Cod sursa(job #1473531)

Utilizator adiXMGemene Adrian adiXM Data 19 august 2015 16:19:16
Problema Problema Damelor Scor 90
Compilator cpp Status done
Runda Arhiva educationala Marime 0.75 kb
#include <fstream>
#include <algorithm>
using namespace std;
ifstream f("damesah.in");
ofstream g("damesah.out");
int n,k;
int viz[170],a[170],nr=0;
inline void Back(int k){

    if(k==n+1)
    {
        nr++;
        if(nr==1)
        {
            for(int i=1;i<=n;i++)
                g<<a[i]<<" ";
            g<<"\n";
        }
        return;
    }
    for(int i=1;i<=n;i++)
        if(viz[i]==0)
        {
            viz[i]=1;
            a[k]=i;
            bool ok=1;
            for(int j=1;j<k;j++)
                if(k-j==abs(a[k]-a[j]))
                    ok=0;
            if(ok)
                Back(k+1);
            viz[i]=0;
        }

}
int main()
{
    f>>n;
    Back(1);
    g<<nr;
    return 0;
}