View Compilation Error

0_0_24382924_29633.cpp: In function 'int main()':
0_0_24382924_29633.cpp:40:23: error: 'scanf_s' was not declared in this scope
   scanf_s("%d%d",&n,&m);
                       ^
0_0_24382924_29633.cpp:46:39: error: 'memset' was not declared in this scope
    memset(sums[i],-1,(m+1)*sizeof(int));
                                       ^