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QOJ
ID | Problem | Submitter | Result | Time | Memory | Language | File size | Submit time | Judge time |
---|---|---|---|---|---|---|---|---|---|
#188975 | #6567. Repetitive String Invention | ucup-team870# | AC ✓ | 742ms | 27764kb | C++14 | 2.6kb | 2023-09-26 18:27:54 | 2023-09-26 18:27:54 |
Judging History
answer
#include <bits/stdc++.h>
#define rep(i,l,r) for(int i=l; i<=r; i++)
#define IOS {cin.tie(0);cout.tie(0);ios::sync_with_stdio(0);}
using namespace std;
typedef long long ll;
typedef pair<int,int> P;
char s[810];
int nxt[1010][1010];
ll ksj[1010][1010];
const int mod1 = 1e9+7, mod2=1e9+9;
unordered_map<ll, int> mp;
void cc(unordered_map<ll, int> a) {
unordered_map<ll, int> b;
swap(a, b);
}
int main() {
scanf("%s", s+1);
int n = strlen(s+1);
rep (k, 1, n) {
nxt[k][k] = k-1;
rep (i, k+1, n) {
int j = nxt[k][i-1];
while (j >= k && s[j+1] != s[i]) j = nxt[k][j];
if (s[j+1] == s[i]) j++;
nxt[k][i] = j;
}
}
for (int i = n; i >= 1; i--) {
ll hs1 = 0, hs2 = 0;
rep (j, i, n) {
hs1 = (hs1 * 131 + s[j] - 'a' + 1) % mod1;
hs2 = (hs2 * 19260817 + s[j] - 'a' + 1) % mod2;
ksj[i][j] = hs1 * 2000000000 + hs2;
}
}
ll ans = 0;
for (int i = n; i >= 1; i--) {
rep (j, i, n) {
mp[ksj[i][j]]++;
// cout << ksj[i][j] <<' '<<mp[ksj[i][j]]<<endl;
}
int r = i-1;
rep (l, 1, r) {
ans += mp[ksj[l][r]];
int t = nxt[l][r];
while (t >= l) {
int len = t - l + 1;
if (len * 2 < r-l+1) {
ans += mp[ksj[l+len][r-len]];
}
t = nxt[l][t];
}
}
}
reverse(s+1, s+n+1);
mp.clear();
cc(mp);
rep (k, 1, n) {
nxt[k][k] = k-1;
rep (i, k+1, n) {
int j = nxt[k][i-1];
while (j >= k && s[j+1] != s[i]) j = nxt[k][j];
if (s[j+1] == s[i]) j++;
nxt[k][i] = j;
}
}
for (int i = n; i >= 1; i--) {
ll hs1 = 0, hs2 = 0;
rep (j, i, n) {
hs1 = (hs1 * 131 + s[j] - 'a' + 1) % mod1;
hs2 = (hs2 * 19260817 + s[j] - 'a' + 1) % mod2;
ksj[i][j] = hs1 * 2000000000 + hs2;
}
}
// ll ans = 0;
for (int i = n; i >= 1; i--) {
rep (j, i, n) {
mp[ksj[i][j]]++;
// cout << ksj[i][j] <<' '<<mp[ksj[i][j]]<<endl;
}
int r = i-1;
rep (l, 1, r) {
// ans += mp[ksj[l][r]];
int t = nxt[l][r];
while (t >= l) {
int len = t - l + 1;
if (len * 2 < r-l+1) {
ans += mp[ksj[l+len][r-len]];
}
t = nxt[l][t];
}
}
}
cout << ans;
return 0;
}
Details
Tip: Click on the bar to expand more detailed information
Test #1:
score: 100
Accepted
time: 0ms
memory: 5560kb
input:
aaaa
output:
9
result:
ok single line: '9'
Test #2:
score: 0
Accepted
time: 1ms
memory: 5656kb
input:
axabxbcxcdxd
output:
22
result:
ok single line: '22'
Test #3:
score: 0
Accepted
time: 89ms
memory: 11352kb
input:
xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx...
