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Cod sursa(job #659582)
#include <stdio.h>
#include <stdlib.h>
#include <math.h>
int v[100],n,pus[100];
void afisare()
{
int i;
for(i=0;i<n;i++)
{
printf("%i ", v[i]);
}
printf("\n");
}
void back(int k)
{
int i;
for(i=1;i<=n;i++)
{
if(!pus[i])
{
v[k]=i;
pus[i]=1;
if(k==n-1)
{
afisare();
}else
{
back(k+1);
}
pus[i]=0;
}
}
}
int main()
{
freopen("permutari.in","r",stdin);
freopen("permutari.out","w",stdout);
int i;
scanf("%i", &n);
for(i=0;i<n;i++)
{
v[i]=0;
}
for(i=0;i<100;i++)
{
pus[i]=0;
}
back(0);
scanf("%i", &i);
return 0;
}