Compilare: main.cpp: In function 'int main()': main.cpp:39:18: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::pair<int, int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare] 39 | for(p1 = 0; p1 < vv.size(); p1++) { | ~~~^~~~~~~~~~~ main.cpp:40:14: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::pair<int, int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare] 40 | for(; p2 < vv.size() && b.count() < n; p2++) { | ~~~^~~~~~~~~~~ main.cpp:40:39: warning: comparison of integer expressions of different signedness: 'std::size_t' {aka 'long unsigned int'} and 'int' [-Wsign-compare] 40 | for(; p2 < vv.size() && b.count() < n; p2++) { | ~~~~~~~~~~^~~ main.cpp:46:18: warning: comparison of integer expressions of different signedness: 'std::size_t' {aka 'long unsigned int'} and 'int' [-Wsign-compare] 46 | if(b.count() == n) | ~~~~~~~~~~^~~~ main.cpp:59:20: warning: 'r' may be used uninitialized in this function [-Wmaybe-uninitialized] 59 | for(int i = l; i <= r; i++) | ~~^~~~ main.cpp:35:12: warning: 'l' may be used uninitialized in this function [-Wmaybe-uninitialized] 35 | int ans, l, r, p1, p2; | ^