Add warning for incompatibility with AtCoder 202004 #39
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This version (v0.4.x currently) is not compatible with version included in AtCoder 202004 update. Some differences like below is especially problematic, as it may cause different behavior between server and local which can results in
Compile Error
s.use in
match
can produce different printing order. Expected result on local environment, wrong on server.To prevent users from unexpectedly run into those problems, add the warning by default. This warning can be disabled by
disable_compat_warning
.Closes #35.