Cod sursa(job #160085)

Utilizator Ionutz_LalaLala Marius Ionut Ionutz_Lala Data 14 martie 2008 18:35:44
Problema Generare de permutari Scor 100
Compilator cpp Status done
Runda Arhiva educationala Marime 0.46 kb
#include<stdio.h>
FILE *f=fopen("permutari.in","r"),*g=fopen("permutari.out","w");
int st[10],n;
void tipar()
{
 for(int i=1;i<=n;i++)
   fprintf(g,"%d ",st[i]);
 fprintf(g,"\n");
}
void bktr(int p)
{
 int ok,i;
 for(int pval=1;pval<=n;pval++)
 {
   st[p]=pval;
   ok=1;
   for(i=1;i<p;i++)
     if(st[i]==st[p]) {ok=0;break;}
   if(ok)
     if(p==n) tipar();
     else bktr(p+1);
 }
}
int main()
{
 fscanf(f,"%d",&n);
 bktr(1);
 return 0;
}