Cod sursa(job #2765312)
Utilizator | Data | 26 iulie 2021 12:41:00 | |
---|---|---|---|
Problema | Generare de permutari | Scor | 100 |
Compilator | cpp-64 | Status | done |
Runda | Arhiva educationala | Marime | 0.61 kb |
#include <iostream>
#include <fstream>
using namespace std;
ifstream f("permutari.in");
ofstream g("permutari.out");
int n , x[100];
void afis(int k){
for(int i = 1 ; i <= k ; i ++)
g << x[i] << ' ';
g << '\n';
}
bool valid(int k)
{
for(int i = 1 ; i < k ; i ++)
if(x[i] == x[k])
return 0;
return 1;
}
void bt(int k)
{
if(k<=n)
for(int i=1;i<=n;i++)
{
x[k]=i;
if(valid(k)==1)
bt(k+1);
}
else
afis(k-1);
}
int main(){
f >> n;
bt(1);
return 0;
}