Cod sursa(job #1916505)

Utilizator SaltimbanculAlex Lazar Saltimbancul Data 9 martie 2017 09:38:56
Problema Generare de permutari Scor 0
Compilator cpp Status done
Runda Arhiva educationala Marime 1.33 kb
#include <fstream>
using namespace std;
ifstream fin("permutari.in");
ofstream fout("permutari.out");
int n,v[10];
void write()
{
    for(int i=1;i<=n;i++)
        fout<<v[i]<<" ";
    fout<<'\n';#include <fstream>
using namespace std;
ifstream fin("suma5.in");
ofstream fout("suma5.out");
int n,i,v[65000],a[60][60][60],niv,j,k;
int nivel(int n)
{
    int i=1,niv=0;
    while(n>0)
    {
        n=n-i*i;
        i++;
        niv++;
    }
    return niv;
}
void minim()
{
    for(i=niv-1;i>=1;i--)
    {
        for(j=1;j<=i;j++)
            for(k=1;k<=i;k++)
                a[i][j][k]=a[i][j][k]+min(min(a[i+1][j][k],a[i+1][j+1][k]),min(a[i+1][j][k+1],a[i+1][j+1][k+1]));
    }
}
int main()
{
    fin>>n;
    niv=nivel(n);
    fout<<niv<<" ";
    for(i=1;i<=niv;i++)
    {
        for(j=1;j<=i;j++)
        {
            for(k=1;k<=i;k++)
                fin>>a[i][j][k];
        }
    }
    minim();
    fout<<a[1][1][1];
    return 0;
}

}
bool valid(int k)
{
    for(int i=1;i<k;i++)
        if(v[i]==v[k])
            return false;
    return true;
}
void backtrack(int k)
{
    for(int i=1;i<=n;i++)
    {
        v[k]=i;
        if(valid(k))
            if(k==n) write();
            else backtrack(k+1);
    }
}
int main()
{
    fin>>n;
    backtrack(1);
    return 0;
}