Compilare: main.cpp: In member function 'int SuffixArray::lcpre(int, int)': main.cpp:21:39: warning: comparison of integer expressions of different signedness: 'int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 21 | if(max(p1, p2) + (1 << k) < cuv.size() && Ord[k][p1] == Ord[k][p2]) { | ~~~~~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~ main.cpp: In constructor 'SuffixArray::SuffixArray(std::string)': main.cpp:30:26: warning: comparison of integer expressions of different signedness: 'int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 30 | for(int i = 0; i < cuv.size(); ++i) Ord[0][i] = cuv[i]; | ~~^~~~~~~~~~~~ main.cpp:35:30: warning: comparison of integer expressions of different signedness: 'int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 35 | for(int i = 0; i < cuv.size(); ++i) { | ~~^~~~~~~~~~~~ main.cpp:37:46: warning: comparison of integer expressions of different signedness: 'int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 37 | ord2 = ((i + (1 << (k - 1))) < cuv.size()) ? Ord[k - 1][(i + (1 << (k - 1)))] : -1; | ~~~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~ main.cpp:43:22: warning: structured bindings only available with '-std=c++17' or '-std=gnu++17' 43 | for(auto [o1, o2, ind] : Val) { | ^ main.cpp:55:26: warning: comparison of integer expressions of different signedness: 'int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 55 | for(int i = 0; i < cuv.size(); ++i) { | ~~^~~~~~~~~~~~ main.cpp:62:26: warning: comparison of integer expressions of different signedness: 'int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 62 | for(int i = 0; i < cuv.size() - 1; ++i) LCP.push_back(lcpre(Cresc[i].first, Cresc[i + 1].first)); | ~~^~~~~~~~~~~~~~~~ main.cpp:31:25: warning: unused variable 'id' [-Wunused-variable] 31 | int ord1, ord2, id; | ^~ main.cpp: In function 'std::vector<int> solve(SuffixArray&)': main.cpp:115:22: warning: comparison of integer expressions of different signedness: 'int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 115 | for(int i = 0; i < S.cuv.size() - 1; ++i) { | ~~^~~~~~~~~~~~~~~~~~ main.cpp:130:22: warning: comparison of integer expressions of different signedness: 'int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 130 | for(int i = 0; i < S.cuv.size() - 1; ++i){ | ~~^~~~~~~~~~~~~~~~~~