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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 |
---|---|---|---|---|---|---|---|---|---|
#629503 | #9406. Triangle | Grand_Elf | AC ✓ | 275ms | 100828kb | C++17 | 3.9kb | 2024-10-11 12:46:16 | 2024-10-11 12:46:18 |
Judging History
answer
#include <bits/stdc++.h>
using namespace std;
const int N = 3e5 + 5;
const int M = 6e5 + 5;
int T, n, m, p, top, sz[N], st[N], ed[N], ids[M], lst[M], stk[M], lim[M], cnta[M], cntb[M], a[M], sum[M];
int cnt[M], sa[M], id[M], rk[M], nrk[M], ht[M], lg[M], f[M][20];
vector<int> vec[N];
long long ans;
void SA() {
for (int i = 1; i <= n + 26; i++) {
cnt[i] = 0;
}
for (int i = 1; i <= m; i++) {
cnt[a[i]]++;
}
for (int i = 1; i <= n + 26; i++) {
cnt[i] += cnt[i - 1];
}
for (int i = 1; i <= m; i++) {
sa[cnt[a[i]]--] = i;
}
p = 0;
for (int i = 1; i <= m; i++) {
rk[sa[i]] = a[sa[i]] == a[sa[i - 1]] ? p : ++p;
}
for (int w = 1; ; w <<= 1) {
for (int i = 1; i <= p; i++) {
cnt[i] = 0;
}
for (int i = 1; i <= m; i++) {
cnt[rk[i]]++;
}
for (int i = 1; i <= p; i++) {
cnt[i] += cnt[i - 1];
}
p = 0;
for (int i = 0; i < w; i++) {
id[++p] = m - i;
}
for (int i = 1; i <= m; i++) {
if (sa[i] > w) {
id[++p] = sa[i] - w;
}
}
for (int i = p; i >= 1; i--) {
sa[cnt[rk[id[i]]]--] = id[i];
}
p = 0;
for (int i = 1; i <= m; i++) {
nrk[sa[i]] = rk[sa[i]] == rk[sa[i - 1]] && rk[sa[i] + w] == rk[sa[i - 1] + w] ? p : ++p;
}
for (int i = 1; i <= m; i++) {
rk[i] = nrk[i];
}
if (p == m) {
break;
}
}
for (int i = 1, k = 0; i <= m; i++) {
if (k) {
k--;
}
while (a[i + k] == a[sa[rk[i] - 1] + k]) {
k++;
}
ht[rk[i]] = k;
}
for (int i = 1; i <= m; i++) {
f[i][0] = ht[i];
}
for (int j = 1; 1 << j <= m; j++) {
for (int i = 1; i + (1 << j) - 1 <= m; i++) {
f[i][j] = min(f[i][j - 1], f[i + (1 << j - 1)][j - 1]);
}
}
}
int lcp(int i, int j) {
assert(i <= j);
int k = lg[j - i + 1];
return min(f[i][k], f[j - (1 << k) + 1][k]);
}
bool check(int i, int j) {
int k = lcp(i + 1, j);
return a[sa[i] + k] <= n;
}
int query(int l, int r) {
if (l > r) {
return 0;
}
return cntb[r] - cntb[l - 1];
}
void add(int x, int v) {
for (; x; x -= x & -x) {
sum[x] += v;
}
}
int exsum(int x) {
int res = 0;
for (; x <= m; x += x & -x) {
res += sum[x];
}
return res;
}
void work() {
cin >> n;
for (int i = 1; i <= m; i++) {
ids[i] = 0;
}
m = 0;
for (int i = 1; i <= n; i++) {
string str;
cin >> str;
sz[i] = str.size();
st[i] = m + 1;
ids[m + 1] = i;
for (char c : str) {
a[++m] = n + c - 'a' + 1;
}
ed[i] = m;
a[++m] = i;
}
SA();
lst[m] = m;
for (int i = m; i >= 2; i--) {
if (a[sa[i] + ht[i]] <= n) {
lst[i - 1] = lst[i];
} else {
lst[i - 1] = i - 1;
}
}
for (int i = 1; i <= m; i++) {
cntb[i] = cntb[i - 1] + (ids[sa[i]] > 0);
}
for (int i = 1; i <= m; i++) {
cnta[i] = 0;
}
ans = 0;
top = 0;
for (int t = 1; t <= m; t++) {
