Cod sursa(job #957879)
Utilizator | Data | 6 iunie 2013 11:56:02 | |
---|---|---|---|
Problema | Generare de permutari | Scor | 100 |
Compilator | cpp | Status | done |
Runda | Arhiva educationala | Marime | 0.48 kb |
#include<fstream>
using namespace std;
ifstream in("permutari.in");
ofstream out("permutari.out");
int n,v[100];
void afisare(){
for(int i=1;i<=n;i++) out<<v[i]<<' ';
out<<'\n';
}
int valid(int k){
for(int i=1;i<k;i++) if(v[k]==v[i]) return 0;
return 1;
}
void back(int k){
if(k>n) afisare();
else{
for(int i=1;i<=n;i++){
v[k]=i;
if(valid(k)) back(k+1);
}
}
}
int main(){
in>>n;
back(1);
return 0;
}