Compilare: main.cpp: In function 'void dfs(int, int)': main.cpp:16:19: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 16 | for(int i=0; i<g[k].size(); i++) | ~^~~~~~~~~~~~ main.cpp: In function 'void rmq()': main.cpp:29:19: 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< e[0].size(); i++) | ~^~~~~~~~~~~~~ main.cpp:32:27: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 32 | for(int i=1; (1 << i) < e[0].size(); i++) | ~~~~~~~~~^~~~~~~~~~~~~ main.cpp:34:24: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 34 | for(int j=0; j <= e[0].size() - (1 << i); j++) | ~~^~~~~~~~~~~~~~~~~~~~~~~~~