### Question

If two threads are incrementing a variable 100 times each without synchronization, what would be the possible min and maximum value.

### Solution

Well, max is init+200, and min is init+2. Suggested by the top answer:

- P1 & P2 copy var
- P1 increments 99 times. so var becomes var + 99
- P2 increments once. so var becomes var + 1
- P1 copies var (value is var + 1)
- P2 increments 99 times. so var becomes var + 100
- P1 increments once. so var becomes var + 2