Compilare: main.cpp: In function 'int scad()': main.cpp:97:18: warning: comparison of integer expressions of different signedness: 'int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 97 | for(int i=1;i<=n.length();i++) | ~^~~~~~~~~~~~ main.cpp: In function 'int main()': main.cpp:193:18: warning: comparison of integer expressions of different signedness: 'int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 193 | for(int i=1;i<=n.length();i++) | ~^~~~~~~~~~~~ main.cpp: In function 'int prod()': main.cpp:50:13: warning: 'ca' may be used uninitialized [-Wmaybe-uninitialized] 50 | b[i]=c[i]; | ~~~~^~~~~ main.cpp:23:9: note: 'ca' was declared here 23 | int ca; | ^~