View Compilation Error

0_0_18374316_29977.cpp: In member function 'bool Dinic::bfs(int)':
0_0_18374316_29977.cpp:34:35: error: 'memset' was not declared in this scope
         memset(vis, 0, sizeof(vis));
                                   ^
0_0_18374316_29977.cpp: In member function 'int Dinic::Maxflow(int, int)':
0_0_18374316_29977.cpp:75:39: error: 'memset' was not declared in this scope
             memset(cur, 0, sizeof(cur));
                                       ^