#include <bits/stdc++.h>
#define N 50005
using namespace std;
struct elem
{
string s,t;
}v[N];
int n,i,j;
map<string,string> m;
bool vrf()
{
string s,t;
for(i=1;i<=n;++i)
{
s=v[i].s;
t=v[i].t;
if(s[0]<='9' && t[0]<='9' && s!=t) return 0;
else if(s[0]<='9' && t[0]>'9')
{
if(m.count(t) && m[t]!=s) return 0;
m[t]=s;
}
else if(s[0]>'9' && t[0]<='9')
{
if(m.count(s) && m[s]!=t) return 0;
m[s]=t;
}
}
for(i=1;i<=n;++i)
{
s=v[i].s;
t=v[i].t;
if(s[0]>'9' && t[0]>'9')
{
if(m.count(t) && m.count(s) && m[t]!=m[s]) return 0;
else if(m.count(t) && !m.count(s)) m[s]=m[t];
else if(!m.count(t) && m.count(s)) m[t]=m[s];
}
}
for(i=1;i<=n;++i)
{
s=v[i].s;
t=v[i].t;
if(s[0]>'9' && t[0]>'9')
{
if(m.count(t) && m.count(s) && m[t]!=m[s]) return 0;
else if(m.count(t) && !m.count(s)) m[s]=m[t];
else if(!m.count(t) && m.count(s)) m[t]=m[s];
}
}
for(i=n;i>=1;--i)
{
s=v[i].s;
t=v[i].t;
if(s[0]>'9' && t[0]>'9')
{
if(m.count(t) && m.count(s) && m[t]!=m[s]) return 0;
else if(m.count(t) && !m.count(s)) m[s]=m[t];
else if(!m.count(t) && m.count(s)) m[t]=m[s];
}
}
for(i=1;i<=n;++i)
{
if(s[0]>'9' && t[0]>'9')
{
if(m[s]!=m[t]) return 0;
}
if(s[0]<='9' && t[0]>'9')
{
if(m[t]!=s) return 0;
}
if(s[0]>'9' && t[0]<='9')
{
if(m[s]!=t) return 0;
}
}
return 1;
}
int main()
{
cin>>n;
for(i=1;i<=n;++i)
{
cin>>v[i].s;
}
for(i=1;i<=n;++i)
{
cin>>v[i].t;
}
if(vrf()) cout<<"DA";
else cout<<"NE";
return 0;
}
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
1 ms |
3420 KB |
Output is correct |
2 |
Correct |
1 ms |
3420 KB |
Output is correct |
3 |
Correct |
1 ms |
3416 KB |
Output is correct |
4 |
Correct |
1 ms |
3420 KB |
Output is correct |
5 |
Correct |
1 ms |
3328 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
1 ms |
3420 KB |
Output is correct |
2 |
Correct |
1 ms |
3420 KB |
Output is correct |
3 |
Correct |
1 ms |
3420 KB |
Output is correct |
4 |
Correct |
1 ms |
3416 KB |
Output is correct |
5 |
Correct |
2 ms |
3416 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
1 ms |
3420 KB |
Output is correct |
2 |
Correct |
1 ms |
3420 KB |
Output is correct |
3 |
Correct |
1 ms |
3420 KB |
Output is correct |
4 |
Correct |
1 ms |
3420 KB |
Output is correct |
5 |
Correct |
1 ms |
3420 KB |
Output is correct |
6 |
Correct |
1 ms |
3420 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
3 ms |
3420 KB |
Output is correct |
2 |
Correct |
4 ms |
3420 KB |
Output is correct |
3 |
Correct |
2 ms |
3420 KB |
Output is correct |
4 |
Correct |
3 ms |
3420 KB |
Output is correct |
5 |
Correct |
6 ms |
3676 KB |
Output is correct |
6 |
Correct |
3 ms |
3676 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
5 ms |
3420 KB |
Output is correct |
2 |
Correct |
48 ms |
4788 KB |
Output is correct |
3 |
Correct |
32 ms |
4180 KB |
Output is correct |
4 |
Correct |
39 ms |
5352 KB |
Output is correct |
5 |
Correct |
85 ms |
4436 KB |
Output is correct |
6 |
Correct |
137 ms |
5500 KB |
Output is correct |