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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 |
---|---|---|---|---|---|---|---|---|---|
#134513 | #6567. Repetitive String Invention | Noobie_99# | ML | 1713ms | 901432kb | C++20 | 1.7kb | 2023-08-03 21:28:04 | 2023-08-03 21:28:06 |
Judging History
answer
#include <bits/stdc++.h>
using namespace std;
#define tsolve int t; cin >> t; while(t--) solve
#define debug(x) cerr << __LINE__ << ": "#x" = " << (x) << endl
#define nl '\n'
#define all(x) ::begin(x), ::end(x)
#define sz(x) (int)::size(x)
using ll = long long;
using ld = long double;
using ull = uint64_t;
struct Hash {
static constexpr ll M = 3.1e18L + 7;
static constexpr ll Q = 19283928934LL;
vector<ll> pref = {0};
vector<ll> power = {1};
string s;
Hash(const string& s2) {
s = s2;
for (auto c : s) pref.push_back((mul(pref.back(), Q) + c) % M);
while (ssize(power) <= ssize(s)) power.push_back(mul(power.back(), Q));
}
ll operator()(int l, int r) {
return (pref[r] - mul(power[r-l], pref[l]) + M) % M;
}
static ll mul(ull a, ull b) {
ll ans = (a * b - M * ull(1.L / M * a * b));
return ans + M * ((ans < 0) - (ans >= M));
}
};
void solve() {
string s;
cin >> s;
int n = ssize(s);
vector<unordered_map<ll, int>> pref(n+1), suf(n+1);
Hash h(s);
for (int i=0; i<n; i++) {
pref[i+1] = pref[i];
for (int j=0; j<=i; j++) pref[i+1][h(j, i+1)]++;
}
for (int i=n-1; i>=0; i--) {
suf[i] = suf[i+1];
for (int j=i; j<n; j++) suf[i][h(i, j+1)]++;
}
ll ans = 0;
for (int i=0; i<n; i++) {
for (int j=i; j<n; j++) {
for (int k=1; k<(j-i)+1; k++) {
if ((j-i+1+k) % 2 != 1) continue;
int half = (j-i+1+k) / 2;
int use = (j-i+1) - half;
if (h(i, i+use) == h(i+half, i+half+use)) {
ll idk = h(i+use, i+half);
ans += pref[i][idk];
ans += suf[j+1][idk];
}
}
ans += suf[j+1][h(i, j+1)];
}
}
cout << ans << '\n';
}
int main() {
cin.tie(0)->sync_with_stdio(false);
cout << setprecision(16);
solve();
}
详细
Test #1:
score: 100
Accepted
time: 1ms
memory: 3532kb
input:
aaaa
output:
9
result:
ok single line: '9'
Test #2:
score: 0
Accepted
time: 0ms
memory: 3508kb
input:
axabxbcxcdxd
output:
22
result:
ok single line: '22'
Test #3:
score: 0
Accepted
time: 218ms
memory: 13980kb
input:
xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx...
output:
536006700
result:
ok single line: '536006700'
Test #4:
score: 0
Accepted
time: 194ms
memory: 21452kb
input:
abababababababababababababababababababababababababababababababababababababababababababababababababababababababababababababababababababababababababababababababababababababababababababababababababababababababababababababababababababababababababababababababababababababababababababababababababababababab...
output:
136016600
result:
ok single line: '136016600'
Test #5:
score: 0
Accepted
time: 1ms
memory: 3468kb
input:
a
output:
0
result:
ok single line: '0'
Test #6:
score: 0
Accepted
time: 1ms
memory: 3460kb
input:
ab
output:
0
result:
ok single line: '0'
Test #7:
score: 0
Accepted
time: 0ms
memory: 3544kb
input:
aa
output:
1
result:
ok single line: '1'
Test #8:
score: 0
Accepted
time: 840ms
memory: 804144kb
input:
bbbbbrrrrbrbrrbrbrbrbbrrbbbbrrbrrbrbrbrrrrrbbbrrbrrbbrrrbbbbbrrrrbbrbbrrrrrbbrrrbbbbbrbbrbbbrbrrbrrrrrrrrbbrbrbbrrrrrrbbbbbrbrrrrbrrbbrbrrrrrbrbrbbrbrrbrrrrbrbbrbrrbrrbbbbrrrrrbrbbrbbrrrrrbrbrbrbbbrrrrrrrbbbbbbrrbrbrrrrrbbbrbrrrrbbbbrrbrrbbbbbbbrbbbbrrrbrbbbrrrrrrbbbbbrbrrbbbbrbrbrrbbrrrbbbrbbbrbbrr...
output:
209015
result:
ok single line: '209015'
Test #9:
score: 0
Accepted
time: 817ms
memory: 850096kb
input:
fkrryithikkpurfezufbthxxrtejxpprhrhurrfziigzgajipayrefarpxuggehkiggeppfjghuyejuagkjpiezhmfizgphkkfffifihrimuhgtgzykfupbprjyrbpbimapjmbkrhubzhgfhhpkrxgjgmkheiiugiyerggyukyfuuxgrehgayafzuxymxxabygpapbjxipkxgbxhzpekypfghaumukguaipphiyhzimzfmpmzahbmaagytygyekzhktbbheetxrbipgytppgbhkpimrybkbeirhrzytfehba...
output:
5696
result:
ok single line: '5696'
Test #10:
score: 0
Accepted
time: 860ms
memory: 901432kb
input:
ayeaecauuueerrcsyyyuayauarecyrruueeucacrrcesercyeasuscucscruaaresaeruurreeursssuyraeysurecacueuacycacsyuyeyusssassaasyuarrcecueayacucuyyrsasrycyrrcececyuccecyreyeccuesaasceasussaraeruyarcauarcecacrucryryseysauaucyaeyurueurerrccrayyyycccsuaaesrecurucerrascyacucucryarycayeesyysusserarseyrauyrryeacauec...
