so want to know why this didn't work Screen shot below
You have a structural error in your printf statement.
printf("You are at least %i 365 days old.\n,days");
The problem was the placement of the closing quote. It included the name of the variable that corresponds to the %i placeholder inside the quote string. The correct format is this:
printf("You are at least %i 365 days old.\n",days);
What I don't understand is the 365.
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