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QOJ
ID | Problem | Submitter | Result | Time | Memory | Language | File size | Submit time | Judge time |
---|---|---|---|---|---|---|---|---|---|
#713850 | #9536. Athlete Welcome Ceremony | EMTz | WA | 167ms | 448832kb | C++20 | 2.6kb | 2024-11-05 20:42:25 | 2024-11-05 20:42:26 |
Judging History
answer
#include <bits/stdc++.h>
#define int long long
#define lson k<<1
#define rson (k<<1)|1
#define debug cout<<666<<endl;
using namespace std;
const int N=1e6+5;
const int M=1e9+7;
int dp[2][155][155][155][4];
int a[305][305][305];
int sum[305][305][305];
void vision()
{
int n,m;
cin>>n>>m;
string s;
cin>>s;
s=" "+s+" ";
int all=0;
int op=1;
for(int i=1;i<=n;i++)
{
if(s[i]!='?')
{
continue;
}
if(s[i]=='?')all++;
for(int x=0;x<=min(n/2,all);x++)
{
for(int y=0;y<=min(n/2,all-x);y++)
{
int z=all-x-y;
if(z<0) break;
if(z>n/2) continue;
for(int k=1;k<=3;k++)
{
int la=-1,ne=-1;
if(s[i-1]=='a') la=1;
if(s[i-1]=='b') la=2;
if(s[i-1]=='c') la=3;
if(s[i+1]=='a') ne=1;
if(s[i+1]=='b') ne=2;
if(s[i+1]=='c') ne=3;
if(k==la||k==ne) continue;
if(s[i-1]=='?')
{
for(int j=1;j<=3;j++)
{
if(k==j) continue;
if(k==1&&x>0)dp[op][x][y][z][k]+=dp[op^1][x-1][y][z][j];
if(k==2&&y>0)dp[op][x][y][z][k]+=dp[op^1][x][y-1][z][j];
if(k==3&&z>0)dp[op][x][y][z][k]+=dp[op^1][x][y][z-1][j];
dp[op][x][y][z][k]%=M;
}
}
else
{
if(all==1)
{
if(k==1&&x>0)dp[op][x][y][z][k]=1;
if(k==2&&y>0)dp[op][x][y][z][k]=1;
if(k==3&&z>0)dp[op][x][y][z][k]=1;
continue;
}
for(int j=1;j<=3;j++)
{
if(k==1&&x>0)dp[op][x][y][z][k]+=dp[op^1][x-1][y][z][j];
if(k==2&&y>0)dp[op][x][y][z][k]+=dp[op^1][x][y-1][z][j];
if(k==3&&z>0)dp[op][x][y][z][k]+=dp[op^1][x][y][z-1][j];
dp[op][x][y][z][k]%=M;
}
}
}
}
}
op^=1;
}
for(int i=0;i<=300;i++)
{
for(int j=0;j<=300;j++)
{
for(int z=0;z<=300;z++)
{
if(i+j+z!=all||i>n/2||j>n/2||z>n/2) a[i+1][j+1][z+1]=0;
else
{
a[i+1][j+1][z+1]=dp[op^1][i][j][z][1]+dp[op^1][i][j][z][2]+dp[op^1][i][j][z][3];
a[i+1][j+1][z+1]%=M;
}
sum[i+1][j+1][z+1]=a[i+1][j+1][z+1]+sum[i+1][j+1][z-1+1]+sum[i+1][j-1+1][z+1]-sum[i+1][j-1+1][z-1+1]+sum[i-1+1][j+1][z+1]-sum[i-1+1][j+1][z-1+1]-sum[i-1+1][j-1+1][z+1]+sum[i-1+1][j-1+1][z-1+1];
sum[i+1][j+1][z+1]%=M;
}
}
}
// cout<<a[1][1][1]<<"\n";
while(m--)
{
int x,y,z;
cin>>x>>y>>z;
if(x+y+z<all)
{
cout<<0<<"\n";
continue;
}
int ans=sum[x+1][y+1][z+1];
ans%=M;
cout<<ans<<"\n";
}
return ;
}
signed main()
{
ios_base::sync_with_stdio(false);
cin.tie(nullptr);
cout.tie(nullptr);
int t=1;
// cin>>t;
while(t--){
vision();
}
return 0;
}
Details
Tip: Click on the bar to expand more detailed information
Test #1:
score: 100
Accepted
time: 119ms
memory: 448612kb
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: 167ms
memory: 448832kb
input:
6 3 ?????? 2 2 2 2 3 3 3 3 3
output:
30 72 96
result:
ok 3 lines
Test #3:
score: -100
Wrong Answer
time: 123ms
memory: 441332kb
input:
1 1 ? 0 1 1
output:
0
result:
wrong answer 1st lines differ - expected: '2', found: '0'