/in/foo.cc:1:1: error: 'include' does not name a type
 include<cstdio>
 ^~~~~~~
/in/foo.cc: In function 'int main()':
/in/foo.cc:12:24: error: 'scanf' was not declared in this scope
     scanf("%d%d",&n,&k1);
                        ^
/in/foo.cc:40:27: error: 'printf' was not declared in this scope
     printf("%lld",f[n][k1]);
                           ^