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QOJ
ID | Problem | Submitter | Result | Time | Memory | Language | File size | Submit time | Judge time |
---|---|---|---|---|---|---|---|---|---|
#274588 | #5066. String-dle Count | GFFF | WA | 648ms | 35444kb | C++14 | 2.2kb | 2023-12-03 18:05:24 | 2023-12-03 18:05:25 |
Judging History
answer
#include<bits/stdc++.h>
using namespace std;
const int maxn=30,maxs=1<<19|7,mod=1e9+7;
inline void inc(int &x,int y) {x+=y;if(x>=mod) x-=mod;}
inline int mul(int x,int y) {return 1LL*x*y%mod;}
inline int qw(int a,int b,int ans=1) {for(;b;b>>=1,a=mul(a,a)) if(b&1) ans=mul(ans,a);return ans;}
int ans,n,K,ct,bin[maxn],wh[maxn],cnt[maxn],mn[maxn],mx[maxn],can[maxn][26],up[maxn],has[maxn],dp[maxn][maxs];
char s[maxn],t[maxn];
void work()
{
for(int i=0;i<26;++i) cnt[i]=0;
for(int i=1;i<=K;++i)
{
int x=s[i]-'A';
if(t[i]=='O')
{
++cnt[x];
for(int j=0;j<26;++j) can[i][j]=0;
can[i][x]=1;
}
else
{
can[i][x]=0;
if(t[i]=='x')
{
mx[x]=min(mx[x],cnt[x]);
up[x]=1;
}
else ++cnt[x];
}
}
for(int x=0;x<26;++x) mn[x]=max(mn[x],cnt[x]);
}
int main()
{
scanf("%d%d",&n,&K);
for(int i=bin[0]=1;i<=K;++i) bin[i]=bin[i-1]<<1;
for(int i=1;i<=K;++i)
for(int j=0;j<26;++j)
can[i][j]=1;
for(int i=0;i<26;++i) mn[i]=0,mx[i]=K;
for(int i=1;i<=n;++i)
{
scanf("%s",s+1);
scanf("%s",t+1);
work();
}
for(int i=0;i<26;++i)
if(mn[i]>mx[i])
return puts("0"),0;
for(int i=0;i<26;++i)
for(int j=1;j<=mn[i];++j)
{
has[i]|=bin[ct];
wh[ct]=i;
++ct;
if(ct>K) return puts("0"),0;
}
if(ct>K) return puts("0"),0;
const int mmx=(1<<ct)-1;
dp[0][0]=1;
for(int i=0;i<K;++i)
for(int s=0;s<=mmx;++s)
if(dp[i][s])
{
for(int c=0;c<ct;++c)
if((!(bin[c]&s))&&can[i+1][wh[c]])
inc(dp[i+1][s|bin[c]],dp[i][s]);
for(int c=0;c<26;++c)
if((has[c]==(has[c]&s))&&!up[c]&&can[i+1][c])
inc(dp[i+1][s],dp[i][s]);
}
ans=dp[K][mmx];
for(int i=0;i<26;++i)
for(int j=1;j<=mn[i];++j)
ans=mul(ans,qw(j,mod-2));
cout<<ans<<endl;
return 0;
}
Details
Tip: Click on the bar to expand more detailed information
Test #1:
score: 100
Accepted
time: 0ms
memory: 3856kb
input:
2 5 CRANE xx--x NASAL OOxOO
output:
21
result:
ok 1 number(s): "21"
Test #2:
score: 0
Accepted
time: 0ms
memory: 3640kb
input:
1 5 BBBAA xxxx-
output:
0
result:
ok 1 number(s): "0"
Test #3:
score: 0
Accepted
time: 0ms
memory: 3632kb
input:
2 5 ABCDE -xxxx ABCDE xxxxx
output:
0
result:
ok 1 number(s): "0"
Test #4:
score: 0
Accepted
time: 0ms
memory: 3788kb
input:
1 3 ABC ---
output:
2
result:
ok 1 number(s): "2"
Test #5:
score: 0
Accepted
time: 1ms
memory: 3784kb
input:
1 15 AAAAAAAAAAAAAAB -xxxxxxxxxxxxxx
output:
918547951
result:
ok 1 number(s): "918547951"
Test #6:
score: 0
Accepted
time: 1ms
memory: 3700kb
input:
1 15 AAAAAAAAAAAAAAA -xxxxxxxxxxxxxx
output:
0
result:
ok 1 number(s): "0"
Test #7:
score: 0
Accepted
time: 0ms
memory: 3844kb
input:
1 1 K x
output:
25
result:
ok 1 number(s): "25"
Test #8:
score: 0
Accepted
time: 299ms
memory: 20060kb
input:
19 19 ZAZZZAZZZZZZZZZZAAZ x-xxxxxxxxxxxxxxxxx ZBZBZZBZZZZBZZZZBZZ x-xxxxxxxxxxxxxxxxx CZZCZZCZCZZCZZZCZZZ -xxxxxxxxxxxxxxxxxx ZDZZDZDZZZZZZZZZZZZ x-xxxxxxxxxxxxxxxxx ZZZZEEZEZZEEZZZZZZZ xxxx-xxxxxxxxxxxxxx ZZZZZFZZZZZZZZZZZZF xxxxx-xxxxxxxxxxxxx ZZGGZZZZZZZZGGGZZGZ xx-xxxxxxxxxxxxxxxx HHHHZHZZZZHHZZ...
