I have to loop through 1 <= i <= 20 and every time I mod any i, I want to get a value between 1,2,3. Sorry I have not found any useful resources online. That's why I posted it here. Thanks in advance.
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Maisha
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Do you know what mod does? Do you know how to get any interesting result applying it to `i`? – Beta Jan 13 '22 at 05:06
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Use the modulo operator, e.g. index = (i % 3)+1; (https://www.learncpp.com/cpp-tutorial/arithmetic-operators/) – Pepijn Kramer Jan 13 '22 at 05:06
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In C++ the % sign acts as the remainder operator.
If you do
i % 3;
The possible values are 0, 1, and 2.
Using that as a starting point, we can shift by 1:
(i % 3) + 1;
The possible values are now 1, 2, and 3.
Nathan Pierson
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1Minor point: `%` is the **remainder** operator, not the modulo operator. Remainders can be negative. – Pete Becker Jan 13 '22 at 14:09