Compilare: main.cpp: In function 'void dfs(int, int)': main.cpp:27:20: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int h = 0; h < g[node].size(); h++) { ~~^~~~~~~~~~~~~~~~ main.cpp: In function 'int findcentroid(int, int, int)': main.cpp:37:19: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int h = 0;h < g[node].size(); h++) { ~~^~~~~~~~~~~~~~~~ main.cpp: In function 'void marksub(int, int, int)': main.cpp:59:19: 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:77:20: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int h = 0; h < g[centroid].size(); h++) { ~~^~~~~~~~~~~~~~~~~~~~ main.cpp:85:20: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int h = 0; h < ansnow.size(); h++) { ~~^~~~~~~~~~~~~~~ main.cpp:101:20: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int h = 0; h < g[centroid].size(); h++) { ~~^~~~~~~~~~~~~~~~~~~~