Compilare: user.cpp: In function ‘void Find(int, int)’: user.cpp:40:43: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i = 0; i < Hash[X % Mod].size(); ++i) ^ user.cpp: In function ‘int solve(int)’: user.cpp:50:43: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i = 0; i < Hash[X % Mod].size(); ++i) ^ user.cpp: In function ‘void dfs(int, int)’: user.cpp:62:36: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i = 0; i < v[Nod].size(); ++i) ^ user.cpp: In function ‘int main()’: user.cpp:74:40: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("arbore3.out", "w", stdout); ^