View Compilation Error

0_0_19345108_32143.cpp: In function 'int main()':
0_0_19345108_32143.cpp:82:89: error: 'scanf_s' was not declared in this scope
   scanf_s("%lf%lf%lf%lf%lf%lf%lf%lf", &n1.x, &n1.y, &n2.x, &n2.y, &s.x, &s.y, &e.x, &e.y);
                                                                                         ^