Compilare: user.cpp: In function ‘int main()’: user.cpp:4:34: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] #define min(a,b) ((a > b) ? b : a) ^ user.cpp:57:25: note: in expansion of macro ‘min’ for(int i = 0 ; i < min(1000, match.size()) ; ++ i) ^