Compilare: main.cpp: In function 'void path_dfs(int, int)': main.cpp:90:18: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::pair<int, int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare] 90 | for(int i=0;i<order.size();i++) | ~^~~~~~~~~~~~~ main.cpp: In constructor 'segtree::segtree(std::vector<int>&)': main.cpp:104:14: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 104 | while (n < A.size()) n *= 2; | ~~^~~~~~~~~~ main.cpp:106:23: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 106 | for (int i = 0; i < A.size(); ++i) { | ~~^~~~~~~~~~