Compilare: user.c: In function ‘main’: user.c:27:13: warning: unused variable ‘i’ [-Wunused-variable] int n,j,i,x,m,poz,c; ^ user.c:28:11: warning: ignoring return value of ‘fscanf’, declared with attribute warn_unused_result [-Wunused-result] fscanf(fin,"%d",&n); ^ user.c:30:13: warning: ignoring return value of ‘fscanf’, declared with attribute warn_unused_result [-Wunused-result] fscanf(fin,"%d",&v[j]); ^ user.c:31:11: warning: ignoring return value of ‘fscanf’, declared with attribute warn_unused_result [-Wunused-result] fscanf(fin,"%d",&m); ^ user.c:34:13: warning: ignoring return value of ‘fscanf’, declared with attribute warn_unused_result [-Wunused-result] fscanf(fin,"%d%d",&c,&x); ^ user.c: In function ‘functie’: user.c:20:3: warning: ‘ans’ may be used uninitialized in this function [-Wmaybe-uninitialized] return ans; ^ user.c: In function ‘main’: user.c:48:18: warning: ‘ans’ may be used uninitialized in this function [-Wmaybe-uninitialized] fprintf(fout,"%d\n",poz+1); ^ user.c:38:13: warning: ‘ans’ may be used uninitialized in this function [-Wmaybe-uninitialized] if(v[poz]==x) ^