Tiny's blog

Are there any problems with "%lld"?
By Tiny, history, 8 years ago, In English

As everyone knows, it's forbidden to submit code containing "%lld". Once I thought this is because "%lld" doesn't work in Codeforces' system. However, I happened to submit code using (#define LLD "%l" "ld") and use the macro LLD for printf, and it works all the time just like "%I64d", does anyone know the reason? Does it really always work with "%lld"?

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8 years ago, # |
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A warning does indeed pop up when you try to submit with "%lld" for the first time. Just click "Don't show again", and you will be able to submit it without any problems.

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8 years ago, # |
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Some old compilers do not recognize "%lld". In the past, using "%lld" on CodeForces would cause "Wrong Answer". But the compilers used by CF had been upgraded. And now (at least in the recent half year), I never encounter problems with "%lld".

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    8 years ago, # ^ |
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    So the warning info should be upgraded too. It's confusing to new user :)

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