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Reverse the binary representation of a number.

Objec­tive: Write a pro­gram to Reverse the binary rep­re­sen­ta­tion of a number


Input : 30
Output : 15


binary representation of 30 is : 11110
reverse of binary representation : 01111
decimal of reversed binary representation is : 15

Input: A Number

Out­put: Dec­i­mal of reversed binary rep­re­sen­ta­tion of a number.


  • Ini­tial­ize int res =0
  • Now from a num­ber , take one bit at a time
  • take AND of that bit with 1 and then OR with res and store it in res
  • make right shift in num­ber by 1
  • make left shift in res by 1
Reverse Binray representation of a Decimal

Reverse Bin­ray rep­re­sen­ta­tion of a Decimal

Com­plete Code:


Binary rotation of 30 is : 15


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