View Compilation Error

0_0_13504299_17654.cpp: In function 'void solve(int)':
0_0_13504299_17654.cpp:198:40: error: 'scanf_s' was not declared in this scope
  scanf_s("%d%d%d%d", &L1, &R1, &L2, &R2);
                                        ^
0_0_13504299_17654.cpp: In function 'int main()':
0_0_13504299_17654.cpp:206:18: error: 'scanf_s' was not declared in this scope
  scanf_s("%d", &T);
                  ^