Compilare: user.c: In function ‘main’: user.c:59:11: warning: ignoring return value of ‘fscanf’, declared with attribute warn_unused_result [-Wunused-result] fscanf(fin, "%d%d%d" ,&p,&n,&m); ^ user.c:152:16: warning: ‘poz2’ may be used uninitialized in this function [-Wmaybe-uninitialized] fprintf(fout, "%d %d\n%c\n" ,poz1+1,poz2+1,cul+'a'); ^ user.c:152:16: warning: ‘poz1’ may be used uninitialized in this function [-Wmaybe-uninitialized] user.c:152:16: warning: ‘cul’ may be used uninitialized in this function [-Wmaybe-uninitialized]