The evaluation metric for this competition is Area Under the ROC Curve (AUC): https://en.wikipedia.org/wiki/Receiver_operating_characteristic

## Submission Format

**For every id in the test dataset**, submission files should contain two columns: `id` and `target`. 

The file should contain a header and have the following format:
```
id,target
0,0.9
1,0.5
2,0.2
```