Cod sursa(job #2572219)

Utilizator spartanul300Vasile Andrei spartanul300 Data 5 martie 2020 12:09:52
Problema Problema Damelor Scor 90
Compilator cpp-64 Status done
Runda Arhiva educationala Marime 0.77 kb
#include <bits/stdc++.h>

using namespace std;

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

int n,ok,nr,sol[20],sol_fin[20];

int isOK(int k)
{
    int i;
    for(i=1;i<k;i++)
    {
        if(sol[i]==sol[k])return 0;
        if(abs(sol[i]-sol[k])==abs(k-i))return 0;
    }
    return 1;
}

void beck(int k)
{
    int i;

    if(k==n+1)
    {
        nr++;
        if(ok==0)
        {
            for(i=1;i<k;i++)
                sol_fin[i]=sol[i];
            ok=1;
        }
    }
    else
    {
        for(i=1;i<=n;i++)
        {
            sol[k]=i;
            if(isOK(k))beck(k+1);
        }
    }
}

int main()
{
    f>>n;
    beck(1);

    for(int i=1;i<=n;i++)g<<sol_fin[i]<<" ";
    g<<'\n'<<nr;
    return 0;
}