#include <iostream>
#include <unordered_map>
#include <set>
#include <cstring>
#include <string>
using namespace std;
unordered_map <int, int> umap;
unordered_map <string, int> found;
int v[50005], v1[50005], n, cnt=1006;
int transform_nr (string s)
{
if (!isdigit (s[0]))
{
if (found[s])
{
return found[s];
}
else
{
found[s]=++cnt;
return found[s];
}
}
else
{
int nr=0;
for (int i=0; s[i]; i++)
{
nr=nr*10+s[i]-'0';
}
return nr;
}
}
int main()
{
cin >> n;
for (int i=1; i<=n; i++)
{
string s;
cin >> s;
v[i]=transform_nr (s);
}
for (int i=1; i<=n; i++)
{
string s;
cin >> s;
v1[i]=transform_nr (s);
}
for (int i=1; i<=n; i++)
{
if (v[i]<=1000 && v1[i]<=1000)
{
if (v[i]!=v1[i])
{
cout << "NE";
return 0;
}
}
if (v[i]>1000 && v1[i]<=1000)
{
if (umap[v[i]] && umap[v[i]]!=v1[i])
{
cout << "NE";
return 0;
}
umap[v[i]]=v1[i];
}
if (v[i]<=1000 && v1[i]>1000)
{
if (umap[v1[i]] && umap[v1[i]]!=v[i])
{
cout << "NE";
return 0;
}
umap[v1[i]]=v[i];
}
if (v[i]>1000 && v1[i]>1000)
{
if (!umap[v[i]] && !umap[v1[i]])
{
continue;
}
if (umap[v[i]] && umap[v1[i]] && umap[v[i]]!=umap[v1[i]])
{
cout << "NE";
return 0;
}
else if (!umap[v[i]])
{
umap[v[i]]=umap[v1[i]];
}
else if (!umap[v1[i]])
{
umap[v1[i]]=umap[v[i]];
}
}
}
bool edited=1;
while (edited)
{
edited=0;
for (int i=1; i<=n; i++)
{
if (v[i]>1000 && v1[i]>1000)
{
if (!umap[v[i]] && !umap[v1[i]])
{
continue;
}
if (umap[v[i]] && umap[v1[i]] && umap[v[i]]!=umap[v1[i]])
{
cout << "NE";
return 0;
}
else if (!umap[v[i]])
{
umap[v[i]]=umap[v1[i]];
edited=1;
}
else if (!umap[v1[i]])
{
umap[v1[i]]=umap[v[i]];
edited=1;
}
}
}
}
cout << "DA";
return 0;
}
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
0 ms |
348 KB |
Output is correct |
2 |
Correct |
0 ms |
348 KB |
Output is correct |
3 |
Correct |
0 ms |
348 KB |
Output is correct |
4 |
Correct |
0 ms |
348 KB |
Output is correct |
5 |
Correct |
0 ms |
348 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
0 ms |
444 KB |
Output is correct |
2 |
Correct |
0 ms |
348 KB |
Output is correct |
3 |
Correct |
0 ms |
348 KB |
Output is correct |
4 |
Correct |
0 ms |
348 KB |
Output is correct |
5 |
Correct |
0 ms |
348 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
0 ms |
344 KB |
Output is correct |
2 |
Correct |
0 ms |
348 KB |
Output is correct |
3 |
Correct |
0 ms |
348 KB |
Output is correct |
4 |
Correct |
0 ms |
348 KB |
Output is correct |
5 |
Correct |
0 ms |
348 KB |
Output is correct |
6 |
Correct |
0 ms |
348 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
1 ms |
348 KB |
Output is correct |
2 |
Correct |
1 ms |
348 KB |
Output is correct |
3 |
Correct |
1 ms |
604 KB |
Output is correct |
4 |
Correct |
2 ms |
604 KB |
Output is correct |
5 |
Correct |
2 ms |
604 KB |
Output is correct |
6 |
Correct |
1 ms |
604 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
5 ms |
1116 KB |
Output is correct |
2 |
Correct |
12 ms |
2140 KB |
Output is correct |
3 |
Correct |
17 ms |
3512 KB |
Output is correct |
4 |
Correct |
24 ms |
4020 KB |
Output is correct |
5 |
Correct |
51 ms |
6504 KB |
Output is correct |
6 |
Correct |
31 ms |
2908 KB |
Output is correct |