View Compilation Error

0_0_36243018_2066.cpp: In function 'int main()':
0_0_36243018_2066.cpp:101:32: error: 'scanf_s' was not declared in this scope
  while (~scanf_s("%d%d", &n, &m)) {
                                ^
0_0_36243018_2066.cpp:102:33: error: 'memset' was not declared in this scope
   memset(vis, false, sizeof(vis));
                                 ^