Cod sursa(job #1396917)
Utilizator | Data | 23 martie 2015 09:37:59 | |
---|---|---|---|
Problema | Problema Damelor | Scor | 100 |
Compilator | cpp | Status | done |
Runda | Arhiva educationala | Marime | 0.79 kb |
#include <fstream>
using namespace std;
ifstream F("damesah.in");
ofstream G("damesah.out");
const int N = 15;
int n,ans,v[N],c[N],d1[N<<1],d2[N<<1];
void go(int l)
{
if ( l == n+1 )
{
if ( ans == 0 )
{
for (int i=1;i<=n;++i)
G<<v[i]<<' ';
G<<'\n';
}
++ans;
}
else
for (int i=1;i<=n;++i)
if ( c[i] == 0 && d1[n+i-l-1] == 0 && d2[i+l] == 0 )
{
d1[n+i-l-1] = 1;
d2[i+l] = 1;
c[i] = 1;
v[l] = i;
go(l+1);
d1[n+i-l-1] = 0;
d2[i+l] = 0;
c[i] = 0;
}
}
int main()
{
F>>n;
go(1);
G<<ans<<'\n';
}