int i = ids[sa[t]];
if (i == 0) {
continue;
}
long long ans_ = ans;
while (top && !check(stk[top], t)) {
int j = ids[sa[stk[top--]]];
cnta[sz[j]]--;
}
stk[++top] = t;
for (int j = st[i]; j <= ed[i]; j++) {
int l = j - st[i] + 1;
lim[l] = 0;
if (rk[j + 1] < t) {
ans += 1ll * cnta[l] * query(lst[rk[j + 1]] + 1, t - 1);
lim[l] = lcp(rk[j + 1] + 1, t) + 1;
vec[lim[l]].emplace_back(l);
}
}
for (int j = st[i]; j <= ed[i]; j++) {
int l = j - st[i] + 1;
for (int k : vec[l]) {
add(k, cnta[k]);
}
if (rk[j + 1] < t) {
ans -= 1ll * cnta[l] * exsum(max(l + 1, lim[l]));
if (lim[l] <= l) {
ans -= 1ll * cnta[l] * (cnta[l] + 1) / 2;
}
}
}
for (int j = st[i]; j <= ed[i]; j++) {
int l = j - st[i] + 1;
for (int k : vec[l]) {
add(k, -cnta[k]);
}
vec[l].clear();
}
cnta[sz[i]]++;
}
cout << ans << '\n';
}
int main() {
ios::sync_with_stdio(0);
cin.tie(0);
for (int i = 2; i < M; i++) {
lg[i] = lg[i >> 1] + 1;
}
cin >> T;
while (T--) {
work();
}
return 0;
}
这程序好像有点Bug,我给组数据试试?
详细
Test #1:
score: 100
Accepted
time: 3ms
memory: 43140kb
input:
3 6 cbaa cb cb cbaa ba ba 3 sdcpc sd cpc 1 ccpc
output:
16 0 0
result:
ok 3 lines
Test #2:
score: 0
Accepted
time: 0ms
memory: 42512kb
input:
14 1 lfpbavjsm 2 pdtlkfwn mbd 3 dvqksg dvqksg uhbhpyhj 4 ombwb ombwb ombwb ombwb 5 oztclz oztclz oztclz oztclz kul 6 vco vco vco dtktsqtinm vco vco 7 tb tb kowbsu ygkfphcij tb uvei tb 8 vxxtxssht abnsxbf bydaae bydaae udalyvmcef bydaae bydaae bydaae 9 aaze zvyonw qjfv mmhkef qjfv qjfv qjfv mmhkef qj...
output:
0 0 0 4 10 20 10 20 41 14 63 74 18 11081
result:
ok 14 lines
Test #3:
score: 0
Accepted
time: 0ms
memory: 44104kb
input:
11 10 bppzfsncq bppzfsncq vcqxgcehdx bppzfsncq bppzfsncq muwrcvt w aanwhqmync aanwhqmync bppzfsncq 10 t jkky t z t t z z z t 10 qidkyca uhqubvbo kosyvh gsj gsj gsj duo jrro gsj jrro 10 lhktb lhktb lhktb uohl lhktb r lhktb lhktb wruim lhktb 10 e gqvdmpvxb gqvdmpvxb gqvdmpvxb sttirbhz gqvdmpvxb zdfpm ...
output:
30 60 15 35 20 20 23 12 38 44 8047
result:
ok 11 lines
Test #4:
score: 0
Accepted
time: 0ms
memory: 44376kb
input:
11 100 kalgqjh mdszzwe qxn kalgqjh hy kalgqjh suplvp r kkeoxmx tcoise suplvp suplvp y kalgqjh vrwniyici jmnyrradyq kalgqjh kalgqjh suplvp rkg xzevyk zc suplvp hcupv kalgqjh qakyahjaoi mum pbg u ip kalgqjh kalgqjh jngc ylr suplvp qxn kalgqjh bzwodm e kalgqjh kalgqjh evmm kbymvbccs kalgqjh suplvp kalg...
output:
12478 6722 9220 6668 4934 11233 7950 5470 4525 5743 1586066
result:
ok 11 lines
Test #5:
score: 0
Accepted
time: 5ms
memory: 44612kb
input:
2 1000 t lhijhkxzzx nhfiksblww h xg z dcbmbvyz ois ynwjgfp oqzv qtoinl gr teu kmza hs t mwhewk kjmuneon bekku qheweh szhagft fcwjp bobwnap y oqpole oqzv xeaiyhfeg rjkdidea wmeslege vyyi teomn yvmcnw vnvum tgnl swqqruuvc xxllevp bov dse e b rtbhogkx nzs e bs pppyndgrrv n tzbwqdusn e xeaiyhfeg i agnet...
