C validating input char dating tip s

the problem now is that if i type in negative value or a character i won't get a correct output.so i came up with this validation : which is not efficient at all.

So if my input is 10 and 2 my output should be 2 4 6 8.cause instead of re-prompting for another input of num1, it just exits. assuming that you only know arrays, pointers, and conditions, and the only lib you know of is stdio.and if it is NULL a different message should be printed. Basically i have this task to get 2 inputs stored into num1 and num2 of int type.The following 'book example' of validating input seems to be incomplete.Since it is a beginner's book it may be intentional for simplicity.

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  1. A third Wyandot group, the Attiwandaronk, called the Neutrals because of their stance in Wyandot-Iroquois conflicts, occupies the country west of Niagara.1609 - July 30; Champlain accompanies a mixed war party of Hurons and Algonkins to the lake which now bears his name, where with his aid they inflict a major defeat on the Iroquois.

  2. She argued that the character in the BBC cartoon was loosely based on “Quintus Lollius Urbicus, a man from what is now Algeria, who became governor of Britain.” She spoke against the “rubbish” arguments about genetic evidence from alt-right commentators and their “desire for certainty” when it came to historical information that was not always possible to ascertain, such as the population of Britain during the Roman empire and the ethnic make-up.