Compilare: user.cpp: In function ‘void init_hash()’: user.cpp:38:42: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (int j = 0; j < dict[i].size(); ++j) ^ user.cpp:43:36: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (int i = 0; i < carte.size(); ++i) ^ user.cpp: In function ‘int main()’: user.cpp:73:41: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (int i = 1; i <= carte.size(); ++i) ^