Compile a function to change the number of digits to convert integer a to integer B.

Source: Internet
Author: User

Returns the number of 1 records.

The number of statistical items 1 can be shifted to one digit,

The advanced algorithm N & (n-1) removes 1 of the N percentile.

 

What does the extension N & (n-1) = 0 mean: N is a power of 2 or N = 0;

 

Int bitswaprequired (int A, int B) {int COUNT = 0; For (INT c = a ^ B; C! = 0; C> 1) Count + = C & 1; return count;} int bitswaprequired2 (int A, int B) {int COUNT = 0; for (INT c = a ^ B; C! = 0; C = C & (c-1) Count ++; return count ;}

 

Compile a function to change the number of digits to convert integer a to integer B.

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