Compilare: main.cpp: In function 'int main()': main.cpp:89:23: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<query>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 89 | for(int x=1; x<v[b].size(); ++x) | ~^~~~~~~~~~~~ main.cpp:68:13: warning: unused variable 'l' [-Wunused-variable] 68 | int l=(b-1)*bucklen+1; | ^ main.cpp:69:13: warning: unused variable 'r' [-Wunused-variable] 69 | int r=b*bucklen; | ^