Compilare: main.cpp: In member function 'void rollingHash::init(std::string)': main.cpp:17:24: warning: comparison of integer expressions of different signedness: 'int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 17 | for ( i = 1; i <= s.size(); i++ ) { | ~~^~~~~~~~~~~ main.cpp: In function 'int main()': main.cpp:84:28: warning: 'prevRank0' may be used uninitialized in this function [-Wmaybe-uninitialized] 84 | if ( i > 0 && !(suf[i].rank0 == prevRank0 && suf[i].rank1 == suf[i - 1].rank1) ) | ~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ main.cpp:69:16: note: 'prevRank0' was declared here 69 | int n, prevRank0, newRank0, nextInd, k, i; | ^~~~~~~~~