output:
536006700
result:
ok single line: '536006700'
Test #4:
score: 0
Accepted
time: 43ms
memory: 12176kb
input:
abababababababababababababababababababababababababababababababababababababababababababababababababababababababababababababababababababababababababababababababababababababababababababababababababababababababababababababababababababababababababababababababababababababababababababababababababababababab...
output:
136016600
result:
ok single line: '136016600'
Test #5:
score: 0
Accepted
time: 1ms
memory: 5712kb
input:
a
output:
0
result:
ok single line: '0'
Test #6:
score: 0
Accepted
time: 0ms
memory: 5712kb
input:
ab
output:
0
result:
ok single line: '0'
Test #7:
score: 0
Accepted
time: 1ms
memory: 5548kb
input:
aa
output:
1
result:
ok single line: '1'
Test #8:
score: 0
Accepted
time: 21ms
memory: 13652kb
input:
bbbbbrrrrbrbrrbrbrbrbbrrbbbbrrbrrbrbrbrrrrrbbbrrbrrbbrrrbbbbbrrrrbbrbbrrrrrbbrrrbbbbbrbbrbbbrbrrbrrrrrrrrbbrbrbbrrrrrrbbbbbrbrrrrbrrbbrbrrrrrbrbrbbrbrrbrrrrbrbbrbrrbrrbbbbrrrrrbrbbrbbrrrrrbrbrbrbbbrrrrrrrbbbbbbrrbrbrrrrrbbbrbrrrrbbbbrrbrrbbbbbbbrbbbbrrrbrbbbrrrrrrbbbbbrbrrbbbbrbrbrrbbrrrbbbrbbbrbbrr...
output:
209015
result:
ok single line: '209015'
Test #9:
score: 0
Accepted
time: 21ms
memory: 15216kb
input:
fkrryithikkpurfezufbthxxrtejxpprhrhurrfziigzgajipayrefarpxuggehkiggeppfjghuyejuagkjpiezhmfizgphkkfffifihrimuhgtgzykfupbprjyrbpbimapjmbkrhubzhgfhhpkrxgjgmkheiiugiyerggyukyfuuxgrehgayafzuxymxxabygpapbjxipkxgbxhzpekypfghaumukguaipphiyhzimzfmpmzahbmaagytygyekzhktbbheetxrbipgytppgbhkpimrybkbeirhrzytfehba...
output:
5696
result:
ok single line: '5696'
Test #10:
score: 0
Accepted
time: 16ms
memory: 13512kb
input:
ayeaecauuueerrcsyyyuayauarecyrruueeucacrrcesercyeasuscucscruaaresaeruurreeursssuyraeysurecacueuacycacsyuyeyusssassaasyuarrcecueayacucuyyrsasrycyrrcececyuccecyreyeccuesaasceasussaraeruyarcauarcecacrucryryseysauaucyaeyurueurerrccrayyyycccsuaaesrecurucerrascyacucucryarycayeesyysusserarseyrauyrryeacauec...
output:
18249
result:
ok single line: '18249'
Test #11:
score: 0
Accepted
time: 16ms
memory: 13772kb
input:
lclccclcclllccccclcclclcccclllllcclcclclcclllllcllccclclclccclccllcclccccccllccclclcccclclcclclccclllllccclcccccclllllccllcclclllllllccclllcllllccccccccllccclllccclcllllllllcclccclccccllccllclclcclcllcllccclcllclllclclllclllcllcclclllccclcclclllclllllllcclllcccccllcllcllcclcclcllccclclllclclcccllcll...
