/in/foo.cc:9:36: error: macro "fo" requires 3 arguments, but only 2 given
   fo(i,3,n)fo(j,0,k)fo(p,min(i-1,j))f[i][j]=(f[i-1][j-k]+f[i][j])%10000;
                                    ^
/in/foo.cc: In function 'int main()':
/in/foo.cc:9:21: error: 'fo' was not declared in this scope
   fo(i,3,n)fo(j,0,k)fo(p,min(i-1,j))f[i][j]=(f[i-1][j-k]+f[i][j])%10000;
                     ^~