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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
#67550#3293. 优秀的拆分alpha1022100 ✓115ms8304kbC++233.2kb2022-12-10 17:12:292022-12-10 17:12:30

Judging History

你现在查看的是最新测评结果

  • [2023-08-10 23:21:45]
  • System Update: QOJ starts to keep a history of the judgings of all the submissions.
  • [2022-12-10 17:12:30]
  • 评测
  • 测评结果:100
  • 用时:115ms
  • 内存:8304kb
  • [2022-12-10 17:12:29]
  • 提交

answer

#include <cstdio>
#include <cstring>
#include <algorithm>
using namespace std;
const int N = 3e4;
const int LG = 15;
int T,n;
int lg2[N + 5];
int a[N + 5],b[N + 5];
long long ans;
struct SuffixArray
{
    int n,m;
    char a[N + 5];
    int sa[N + 5],rk[N * 2 + 5],tpr[N * 2 + 5],c[N + 5],height[N + 5];
    int st[N + 5][LG + 5];
    void build()
    {
        memset(sa,0,sizeof sa);
        memset(rk,0,sizeof rk);
        memset(tpr,0,sizeof tpr);
        n = strlen(a + 1),m = 127;
        memset(c,0,sizeof c);
        for(register int i = 1;i <= n;++i)
            ++c[rk[i] = a[i]];
        for(register int i = 1;i <= m;++i)
            c[i] += c[i - 1];
        for(register int i = n;i;--i)
            sa[c[rk[i]]--] = i;
        for(register int w = 1,p = 0;p < n;w <<= 1,m = p)
        {
            p = 0;
            for(register int i = 1;i <= w;++i)
                tpr[++p] = n - w + i;
            for(register int i = 1;i <= n;++i)
                if(sa[i] > w)
                    tpr[++p] = sa[i] - w;
            memset(c,0,sizeof c);
            for(register int i = 1;i <= n;++i)
                ++c[rk[i]];
            for(register int i = 1;i <= m;++i)
                c[i] += c[i - 1];
            for(register int i = n;i;--i)
                sa[c[rk[tpr[i]]]--] = tpr[i];
            swap(rk,tpr),rk[sa[1]] = p = 1;
            for(register int i = 2;i <= n;++i)
                rk[sa[i]] = tpr[sa[i]] == tpr[sa[i - 1]] && tpr[sa[i] + w] == tpr[sa[i - 1] + w] ? p : ++p;
        }
        for(register int i = 1,k = 0;i <= n;++i)
        {
            k -= (bool)k;
            for(;i + k <= n && sa[rk[i] - 1] + k <= n && a[i + k] == a[sa[rk[i] - 1] + k];++k);
            height[rk[i]] = st[rk[i]][0] = k;
        }
        for(register int i = 1;i <= LG;++i)
            for(register int j = 1;j + (1 << i) - 1 <= n;++j)
                st[j][i] = min(st[j][i - 1],st[j + (1 << i - 1)][i - 1]);
    }
    int query(int l,int r)
    {
        l = rk[l],r = rk[r];
        if(l > r)
            swap(l,r);
        ++l;
        int lg = lg2[r - l + 1];
        return min(st[l][lg],st[r - (1 << lg) + 1][lg]);
    }
} s,t;
int main()
{
    for(register int i = 2;i <= N;++i)
        lg2[i] = lg2[i / 2] + 1;
    scanf("%d",&T);
    while(T--)
    {
        scanf("%s",s.a + 1);
        n = strlen(s.a + 1);
        for(register int i = 1;i <= n;++i)
            t.a[i] = s.a[n - i + 1];
        s.build(),t.build();
        memset(a,0,sizeof a),memset(b,0,sizeof b);
        for(register int w = 1;w <= n / 2;++w)
            for(register int i = w;i <= n;i += w)
            {
                int l = i,r = i + w;
                int lcp = s.query(l,r),lcs = t.query(n - r + 2,n - l + 2);
                lcp = min(lcp,w),lcs = min(lcs,w - 1);
                if(lcp + lcs >= w)
                    ++b[l - lcs],--b[l - w + lcp + 1],
                    ++a[r + w - lcs - 1],--a[r + lcp];
            }
        for(register int i = 1;i <= n;++i)
            a[i] += a[i - 1],b[i] += b[i - 1];
        ans = 0;
        for(register int i = 1;i < n;++i)
            ans += a[i] * b[i + 1];
        printf("%lld\n",ans);
    }
}

