Compilare: main.cpp: In function 'void rmq()': main.cpp:30:18: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::pair<int, int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare] 30 | for(int i=2;i<=euler.size();i++)lg[i]=lg[i/2]+1; | ~^~~~~~~~~~~~~~ main.cpp:32:18: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::pair<int, int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare] 32 | for(int i=0;i<=euler.size();i++)dp[0][i]=euler[i]; | ~^~~~~~~~~~~~~~ main.cpp:34:23: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::pair<int, int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare] 34 | for(int k=1;(1<<k)<=euler.size();k++) | ~~~~~~^~~~~~~~~~~~~~ main.cpp:36:29: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::pair<int, int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare] 36 | for(int i=0;i+(1<<k)<=euler.size();i++) | ~~~~~~~~^~~~~~~~~~~~~~ main.cpp: In function 'int main()': main.cpp:82:39: warning: 'castigator2' may be used uninitialized [-Wmaybe-uninitialized] 82 | fout<<ans<<" "<<castigator1<<" "<<castigator2; | ^~~~~~~~~~~ main.cpp:53:9: note: 'castigator2' was declared here 53 | int castigator2; | ^~~~~~~~~~~ main.cpp:82:34: warning: 'castigator1' may be used uninitialized [-Wmaybe-uninitialized] 82 | fout<<ans<<" "<<castigator1<<" "<<castigator2; | ^~~ main.cpp:52:9: note: 'castigator1' was declared here 52 | int castigator1; | ^~~~~~~~~~~