Cod sursa(job #603161)
Utilizator | FMI - Balauru Paul paul24090 | Data | 14 iulie 2011 21:13:39 |
---|---|---|---|
Problema | Generare de permutari | Scor | 100 |
Compilator | cpp | Status | done |
Runda | Arhiva educationala | Marime | 0.52 kb |
#include <fstream>
using namespace std;
ifstream fi("permutari.in");
ofstream fo("permutari.out");
int n,a[100];
void citire(){
fi>>n;
fi.close();
}
int verif(int k){
for(int i=1;i<k;i++)
if(a[i]==a[k])
return 0;
return 1;
}
void afisare(){
for(int i=1;i<=n;i++)
fo<<a[i]<<" ";
fo<<'\n';
}
void back(int k){
if(k>n)
afisare();
else
for(int i=1;i<=n;i++){
a[k]=i;
if(verif(k))
back(k+1);
}
}
int main(){
citire();
back(1);
fo.close();
return 0;
}