Cod sursa(job #1947539)

Utilizator ScarymovieMocanu Alexandru Scarymovie Data 31 martie 2017 00:34:25
Problema Generare de permutari Scor 100
Compilator cpp Status done
Runda Arhiva educationala Marime 0.6 kb
#include <fstream>
#include<vector>
using namespace std;
vector<int> st;
int n,k;
ifstream f("permutari.in");
ofstream g("permutari.out");
int valid(int niv)
{
    for(int i=1;i<niv;i++)
        if(st[i]==st[niv]) return 0;
    return 1;
}
void afisare()
{
    for(int i=1;i<=n;i++) g<<st[i]<<' ';
    g<<'\n';
}
int main()
{
    f>>n;k=1;st.resize(n+1);
    while(k)
        if(st[k]<n)
            {
                st[k]++;
                if(valid(k))
                    if(k==n) afisare();
                    else {k++;st[k]=0;}
            }
        else k--;
    return 0;
}