Cod sursa(job #508012)
Utilizator | Data | 7 decembrie 2010 12:43:03 | |
---|---|---|---|
Problema | Generare de permutari | Scor | 100 |
Compilator | cpp | Status | done |
Runda | Arhiva educationala | Marime | 0.49 kb |
#include<stdio.h>
FILE *f=fopen("permutari.in","r");
FILE *g=fopen("permutari.out","w");
int n,x[15];
void tipar(int k){
int i;
for (i=1;i<=k;i++)
fprintf(g,"%d ",x[i]);
fprintf(g,"\n");
}
int cont(int k){
int i;
for (i=1;i<=k-1;i++)
if (x[k]==x[i])
return 0;
return 1;
}
void back(int k){
int i;
for (i=1;i<=n;i++){
x[k]=i;
if (cont(k))
if (k==n)
tipar(k);
else
back(k+1);
}
}
int main(){
fscanf(f,"%d",&n);
back(1);
return 0;
}