Cod sursa(job #2323010)
Utilizator | Costea Calin calin9819 | Data | 18 ianuarie 2019 18:06:02 |
---|---|---|---|
Problema | Generare de permutari | Scor | 100 |
Compilator | cpp-64 | Status | done |
Runda | Arhiva educationala | Marime | 0.64 kb |
#include <iostream>
#include <fstream>
using namespace std;
int x[10], n;
ifstream f("permutari.in");
ofstream g("permutari.out");
void afisare() {
int i;
for(i = 1; i <= n; i++)
g << x[i] << ' ';
g << '\n';
}
int valid(int k) {
int i;
for(i = 1; i <= k - 1; i++)
if (x[k] == x[i])
return 0;
return 1;
}
void bt(int k) {
int i;
for(i = 1; i <= n; i++) {
x[k] = i;
if (valid(k))
if (k == n)
afisare();
else
bt(k + 1);
}
}
int main() {
f >> n;
bt(1);
return 0;
}