Compilare: main.cpp: In function 'void radix(std::__cxx11::string&, std::vector<int>&)': main.cpp:13:20: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (i=0; i<s.size(); i++){ ~^~~~~~~~~ main.cpp:15:19: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] if (p >= s.size()) ~~^~~~~~~~~~~ main.cpp:22:24: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (j=0; j<pos[i].size(); j++) ~^~~~~~~~~~~~~~ main.cpp: In function 'void suffix_array(std::__cxx11::string&, std::vector<int>&)': main.cpp:43:16: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (i=0; i<s.size(); i++){ ~^~~~~~~~~ main.cpp:47:22: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (j=1; (1<<j) <= s.size(); j++){ ~~~~~~~^~~~~~~~~~~ main.cpp:48:20: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (i=0; i<s.size(); i++){ ~^~~~~~~~~ main.cpp:49:43: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] if (dp[j-1][i].ind + (1<<j)-1 >= s.size()) ~~~~~~~~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~ main.cpp:56:20: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (i=0; i<s.size(); i++){ ~^~~~~~~~~ main.cpp: In function 'void update(std::vector<int>&, int, int)': main.cpp:68:16: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] while (pos < bit.size()){ ~~~~^~~~~~~~~~~~ main.cpp: In function 'int binarySearch(std::vector<int>&, int, std::vector<bool>&)': main.cpp:84:50: warning: unused variable 'q2' [-Wunused-variable] int left = 0, right = bit.size()-1, mid, q1, q2; ^~ main.cpp: In function 'int main()': main.cpp:123:20: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (i=0; i<s.size(); i++) ~^~~~~~~~~ main.cpp:141:20: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (i=0; i<suffix.size(); i++) ~^~~~~~~~~~~~~~ main.cpp:146:24: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (; crt < s.size()-queries[q].len+1; crt++){ ~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~