Cod sursa(job #1913234)

Utilizator maria_sinteaMaria Sintea maria_sintea Data 8 martie 2017 12:15:25
Problema Problema Damelor Scor 50
Compilator cpp Status done
Runda Arhiva educationala Marime 0.79 kb
#include <cstdio>
#define N 14

using namespace std;

int n, nr, sol[N];
int vizc[N], vizdp[N], vizds[N];

void afisare()
{
    for(int i=0;i<n;i++)
        printf("%d ", sol[i]);
}

void bt(int k)
{
    if(k==n)
    {
        if(nr==0)
            afisare();
        nr++;
        return;
    }
    for(int v=0;v<n;v++)
        if(!vizc[v] && !vizds[v+k] && !vizdp[v-k+n])
        {
            sol[k]=v+1;
            vizc[v]=1;
            vizds[v+k]=1;
            vizdp[v-k+n]=1;
            bt(k+1);
            vizc[v]=0;
            vizds[v+k]=0;
            vizdp[v-k+n]=0;
        }
}

int main()
{
    freopen("damesah.in", "r", stdin);
    freopen("damesah.out", "w", stdout);

    scanf("%d", &n);
    bt(0);
    printf("\n%d", nr);
    return 0;
}