Compilare: user.cpp: In function ‘int main()’: user.cpp:20:26: warning: format ‘%hd’ expects argument of type ‘short int*’, but argument 3 has type ‘int*’ [-Wformat=] fscanf(IN,"%hd%hd",&N,&M); ^ user.cpp:20:26: warning: format ‘%hd’ expects argument of type ‘short int*’, but argument 4 has type ‘int*’ [-Wformat=] user.cpp:23:30: warning: format ‘%hd’ expects argument of type ‘short int*’, but argument 3 has type ‘unsigned char*’ [-Wformat=] fscanf(IN,"%hd",&Mat[i][j]); ^ user.cpp:20:27: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(IN,"%hd%hd",&N,&M); ^ user.cpp:23:31: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(IN,"%hd",&Mat[i][j]); ^