Compilare: user.cpp: In function ‘void read()’: user.cpp:32: warning: format ‘%lld’ expects type ‘long long int*’, but argument 2 has type ‘int*’ user.cpp:40: warning: format ‘%lld’ expects type ‘long long int*’, but argument 8 has type ‘int*’ user.cpp:31: warning: unused variable ‘l’ user.cpp:32: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result user.cpp:40: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result user.cpp: In function ‘int main()’: user.cpp:66: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result user.cpp:67: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result user.cpp: In function ‘void matmult(int (*)[3], int (*)[3])’: user.cpp:14: warning: array subscript is above array bounds user.cpp: In function ‘void read()’: user.cpp:38: warning: array subscript is above array bounds user.cpp:38: warning: array subscript is above array bounds