Compilare: main.cpp: In function 'void Input()': main.cpp:18:24: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int kk=0;kk<=strlen(c)-1;++kk) ~~^~~~~~~~~~~~~ main.cpp: In function 'int dist(int, int)': main.cpp:92:1: warning: control reaches end of non-void function [-Wreturn-type] } ^ main.cpp: In function 'int lca(int, int)': main.cpp:68:12: warning: 'low' may be used uninitialized in this function [-Wmaybe-uninitialized] return low; ^~~ main.cpp: In function 'int main()': main.cpp:126:55: warning: 'low' may be used uninitialized in this function [-Wmaybe-uninitialized] out << ( dist(LCAAA,nod1) + dist(LCAAA,nod2) )/2<<"\n"; ~~~~^~~~~~~~~~~~