Compilare: main.cpp: In function 'int main()': main.cpp:19:21: warning: comparison of integer expressions of different signedness: 'int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 19 | for (i=0, j=1; j<A.length(); j++) | ~^~~~~~~~~~~ main.cpp:28:20: warning: comparison of integer expressions of different signedness: 'int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 28 | for (i=0, j=0;i<B.length();) | ~^~~~~~~~~~~ main.cpp:34:18: warning: comparison of integer expressions of different signedness: 'int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 34 | if (j==A.length()) j=vec[j-1], count++, rs.push_back(i-A.length()); | ~^~~~~~~~~~~~ main.cpp:41:22: warning: 'count' may be used uninitialized in this function [-Wmaybe-uninitialized] 41 | fout << count << "\n"; | ^~~~