Cod sursa(job #2532282)

Utilizator BAlexandruBorgovan Alexandru BAlexandru Data 27 ianuarie 2020 17:50:20
Problema Problema Damelor Scor 100
Compilator cpp-64 Status done
Runda Arhiva educationala Marime 0.82 kb
#include <bits/stdc++.h>

using namespace std;

ifstream f("damesah.in");
ofstream g("damesah.out");

int n;
int c[14];
int nr;
bool u[14], ud1[25], ud2[25];

void bkt(int k)
{
    for (int i=1;i<=n;i++)
        if (!u[i] && !ud1[k+i-1] && !ud2[k+n-i])
        {
            c[k]=i;
            u[i]=1;
            ud1[k+i-1]=1;
            ud2[k+n-i]=1;

            if (k==n)
            {
                if (!nr)
                {
                    for (int j=1;j<=n;j++)
                        g<<c[j]<<" ";
                    g<<"\n";
                }
                nr++;
            }
            else
                bkt(k+1);

            u[i]=0;
            ud1[k+i-1]=0;
            ud2[k+n-i]=0;
        }
}

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