Problem 1: Vaccine Efficacy

https://open.kattis.com/problems/vaccineefficacy

To solve this problem we need to manipulate the data into something that's easier to use.

What do we need to compute the efficacy for each strain?

Consider the equation for calculating the vaccine efficacy:

$$\text{efficacy}=\frac{\frac{\text{infected-control}}{\text{total-control}} - \frac{\text{infected-experimental}}{\text{total-experimental}}}{\frac{\text{infected-control}}{\text{total-control}}}$$

For each strain of the virus, we need to know:

1. the number of people in the control/experimental group

2. The number of people infected in the control/experimental group

Once we have all the necessary info collected, we can calculate each vaccine's efficacy easily.