Verifica 23-04-2009

#include <stdio.h>
FILE *f1;
FILE *f2;
int i=0;
int swc;
int j=0;
int u=0;
int ar[90];
void carica(){
     f1=fopen("numeri.txt","r");
     fscanf(f1,"%d",&ar[0]);
     while(ar[i]!=999){
     i++;
     fscanf(f1,"%d",&ar[i]);
     }
     u=i;
     fclose(f1);
}
void stampa(){
     for(i=0;i<u;i++){
     printf("%d\n",ar[i]);
     }
}
void scambio(int a, int b){
     int comodo;
     comodo=ar[a];
     ar[a]=ar[b];
     ar[b]=comodo;
     }

void ordina(){
     do{
        swc=0;
        for(i=0;i<u-1;i++){  
        j=i+1;
               if(ar[i]>ar[j]){
                         scambio(i,j);
                         swc=1;
                         }
        }            
        }              
     while(swc==1);       
}
void copia(){
     f2=fopen("ordinati.txt","w");
     for(i=0;i<u;i++){
                       fprintf(f2,"%d\n",ar[i]);
     }
     fclose(f2);
}

int main()
{
carica();
stampa();
printf("-----------------------\n");
ordina();
stampa();
copia();
}