Compilare: user.cpp: In function ‘int main()’: user.cpp:15:31: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(fi, "%d%d", &n, &k); ^ user.cpp:18:30: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(fi, "%d", &nr); ^ user.cpp:36:43: warning: ‘pozmax’ may be used uninitialized in this function [-Wmaybe-uninitialized] fprintf(fo, "%d %d %d", pozmax, pozmax+k-1, bmax); ^