Compilare: user.cpp: In function ‘int bin_search(int, int)’: user.cpp:53:23: warning: suggest parentheses around ‘+’ inside ‘>>’ [-Wparentheses] middle = left + right >> 1; ^ user.cpp: In function ‘int main()’: user.cpp:78:53: warning: ‘best’ may be used uninitialized in this function [-Wmaybe-uninitialized] printf ("%.2f", (float) bin_search (_min, _max) / 100); ^