QOJ.ac
QOJ
| ID | Problem | Submitter | Result | Time | Memory | Language | File size | Submit time | Judge time |
|---|---|---|---|---|---|---|---|---|---|
| #614882 | #7900. Gifts from Knowledge | wzxtsl | WA | 17ms | 11828kb | C++23 | 3.5kb | 2024-10-05 17:05:49 | 2024-10-05 17:05:51 |
Judging History
answer
#include<bits/stdc++.h>
using namespace std;
#define fast ios::sync_with_stdio(false),cin.tie(0),cout.tie(0)
#define int long long
#define PII pair<int,int>
int r,c,x,cnt,ii,jj,iii,jjj;
const int N=1e6+7;
const int mod=1e9+7;
int f[N],f1[N],f2[N],vis[N],a[N];
string s;
vector<int> v[N];
void init(){
for(int i=1;i<=r;i++)
f[i]=f1[i]=f2[i]=i,v[i].clear(),vis[i]=0;
}
int qpow(int a,int m){
int res=1,x=a;
while(m)
{
if(m&1) res=res*x%mod;//
x=x*x%mod;m>>=1;
}
return (res+mod)%mod;
}
void solve(){
cin>>r>>c;
init();
for(int i=1;i<=r;i++)
{
cin>>s;
for(int j=0;j<s.length();j++)
{
x=s[j]-'0';
v[i].push_back(x);
}
}
//cout<<r<<"!"<<c<<endl;
/*for(int i=1;i<=r;i++){
for(int j=1;j<=c;j++)
{
cout<<v[i][j-1];
}
cout<<endl;
}*/
for(int j=1;j<=c/2;j++)
{
cnt=0;
for(int i=1;i<=r;i++)
{
if(v[i][j-1]==1) cnt++;//,cout<<i<<"!"<<j<<"!!"
if(v[i][c-j]==1) cnt++;//,cout<<i<<"!"<<c-i+1<<"!!"
}
if(cnt>=3)
{
cout<<0<<endl;return ;
}
}
cnt=0;
if(c&1)
{
for(int i=1;i<=r;i++)
{
if(v[i][c/2]==1) cnt++;
}
if(cnt>=2)
{
cout<<0<<endl;return ;
}
}
for(int j=1;j<=c/2;j++)
{
cnt=0;ii=jj=iii=jjj=0;
for(int i=1;i<=r;i++)
{
if(v[i][j-1]==1)
{
cnt++;
if(cnt==1)
{
ii=i,jj=j;
}
else
{
iii=i,jjj=j;
}
}
if(v[i][c-j]==1)
{
cnt++;
if(cnt==1)
{
ii=i,jj=c-j+1;
}
else
{
iii=i,jjj=c-j+1;
}
}
if(cnt==2) break;
}
if(cnt<2) continue;
else{
if(ii>iii) swap(ii,iii);
if(jj>jjj) swap(jj,jjj);
if(ii==iii) continue;
else{//if(j==1)cout<<ii<<"!"<<jj<<"!!";
if(jj==jjj)
{
if(f2[iii]==ii)
{
cout<<0<<endl;return;
}
f1[iii]=ii; //
}
else{
if(f1[iii]==ii)
{
cout<<0<<endl;return;
}
f2[iii]=ii;
}
}
}
}
//int tp=0;
for(int i=1;i<=r;i++)
{
int tp=f2[i],flg=0,tmp=f1[i];
while(f2[i+1]==tp&&i<=r-1)
{
i++;
if(f1[i]==tmp)
{
cout<<0<<endl;return;
}
tmp=f1[i];
}
}
for(int i=1;i<=r;i++)
{
f[i]=min(f1[f2[i]],f2[f1[i]]);
vis[f[i]]=1;
}
cnt=0;
for(int i=1;i<=r;i++)
{
if(vis[i]) cnt++;
}
//cout<<f[2]<<"!"<<endl;
cout<<qpow(2ll,cnt)<<endl;
}
signed main(){
fast;
int t=1;
cin>>t;
while(t--){
solve();
}
}
Details
Tip: Click on the bar to expand more detailed information
Test #1:
score: 100
Accepted
time: 0ms
memory: 11776kb
input:
3 3 5 01100 10001 00010 2 1 1 1 2 3 001 001
output:
4 0 2
result:
ok 3 number(s): "4 0 2"
Test #2:
score: 0
Accepted
time: 12ms
memory: 11828kb
input:
15613 10 10 0000000000 0000000000 0000000000 0000000000 0000000000 0000000000 0000000000 0000000000 0000000000 0000000000 15 8 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 1 5 00000 5 9 000000000 000000000 0000...
output:
1024 32768 2 32 32768 128 32 16 16 2 16384 16384 128 128 32768 8192 128 64 16384 2 4 2 4096 16 4096 1024 32768 32768 16384 8 128 2 16 4096 8192 32768 8192 8192 16 16384 16384 256 128 8 256 8 4096 512 2 4 32 32 2 64 512 1024 32768 32768 2 64 16384 16 8192 16 256 16 64 8192 8192 64 1024 2 32768 2 4 51...
result:
ok 15613 numbers
Test #3:
score: -100
Wrong Answer
time: 17ms
memory: 11752kb
input:
15759 9 6 000000 000000 000000 000000 000000 000000 000000 000000 000000 5 15 010000000000000 000000000000000 000000000000000 000100000000000 000100000000000 14 12 000000000000 000000000000 000000000000 000000000000 000000000000 000000000000 000000000000 000000000000 000000000000 000000000000 000000...
output:
512 16 16384 512 1024 4096 32768 4 2 512 512 512 512 8 2 256 16 4096 512 64 16 4096 512 32 32768 8192 32 2048 128 16 4096 64 32768 256 32 16384 8 512 32 2048 8 16 1024 2048 128 64 32 8 512 8 8192 256 8192 32768 2 8 512 512 256 32 2 2048 8192 8 64 8 2 16384 32768 32768 1024 4096 16384 16384 128 256 4...
result:
wrong answer 462nd numbers differ - expected: '8192', found: '16384'