Compilare: main.cpp: In function 'int main()': main.cpp:105:26: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 105 | if (ri[v[r]] != lista[v[r]].size() - 1 && lista[v[r]][ri[v[r]]] == r) | ~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~ main.cpp:114:26: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 114 | if (le[v[l]] != lista[v[l]].size() - 1 && lista[v[l]][le[v[l]]] < l) | ~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~ main.cpp:47:33: warning: unused variable 'j' [-Wunused-variable] 47 | int n, q, i, val = 0, l, r, j; | ^