This is a video introducing the https://arena.topcoder.com website.
I wanted to record a live session in problem solving.
The “easy” program I initially wanted to write turned out to be an
“intermediate” one, although it wasn’t really complicated.
In total it took me around 40 minutes to solve this problem (topcoder gave me 107 out of 250 points)
There are 3 cuts in the video because I wasn’t sure how long it would take me to find my mistakes so I paused the video each time to spare you…