View Compilation Error

0_0_33039974_21957.cpp: In function 'int main()':
0_0_33039974_21957.cpp:25:37: error: 'memset' was not declared in this scope
         memset(girl, 0, sizeof(girl));
                                     ^
0_0_33039974_21957.cpp:28:35: error: 'scanf_s' was not declared in this scope
             scanf_s("%d%d", &x, &y);
                                   ^