Compilare: user.cpp: In function ‘void addTrie(int, int)’: user.cpp:39:41: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for( int j = 0; j < graph[nod].size() && !found; ++j ) ^ user.cpp:53:31: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] if( idx == s.size() - 1 ) ^ user.cpp:75:31: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] if( idx == s.size() - 1 ) ^ user.cpp: In function ‘void findSuff(int)’: user.cpp:98:46: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for( int j = 0; j < graph[tnod].size(); ++j ) ^ user.cpp: In function ‘void bfs(int)’: user.cpp:130:41: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for( int j = 0; j < graph[nod].size(); ++j ) ^ user.cpp: In function ‘int dirNode(int, char)’: user.cpp:139:41: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for( int j = 0; j < graph[nod].size(); ++j ) ^ user.cpp: In function ‘int main()’: user.cpp:208:32: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for( gi = 0; gi < str.size(); ++gi ) ^