Compilare: user.cpp: In function ‘int CautBin(int)’: user.cpp:27:19: warning: unused variable ‘res’ [-Wunused-variable] int st,dr,mid,res; ^ user.cpp: In function ‘int main()’: user.cpp:52:59: warning: array subscript has type ‘char’ [-Wchar-subscripts] for(j = 0; j < 5; ++j) cod = cod * 37 + tab[ X[j] ]; ^ user.cpp:62:65: warning: array subscript has type ‘char’ [-Wchar-subscripts] for(cod = j = 0; j < 5; ++j) cod = cod * 37 + tab[ X[j] ]; ^ user.cpp:67:33: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(j = 5; j < X.length(); ++j) ^ user.cpp:69:42: warning: array subscript has type ‘char’ [-Wchar-subscripts] cod = (cod - B * tab[ X[j-5] ]) * 37 + tab[ X[j] ]; ^ user.cpp:69:62: warning: array subscript has type ‘char’ [-Wchar-subscripts] cod = (cod - B * tab[ X[j-5] ]) * 37 + tab[ X[j] ]; ^ user.cpp:77:65: warning: array subscript has type ‘char’ [-Wchar-subscripts] for(cod = j = 0; j < 5; ++j) cod = cod * 37 + tab[ X[j] ]; ^ user.cpp:81:33: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(j = 5; j < X.length(); ++j) ^ user.cpp:83:42: warning: array subscript has type ‘char’ [-Wchar-subscripts] cod = (cod - B * tab[ X[j-5] ]) * 37 + tab[ X[j] ]; ^ user.cpp:83:62: warning: array subscript has type ‘char’ [-Wchar-subscripts] cod = (cod - B * tab[ X[j-5] ]) * 37 + tab[ X[j] ]; ^