Compilare: main.cpp: In member function 'void SegmentTree::build(int, int, int)': main.cpp:140:18: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::pair<int, int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare] 140 | while(ind<aux1.size() && aux1[ind].second<=y) | ~~~^~~~~~~~~~~~ main.cpp:143:57: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::pair<int, int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare] 143 | for(int j=aux1[ind].second+1; j<=min(y,((ind<aux1.size()-1)?aux1[ind+1].first-1:inf+1)); j++) | ~~~^~~~~~~~~~~~~~ main.cpp: In member function 'int SegmentTree::query(int, int)': main.cpp:188:23: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 188 | for(int i=1; i<nodes.size(); i++) | ~^~~~~~~~~~~~~ main.cpp:201:27: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 201 | for(int i=0; i<nodes.size(); i++) | ~^~~~~~~~~~~~~ main.cpp:206:28: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 206 | if(i>0 && i<nodes.size()-1) | ~^~~~~~~~~~~~~~~