/in/foo.cc:1:2: error: invalid preprocessing directive #inlcude
 #inlcude <bits/stdc++.h>
  ^~~~~~~
/in/foo.cc: In function 'int main()':
/in/foo.cc:7:2: error: 'cin' was not declared in this scope
  cin>>len;
  ^~~
/in/foo.cc:53:23: error: 'printf' was not declared in this scope
    printf("d ",b[i][k]);
                       ^
/in/foo.cc:55:14: error: 'printf' was not declared in this scope
   printf("\n");
              ^