Compilare: main.cpp: In function 'int main()': main.cpp:15:9: warning: this 'while' clause does not guard... [-Wmisleading-indentation] 15 | while(cin>>k); | ^~~~~ main.cpp:16:9: note: ...this statement, but the latter is misleadingly indented as if it were guarded by the 'while' 16 | { | ^ main.cpp:21:22: warning: comparison of integer expressions of different signedness: 'int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 21 | for(int i=0;i<s.size();i++) | ~^~~~~~~~~