Compilare: main.cpp: In function 'void solve_lin(int)': main.cpp:133:23: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::pair<int, int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare] 133 | for (int i = 0; i < vp.size() + ql[lin].size(); i++) | ~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~ main.cpp:135:16: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::pair<int, int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare] 135 | if (i1 == vp.size()) | ~~~^~~~~~~~~~~~ main.cpp:137:21: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<query_lin>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 137 | else if (i2 == ql[lin].size()) | ~~~^~~~~~~~~~~~~~~~~ main.cpp:148:23: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 148 | for (int i = 0; i < vls.size(); i++) | ~~^~~~~~~~~~~~ main.cpp:152:23: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<query_lin>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 152 | for (int i = 0; i < ql[lin].size(); i++) | ~~^~~~~~~~~~~~~~~~ main.cpp:154:19: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::pair<int, int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare] 154 | while (i1 < vp.size() and mp[vp[i1].first] <= mp[ql[lin][i].v]) | ~~~^~~~~~~~~~~ main.cpp: In function 'void solve_all()': main.cpp:181:27: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<query_lin>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 181 | for (int j = 0; j < ql[i].size(); j++) | ~~^~~~~~~~~~~~~~