Compilare: main.cpp: In function 'int main()': main.cpp:61:12: warning: comparison of integer expressions of different signedness: 'int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 61 | while (i < s.size()) { | ~~^~~~~~~~~~ main.cpp:81:11: warning: comparison of integer expressions of different signedness: 'int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 81 | if (x <= s.size() / 3) | ~~^~~~~~~~~~~~~~~ main.cpp:92:21: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 92 | for (int i = 0; i < prefix.size(); i++) { | ~~^~~~~~~~~~~~~~~ main.cpp:98:15: warning: comparison of integer expressions of different signedness: 'int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 98 | while (dr < s.size() - prefix[i]) { In file included from main.cpp:5: main.cpp:100:17: warning: comparison of integer expressions of different signedness: 'int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 100 | assert(dr < s.size()); | ~~~^~~~~~~~~~ main.cpp:57:11: warning: unused variable 't1' [-Wunused-variable] 57 | clock_t t1 = clock(); | ^~