how to Find the first number after input a number which has the same number of 1 both of their Binary Number using c language

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Actually I can't solve this . please help me..........

Decimal Number : (23,24,25,26,27,28,29)
Binary Number of them :(10111,11000,11001,11010,11011,11100,11101)
Here same is 23,27,29 there are four '1' among this 23,27 and 29. If I input 23 then it will show a decimal number which also have four '1' and which is nearest from the other same (four '1') number.

Posted 22-Aug-14 2:10am

Rayhanuzzaman Roky

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Richard MacCutchan · Answer 1 · 2014-08-22T03:31:00

Solution 1

A combination of shift and logical operators will help you. See http://msdn.microsoft.com/en-us/library/y0c1cfax.aspx[^].

Posted 22-Aug-14 3:31am

Richard MacCutchan

Comments

Rayhanuzzaman Roky 23-Aug-14 2:17am

sorry sir I can't understand and solve my problem!

Richard MacCutchan 23-Aug-14 2:52am

Sorry, but if you don't understand the basic operators in C then you are not going to get very far. You can count the number of bits in a value by testing the low or high order bit against a fixed value (0x01 for low and 0x80 for high). You then shift the value left or right as appropriate to move the next bit into that position and repeat until you have tested all bits.

Rayhanuzzaman Roky 23-Aug-14 5:26am

thanks....... I know this but can't run this code something wrong and so that it is not working properly

Richard MacCutchan 23-Aug-14 6:17am

something wrong and so that it is not working properly
That could mean anything. Edit your question and show the code and explain where it is not working.