Cod sursa(job #2107645)
Utilizator | Data | 17 ianuarie 2018 16:48:27 | |
---|---|---|---|
Problema | Generare de permutari | Scor | 100 |
Compilator | cpp | Status | done |
Runda | Arhiva educationala | Marime | 0.7 kb |
#include <bits/stdc++.h>
using namespace std;
int i,n,len;
int a[100],b[100];
ifstream fin("permutari.in");
ofstream fout("permutari.out");
void backt(int k,int len)
{
fout.sync_with_stdio(false);
if(k-1 == len)
{
for(int i = 1; i <= len;++i)
fout<<a[i]<<" ";
fout<<'\n';
}
else
{
for(int i = 1; i <= len; ++i)
if(!b[i])
{
a[k] = i;
b[i] = 1;
backt(k+1,len);
b[i] = 0;
}
}
}
int main()
{
fin.sync_with_stdio(false);
fin>>n;
backt(1,n);
fin.close();
fout.close();
return 0;
}