Cod sursa(job #2391324)
Utilizator | Vlad - Gabriel Iftimescu ezioconnor | Data | 28 martie 2019 19:17:35 |
---|---|---|---|
Problema | Dame | Scor | 10 |
Compilator | cpp-64 | Status | done |
Runda | Arhiva de probleme | Marime | 0.88 kb |
#include <fstream>
using namespace std;
ifstream in("dame.in");
ofstream out("dame.out");
int main()
{
int n;
in >> n;
if (n <= 2)
out << 1 << '\n' << 1 << " " << 1;
else
{
if (n % 2 == 1)
{
out << n - 1 << '\n';
int x = 1, y = 1;
for (int i = 1; i < n; ++i)
{
if (y > n)
y = 2;
out << x << " " << y << '\n';
++x;
y += 2;
}
}
else
{
out << n << '\n';
int x = 1, y = 1;
for (int i = 1; i <= n; ++i)
{
if (y > n)
y = 2;
out << x << " " << y << '\n';
++x;
y += 2;
}
}
}
return 0;
}