Compilare: user.c: In function ‘main’: user.c:19:5: warning: ignoring return value of ‘fscanf’, declared with attribute warn_unused_result [-Wunused-result] fscanf(fin, "%d", &N); ^ user.c:54:5: warning: ‘fout’ may be used uninitialized in this function [-Wmaybe-uninitialized] fclose(fout); ^ user.c:48:14: warning: ‘X’ may be used uninitialized in this function [-Wmaybe-uninitialized] X++; ^