Compilare: main.cpp: In function 'int main()': main.cpp:76:20: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<query>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 76 | while (ind < qs[i].size() and qs[i][ind].r <= lim) | ~~~~^~~~~~~~~~~~~~ main.cpp:85:24: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<query>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 85 | while (ind < qs[i].size() and qs[i][ind].r < j) | ~~~~^~~~~~~~~~~~~~ main.cpp:87:24: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<query>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 87 | while (ind < qs[i].size() and qs[i][ind].r == j) | ~~~~^~~~~~~~~~~~~~