output:
182644947
result:
ok 1 number(s): "182644947"
Test #9:
score: 0
Accepted
time: 603ms
memory: 35432kb
input:
19 19 AZZZZZAZZZZZZAZZZZZ -xxxxxxxxxxxxxxxxxx ZZZBZZBBZZBBZZBZBZB xxx-xxxxxxxxxxxxxxx ZZZZZCCZZZZZZZZZZZZ xxxxx-xxxxxxxxxxxxx ZZZDZDZZZZZZDZZZZDZ xxx-xxxxxxxxxxxxxxx EZZZZZZZEZZZZZZZZZZ -xxxxxxxxxxxxxxxxxx ZZZZZZZZFFZZZZZZZZZ xxxxxxxx-xxxxxxxxxx ZZZZZZZZZZZZZGZZZZG xxxxxxxxxxxxx-xxxxx ZZHHZZHZZZHZZH...
output:
791604390
result:
ok 1 number(s): "791604390"
Test #10:
score: 0
Accepted
time: 599ms
memory: 35444kb
input:
19 19 ZAZAZZZZAZZZZZZAZZZ x-xxxxxxxxxxxxxxxxx ZBZZZBZZBZZZZZZZBZZ x-xxxxxxxxxxxxxxxxx ZZZZZZZCZCZZZZZZZZZ xxxxxxx-xxxxxxxxxxx ZDDDZZZDZZZZZZZZZZZ x-xxxxxxxxxxxxxxxxx ZEZZEEZZZZZEZZEZZZE x-xxxxxxxxxxxxxxxxx ZZZFZZZZFZZZZZFZFFZ xxx-xxxxxxxxxxxxxxx ZZZGGZZZZZZZZZZZZZG xxx-xxxxxxxxxxxxxxx ZHHZZZZZZZZZHZ...
output:
721023482
result:
ok 1 number(s): "721023482"
Test #11:
score: 0
Accepted
time: 614ms
memory: 35320kb
input:
19 19 ZZZAZZZAZZZAZZAAZZA xxx-xxxxxxxxxxxxxxx BBZZBZZBZZZBBBZZBZB -xxxxxxxxxxxxxxxxxx ZZCZCCZCCCZCCZCCZZC xx-xxxxxxxxxxxxxxxx ZDZZDZDDZDZZZDZDDZZ x-xxxxxxxxxxxxxxxxx EEZEZEZEZZZZEZEEEZE -xxxxxxxxxxxxxxxxxx ZZZFZFFFZFFFFZFFFFZ xxx-xxxxxxxxxxxxxxx ZGZGGZGZGZGGGZZGGGZ x-xxxxxxxxxxxxxxxxx ZHZZZHZHHZZHZZ...
