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When an integer denominator does not divide evenly into an integer
numerator, the division operator truncates, rather than rounds, the result,
producing another integer. The
modulus operator, %, produces
the remainder:
5 / 3 // Divide, evaluating to 1, rather than 2 or 1.66667 5
Of course, when dividing floating-point numbers, C++ produces a floating-point result:
5.0 / 3.0 // Divide, evaluating to 1.66667