Compilare: main.cpp: In function 'void HLD::computepath(int, int)': main.cpp:43:22: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int h = 0; h < g[node].size(); h++){ ~~^~~~~~~~~~~~~~~~ main.cpp:51:22: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int h = 0; h < g[node].size(); h++){ ~~^~~~~~~~~~~~~~~~ main.cpp: In function 'void dfs(int, int)': main.cpp:114:20: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int h = 0; h < g[node].size(); h++){ ~~^~~~~~~~~~~~~~~~ main.cpp: In function 'void dfsclear(int, int)': main.cpp:124:20: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int h = 0; h < g[node].size(); h++){ ~~^~~~~~~~~~~~~~~~ main.cpp: In function 'int main()': main.cpp:139:7: warning: variable 'root' set but not used [-Wunused-but-set-variable] int root = 0; ^~~~ main.cpp:152:13: warning: unused variable '_m' [-Wunused-variable] long long _m = m; ^~ main.cpp:153:16: warning: unused variable '_c' [-Wunused-variable] unsigned int _c = c; ^~