Compilare: main.cpp: In function 'int main()': main.cpp:14:18: warning: comparison of integer expressions of different signedness: 'int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 14 | while (i < S.length() && j < T.length()) | ~~^~~~~~~~~~~~ main.cpp:14:36: warning: comparison of integer expressions of different signedness: 'int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 14 | while (i < S.length() && j < T.length()) | ~~^~~~~~~~~~~~ main.cpp:16:23: warning: comparison of integer expressions of different signedness: 'int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 16 | if (j + 1 < T.length() && T[j] == T[j+1] && S[i] == T[j] && S[i] != ' ') | ~~~~~~^~~~~~~~~~~~ main.cpp:19:27: warning: comparison of integer expressions of different signedness: 'int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 19 | if (i + 1 == S.length() || S[i+1] != S[i]) | ~~~~~~^~~~~~~~~~~~~