output:
2430570 1904282
result:
ok 2 lines
Test #6:
score: 0
Accepted
time: 32ms
memory: 56428kb
input:
503 16 yh yh yhc yhc yhcowdfqlwfidnx yhc yhc yh yhcowdfqlwfidn yhcowdfqlwfidnx yh h yh yhcowdfqlwfidnx yhcowdfqlwfidnx yhc 19 nb nbg vpfkllgv nmzqfsuafqtayjjjcidpygz nb nb gutq n omyuvm fgxtfbhuglxyiumi nbghjuti nbg nb fgxt nbghjuti n nb nbg n 7 rtjiwfidoahckhvgoxvvrncqvgerqiuaruiftakvugsgnsw wllcan...
output:
531 485 6 12 4 118 6 3 1635 18 373 20 954 6208 45 12 1124 79 267 2 5778 22 13 1 1 16 630 0 7 16315 0 2155 2308 26 936 109 103 5 0 2492 7 2 114 144 11 158 0 0 101 455 0 12234 78 631 5402 94 66 84 161 4412 5 3 81 22 20 13 52 632 6 137 56 2 3 64521 122 330 0 0 7 0 113 249 8 301 335 1825 110 4 108 50 10...
result:
ok 503 lines
Test #7:
score: 0
Accepted
time: 30ms
memory: 51852kb
input:
503 23 rjyyivdg n n n n n n n nmr n nmrk nm rjyyivdguyiffnvunoxconw n n n o lixclcmwthwkrsi mqluhyypgfkmdvgpzju n nmrk rjy n 15 jotwxwhaqdxmazhslyouztprzlirisvwvduojb jot jotwxw j jotwx jotwx gohg j gdgneodagmdhvvapjh jotwxw xs vurk vurk j xs 7 xrczucnkbemaymvabkkwnn xrczucnkbemaymvabkkwnn xrczucnkb...
output:
855 58 35 0 1 56 2 112 1 8465 242 56 110 23 544 0 3 17 29 11 764 20 9 0 4 77 812 35 4 10 32 437 9 2364 3 2 11 2 421 50 4 107 1 62 1120 3 1 16 3970 1147 1026 8 4 85 9 31 61 16 205 2 2 84 238 1 1 51 4 0 16 61 331 4 16 7 0 7 148 10 13 2 1 37 1 67 0 296 1 0 644 32 2 10 0 5 126 3490 4 0 10 331 1216 7921 ...
result:
ok 503 lines
Test #8:
score: 0
Accepted
time: 32ms
memory: 53924kb
input:
503 5 ljtolmgjndlwoyjjttak mihjdhkyfnafwrpeuiuiurusvsnu ljtolmgjndlwoyjjttak mihjd ljtolmgjndlwoyjjttak 25 lhx lh lhx lh k lh kninp l lhx lhx izeqohkpfuovopebttqaufmmlivd lhx lhx qid lhx lh lhx lhx oklb l lhx lhx lhx lhx l 9 mxeonfwpujrilfigjoiyjkzdmi fezhyrcyqy mx fezh f dmvfbklnkxmnetib dmvfbkln m...
output:
4 1476 27 26 117970 2 105 30 4 737 4 2 19 48 34 434 6 78331 22 23 0 228 56 4 3 305 9 84 132 199 20 3 4057 0 0 20 35 34 48 4 266 14 17 4788 545 28989 0 10 535 84 1 1775 322 11 57 16 15 1331 5 0 10 5 183 8 2 237 10 0 60 20 42 7 10 297 14 210 6254 7 3 0 13 2744 119 47 0 1 68114 17 1 2 1 7 1 2 113 26 0 ...
result:
ok 503 lines
Test #9:
score: 0
Accepted
time: 33ms
memory: 53808kb
input:
503 11 wkeoqqqpvmgdv w w w wkeoqqqpvmgdv sgrwmsfwclpamgq wkeoqqqpvm qkmbyvcxjsh wkeoqqqpvm wke wkeoqqqpvmgdv 7 otd qelodfwrqeprgyvzbcjljx qe qelodfwrqeprgyvzbcjlj qelodfwrqeprgyvzbcjlj qelodfwrqeprgyvzbcjlj c 15 rce rce fwq fwqqfcjrhqot rceft jkdrcehfwhqkupe fwq r jkdr fwq rceft rce fwqqfcjrhqot fwq...
