Cod sursa(job #547461)
Utilizator | Costea Bogdan bogdan353 | Data | 6 martie 2011 13:07:51 |
---|---|---|---|
Problema | Generare de permutari | Scor | 100 |
Compilator | cpp | Status | done |
Runda | Arhiva educationala | Marime | 0.48 kb |
#include<iostream>
#include<fstream>
using namespace std;
int n,x[10];
ofstream g("permutari.out");
void afisare(int k)
{
for(int i=1;i<=n;i++)
g<<x[i]<<" ";
g<<"\n";
}
int valid(int k)
{
for(int i=1;i<k;i++)
if(x[k]==x[i]) return 0;
return 1;
}
void back(int k)
{
for(int i=1;i<=n;i++)
{
x[k]=i;
if(valid(k))
if(k==n) afisare(k);
else
back(k+1);
}
}
int main()
{
ifstream f("permutari.in");
f>>n;
back(1);
}