output:
207835
result:
ok single line: '207835'
Test #12:
score: 0
Accepted
time: 14ms
memory: 11784kb
input:
lygxvkxeeiixzzpamosqadacrnyierrztikxheupgbkfkstyjrmyvhmjrhfhwfdeyhzuyhhbczbjgcnzouiufetegmnvxoeqxiykkwysdnnmdjtpwwzpdaqzmwmapbqbdjsdoxmpbvseyfrrqpgteehoxqsjszykfqgdmcgwikavcnhoubonianpecjtumdutpxwioqtkystzndrbtlfircdsnsxraoitswvhjirqxxjrnjjsldbmdcjngecdaotrgxvikyfyjlbbeketxrxeknuxmxehvabyyyxnrchukft...
output:
3442
result:
ok single line: '3442'
Test #13:
score: 0
Accepted
time: 20ms
memory: 14476kb
input:
yjjxyyxjxyjjyxyyjxyyjxjxjxjyxyxxjxjjyxxxxxjjxyxxyjjxxjyyjjjyyyxjyjxjxyjjyjxjyjyyxjyjyjyyxxyyxxxjjxxxyyyjjjyxjyxjxjyjxjyyyjjxxxjxxjxjjjyjxjyjyyxjyjyjyyxxyyxxxjjxxxyyyjjjyxjyxjxjyjxjyyyjjxxxjxxjxjyjjxyyxjxyjjyxyyjxyyjxjxjxjyxyxxjxjjyxxxxxjjxyxxyjjxxjyyjjjyyyxjyjxjxyjjxyyxjxyjjyxyyjxyyjxjxjxjyxyxxjxjjy...
output:
103111
result:
ok single line: '103111'
Test #14:
score: 0
Accepted
time: 14ms
memory: 13508kb
input:
lhllhlhlhllhlhllhhlhhhhllhhlhhhhllhhlhhhhllhllhhllhhlhhhhllhllhhhhhllhhlhhhhhlhllhlhhlhllhlhhhhllhllhhhllhhlhhhhhhlhllhlhllhhlhhhhhhlhllhlhhllhllllhllhhhlhllhlhhhllhhlhhhhhhllhhlhhhhlhllhlhllhllhhhhllhllllhllllhllllhlllhllhlhllhhlhhhhhhhllhlllhllhlhllhhlhhhhllhllllhlllhllhlhllhllhhhhhhhllhhlhhhhllhh...
output:
298186
result:
ok single line: '298186'
Test #15:
score: 0
Accepted
time: 16ms
memory: 13236kb
input:
blbllblbblbllblbblbllblblblbblllblbbllblbllblbblbllblbblbllblblblbbllblbllblblblbbllblbllblbblbllblblblbbllblbllblblblbbllblbllblbblbllblbblbllblblblbblllblbblllblbblllblbbllblbllblblblbblllblbblllblbbllblbllblblblbblllblbbllblbllblbblbllblbblbllblblblbblllblbblllblbbllblbllblblblbblllblbblllblbblll...
output:
510790
result:
ok single line: '510790'
Test #16:
score: 0
Accepted
time: 17ms
memory: 14216kb
input:
aqqaqaaqqaaqaqqaqaaqaqqaaqqaqaaqqaaqaqqaaqqaqaaqaqqaqaaqqaaqaqqaqaaqaqqaaqqaqaaqaqqaqaaqqaaqaqqaaqqaqaaqqaaqaqqaqaaqaqqaaqqaqaaqqaaqaqqaaqqaqaaqaqqaqaaqqaaqaqqaaqqaqaaqqaaqaqqaqaaqaqqaaqqaqaaqaqqaqaaqqaaqaqqaqaaqaqqaaqqaqaaqqaaqaqqaaqqaqaaqaqqaqaaqqaaqaqqaqaaqaqqaaqqaqaaqaqqaqaaqqaaqaqqaaqqaqaaqqaaq...
output:
584698
result:
ok single line: '584698'
Test #17:
score: 0
Accepted
time: 742ms
memory: 14660kb
input:
xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx...
