Compilare: main.cpp: In function 'int main()': main.cpp:21:23: 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 = 1; i < A.size(); i++) { | ~~^~~~~~~~~~ main.cpp:38:23: warning: comparison of integer expressions of different signedness: 'int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 38 | for (int i = 0; i < B.size(); i++) { | ~~^~~~~~~~~~ main.cpp:39:17: warning: comparison of integer expressions of different signedness: 'int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 39 | if (idx < A.size() && B[i] == A[idx]) { | ~~~~^~~~~~~~~~ main.cpp:41:21: warning: comparison of integer expressions of different signedness: 'int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 41 | if (idx == A.size()) { | ~~~~^~~~~~~~~~~ main.cpp:57:23: warning: comparison of integer expressions of different signedness: 'int' and 'long unsigned int' [-Wsign-compare] 57 | for (int i = 0; i < min(SOL_MAX, sol.size()); i++) { | ^