Compilare: main.cpp: In function 'int main()': main.cpp:22:18: warning: comparison of integer expressions of different signedness: 'int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 22 | for(int i=0;i<p.size();i++) | ~^~~~~~~~~ main.cpp:23:16: warning: array subscript has type 'char' [-Wchar-subscripts] 23 | bc[p[i]]=i; | ^ main.cpp:67:48: warning: array subscript has type 'char' [-Wchar-subscripts] 67 | int shiftbc=m-k-1-bc[t[i+m-k-1]]; | ^ main.cpp:75:44: warning: array subscript has type 'char' [-Wchar-subscripts] 75 | int shiftbc=m-k-1-bc[t[i+m-k-1]]; | ^ main.cpp:52:9: warning: unused variable 'lasti' [-Wunused-variable] 52 | int lasti=-1; | ^~~~~ main.cpp:53:9: warning: unused variable 'cnt' [-Wunused-variable] 53 | int cnt=0; | ^~~