View Compilation Error

0_0_14178830_30466.cpp: In function 'int main()':
0_0_14178830_30466.cpp:54:27: error: 'memset' was not declared in this scope
   memset(in, 0, sizeof(in));
                           ^
0_0_14178830_30466.cpp:61:29: error: 'scanf_s' was not declared in this scope
     scanf_s("%c", &map[i][j]);
                             ^