Compilare: main.cpp: In function 'int main()': main.cpp:79:20: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<query>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 79 | while (ind < qs[i].size() and qs[i][ind].r <= lim) | ~~~~^~~~~~~~~~~~~~ main.cpp:88:24: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<query>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 88 | while (ind < qs[i].size() and qs[i][ind].r < j) | ~~~~^~~~~~~~~~~~~~ main.cpp:90:24: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<query>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 90 | while (ind < qs[i].size() and qs[i][ind].r == j) | ~~~~^~~~~~~~~~~~~~