output:
18249
result:
ok single line: '18249'
Test #11:
score: 0
Accepted
time: 816ms
memory: 781864kb
input:
lclccclcclllccccclcclclcccclllllcclcclclcclllllcllccclclclccclccllcclccccccllccclclcccclclcclclccclllllccclcccccclllllccllcclclllllllccclllcllllccccccccllccclllccclcllllllllcclccclccccllccllclclcclcllcllccclcllclllclclllclllcllcclclllccclcclclllclllllllcclllcccccllcllcllcclcclcllccclclllclclcccllcll...
output:
207835
result:
ok single line: '207835'
Test #12:
score: 0
Accepted
time: 905ms
memory: 900860kb
input:
lygxvkxeeiixzzpamosqadacrnyierrztikxheupgbkfkstyjrmyvhmjrhfhwfdeyhzuyhhbczbjgcnzouiufetegmnvxoeqxiykkwysdnnmdjtpwwzpdaqzmwmapbqbdjsdoxmpbvseyfrrqpgteehoxqsjszykfqgdmcgwikavcnhoubonianpecjtumdutpxwioqtkystzndrbtlfircdsnsxraoitswvhjirqxxjrnjjsldbmdcjngecdaotrgxvikyfyjlbbeketxrxeknuxmxehvabyyyxnrchukft...
output:
3442
result:
ok single line: '3442'
Test #13:
score: 0
Accepted
time: 800ms
memory: 819596kb
input:
yjjxyyxjxyjjyxyyjxyyjxjxjxjyxyxxjxjjyxxxxxjjxyxxyjjxxjyyjjjyyyxjyjxjxyjjyjxjyjyyxjyjyjyyxxyyxxxjjxxxyyyjjjyxjyxjxjyjxjyyyjjxxxjxxjxjjjyjxjyjyyxjyjyjyyxxyyxxxjjxxxyyyjjjyxjyxjxjyjxjyyyjjxxxjxxjxjyjjxyyxjxyjjyxyyjxyyjxjxjxjyxyxxjxjjyxxxxxjjxyxxyjjxxjyyjjjyyyxjyjxjxyjjxyyxjxyjjyxyyjxyyjxjxjxjyxyxxjxjjy...
output:
103111
result:
ok single line: '103111'
Test #14:
score: 0
Accepted
time: 831ms
memory: 859344kb
input:
lhllhlhlhllhlhllhhlhhhhllhhlhhhhllhhlhhhhllhllhhllhhlhhhhllhllhhhhhllhhlhhhhhlhllhlhhlhllhlhhhhllhllhhhllhhlhhhhhhlhllhlhllhhlhhhhhhlhllhlhhllhllllhllhhhlhllhlhhhllhhlhhhhhhllhhlhhhhlhllhlhllhllhhhhllhllllhllllhllllhlllhllhlhllhhlhhhhhhhllhlllhllhlhllhhlhhhhllhllllhlllhllhlhllhllhhhhhhhllhhlhhhhllhh...
output:
298186
result:
ok single line: '298186'
Test #15:
score: 0
Accepted
time: 783ms
memory: 772700kb
input:
blbllblbblbllblbblbllblblblbblllblbbllblbllblbblbllblbblbllblblblbbllblbllblblblbbllblbllblbblbllblblblbbllblbllblblblbbllblbllblbblbllblbblbllblblblbblllblbblllblbblllblbbllblbllblblblbblllblbblllblbbllblbllblblblbblllblbbllblbllblbblbllblbblbllblblblbblllblbblllblbbllblbllblblblbblllblbblllblbblll...
output:
510790
result:
ok single line: '510790'
Test #16:
score: 0
Accepted
time: 713ms
memory: 691020kb
input:
aqqaqaaqqaaqaqqaqaaqaqqaaqqaqaaqqaaqaqqaaqqaqaaqaqqaqaaqqaaqaqqaqaaqaqqaaqqaqaaqaqqaqaaqqaaqaqqaaqqaqaaqqaaqaqqaqaaqaqqaaqqaqaaqqaaqaqqaaqqaqaaqaqqaqaaqqaaqaqqaaqqaqaaqqaaqaqqaqaaqaqqaaqqaqaaqaqqaqaaqqaaqaqqaqaaqaqqaaqqaqaaqqaaqaqqaaqqaqaaqaqqaqaaqqaaqaqqaqaaqaqqaaqqaqaaqaqqaqaaqqaaqaqqaaqqaqaaqqaaq...
output:
584698
result:
ok single line: '584698'
Test #17:
score: 0
Accepted
time: 1662ms
memory: 44736kb
input:
xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx...
output:
8554693400
result:
ok single line: '8554693400'
Test #18:
score: 0
Accepted
time: 1713ms
memory: 75860kb
input:
abababababababababababababababababababababababababababababababababababababababababababababababababababababababababababababababababababababababababababababababababababababababababababababababababababababababababababababababababababababababababababababababababababababababababababababababababababababab...
output:
2154733200
result:
ok single line: '2154733200'
Test #19:
score: -100
Memory Limit Exceeded
input:
abbbabbaaababbaabaaababaababbaabbbbbaaababbbbababbaabababaabbbaaabbababbababbabbbaabbabaaabaaabbbabbabbabaaaabbabbbababaabaabbaaaabbbbbbbababaabaababaaaaaabbbbbbbaaabaabaababbabaabababbbbabbabbaabbbaaababbbbabababababaabbbbbbbbbabbbbababaaabbbaababbbbaabbbbaabbaababbaaaababbabbabbabbabbaaaaaabbbbaab...