Cod sursa(job #1129090)

Utilizator Walrus21andrei Walrus21 Data 27 februarie 2014 20:07:27
Problema Generare de permutari Scor 100
Compilator cpp Status done
Runda Arhiva educationala Marime 0.49 kb
#include <stdio.h>
#define n 9

using namespace std;

FILE *f=fopen("permutari.in","r");
FILE *g=fopen("permutari.out","w");

int N,s[n];
bool bf[n];

void a()
{
    for(int i=1;i<=N;i++)
     fprintf(g,"%d ",s[i]);
    fprintf(g,"\n");
}

void b(int k)
{
    for(int i=1;i<=N;i++)
     if(!bf[i])
     {
         bf[i]=1; s[k]=i;
         if(k==N) a();
         else b(k+1);
         bf[i]=0;
     }
}

int main()
{
    fscanf(f,"%d",&N); b(1);
    return 0;
}