Compilare: user.cpp: In function ‘unsigned int rez(unsigned int, unsigned int, int)’: user.cpp:11:32: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] else if(L<(1U<<l)&&C>=(1<<l))return rez(L,C-(1<<l),l-1)+(1U<<l); ^ user.cpp:12:32: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] else if(C<(1U<<l)&&L>=(1<<l))return rez(L-(1<<l),C,l-1)+(1U<<l); ^ user.cpp: In function ‘int main()’: user.cpp:17:28: warning: format ‘%hd’ expects argument of type ‘short int*’, but argument 3 has type ‘unsigned int*’ [-Wformat=] fscanf(f,"%hd%hd",&L,&C); ^ user.cpp:17:28: warning: format ‘%hd’ expects argument of type ‘short int*’, but argument 4 has type ‘unsigned int*’ [-Wformat=] user.cpp:17:29: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(f,"%hd%hd",&L,&C); ^