Compilare: main.cpp: In function 'int main()': main.cpp:27:49: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] {nr++,dfs1(s[lg]);if(afis[nr].size()>lgmax)lgmax=afis[nr].size(),poz=nr;} ~~~~~~~~~~~~~~~^~~~~~ main.cpp:37:18: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(i=0;i<afis[poz].size()-1;i++) ~^~~~~~~~~~~~~~~~~~~ main.cpp:18:8: warning: unused variable 'j' [-Wunused-variable] {int i,j; ^ main.cpp: In function 'void citire()': main.cpp:60:6: warning: unused variable 'i' [-Wunused-variable] {int i,x,y; ^ main.cpp: In function 'void dfs(int)': main.cpp:73:14: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(i=0;i<g[k].size();i++) ~^~~~~~~~~~~~ main.cpp: In function 'void dfs1(int)': main.cpp:89:14: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(i=0;i<gt[k].size();i++) ~^~~~~~~~~~~~~