Compilare: main.cpp: In function 'void build(int, int, int)': main.cpp:34:15: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] while( (p1<t[v*2].size()) || (p2<t[v*2+1].size()) ){ ~~^~~~~~~~~~~~~~ main.cpp:34:37: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] while( (p1<t[v*2].size()) || (p2<t[v*2+1].size()) ){ ~~^~~~~~~~~~~~~~~~ main.cpp:35:14: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] if(p1==(t[2*v].size()) ){ ~~^~~~~~~~~~~~~~~~~ main.cpp:40:14: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] if(p2==(t[2*v+1].size()) ){ ~~^~~~~~~~~~~~~~~~~~~