详细

Test #1:

score: 5
Accepted
time: 6ms
memory: 3456kb

input:

10
wwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwww
kkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkk...

output:

462056
140600
875978
575960
811035
299536
173880
414090
227128
924490

result:

ok 10 numbers

Test #2:

score: 5
Accepted
time: 5ms
memory: 3400kb

input:

10
aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa
qqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqq...

output:

369564
513590
285760
308945
408312
190568
180441
328350
437635
1091574

result:

ok 10 numbers

Test #3:

score: 5
Accepted
time: 9ms
memory: 3676kb

input:

10
kkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkk...

output:

92601930
126763350
233408728
111659395
147774025
41791750
62056280
198982282
172593608
298613460

result:

ok 10 numbers

Test #4:

score: 5
Accepted
time: 9ms
memory: 3616kb

input:

10
nnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnn...

output:

241383298
63369600
53220335
75846485
53073182
47276061
287600152
128609208
205431400
71461299

result:

ok 10 numbers

Test #5:

score: 5
Accepted
time: 3ms
memory: 3388kb

input:

10
nnnnnnnnnn
hzhzhzhzhz
zezezezeze
ndndndndnd
zvzvzvzvzv
bbbbbbbbbb
sgsgsgsgsg
fgfgfgfgfg
hxhxhxhxhx
fafafafafa

output:

30
3
3
3
3
30
3
3
3
3

result:

ok 10 numbers

Test #6:

score: 5
Accepted
time: 1ms
memory: 3384kb

input:

10
xxxxxxxxxx
wtwtwtwtwt
sososososo
xgxgxgxgxg
lblblblblb
rororororo
qfqfqfqfqf
qjqjqjqjqj
upupupupup
nynynynyny

output:

30
3
3
3
3
3
3
3
3
3

result:

ok 10 numbers

Test #7:

score: 5
Accepted
time: 1ms
memory: 3320kb

input:

10
jjjjjjjjjjjjjjjjjjjj
tgtgtgtgtg
mcomcomcomco
wthwthwthwth
aaitaaitaaitaait
pvaompvaompvaompvaom
ahahahahah
jwxmjwxmjwxmjwxm
pdfpdfpdfpdf
oiyfoiyfoiyfoiyf

output:

285
3
1
1
5
1
3
1
1
1

result:

ok 10 numbers

Test #8:

score: 5
Accepted
time: 1ms
memory: 3412kb

input:

10
iiiiiiiiiiiiiiiii
scscscscscscsc
bsobsobsobsobso
rppyrppyrppyrppy
xhnxhnxhnxhn
jfbjfbjfbjfb
tqtqtqtqtq
cdocdocdocdocdo
imgimgimgimg
zxzxzxzxzx

output:

168
13
4
5
1
1
3
4
1
3

result:

ok 10 numbers

Test #9:

score: 5
Accepted
time: 4ms
memory: 3404kb

input:

10
sssssssssssssssssssss
wawawawawawawawa
xlexlexlexlexlexlexle
cwqfcwqfcwqfcwqfcwqfcwqfcwqf
dappidappidappidappidappi
biwtbbiwtbbiwtbbiwtb
ipdbipdbipdbipdb
oyqjoyqjoyqjoyqj
miqozmiqozmiqozmiqoz
ofqgofqgofqgofqg

output:

330
22
18
23
14
3
1
1
1
1

result:

ok 10 numbers

Test #10:

score: 5
Accepted
time: 1ms
memory: 3412kb

input:

10
zzzzzzzzzzzzzzzzzzzzzzzzzzz
icicicicicicicicicicic
saasaasaasaasaasaasaa
znunznunznunznunznun
ttfhhttfhhttfhhttfhhttfhh
fqxqblfqxqblfqxqblfqxqblfqxqbl
xxpruxxpruxxpruxxpru
mpheqsmpheqsmpheqsmpheqs
ptvbemqptvbemqptvbemqptvbemq
nxykqknxykqknxykqknxykqk

output:

728
70
36
5
26
7
5
1
1
1

result:

ok 10 numbers

Test #11:

score: 5
Accepted
time: 4ms
memory: 3396kb

input:

