ceilingKey() defination is wrong

ceilingKey() defination is wrong , sir said ceilingKey is just greater key than the key that you have inserted, but
correct is greater than or equal to . ryt??

Yes, ceiling key refers to greater than or equal to that key.

but in lecture ceiling explain as just greater than the given key

They may have said that by mistake

so , improve it , it will help for fresher students. Thanks

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