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298. Left Shift (<<) and Right Shift (>>) Operators
What is Left Shift (<<) Operator:
 a<<b means left shift the bits of number a by b places.
 3<<2 means left shift the bits of number 3 by 2 places. Result = 12
 011 is the bit representation of number 3.
 Left shift all the bits so => 0 1 1 0 (number =6)
 Left shift all the bits so => 0 1 1 0 0 (number = 12).
 Each time you left shift the number, it will be multiplied by 2. So if you shift by a number by k then number will be multiplied by k^{2}.
What is Right Shift (>>) Operator:
 a>>b means right shift the bits of number a by b places.
 12>>2 means right shift the bits of number 12 by 2 places. Result = 3
 0 1 1 0 0 is the bit representation of number 12.
 Right shift all the bits so => 0 1 1 0 (number =6)
 Right shift all the bits so => 0 1 1 (number = 3).
 Each time you right shift the number, it will be divided by 2. So if you shift by a number by k then number will be divided by k^{2}. (Keeps only integer).
Output:
n<<1, Left shift by 1 of n: 10 is : 20 n>>1, Right shift by 1 of n: 10 is : 5 n<<1, Left shift by 1 of n: 62 is : 124 n>>1, Right shift by 1 of n: 62 is : 31