It’s just like 4x longer for no real reason. The language just isn’t that hard, and I feel like they were cashing in on publishing a million new editions. C hasn’t changed much
Also, random plug for Go, which feels about as simple as C but tackles modern problems better (concurrency, amazing garbage collection, servers, world class tooling). Any C developer will feel comfortable with Go super quickly
Installing Ubuntu is so easy a raccoon could accidentally accomplish it while bumping into a keyboard in a trash bin