrrrbbbrbbbrbbrr...

output:

209015

result:

ok single line: '209015'

Test #9:

score: 0
Accepted
time: 17ms
memory: 6020kb

input:

fkrryithikkpurfezufbthxxrtejxpprhrhurrfziigzgajipayrefarpxuggehkiggeppfjghuyejuagkjpiezhmfizgphkkfffifihrimuhgtgzykfupbprjyrbpbimapjmbkrhubzhgfhhpkrxgjgmkheiiugiyerggyukyfuuxgrehgayafzuxymxxabygpapbjxipkxgbxhzpekypfghaumukguaipphiyhzimzfmpmzahbmaagytygyekzhktbbheetxrbipgytppgbhkpimrybkbeirhrzytfehba...

output:

5696

result:

ok single line: '5696'

Test #10:

score: 0
Accepted
time: 19ms
memory: 7920kb

input:

ayeaecauuueerrcsyyyuayauarecyrruueeucacrrcesercyeasuscucscruaaresaeruurreeursssuyraeysurecacueuacycacsyuyeyusssassaasyuarrcecueayacucuyyrsasrycyrrcececyuccecyreyeccuesaasceasussaraeruyarcauarcecacrucryryseysauaucyaeyurueurerrccrayyyycccsuaaesrecurucerrascyacucucryarycayeesyysusserarseyrauyrryeacauec...

output:

18249

result:

ok single line: '18249'

Test #11:

score: 0
Accepted
time: 18ms
memory: 5712kb

input:

lclccclcclllccccclcclclcccclllllcclcclclcclllllcllccclclclccclccllcclccccccllccclclcccclclcclclccclllllccclcccccclllllccllcclclllllllccclllcllllccccccccllccclllccclcllllllllcclccclccccllccllclclcclcllcllccclcllclllclclllclllcllcclclllccclcclclllclllllllcclllcccccllcllcllcclcclcllccclclllclclcccllcll...

output:

207835

result:

ok single line: '207835'

Test #12:

score: 0
Accepted
time: 18ms
memory: 5852kb

input:

lygxvkxeeiixzzpamosqadacrnyierrztikxheupgbkfkstyjrmyvhmjrhfhwfdeyhzuyhhbczbjgcnzouiufetegmnvxoeqxiykkwysdnnmdjtpwwzpdaqzmwmapbqbdjsdoxmpbvseyfrrqpgteehoxqsjszykfqgdmcgwikavcnhoubonianpecjtumdutpxwioqtkystzndrbtlfircdsnsxraoitswvhjirqxxjrnjjsldbmdcjngecdaotrgxvikyfyjlbbeketxrxeknuxmxehvabyyyxnrchukft...

output:

3442

result:

ok single line: '3442'

Test #13:

score: 0
Accepted
time: 15ms
memory: 5880kb

input:

yjjxyyxjxyjjyxyyjxyyjxjxjxjyxyxxjxjjyxxxxxjjxyxxyjjxxjyyjjjyyyxjyjxjxyjjyjxjyjyyxjyjyjyyxxyyxxxjjxxxyyyjjjyxjyxjxjyjxjyyyjjxxxjxxjxjjjyjxjyjyyxjyjyjyyxxyyxxxjjxxxyyyjjjyxjyxjxjyjxjyyyjjxxxjxxjxjyjjxyyxjxyjjyxyyjxyyjxjxjxjyxyxxjxjjyxxxxxjjxyxxyjjxxjyyjjjyyyxjyjxjxyjjxyyxjxyjjyxyyjxyyjxjxjxjyxyxxjxjjy...

output:

103111

result:

ok single line: '103111'

Test #14:

score: 0
Accepted
time: 20ms
memory: 6104kb

input:

lhllhlhlhllhlhllhhlhhhhllhhlhhhhllhhlhhhhllhllhhllhhlhhhhllhllhhhhhllhhlhhhhhlhllhlhhlhllhlhhhhllhllhhhllhhlhhhhhhlhllhlhllhhlhhhhhhlhllhlhhllhllllhllhhhlhllhlhhhllhhlhhhhhhllhhlhhhhlhllhlhllhllhhhhllhllllhllllhllllhlllhllhlhllhhlhhhhhhhllhlllhllhlhllhhlhhhhllhllllhlllhllhlhllhllhhhhhhhllhhlhhhhllhh...

output:

298186

result:

ok single line: '298186'

Test #15:

score: 0
Accepted
time: 20ms
memory: 5844kb

input:

blbllblbblbllblbblbllblblblbblllblbbllblbllblbblbllblbblbllblblblbbllblbllblblblbbllblbllblbblbllblblblbbllblbllblblblbbllblbllblbblbllblbblbllblblblbblllblbblllblbblllblbbllblbllblblblbblllblbblllblbbllblbllblblblbblllblbbllblbllblbblbllblbblbllblblblbblllblbblllblbbllblbllblblblbblllblbblllblbblll...

output:

510790

result:

ok single line: '510790'