output:
156 17 213 12 20 1 374 4 0 26 26 3 122 30 4005 24 1385 50 84 44 0 112 42 36 19 887 99 5 9 13 2 5029 52 14 84 116 2 10 4 8 141 9287 822 37 5 13 25 1030 0 2 3 35 81 1 0 1 138 0 578 7 30 636 63 22 2118 863 5377 33 34 10 156 336 1 7 7 4 1793 2 124 13 4 2015 7 23 1 4516 3 17 6 35 13336 9 61 3093 0 1 7 22...
result:
ok 503 lines
Test #10:
score: 0
Accepted
time: 275ms
memory: 100828kb
input:
1003 3 mpfowyd mpfowydrivrkjiarwcxwbfqvnktlzcfolbbsgelvcnzeqy hytzojmfeiwtpquxhneeznbdjjlsptedaorwfsxi 3 nyfcq nyfcqgrmshiwmgcbukozvetdggebkkychamof nyfcqgrmshiwmgcbukozvetdggebkkychamofadozdympuejvhdnpi 8 yoeqyfcjsywowdrlzzybjvtycqvizzomc zci yoeqyfc zcinc yoeqyfcjsywowdrlzzybjvtycqvizzomc y zcinc ...
output:
0 1 26 10 66 403 1 265 1025 16 329 4 1219 1 10 70 30 182 60 5 71 1 20 5343 22328 40667 90 6983 66 10 35 20 250 307 913 98 44 5393 56 280 270 3 3 2229 77 17 774 50 5 21 0 208 8 14 185 35 20 11 465 132 176 10 0 10 1704 13 44 141 0 0 5 10 79 17 213 10 108 0 0 289 10 255 27 493 4 1 24 379 30 9 284 173 2...
result:
ok 1003 lines
Test #11:
score: 0
Accepted
time: 239ms
memory: 83548kb
input:
1003 6 exssl exsslhsuwyemcafatpinzvdeypwjqsnvxlkvmpywgx f exss exs exsslhsuwyemcafatpinzvdeypwjqsnvxlkvmpywgx 7 hzzev hzzevmltbehnvjfhsz hzzevmltbe hzzevmltbehnvjfhszqzobn hzzevmltbehnvjf hm hzzevmltbehnvjfhszqzobn 9 rdx rdxnxdfcyrdpgwzwtqgtu rdx rdxnxdfcyrdpgwzwtqgtu f kpotnxntufvd kpotnxntufvdlmij...
output:
3 19 41 134 107 2 372 0 466 456 20 13 25 339 64 170 1 5 27295 3 1 221 116 11 29 19 1006 16827 16 19863 4 6 5784 3 20 21130 66 1275 100 731 83 3 84 0 32 3 615 207 8 44 245 48 165 18050 128 11 864 21 3 1221 120 51 21 8 247 302 0 1098 0 57 42 20 0 845 1 84 16 4 0 2 836 482 4 12 150 654 1035 142 291 34 ...
result:
ok 1003 lines
Test #12:
score: 0
Accepted
time: 216ms
memory: 81324kb
input:
1003 10 lgbpleleme u u uxpwzhga uxpwzhg u uxpwzhgaadltqqpqkbteylath u uxpwzhgaadltqqpqkbteylath uxpwzhgaadltqqpq 9 aqoxfsmqwpafbocodlpdykesadqgiggw swzjus oim aqoxfsmq aqoxfsmqwpafboc swzju nohnsjbdhljarh swzjusx aqoxf 20 mbdiqaartewavbbwbhftzwxm k mbdiqaartewavbbwbhftzwxm kx kxs kxsqv kx kx kxsqv k...
output:
70 0 290 10 604 1770 2 913 1 165 16 316 4 169 26 3 36 2 1549 2 13 15 21 14 109 34 16 1889 132 1700 1 96 17 436 2 0 6183 4144 0 4 50 4 10 5 4 4 78 10 16 97 16 50204 15871 350 3 865 46 7 0 73 38 46 29 1946 65 22088 7 91 43 310 1806 0 50 4 17 38725 262 50 0 304 141 35 50 0 22760 2973 14 410 1112 20 703...
