Compilare: main.cpp: In function 'void dfs(int, int)': main.cpp:18:18: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 18 | for(int i=0;i<g[node].size();i++) | ~^~~~~~~~~~~~~~~ main.cpp: In function 'void build_rmq()': main.cpp:29:18: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 29 | for(int i=0;i<v.size();i++) | ~^~~~~~~~~ main.cpp: In function 'void findinterv(int, int)': main.cpp:42:18: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 42 | for(int i=0;i<v.size();i++) | ~^~~~~~~~~ main.cpp: In function 'int findancestor(int, int)': main.cpp:65:1: warning: no return statement in function returning non-void [-Wreturn-type] 65 | } | ^ main.cpp: In function 'int main()': main.cpp:79:18: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 79 | for(int i=0;i<v.size();i++) | ~^~~~~~~~~ main.cpp:85:19: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 85 | for(int i=0;i<v.size();i++) | ~^~~~~~~~~