Compilare: main.cpp: In function 'void computesz(int, int)': main.cpp:28:20: 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:38:20: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int h = 0 ;h < g[node].size() ; h++){ ~~^~~~~~~~~~~~~~~~ main.cpp: In function 'void addtosum(int, int, int, int)': main.cpp:59:21: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int h = 0 ; h < g[node].size() ; h++){ ~~^~~~~~~~~~~~~~~~ main.cpp: In function 'void addresult(int, int, int, long long int, int)': main.cpp:74:20: 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:97:21: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int h = 0 ; h < g[centroid].size() ; h++){ ~~^~~~~~~~~~~~~~~~~~~~ main.cpp:109:21: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int h = 0 ; h < g[centroid].size() ; h++) { ~~^~~~~~~~~~~~~~~~~~~~