Compilare: main.cpp: In function 'int numar()': main.cpp:22:13: warning: comparison of integer expressions of different signedness: 'int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 22 | while (i<s.size ()&&s[i]>='0'&&s[i]<='9') | ~^~~~~~~~~~ main.cpp: In function 'void expresie(std::bitset<160000>&)': main.cpp:33:14: warning: comparison of integer expressions of different signedness: 'int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 33 | while ((i<s.size ())&&s[i]=='+') | ~^~~~~~~~~~ main.cpp: In function 'void termen(std::bitset<160000>&)': main.cpp:45:14: warning: comparison of integer expressions of different signedness: 'int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 45 | while ((i<s.size ())&&s[i]=='*') | ~^~~~~~~~~~ main.cpp: In function 'void factor(std::bitset<160000>&)': main.cpp:63:24: warning: array subscript has type 'char' [-Wchar-subscripts] 63 | v=mul[frch[s[i]]]; | ^ main.cpp: In function 'int main()': main.cpp:90:16: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 90 | for (i=1; i<l.size (); i++) | ~^~~~~~~~~~ main.cpp:101:14: warning: array subscript has type 'char' [-Wchar-subscripts] 101 | frch[ch[i]]=nrch++; | ~~~~^ main.cpp:105:22: warning: array subscript has type 'char' [-Wchar-subscripts] 105 | frch[ch[i]]=nrch++; | ~~~~^ main.cpp:109:20: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 109 | for (j=0; j<el[i].size (); j++) | ~^~~~~~~~~~~~~~ main.cpp:110:27: warning: array subscript has type 'char' [-Wchar-subscripts] 110 | mul[frch[chc[i]]][fr[el[i][j]]]=1; | ~~~~~^