Compilare: main.cpp: In function 'int main()': main.cpp:67:19: warning: comparison of integer expressions of different signedness: 'int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 67 | for(i=0; i<c.size(); i++) | ~^~~~~~~~~ main.cpp:69:17: warning: comparison of integer expressions of different signedness: 'int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 69 | if(i>=a.size()) | ~^~~~~~~~~~ main.cpp:73:17: warning: comparison of integer expressions of different signedness: 'int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 73 | if(i>=b.size()) | ~^~~~~~~~~~ main.cpp:83:19: warning: comparison of integer expressions of different signedness: 'int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 83 | for(i=0; i<c.size(); i++) | ~^~~~~~~~~ main.cpp:147:25: warning: comparison of integer expressions of different signedness: 'int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 147 | if(i==c.size()-1) | ~^~~~~~~~~~~~ main.cpp:232:25: warning: comparison of integer expressions of different signedness: 'int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 232 | if(i==c.size()-1) | ~^~~~~~~~~~~~ main.cpp:52:9: warning: unused variable 'n' [-Wunused-variable] 52 | int n,i,j,val1,val2,val3,minim,maxim,t,op; | ^ main.cpp:52:13: warning: unused variable 'j' [-Wunused-variable] 52 | int n,i,j,val1,val2,val3,minim,maxim,t,op; | ^