output:
8554693400
result:
ok single line: '8554693400'
Test #18:
score: 0
Accepted
time: 380ms
memory: 15352kb
input:
abababababababababababababababababababababababababababababababababababababababababababababababababababababababababababababababababababababababababababababababababababababababababababababababababababababababababababababababababababababababababababababababababababababababababababababababababababababab...
output:
2154733200
result:
ok single line: '2154733200'
Test #19:
score: 0
Accepted
time: 102ms
memory: 26768kb
input:
abbbabbaaababbaabaaababaababbaabbbbbaaababbbbababbaabababaabbbaaabbababbababbabbbaabbabaaabaaabbbabbabbabaaaabbabbbababaabaabbaaaabbbbbbbababaabaababaaaaaabbbbbbbaaabaabaababbabaabababbbbabbabbaabbbaaababbbbabababababaabbbbbbbbbabbbbababaaabbbaababbbbaabbbbaabbaababbaaaababbabbabbabbabbaaaaaabbbbaab...
output:
930632
result:
ok single line: '930632'
Test #20:
score: 0
Accepted
time: 101ms
memory: 27212kb
input:
acbaabcbabcccccbbaaacaaacbacaabccbbccabbbaaacacbaccbaaaaaacbbcbabacaabaaabcbccbbccbaaabacacccacccbabcbbcaaabbaacaaabaabcaaccbacacbcbcacbbbbaacbbcccbbccabcacaaabcbbbbacbcbcaabbbccaabbcbacbcaccabbbcccccbcbbbabcabcacbccccacabccbccbccaaccbbbbbccbabbbcaabbaacaccacbcbaabbbbabbccbcacacbbcacbbccbacbbbcacccc...
output:
304687
result:
ok single line: '304687'
Test #21:
score: 0
Accepted
time: 93ms
memory: 27764kb
input:
gvqghqqtyruttomyqtjlimqxhhoiboxzggiduzwyaagmtvvogqwcfsgvnvzncgmhtpjtmnqekqyhzyvvnfofasxkcvrhlydmpfulmeugpayixcixaijfmkvhhbgikpyjlmvzrzbkhmtymjfkqzwafvimebzixveouiuwlkljnilpzdvrcygbtdsimysonrpolsunmdeqgatgudbkuihzgkqgucfczlhytrshtdhlvekmhnjllqfpkjwwujiifikmfvcpijojmnkjivvmbuweauqofpxnazdyisttwabrofjz...
output:
13605
result:
ok single line: '13605'
Test #22:
score: 0
Accepted
time: 101ms
memory: 15284kb
input:
abcdefghijklmnopqrstuvwxyzabcdefghijklmnopqrstuvwxyzabcdefghijklmnopqrstuvwxyzabcdefghijklmnopqrstuvwxyzabcdefghijklmnopqrstuvwxyzabcdefghijklmnopqrstuvwxyzabcdefghijklmnopqrstuvwxyzabcdefghijklmnopqrstuvwxyzabcdefghijklmnopqrstuvwxyzabcdefghijklmnopqrstuvwxyzabcdefghijklmnopqrstuvwxyzabcdefghijklmn...
output:
14989915
result:
ok single line: '14989915'
Test #23:
score: 0
Accepted
time: 92ms
memory: 24412kb
input:
aqqaqaaqqaaqaqqaqaaqaqqaaqqaqaaqqaaqaqqaaqqaqaaqaqqaqaaqqaaqaqqaqaaqaqqaaqqaqaaqaqqaqaaqqaaqaqqaaqqaqaaqqaaqaqqaqaaqaqqaaqqaqaaqqaaqaqqaaqqaqaaqaqqaqaaqqaaqaqqaaqqaqaaqqaaqaqqaqaaqaqqaaqqaqaaqaqqaqaaqqaaqaqqaqaaqaqqaaqqaqaaqqaaqaqqaaqqaqaaqaqqaqaaqqaaqaqqaqaaqaqqaaqqaqaaqaqqaqaaqqaaqaqqaaqqaqaaqqaaq...
output:
2798983
result:
ok single line: '2798983'