Compilare: main.cpp: In function 'void build(int, int, int)': main.cpp:48:12: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::pair<int, int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare] 48 | while (i < aint[2 * nod][aux].size() && j < aint[2 * nod + 1][aux].size()) { | ~~^~~~~~~~~~~~~~~~~~~~~~~~~~~ main.cpp:48:45: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::pair<int, int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare] 48 | while (i < aint[2 * nod][aux].size() && j < aint[2 * nod + 1][aux].size()) { | ~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ main.cpp:56:12: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::pair<int, int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare] 56 | while (i < aint[2 * nod][aux].size()) | ~~^~~~~~~~~~~~~~~~~~~~~~~~~~~ main.cpp:58:12: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::pair<int, int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare] 58 | while (j < aint[2 * nod + 1][aux].size()) | ~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ main.cpp: In function 'void query(int, int, int, int)': main.cpp:68:12: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::pair<int, int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare] 68 | while (j < aint[nod][1].size() && aint[nod][1][j].first < p[i].first) { | ~~^~~~~~~~~~~~~~~~~~~~~ main.cpp:70:8: warning: unused variable 'k' [-Wunused-variable] 70 | int k = aint[nod][1][j].second; | ^ main.cpp:78:8: warning: unused variable 'k' [-Wunused-variable] 78 | int k = aint[nod][0][j].second; | ^