Cod sursa(job #256217)
| Utilizator | Data | 11 februarie 2009 13:00:35 | |
|---|---|---|---|
| Problema | Generare de permutari | Scor | 20 |
| Compilator | cpp | Status | done |
| Runda | Arhiva educationala | Marime | 0.52 kb |
#include<stdio.h>
int st[9],n;
int valid(int k,int st[])
{
int i;
for(i=1;i<k;i++)
if(st[k]==st[i]) return 0;
return 1;
}
void afis(int k)
{
int i;
for(i=1;i<=k;i++)
printf("%d", st[i]);
printf("\n");
}
void back(int k)
{
int x;
for(x=1;x<=n;x=x+1)
{
st[k]=x;
if(valid(k,st))
if(k==n) afis(k);
else back(k+1);
}
}
int main()
{
freopen("permutari.in","r",stdin);
freopen("permutari.out","w",stdout);
scanf("%d",&n);
back(1);
return 0;
}