Cod sursa(job #719922)
Utilizator | heghedus razvan raazvvann | Data | 22 martie 2012 10:37:19 |
---|---|---|---|
Problema | Generare de permutari | Scor | 100 |
Compilator | cpp | Status | done |
Runda | Arhiva educationala | Marime | 0.5 kb |
#include <iostream>
#include <fstream>
using namespace std;
ifstream f("permutari.in");
ofstream g("permutari.out");
int v[10],n;
void tiparire()
{
for(int i=1;i<=n;i++)
g<<v[i]<<" ";
g<<"\n";
}
bool valid(int p)
{
for(int i=1;i<p;i++)
if(v[i]==v[p]) return false;
return true;
}
int back(int p)
{
if(p>n)
tiparire();
else
{
for(int i=1;i<=n;i++)
{
v[p]=i;
if(valid(p)==true)
back(p+1);
}
}
return 0;
}
int main()
{
f>>n;
back(1);
}