View Compilation Error

0_0_33039970_28359.cpp: In function 'int main()':
0_0_33039970_28359.cpp:25:40: error: 'scanf_s' was not declared in this scope
     while (scanf_s("%d%d%d", &k, &m, &n) != EOF&&k) {
                                        ^
0_0_33039970_28359.cpp:26:37: error: 'memset' was not declared in this scope
         memset(girl, 0, sizeof(girl));
                                     ^