Compilare: user.c: In function ‘main’: user.c:162:11: warning: ignoring return value of ‘fscanf’, declared with attribute warn_unused_result [-Wunused-result] fscanf(fin, "%d%d", &n, &q); ^ user.c:164:15: warning: ignoring return value of ‘fscanf’, declared with attribute warn_unused_result [-Wunused-result] fscanf(fin, "%d", &v[i]); ^ user.c:176:15: warning: ignoring return value of ‘fscanf’, declared with attribute warn_unused_result [-Wunused-result] fscanf(fin, "%d", &a); ^ user.c:112:19: warning: ‘dr’ may be used uninitialized in this function [-Wmaybe-uninitialized] sterge(pozheap[dr]); ^ user.c:81:16: note: ‘dr’ was declared here int x, st, dr, eu; ^