View Compilation Error

0_0_32421555_3382.cpp: In function 'int main()':
0_0_32421555_3382.cpp:26:21: error: 'scanf_s' was not declared in this scope
     scanf_s("%d", &T);
                     ^
0_0_32421555_3382.cpp:30:35: error: 'memset' was not declared in this scope
         memset(g, false, sizeof(g));
                                   ^