View Compilation Error

0_0_16737316_15990.cpp: In function 'int main()':
0_0_16737316_15990.cpp:72:43: error: 'scanf_s' was not declared in this scope
  while (scanf_s("%I64d%I64d%I64d",&n,&x,&m)&&n>0&&m>0&&x>0 )
                                           ^