Compilare: user.cpp: In function ‘int main()’: user.cpp:72:49: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(j = 0 ; j < min((unsigned int)(m), v.size()) ; ++ j) ^ user.cpp:74:20: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for( ; j < v.size() ; ++ j) ^ In file included from /usr/include/c++/4.8/cassert:43:0, from user.cpp:5: user.cpp:80:18: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] assert(found == m); ^ user.cpp:88:15: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] if(i == n - m) ^