Compilare: main.cpp: In function 'int main()': main.cpp:20:14: warning: comparison of integer expressions of different signedness: 'int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 20 | for(j=0;j<s2.size();j++) | ~^~~~~~~~~~ main.cpp:24:27: warning: comparison of integer expressions of different signedness: 'int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 24 | if(s2[j]=='*' || j==s2.size()-1) | ~^~~~~~~~~~~~~ main.cpp:31:22: warning: comparison of integer expressions of different signedness: 'int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 31 | for(i=1;i<s.size();i++) | ~^~~~~~~~~ main.cpp:38:21: warning: comparison of integer expressions of different signedness: 'int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 38 | if(k==sb.size() && i-(int)sb.size()>ant) | ~^~~~~~~~~~~ main.cpp:14:20: warning: variable 'nr' set but not used [-Wunused-but-set-variable] 14 | int n,m,j,i,st,nr,dr,k,ant; | ^~