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Cod sursa(job #310171)
#include <stdio.h>
int sol[1000],DIMMAX;
void AFISEAZA()
{
int i;
for(i=1;i<=DIMMAX;i++)
printf("%d ",sol[i]);
printf("\n");
}
int COND(int k)
{
int i;
for(i=1;i<k;i++)
if(sol[i]==sol[k])
return 0;
return 1;
}
void BACK(int k)
{
int i;
for(i=1;i<=DIMMAX;i++)
{
sol[k]=i;
if( COND(k))
if(k==DIMMAX)
AFISEAZA();
else(BACK(k+1));
}
}
int main()
{
freopen("permutari.in","r",stdin);
freopen("permutari.out","w",stdout);
scanf("%d",&DIMMAX);
BACK(1);
return 0;
}