azimafroozeh - clean example #86

Job	Run time
check-format (ubuntu-latest)	9s
build (ubuntu-latest, Debug, clang++)	5m 24s
build (ubuntu-latest, Release, clang++)	5m 38s
build (macos-latest, Debug, clang++)	2m 38s
build (macos-latest, Release, clang++)	3m 20s
build (president, Debug, clang++)	1m 40s
build (president, Release, clang++)	1m 47s
build (windows-latest, Debug, clang++)	5m 34s
build (windows-latest, Release, clang++)	6m 23s
example (ubuntu-latest, Debug, clang, clang++)	7m 37s
example (macos-latest, Debug, clang, clang++)	4m 28s
example (windows-latest, Debug, clang, clang++)	8m 22s
test	0s
	53m 0s

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