QOJ.ac
QOJ
| ID | Problem | Submitter | Result | Time | Memory | Language | File size | Submit time | Judge time |
|---|---|---|---|---|---|---|---|---|---|
| #702669 | #9536. Athlete Welcome Ceremony | ucup-team3510# | WA | 1ms | 6180kb | C++14 | 1.6kb | 2024-11-02 16:23:18 | 2024-11-02 16:23:18 |
Judging History
answer
#include <bits/stdc++.h>
using namespace std;
const int p=1e9+7;
int n,q,dp[311][311][311][4],sum[311][311][311];
char s[311];
int main()
{
scanf("%d%d",&n,&q);scanf("%s",s+1);
dp[0][0][0][0]=1;
int cnt[3]={0,0,0};
for(int i=1;i<=n;++i)if(s[i]!='?')
{
++cnt[s[i]-'a'];
}
for(int a=0;a<n;++a)
{
for(int b=0;a+b<n;++b)
{
for(int c=0;a+b+c<n;++c)
{
int i=a+b+c;
for(int o=0;o<=3;++o)if(dp[a][b][c][o])
{
if((s[i+1]=='a'||s[i+1]=='?')&&o!=1)
{
dp[a+1][b][c][1]=(dp[a+1][b][c][1]+dp[a][b][c][o])%p;
}
if((s[i+1]=='b'||s[i+1]=='?')&&o!=2)
{
dp[a][b+1][c][2]=(dp[a][b+1][c][2]+dp[a][b][c][o])%p;
}
if((s[i+1]=='c'||s[i+1]=='?')&&o!=3)
{
dp[a][b][c+1][3]=(dp[a][b][c+1][3]+dp[a][b][c][o])%p;
}
}
}
}
}
for(int a=0;a<=n;++a)for(int b=0;a+b<=n;++b)for(int o=0;o<=3;++o)
{
int c=n-a-b;
sum[a][b][c]=(sum[a][b][c]+dp[a][b][c][o])%p;
}
for(int a=0;a<=n;++a)
{
for(int b=0;b<=n;++b)
{
for(int c=0;c<=n;++c)
{
if(a)
{
sum[a][b][c]=(sum[a-1][b][c]+sum[a][b][c])%p;
}
}
}
}
for(int a=0;a<=n;++a)
{
for(int b=0;b<=n;++b)
{
for(int c=0;c<=n;++c)
{
if(b)
{
sum[a][b][c]=(sum[a][b-1][c]+sum[a][b][c])%p;
}
}
}
}
for(int a=0;a<=n;++a)
{
for(int b=0;b<=n;++b)
{
for(int c=0;c<=n;++c)
{
if(c)
{
sum[a][b][c]=(sum[a][b][c-1]+sum[a][b][c])%p;
}
}
}
}
while(q--)
{
int x,y,z;scanf("%d%d%d",&x,&y,&z);
x+=cnt[0];y+=cnt[1];z+=cnt[2];
printf("%d\n",(sum[x][y][z]%p+p)%p);
}
}
Details
Tip: Click on the bar to expand more detailed information
Test #1:
score: 100
Accepted
time: 1ms
memory: 6112kb
input:
6 3 a?b??c 2 2 2 1 1 1 1 0 2
output:
3 1 1
result:
ok 3 lines
Test #2:
score: 0
Accepted
time: 1ms
memory: 6012kb
input:
6 3 ?????? 2 2 2 2 3 3 3 3 3
output:
30 72 96
result:
ok 3 lines
Test #3:
score: 0
Accepted
time: 1ms
memory: 5892kb
input:
1 1 ? 0 1 1
output:
2
result:
ok single line: '2'
Test #4:
score: 0
Accepted
time: 0ms
memory: 6032kb
input:
10 10 acab?cbaca 0 2 0 1 1 2 4 2 3 1 1 1 3 5 1 0 5 2 2 2 0 1 2 5 4 3 0 1 1 3
output:
0 1 1 1 1 0 1 1 1 1
result:
ok 10 lines
Test #5:
score: -100
Wrong Answer
time: 0ms
memory: 6180kb
input:
10 10 ?c?c?cbac? 10 5 1 5 8 7 9 2 6 5 7 1 5 2 6 5 6 5 5 10 3 9 1 10 2 5 9 1 2 9
output:
0 0 11 16 11 16 0 0 0 0
result:
wrong answer 1st lines differ - expected: '16', found: '0'