Test #16:

score: 0
Accepted
time: 16ms
memory: 5932kb

input:

aqqaqaaqqaaqaqqaqaaqaqqaaqqaqaaqqaaqaqqaaqqaqaaqaqqaqaaqqaaqaqqaqaaqaqqaaqqaqaaqaqqaqaaqqaaqaqqaaqqaqaaqqaaqaqqaqaaqaqqaaqqaqaaqqaaqaqqaaqqaqaaqaqqaqaaqqaaqaqqaaqqaqaaqqaaqaqqaqaaqaqqaaqqaqaaqaqqaqaaqqaaqaqqaqaaqaqqaaqqaqaaqqaaqaqqaaqqaqaaqaqqaqaaqqaaqaqqaqaaqaqqaaqqaqaaqaqqaqaaqqaaqaqqaaqqaqaaqqaaq...

output:

584698

result:

ok single line: '584698'

Test #17:

score: 0
Accepted
time: 140ms
memory: 8464kb

input:

xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx...

output:

8554693400

result:

ok single line: '8554693400'

Test #18:

score: 0
Accepted
time: 118ms
memory: 8960kb

input:

abababababababababababababababababababababababababababababababababababababababababababababababababababababababababababababababababababababababababababababababababababababababababababababababababababababababababababababababababababababababababababababababababababababababababababababababababababababab...

output:

2154733200

result:

ok single line: '2154733200'

Test #19:

score: 0
Accepted
time: 148ms
memory: 8496kb

input:

abbbabbaaababbaabaaababaababbaabbbbbaaababbbbababbaabababaabbbaaabbababbababbabbbaabbabaaabaaabbbabbabbabaaaabbabbbababaabaabbaaaabbbbbbbababaabaababaaaaaabbbbbbbaaabaabaababbabaabababbbbabbabbaabbbaaababbbbabababababaabbbbbbbbbabbbbababaaabbbaababbbbaabbbbaabbaababbaaaababbabbabbabbabbaaaaaabbbbaab...

output:

930632

result:

ok single line: '930632'

Test #20:

score: 0
Accepted
time: 140ms
memory: 8992kb

input:

acbaabcbabcccccbbaaacaaacbacaabccbbccabbbaaacacbaccbaaaaaacbbcbabacaabaaabcbccbbccbaaabacacccacccbabcbbcaaabbaacaaabaabcaaccbacacbcbcacbbbbaacbbcccbbccabcacaaabcbbbbacbcbcaabbbccaabbcbacbcaccabbbcccccbcbbbabcabcacbccccacabccbccbccaaccbbbbbccbabbbcaabbaacaccacbcbaabbbbabbccbcacacbbcacbbccbacbbbcacccc...

output:

304687

result:

ok single line: '304687'

Test #21:

score: 0
Accepted
time: 141ms
memory: 8756kb

input:

gvqghqqtyruttomyqtjlimqxhhoiboxzggiduzwyaagmtvvogqwcfsgvnvzncgmhtpjtmnqekqyhzyvvnfofasxkcvrhlydmpfulmeugpayixcixaijfmkvhhbgikpyjlmvzrzbkhmtymjfkqzwafvimebzixveouiuwlkljnilpzdvrcygbtdsimysonrpolsunmdeqgatgudbkuihzgkqgucfczlhytrshtdhlvekmhnjllqfpkjwwujiifikmfvcpijojmnkjivvmbuweauqofpxnazdyisttwabrofjz...

output:

13605

result:

ok single line: '13605'

Test #22:

score: 0
Accepted
time: 133ms
memory: 8900kb

input:

abcdefghijklmnopqrstuvwxyzabcdefghijklmnopqrstuvwxyzabcdefghijklmnopqrstuvwxyzabcdefghijklmnopqrstuvwxyzabcdefghijklmnopqrstuvwxyzabcdefghijklmnopqrstuvwxyzabcdefghijklmnopqrstuvwxyzabcdefghijklmnopqrstuvwxyzabcdefghijklmnopqrstuvwxyzabcdefghijklmnopqrstuvwxyzabcdefghijklmnopqrstuvwxyzabcdefghijklmn...

output:

14989915

result:

ok single line: '14989915'

Test #23:

score: 0
Accepted
time: 151ms
memory: 8492kb

input:

aqqaqaaqqaaqaqqaqaaqaqqaaqqaqaaqqaaqaqqaaqqaqaaqaqqaqaaqqaaqaqqaqaaqaqqaaqqaqaaqaqqaqaaqqaaqaqqaaqqaqaaqqaaqaqqaqaaqaqqaaqqaqaaqqaaqaqqaaqqaqaaqaqqaqaaqqaaqaqqaaqqaqaaqqaaqaqqaqaaqaqqaaqqaqaaqaqqaqaaqqaaqaqqaqaaqaqqaaqqaqaaqqaaqaqqaaqqaqaaqaqqaqaaqqaaqaqqaqaaqaqqaaqqaqaaqaqqaqaaqqaaqaqqaaqqaqaaqqaaq...

output:

2798983

result:

ok single line: '2798983'