Compilare: main.cpp: In function 'int main()': main.cpp:40:20: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<query>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 40 | for (int i = 0; i < que.size(); i++) { | ~~^~~~~~~~~~~~ main.cpp:47:21: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<query>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 47 | for (int j = i; j<que.size() && que[j].x / sq == last; j++) { | ~^~~~~~~~~~~ main.cpp:39:49: warning: 'dr' may be used uninitialized in this function [-Wmaybe-uninitialized] 39 | int maxi = -1, x, y, last = -1, maxfr = 0, st, dr, nr = 0, ind; | ^~ main.cpp:39:45: warning: 'st' may be used uninitialized in this function [-Wmaybe-uninitialized] 39 | int maxi = -1, x, y, last = -1, maxfr = 0, st, dr, nr = 0, ind; | ^~