10
jjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjj
ibibibibibibibibibibibibibibibibibibibibibibibib
xinxinxinxinxinxinxinxinxinxinxin
ivlwivlwivlwivlwivlwivlw
cxrvucxrvucxrvucxrvucxrvucxrvucxrvucxrvucxrvu
jzqfmgjzqfmgjzqfmgjzqfmgjzqfmg
nqctlysnqctlysnqctlysnqctlysnqctlysnqctlysnqctlys
kuizuntnkuizuntnkuizuntnkuizu...

output:

1240
946
100
11
76
7
38
9
18
1

result:

ok 10 numbers

Test #12:

score: 5
Accepted
time: 4ms
memory: 3320kb

input:

10
vvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvv
dvdvdvdvdvdvdvdvdvdvdvdvdv
jhyjhyjhyjhyjhyjhyjhyjhyjhy
dkbjdkbjdkbjdkbjdkbjdkbjdkbjdkbj
ezlbtezlbtezlbtezlbtezlbtezlbtezlbtezlbt
efwduoefwduoefwduoefwduoefwduoefwduoefwduo
eqgdlgxeqgdlgxeqgdlgxeqgdlgxeqgdlgxeqgdlgx
mwuoqleamwuoqleamwuoqleamwuoqlea
gwcbhodfpgwcb...

output:

1632
125
48
38
46
33
17
1
1
5

result:

ok 10 numbers

Test #13:

score: 5
Accepted
time: 5ms
memory: 3336kb

input:

10
vvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvv
xwxwxwxwxwxwxwxwxwxwxwxwxwxwxwxwxwxwxwxwxwxwxwxwxwxwxwxwxwxwxwxwxwxwxwxwxwxwxwxwxwxwxwxw
rslrslrslrslrslrslrslrslrslrslrslrslrslrslrslrslrslrslrslrslrslrslrslrsl
iimeiimeiimeiimeiimeiimeiimeiimeiimeiimeiimeiime...

output:

25585
6391
1386
1014
876
567
62
118
33
86

result:

ok 10 numbers

Test #14:

score: 5
Accepted
time: 4ms
memory: 3404kb

input:

10
rrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrr
ozozozozozozozozozozozozozozozozozozozozozozozozozozozozozozozoz
ysvysvysvysvysvysvysvysvysvysvysvysvysvysvysvysvysvysv
ipbdipbdipbdipbdipbdipbdipbdipbdipbdipbdipbdipbdipbdipbdipbdipbdipbdipbdipbdipbdipbdipbdipbdipbd
x...

output:

19019
2360
540
1826
110
7
511
118
132
53

result:

ok 10 numbers

Test #15:

score: 5
Accepted
time: 2ms
memory: 3420kb

input:

10
ssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssss
vzvzvzvzvzvzvzvzvzvzvzvzvzvzvzvzvzvzvzvzvzvzvzvzvzvzvzvzvzvzvzvzvzvzvzvzvzvzvzvzvzvzvzvzvzvzvzvzvzvzvzvzvzvzvzvzvzvzvzvzvzvz
yzkyzkyzkyzkyzk...

output:

155155
18445
7600
13475
3328
72
114
37
17
6

result:

ok 10 numbers

Test #16:

score: 5
Accepted
time: 1ms
memory: 3400kb

input:

10
iiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiii
bxbxbxbxbxbxbxbxbxbxbxbxbxbxbxbxbxbxbxbxbxbxbxbxbxbxbxbxbxbxbxbxbxbxbxbxbxbxbxbxbxbxbxbxbxbxbxbxbxbxbxbxbx...

output:

281295
48503
26100
13475
20516
80
72
59
21
26

result:

ok 10 numbers

Test #17:

score: 5
Accepted
time: 2ms
memory: 3464kb

input:

10
iiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiii...

output:

1391040
981179
345415
50677
52576
227
28
413
144
50

result:

ok 10 numbers

Test #18:

score: 5
Accepted
time: 7ms
memory: 3464kb

input:

10
fffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff...

output:

38263590
33623065
4070400
510708
624588
2102
1074
299
408
1538

result:

ok 10 numbers

Test #19:

score: 5
Accepted
time: 9ms
memory: 3648kb

input:

10
qqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqq...

output:

245030555
46877978
4884100
14318590
12858978
5063
5381
7598
4729
5228

result:

ok 10 numbers

Test #20:

score: 5
Accepted
time: 115ms
memory: 8304kb

input:

10
yyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyy...

output:

563349754956
161455324997
76621205738
70150901846
40842068960
6056659
2820346
3357795
2628223
10884

result:

ok 10 numbers

Extra Test:

score: 0
Extra Test Passed