View Compilation Error

0_0_32442189_30447.cpp: In function 'int judgeWater(int)':
0_0_32442189_30447.cpp:8:19: error: 'pow' was not declared in this scope
  if (m == (pow(a,3) + pow(b,3) + pow(c,3)))
                   ^
0_0_32442189_30447.cpp: In function 'int main()':
0_0_32442189_30447.cpp:15:31: error: 'scanf_s' was not declared in this scope
  while (scanf_s("%d%d", &m, &n) != EOF) {
                               ^