[Tutorial] Introduction to programming using C (VII)

[m0skit0]

Using only pointers: declare an array of signed integers and assing it a size of 50 integers.

You're not declaring an array of signed integers anywhere

Same as the last exercise but also assign positions 5, 6, and 8, and then print them.

Ok, but try to assign something printable

Given 2 strings of length 5, encrypt the first one using the second one using an XOR operation.

It's totally correct. They are valid characters but non-printable ones. Some characters are not meant to be printed but for operations. They are called control characters, for example \n. Some of this non-printable characters might have weird representations on most shells, since most of the control characters were designed for old terminals and are now useless.

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