Cod sursa(job #263803)
Utilizator | Zlate Bogdan zlatebogdan | Data | 20 februarie 2009 20:16:28 |
---|---|---|---|
Problema | Generare de permutari | Scor | 20 |
Compilator | cpp | Status | done |
Runda | Arhiva educationala | Marime | 0.5 kb |
#include<stdio.h>
int n,v[10];
void afisare()
{
int i;
for(i=1;i<=n;++i)
printf("%d ",v[i]);
}
char valid(int x)
{
int i;
for(i=1;i<x;++i)
if (v[i]==v[x])
return 0;
return 1;
}
void back(int x)
{
int i;
if(x==n+1)
{
afisare();
printf("\n");
return;
}
for (i=1;i<=n;++i)
{
v[i]=i;
if(valid(i))
back(x+1);
}
}
int main()
{
freopen("permutari.in","r",stdin);
freopen("permutari.out","w",stdout);
scanf("%d",&n);
back(1);
return 0;
}