2.35 is not an integer.
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Store the absolute value of the desired integer in a variable. Multiply the absolute value by two. Substract the new integer by the old integer.
Integer programming is a special kind of an optimising problem where the solution must be an integer.
ZERO 0
Having an unsigned integer means that the integer is positive, and not negative; literally, the integer is unsigned and assumed to be positive. The unsigned integer 8 is positive-eight, not negative-eight.
Example: int x; -- integer int *px= &x; -- pointer to integer int **ppx= &px; -- pointer to pointer to integer int ***pppx= &ppx; -- pointer to pointer to pointer to integer