1. ! has same precedence as unary plus and minus

2. && and || has lower precedence than relational and equality
operators: i < j && k == m → (i < j) && (k == m)

3.C rule → else belongs to the nearest if that hasn’t been
paired with an else

4.Conditional operator has precedence only greater than
assignment operators and less than all others discussed so far
→ Parentheses are necessary