Compilare: main.cpp: In function 'void dfs(int, int)': main.cpp:19:24: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for ( int i = 0; i < vecini[nod].size(); i++ ) ~~^~~~~~~~~~~~~~~~~~~~ main.cpp: In function 'void calc(int)': main.cpp:43:28: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for ( int i = 0; i < vecini[nod].size(); i++ ) ~~^~~~~~~~~~~~~~~~~~~~ main.cpp:48:28: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for ( int i = 0; i < vecini[nod].size(); i++ ) ~~^~~~~~~~~~~~~~~~~~~~ main.cpp:68:24: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for ( int i = 0; i < vecini[nod].size(); i++ ) ~~^~~~~~~~~~~~~~~~~~~~ main.cpp:74:24: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for ( int i = 0; i < vecini[nod].size(); i++ ) ~~^~~~~~~~~~~~~~~~~~~~ main.cpp:90:24: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for ( int i = 0; i < vecini[nod].size(); i++ ) ~~^~~~~~~~~~~~~~~~~~~~ main.cpp:112:24: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for ( int i = 0; i < vecini[nod].size(); i++ ) ~~^~~~~~~~~~~~~~~~~~~~ main.cpp: In function 'void solve(int)': main.cpp:137:24: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for ( int i = 0; i < adancime[height].size(); i++ ) ~~^~~~~~~~~~~~~~~~~~~~~~~~~ main.cpp: In function 'void calc(int)': main.cpp:46:54: warning: 'k' may be used uninitialized in this function [-Wmaybe-uninitialized] dp[0][nod] = dp[1][nod] = dp[2][nod] = best[k] + 1; ~~~~~~^