Strings
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Roman to Integer: In what direction is the for loop?
Backwards Because of the subtractive notation used in Roman numerals
ZigZag Conversion: When is charsInBetween calculated?
When it is not the first row && when it is not the last row
ZigZag Conversion: What is the formula for charsInSection & charsInBetween?
charsInSection: 2 * (numRows - 1) charsInBetween: charsInSection - (2 * i)
