Compilare: main.cpp: In member function 'matrix& matrix::operator*(const matrix&)': main.cpp:35:11: warning: reference to local variable 'raspuns' returned [-Wreturn-local-addr] matrix raspuns; ^~~~~~~ main.cpp: In member function 'matrix& matrix::operator%(int)': main.cpp:51:12: warning: reference to local variable 'raspuns' returned [-Wreturn-local-addr] matrix raspuns; ^~~~~~~ main.cpp: In member function 'matrix& matrix::operator^(long long int)': main.cpp:76:12: warning: reference to local variable 'rez' returned [-Wreturn-local-addr] matrix rez; ^~~