Compilare: main.cpp: In function 'void dfs(int, int)': main.cpp:24:20: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int h = 0; h < g[node].size(); h++){ ~~^~~~~~~~~~~~~~~~ main.cpp: In function 'int getcentroid(int, int, int)': main.cpp:34:20: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int h = 0; h < g[node].size(); h++){ ~~^~~~~~~~~~~~~~~~ main.cpp: In function 'void extract(int, int, int, long long int&, long long int&, int)': main.cpp:46:20: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int h = 0; h < flareons[node].size(); h++){ ~~^~~~~~~~~~~~~~~~~~~~~~~ main.cpp:55:20: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int h = 0; h < g[node].size(); h++){ ~~^~~~~~~~~~~~~~~~ main.cpp: In function 'void addsol(int, int, int, long long int, long long int)': main.cpp:66:20: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int h = 0; h < g[node].size(); h++){ ~~^~~~~~~~~~~~~~~~ main.cpp: In function 'void solve(int)': main.cpp:80:20: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int h = 0; h < g[centroid].size(); h++){ ~~^~~~~~~~~~~~~~~~~~~~ main.cpp:91:20: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int h = 0; h < g[centroid].size(); h++){ ~~^~~~~~~~~~~~~~~~~~~~