Cod sursa(job #359861)

Utilizator petroMilut Petronela petro Data 28 octombrie 2009 15:59:20
Problema Combinari Scor 100
Compilator cpp Status done
Runda Arhiva educationala Marime 0.56 kb
#include<stdio.h>
FILE *f=fopen("combinari.in","r");
FILE *g=fopen("combinari.out","w");
int n,p,st[20];

int valid(int k)
{
	int i;
	for(i=1;i<=k-1;i++)
		if(st[k]==st[i]) return 0;
	
	if(st[k]<st[k-1] && k>1) return 0;
	return 1;
}

void afis()
{
	int i;
	for(i=1;i<=p;i++)
		fprintf(g,"%d ",st[i]);
	fprintf(g,"\n");
}

void bkt(int k)
{
	int i;
	for(i=1;i<=n-p+k;i++)
	{
		st[k]=i;
		if(valid(k)) if(k==p) afis();
		             else bkt(k+1);
	}
}

int main()
{
	fscanf(f,"%d%d",&n,&p);
	bkt(1);
	fclose(f);
	fclose(g);
	return 0;
}