Compilare: user.cpp: In function ‘void adauga(int)’: user.cpp:24:42: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i = 0;i < Hash[hashKey].size(); i++) ^ user.cpp:23:34: warning: unused variable ‘i’ [-Wunused-variable] int hashKey = cost % modulo, i; ^ user.cpp: In function ‘int search(int)’: user.cpp:38:42: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i = 0;i < Hash[hashKey].size(); i++) ^ user.cpp:37:34: warning: unused variable ‘i’ [-Wunused-variable] int hashKey = cost % modulo, i; ^ user.cpp: In function ‘void sterge(int)’: user.cpp:51:42: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i = 0;i < Hash[hashKey].size(); i++) ^ user.cpp:50:34: warning: unused variable ‘i’ [-Wunused-variable] int hashKey = cost % modulo, i; ^ user.cpp: In function ‘void dfs(int, int)’: user.cpp:67:31: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i=0;i<v[nod].size();i++) ^