Cod sursa(job #3141597)
Utilizator | Pavalache Albert AlbertPav | Data | 14 iulie 2023 18:13:27 |
---|---|---|---|
Problema | Generare de permutari | Scor | 100 |
Compilator | cpp-64 | Status | done |
Runda | Arhiva educationala | Marime | 0.61 kb |
#include <iostream>
#include <fstream>
#include <cmath>
using namespace std;
int n,x[11];
ifstream f("permutari.in");
ofstream g("permutari.out");
bool valid(int k)
{
for(int i=1; i<k; i++)
if(x[i]==x[k])
return 0;
return 1;
}
void afis()
{
for(int i=1; i<=n; i++)
g<<x[i]<<' ';
g<<'\n';
}
void backt(int k)
{
for(int i=1; i<=n; i++)
{
x[k]=i;
if(valid(k))
if(k==n)
afis();
else
backt(k+1);
}
}
int main()
{
f>>n;
backt(1);
return 0;
}