views/questions/show.html.erb
add gap detection
Revert "tempolary comment out"

This reverts commit b8749121fbb0935bc20006b5923cb5a441de1758.
Revert "Revert "tempolary comment out""

This reverts commit 4ad5ec71426a7e4d6976a9705b5689a9e5c6b42d.
untest
remove meaningless validation
add validation for CorrectAnswer
:
:
merge
judge answer
:
merge
scaffold user
question#show
style modified
merge
stylesheet
管理者画面の変更
fix question view