Cod sursa(job #276429)
Utilizator | Data | 11 martie 2009 10:16:42 | |
---|---|---|---|
Problema | Generare de permutari | Scor | 0 |
Compilator | cpp | Status | done |
Runda | Arhiva educationala | Marime | 0.57 kb |
#include <stdio.h>
int S[20];
int i,k,n;
FILE *f = fopen("perm.in","r");
FILE *g = fopen("perm.out","w");
int cont(int k){
int i;
for (i=1;i<k;i++)
if (S[i]==S[k])
return 0;
return 1;
}
void sol(){
int i;
for (i=1;i<=n;i++)
fprintf(g,"%d ",S[i]);
fprintf(g,"\n");
}
int main(){
fscanf(f,"%d",&n);
fclose(f);
S[1] = 0;
k = 1;
while (k>0)
if (S[k]<n) {
S[k]++;
if (cont(k))
if (k==n)
sol();
else {
k++;
S[k] = 0;
}
} else
k--;
fclose(g);
return 0;
}