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- #include <bits/stdc++.h>
- #define N 105
- using namespace std;
- ifstream fin("permutari.in");
- ofstream fout("permutari.out");
- int st[N],viz[N],n;
- void Afisare(int k)
- {
- for(int i=1; i<=k; i++)
- fout<<st[i]<<' ';
- fout<<'\n';
- }
- ///bool Valid(int k){ return 1;} ///conditiile interne
- void Back(int k)
- {
- int i;
- for(i=1; i<=n; i++)
- if(viz[i]==0)
- {
- st[k]=i;
- viz[i]=1;
- ///if(Valid(k))
- if(k==n) Afisare(k);
- else Back(k+1);
- viz[i]=0;
- }
- }
- int main()
- {
- fin>>n;
- Back(1);
- return 0;
- }
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