Cod sursa(job #1519660)
Utilizator | Cosnean Alexandru alex.kosnean97 | Data | 7 noiembrie 2015 17:58:33 |
---|---|---|---|
Problema | Generare de permutari | Scor | 100 |
Compilator | cpp | Status | done |
Runda | Arhiva educationala | Marime | 0.49 kb |
#include<fstream>
using namespace std;
ifstream fin("permutari.in");
ofstream fout("permutari.out");
int a[50],n;
void tipareste()
{
for(int i=1;i<=n;i++)
fout<<a[i]<<' ';
fout<<'\n';
}
int valid(int k)
{
int i;
for(i=1;i<k;i++)
if(a[i]==a[k]) return(0);
return 1;
}
void back(int i)
{
int j;
for(j=1;j<=n;j++) { a[i]=j; if(valid(i)==1) if(i==n) tipareste(); else back(i+1); }
}
int main()
{
fin>>n;
back(1);
return 0;
}