Compilare: user.cpp: In function ‘void print_matrix(long long int (*)[3])’: user.cpp:51: warning: format ‘%d’ expects type ‘int’, but argument 2 has type ‘long long int’ user.cpp: In function ‘int main(int, char**)’: user.cpp:79: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result user.cpp:99: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result user.cpp:104: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result user.cpp:106: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result