Compilare: user.cpp: In function ‘void coborare(int)’: user.cpp:14:9: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] if(x*2<=n&&v[x*2]<v[cel_mai_mic])cel_mai_mic=x*2; ^ user.cpp:15:11: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] if(x*2+1<=n&&v[x*2+1]<v[cel_mai_mic])cel_mai_mic=x*2+1; ^ user.cpp:16:7: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] if(x!=cel_mai_mic){ ^ user.cpp: In function ‘void creare_heap()’: user.cpp:39:16: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i=2;i<=n;i++){ ^ user.cpp: In function ‘int main()’: user.cpp:69:17: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (int i=1;i<=n;i++)in>>v[i]; ^