Cod sursa(job #1771892)

Utilizator raduamaistroaieRadu Amaistroaie raduamaistroaie Data 6 octombrie 2016 09:49:46
Problema Problema Damelor Scor 90
Compilator cpp Status done
Runda Arhiva educationala Marime 0.93 kb
#include <stdio.h>
#include <cmath>
using namespace std;
int x[14],n,nrsol;
void tipar(int k)
{
    nrsol++;
    if(nrsol==1)
    {
    for(int i=1;i<=n;i++)
    {
        printf("%d ", x[i]);
    }
    printf("\n");
    }
}

int valid(int k)
{
    for(int i=1;i<=k-1;i++)
        if(x[i]==x[k] || k-i==fabs(x[k]-x[i]))
            return 0;
    return 1;
}
int sol(int k)
{
    return k==n;
}
void bkt()
{
    int k=1;
    x[k]=0;
    while(k)
    {
    if(x[k]<n)
    {
        x[k]=x[k]+1;
        if(valid(k))
            if(sol(k))
            {
                tipar(k);
            }
            else
            {
                k++;
                x[k]=0;
            }
    }
    else
    k--;
    }
}
int main()
{
    freopen("damesah.in","r",stdin);
    freopen("damesah.out","w",stdout);
    scanf("%d", &n);
    nrsol=0;
    bkt();
    printf("%d", nrsol);
    return 0;
}