ecuatii.cpp: In function 'void expresie(char*, int&, int&)': ecuatii.cpp:41: error: 'inc' was not declared in this scope ecuatii.cpp:51: error: 'atoi' was not declared in this scope ecuatii.cpp:54: error: 'atoi' was not declared in this scope ecuatii.cpp:67: error: 'atoi' was not declared in this scope ecuatii.cpp:70: error: 'atoi' was not declared in this scope