CI

Build concept exercises + fix concept exercise that does not build. #1141

Sign in to view logs

Run time

Learn about OS pricing on GitHub Actions

Job	Run time
Linux Min Config (clang++-6.0)	1m 34s
Linux Min Config (g++-10)	1m 34s
MacOS	2m 38s
Windows	3m 1s
Linux Latest Config (clang++)	5m 29s
Linux Latest Config (g++)	1m 24s
	15m 40s