Cod sursa(job #1787636)

Utilizator leeviiTempfli Levente2 leevii Data 24 octombrie 2016 21:01:28
Problema Problema Damelor Scor 90
Compilator cpp Status done
Runda Arhiva educationala Marime 1.16 kb
#include <iostream>
#include <fstream>
#include <cmath>

using namespace std;

ifstream fin("damesah.in");
ofstream fout("damesah.out");
bool ok=1;
int n,x[14],db,s[14];

int jo(int l)
{
    int ok=1;
    int i;
    for(i=1;i<=l-1;i++)
    {
        if(x[l]==x[i])
        {
            ok=0;
            break;
        }
        if(abs(x[l]-x[i])==abs(l-i))
        {
            ok=0;
            break;
        }
    }
    return ok;
}


void kiir()
{
    int i,j;
    if(ok==1)
    {
        ok=0;
        for(i=1;i<=n;i++)
        {
            for(j=1;j<=n;j++)
            {
                if(x[i]==j)
                {
                    fout<<j<<" ";
                    break;
                }
            }
        }
    }
    db++;

}



int back2(int lep)
{
    int i;
    for(i=1;i<=n;i++)
    {
        if(s[i]==0)
        {
            s[i]=1;
            x[lep]=i;
            if(jo(lep))
            {
                if(lep==n) kiir();
                else back2(lep+1);
            }
            s[i]=0;
        }

    }
}

int main()
{
    fin>>n;
    back2(1);
    fout<<"\n"<<db;
}