Cod sursa(job #1104251)

Utilizator andreiblaj17Andrei Blaj andreiblaj17 Data 10 februarie 2014 17:10:23
Problema Generare de permutari Scor 20
Compilator cpp Status done
Runda Arhiva educationala Marime 0.56 kb
#include <iostream>
#include <fstream>
#define nmax 9
using namespace std;

ifstream in("permutari.in");
ofstream out("permutari.out");

int n,k;
short st[nmax];

void w(){
    for (int j=1; j<=n; j++)
        out << st[j] << " ";
    out << endl;
}

bool check(int k){
    for (int i=1; i<k; i++)
        if (st[i]==st[k]) return false;
    return true;
}

void back(int k){
    for (int i=1; i<=n; i++){
        st[k]=1;
        if (check(k)){
            if (k==n) w();
            else back(k+1);
        }
    }
}

int main(){
    in >> n;
    back(1);
    
    return 0;
}