View Compilation Error

0_0_15530289_28660.cpp: In function 'int init_NewFarm(int)':
0_0_15530289_28660.cpp:22:28: error: 'memset' was not declared in this scope
  memset(bit, 0, sizeof(bit));
                            ^
0_0_15530289_28660.cpp: In function 'int main()':
0_0_15530289_28660.cpp:119:18: error: 'scanf_s' was not declared in this scope
  scanf_s("%d", &T);
                  ^