Cod sursa(job #3227327)

Utilizator andreea678Rusu Andreea andreea678 Data 29 aprilie 2024 17:16:06
Problema Combinari Scor 100
Compilator cpp-64 Status done
Runda Arhiva educationala Marime 0.78 kb
#include <iostream>
#include <fstream>
using namespace std;
ifstream fin("combinari.in");
ofstream fout("combinari.out");
int n, k;
int c[20];
void afis(int x){
    for (int j=1; j<=x; ++j){
        fout << c[j] << ' ';
    }
    fout << '\n';
}
bool OK(int x){
    for (int i=1; i<x; ++i){
        if (c[x]==c[i]){
            return false;
        }
    }
    if (x>1){
        if (c[x-1]>=c[x]){
            return false;
        }
    }
    return true;
}
void backtr(int x){
    for (int i=1; i<=n; ++i){
        c[x] = i;
        if (OK(x)){
            if (x==k){
                afis(x);
            }
            else {
                backtr(x+1);
            }
        }
    }
}
int main()
{
    fin >> n >> k;
    backtr(1);
    return 0;
}