Compilare: main.cpp: In function 'void solve_lin(int)': main.cpp:72:23: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<query_lin>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 72 | for (int i = 0; i < ql[lin].size(); i++) | ~~^~~~~~~~~~~~~~~~ main.cpp:76:23: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 76 | for (int i = 0; i < vls.size(); i++) | ~~^~~~~~~~~~~~ main.cpp:85:23: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<query_lin>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 85 | for (int i = 0; i < ql[lin].size(); i++) | ~~^~~~~~~~~~~~~~~~ main.cpp:87:19: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::pair<int, int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare] 87 | while (i1 < vp.size() and mp[vp[i1].first] <= mp[ql[lin][i].v]) | ~~~^~~~~~~~~~~ main.cpp: In function 'void solve_all()': main.cpp:114:27: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<query_lin>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 114 | for (int j = 0; j < ql[i].size(); j++) | ~~^~~~~~~~~~~~~~