Feed Pigeons

I start to feed one of the pigeons. A minute later two more fly by and a minute after that another 3. Then 4, and so on (Ex: 1+2+3+4+...). One portion of food lasts a pigeon for a minute, but in case there's not enough... portions of bird feed, how many pigeons will be fed with at least one portion of wheat?

A quantity of portions wheat as a positive integer.

The number of fed pigeons as an integer.

checkio(1) == 1 checkio(2) == 1 checkio(5) == 3 checkio(10) == 6

This task illustrates how we can model various situations. Of course, the model has a limited approximation, but often-times we don't need a perfect model.

0 < N < 10.

You should be an authorized user in order to see the full description and start solving this mission.