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Cod sursa(job #489933)
#include<iostream.h>
#include <fstream.h>
ifstream f("permutari.in");
ofstream g("permutari.out");
int x[100],n,k,m;
int cont (int k){
int i;
for (i=1;i<k;i++)
if(x[i]==x[k])
return 0;
return 1;
}
void tipar (){
for(int i=1;i<=n;i++)
g<<x[i]<<" ";
g<<"\n";
}
int main (){
f>>n;
k=1;
x[1]=0;
while (k!=0)
if (x[k]<n){
x[k]++;
if (cont(k))
if(k==n)
tipar ();
else{
k++;
x[k]=0;}
}
else
k--;
f.close();
g.close();
return 0;
}