no point + v-ing or no point in + v-ing

[vkhu]

I have no idea which version is correct and if both of them are then how to use them. For example:

There is no point complaining to him
There is no point in complaining to him

Is there any difference between those two?

 

[bhaisahab]

I have no idea which version is correct and if both of them are then how to use them. For example:

There is no point complaining to him
There is no point in complaining to him

Is there any difference between those two?

They are both fine and mean the same.