#include <iostream>
using namespace std;
using num = long long;
num gora[26][26];
num dol[26][26];
num lewo[26][26];
num prawo[26][26];
bool tab[26][26][26][26];
int main()
{
ios_base::sync_with_stdio(0);
cin.tie(0);
cout.tie(0);
num n;
num r = 0;
cin >> n;
for (num i = 0; i < n; ++i)
{
string s1;
string s2;
cin >> s1 >> s2;
num a = s1[0] - 65;
num b = s1[1] - 65;
num c = s2[0] - 65;
num d = s2[1] - 65;
++gora [a][b];
++dol [c][d];
++prawo[b][d];
++lewo [a][c];
tab[a][b]
[c][d] = true;
if (tab[c][d]
[a][b])
{
++r;
}
if (tab[b][a]
[d][c])
{
++r;
}
if (a == d)
{
for (num j = 0; j < 26; ++j)
{
if (tab[b][j]
[a][b])
{
++r;
}
}
for (num j = 0; j < 26; ++j)
{
if (tab[c][a]
[j][c])
{
++r;
}
}
}
else if (b == c)
{
for (num j = 0; j < 26; ++j)
{
if (tab[b][d]
[d][j])
{
++r;
}
}
for (num j = 0; j < 26; ++j)
{
if (tab[j][a]
[a][b])
{
++r;
}
}
}
if (a == d && b == c)
{
if (tab[b][a]
[a][b])
{
--r;
}
}
if (a == d && b == c && a == b)
{
--r;
}
}
num suma = 0;
for (num i = 0; i < 26; ++i)
{
for (num j = 0; j < 26; ++j)
{
suma += gora[i][j] * dol[i][j];
}
}
for (num i = 0; i < 26; ++i)
{
for (num j = 0; j < 26; ++j)
{
suma += prawo[i][j] * lewo[i][j];
}
}
cout << suma - r;
return 0;
}
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
0 ms |
340 KB |
Output is correct |
2 |
Correct |
0 ms |
284 KB |
Output is correct |
3 |
Correct |
1 ms |
340 KB |
Output is correct |
4 |
Incorrect |
1 ms |
340 KB |
Output isn't correct |
5 |
Halted |
0 ms |
0 KB |
- |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
0 ms |
340 KB |
Output is correct |
2 |
Correct |
0 ms |
284 KB |
Output is correct |
3 |
Correct |
1 ms |
340 KB |
Output is correct |
4 |
Incorrect |
1 ms |
340 KB |
Output isn't correct |
5 |
Halted |
0 ms |
0 KB |
- |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Incorrect |
56 ms |
724 KB |
Output isn't correct |
2 |
Halted |
0 ms |
0 KB |
- |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
0 ms |
340 KB |
Output is correct |
2 |
Correct |
7 ms |
724 KB |
Output is correct |
3 |
Correct |
45 ms |
724 KB |
Output is correct |
4 |
Correct |
29 ms |
724 KB |
Output is correct |
5 |
Correct |
22 ms |
724 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
0 ms |
340 KB |
Output is correct |
2 |
Correct |
0 ms |
340 KB |
Output is correct |
3 |
Correct |
0 ms |
284 KB |
Output is correct |
4 |
Correct |
1 ms |
340 KB |
Output is correct |
5 |
Incorrect |
1 ms |
340 KB |
Output isn't correct |
6 |
Halted |
0 ms |
0 KB |
- |