Compilare: main.cpp: In function 'void solve_lin(int)': main.cpp:134:23: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::pair<int, int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare] 134 | for (int i = 0; i < vp.size() + ql[lin].size(); i++) | ~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~ main.cpp:136:16: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::pair<int, int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare] 136 | if (i1 == vp.size()) | ~~~^~~~~~~~~~~~ main.cpp:138:21: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<query_lin>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 138 | else if (i2 == ql[lin].size()) | ~~~^~~~~~~~~~~~~~~~~ main.cpp:149:23: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 149 | for (int i = 0; i < vls.size(); i++) | ~~^~~~~~~~~~~~ main.cpp:153:23: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<query_lin>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 153 | for (int i = 0; i < ql[lin].size(); i++) | ~~^~~~~~~~~~~~~~~~ main.cpp:155:19: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::pair<int, int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare] 155 | while (i1 < vp.size() and mp[vp[i1].first] <= mp[ql[lin][i].v]) | ~~~^~~~~~~~~~~ main.cpp: In function 'void solve_all()': main.cpp:182:27: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<query_lin>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 182 | for (int j = 0; j < ql[i].size(); j++) | ~~^~~~~~~~~~~~~~ main.cpp: In function 'void transmat()': main.cpp:195:23: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::pair<int, std::pair<int, int> > >::size_type' {aka 'long unsigned int'} [-Wsign-compare] 195 | for (int i = 1; i < vv.size(); i++) | ~~^~~~~~~~~~~