Compilare: main.cpp: In function 'int32_t main()': main.cpp:36:13: warning: narrowing conversion of '((long double)-2 * x)' from 'long double' to 'int' inside { } [-Wnarrowing] v[i]={-2*x, y*y+x*x}; ~~^~ main.cpp:55:17: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] while((cr+1)<v.size()&&v[cr+1].eval(q[i].x)<v[cr].eval(q[i].x)) cr++; ~~~~~~^~~~~~~~~