result:
ok 1003 lines
Test #13:
score: 0
Accepted
time: 229ms
memory: 83260kb
input:
1003 7 amhy ncfsepqjimkaxkvlsqw bgk ncfsepqjim n amhyderccfrcdclbgrhxospemrlwctcnogb ncfsepqjimkaxkvlsqwzxubaz 15 ul k cqm kuixi ovrwzbvkvkzfuqtxooevyvuayhupn o kuixi ulihj k k kzlmrtwddplvqvakmeda ku k kzlmrtwddplvqvakmeda k 15 mf dwhth cwkbrvykvcvqltdovbcy dwhth dwht dwhth cwkbrvykvcvqltdovbcy dwh...
output:
4 58 203 10 8614 17 20 0 0 4 43987 18 164 144 35 412 3 19 20 51 50 0 4 16 37 1 4 14 8 526 197 71 20 26 20 35 55 16 0 3667 274 2024 4 33 19492 435 1 2 10 10 22631 32 690 1 0 13 166 561 6 67 10 33 286 4 1 89 11 18 12266 26 23 280 286 16 400 102 0 10 46 40 1 84 27 14 5699 105 197 39 818 36 6 29491 4 17...
result:
ok 1003 lines
Test #14:
score: 0
Accepted
time: 239ms
memory: 81032kb
input:
1003 36 dv d dvgsku dv d d dv dv d d dv dvg dvgs dvgsku dv d d dv d d nwitakortf dv dv dvg d dvg dv d tksvgjqlfzdolvno d d dvg dv dv dvgsku dv 6 w oursusfeydeqnv wdrteonpibjzxvhzvqbytajwkgqwmucrzemrfowydhkkd wdrteonpibjzxvhzvqb wdrteo wdrteo 11 crmoyb c crmo wkyxgzsh cr flnsuvxkaqknoofhjdackgvavroh ...
output:
1840 19 9 370 7 31 892 504 6 56 150 209 41 0 255 221 1 7670 0 14 638 3 100 1365 17 3 20 16 74 20 15 496 3270 16 0 62 2 345 1 65 2277 0 1 39 0 0 1 2381 707 152 8485 289 109 2066 2803 38 197 1 46 38 44 323 14 1 10 98 2 116 38 82 0 56 2220 4 10 1879 29 241 65 17 7 10 6 8 162 20 9 2 10 4 4 0 4 76 50 194...
result:
ok 1003 lines
Test #15:
score: 0
Accepted
time: 220ms
memory: 79036kb
input:
1003 2 serwtujvdfqkirmfdetefaevwuuwqlkcmierfpxwzimcpmvdqvuwxwqtuq serwtujvdfqkirmfdetefaevwuuwqlkc 6 cnbkhujgexqrjtbcqwncpeiyj cnbkhujgexqrj cnbkhujgexqrj gisjwbxjohpnbvmtwvhhvb c cnbkhujgexqrjtbcqwncpeiyj 21 k k k kpqon k aesamtzjajczokh kpqonwvoiy kpqonwv kpqonwv sbl kpqonwvoiy k tdyvo tdyvo kpqon...
output:
0 4 199 4 199 16 650 1 506 9 0 12 81 4 1587 10 22 0 12383 436 29 152 61990 3 40 4 10 26 1 17 4 102 22 41 32 244 3 6486 1470 2 1425 22 5 2 321 5 70724 1023 7 41 15 7 10 5 11 0 186 34 7 7 4 5 0 1184 23 115 10 124 48 0 19104 969 1179 9 7 1 23042 809 100 86 18 4 1 27 77 84 0 30 1 0 6023 418 10 1 15 52 0...
result:
ok 1003 lines
Test #16:
score: 0
Accepted
time: 139ms
memory: 74940kb
input:
4 10000 aacbfedgih aachgdeibf aacbfedhgi aabciedghf aacbgeihfd aacdgbhefi aacgfeihdb aabgfehidc aabfgehdci aabhdceigf aacdebihfg aabdgeihcf aabgdcihfe aaceibdgfh aacdgehbif aabfdicehg aabhdfegic aacfibgdeh aacdfghieb aabgdifhec aabgdfhice aachedbgif aabdecgihf aabdchefig aacfgbeihd aabdgfihce aabehd...
output:
0 0 0 0
result:
ok 4 lines
Test #17:
score: 0
Accepted
time: 222ms
memory: 74972kb
input:
4 317 aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa...
output:
2600268 13538368 13577242 13530312
result:
ok 4 lines
Extra Test:
score: 0
Extra Test Passed