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This is hopefully a really simple issue that I am overlooking. I am writing in C++ on Qt and I am working on ciphers. I have to use the %26 in order to get them working. I tested this: qDebug() << (6-18)%26; and according to the internet and math, it should produce me with the number 14, right? No. I get -12 which is what 6-18 is, so I don't know if the modulo isn't being applied of what. Any help is greatly appreciated.

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  • @incBrain Thank you, it worked! Should I delete the post? Commented Jun 11, 2016 at 1:12
  • @NicholasJohnson You can delete it if you wish, or you can just leave it and it may be marked as a dupe, which might still help people searching for it in future :) Commented Jun 11, 2016 at 1:35

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You are right on this: 6-18 = -12

When I divide: -12/26 = 0.46

With modulus = 4

I Hope this help you.

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