Compilare: user.cpp: In function ‘double greedy(unsigned int)’: user.cpp:12:26: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] #define min(x, y) ((x)<(y)?(x):(y)) ^ user.cpp:26:20: note: in expansion of macro ‘min’ v += 1.0 * min(G - gtmp, v2[k].second) * v2[k].first / v2[k].second; ^ user.cpp:12:26: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] #define min(x, y) ((x)<(y)?(x):(y)) ^ user.cpp:27:17: note: in expansion of macro ‘min’ gtmp += min(G - gtmp, v2[k].second); ^