Cod sursa(job #1714023)

Utilizator Liviu_Ionut_MoantaMoanta Ionut Liviu Liviu_Ionut_Moanta Data 7 iunie 2016 09:44:29
Problema Problema Damelor Scor 100
Compilator cpp Status done
Runda Arhiva educationala Marime 0.82 kb
#include<fstream>
#include<bitset>
using namespace std;
ifstream fin("damesah.in");
ofstream fout("damesah.out");
int n,i,j,z,x[20];
bitset<14> c;
bitset<30> ds;
bitset<30> dp;
int sol;
void backl(int pas){
    if(pas>n){
        sol++;
        if(sol==1){
            for(i=1;i<=n;i++){
                fout<<x[i]<<" ";
            }
            fout<<"\n";
        }
    }
    else{
        for(int i=1;i<=n;i++){
            if(c[i]==0&&ds[i+pas]==0&&dp[i-pas+n]==0){
                c[i]=1;
                ds[i+pas]=1;
                dp[i-pas+n]=1;
                x[pas]=i;
                backl(pas+1);
                c[i]=0;
                ds[i+pas]=0;
                dp[i-pas+n]=0;
            }
        }
    }

}
int main(){
    fin>>n;
    backl(1);
    fout<<sol;
    return 0;
}