Eroare de compilare: main.cpp: In member function 'InParser& InParser::operator>>(int&)': main.cpp:39:17: error: 'isdigit' was not declared in this scope 39 | while (!isdigit(c = read_ch()) && c != '-'); | ^~~~~~~ main.cpp:47:16: error: 'isdigit' was not declared in this scope 47 | while (isdigit(c = read_ch())) { | ^~~~~~~ main.cpp: In member function 'InParser& InParser::operator>>(long long int&)': main.cpp:57:17: error: 'isdigit' was not declared in this scope 57 | while (!isdigit(c = read_ch()) && c != '-'); | ^~~~~~~ main.cpp:65:16: error: 'isdigit' was not declared in this scope 65 | while (isdigit(c = read_ch())) { | ^~~~~~~ Non zero exit status: 1