output:
432987142
result:
ok 1 number(s): "432987142"
Test #12:
score: 0
Accepted
time: 614ms
memory: 32848kb
input:
19 19 ZAAZAZZAAZAZZZZZZAA x-xxxxxxxxxxxxxxxxx ZBZBBBZZBZZBZBBBZZB x-xxxxxxxxxxxxxxxxx CZCCCZZCCCZZZCCZZCC -xxxxxxxxxxxxxxxxxx DZDZDDDDZDDZZZZZZDD -xxxxxxxxxxxxxxxxxx ZEEEEEZZEEZEZZZZEZE x-xxxxxxxxxxxxxxxxx ZZFFZZZFZFFFZZFFZFF xx-xxxxxxxxxxxxxxxx ZZGZZZGZGZZGZZZGZGG xx-xxxxxxxxxxxxxxxx HZZZHZHZZZZZHZ...
output:
562846236
result:
ok 1 number(s): "562846236"
Test #13:
score: 0
Accepted
time: 599ms
memory: 34932kb
input:
19 19 AZZZZAZAZZZAZAZZAZZ -xxxxxxxxxxxxxxxxxx BZBBZBZZZBBZBZBBZBZ -xxxxxxxxxxxxxxxxxx ZCCCCCZCCZCCZZCZZCC x-xxxxxxxxxxxxxxxxx DDDDZDDZDZDZDDDZZDZ -xxxxxxxxxxxxxxxxxx EZZEZZEZZEEZEEZZEEZ -xxxxxxxxxxxxxxxxxx ZZZZFZZFZZZFZZZZFZZ xxxx-xxxxxxxxxxxxxx GGZGZGGZGGZGGZZZGGG -xxxxxxxxxxxxxxxxxx ZHZZHHHHHZZHHH...
output:
241578701
result:
ok 1 number(s): "241578701"
Test #14:
score: 0
Accepted
time: 0ms
memory: 3828kb
input:
26 19 AAAAAAAAAAAAAAAAAAA ------------------- BBBBBBBBBBBBBBBBBBB ------------------- CCCCCCCCCCCCCCCCCCC ------------------- DDDDDDDDDDDDDDDDDDD ------------------- EEEEEEEEEEEEEEEEEEE ------------------- FFFFFFFFFFFFFFFFFFF ------------------- GGGGGGGGGGGGGGGGGGG ------------------- HHHHHHHHHHHHHH...
output:
0
result:
ok 1 number(s): "0"
Test #15:
score: 0
Accepted
time: 648ms
memory: 35320kb
input:
19 19 ZAZZZZZZZZZZZZZZZZZ x-xxxxxxxxxxxxxxxxx ZZZZZZZZBZZZZZZZZZZ xxxxxxxx-xxxxxxxxxx ZZZZZZZZZZZZZZCZZZZ xxxxxxxxxxxxxx-xxxx ZZDZZZZZZZZZZZZZZZZ xx-xxxxxxxxxxxxxxxx ZZZZZZZZZZZZZEZZZZZ xxxxxxxxxxxxx-xxxxx ZZZZZZZZZZZZZZZFZZZ xxxxxxxxxxxxxxx-xxx ZZZZZZZZZZZGZZZZZZZ xxxxxxxxxxx-xxxxxxx ZZZZZZZZZZZZZZ...
output:
143269517
result:
ok 1 number(s): "143269517"
Test #16:
score: 0
Accepted
time: 0ms
memory: 3856kb
input:
1 3 PYP xxx
output:
13824
result:
ok 1 number(s): "13824"
Test #17:
score: 0
Accepted
time: 0ms
memory: 3644kb
input:
3 3 ENP xxx PJK xxx BZL xxx
output:
5832
result:
ok 1 number(s): "5832"
Test #18:
score: 0
Accepted
time: 0ms
memory: 3600kb
input:
5 3 LLK xxx WUQ xxx RDR xxx EUZ xxx FBU xxx
output:
3375
result:
ok 1 number(s): "3375"
Test #19:
score: 0
Accepted
time: 0ms
memory: 3740kb
input:
10 3 PKX xxx FBB xxx JSZ xxx RGB xxx BOS x-x OPG Oxx SHW xxx RDM xxx LHO xx- NBP xxx
output:
81
result:
ok 1 number(s): "81"
Test #20:
score: -100
Wrong Answer
time: 0ms
memory: 3832kb
input:
15 3 DCJ xxx NCW xxx WDE xxx MAO xOO JXC xxx OBO xxO ALB -xx JWZ xxx QXK xxx FZW xxx VAJ xOx VHL xxx AZG -x- BWQ xxx GWB Oxx
output:
0
result:
wrong answer 1st numbers differ - expected: '1', found: '0'