1318. Minimum Flips to Make a OR b Equal to c.cpp

class Solution {
public:
    int minFlips(int a, int b, int c) {
         int flip = 0;

         while(a !=  0 || b!= 0 || c!= 0){
                       //rightmost bit
                     if((c&1) == 1){                          
                           if((a&1) == 0 && (b&1)==0) {
                                          flip++;
                           }
                      }
                     else {

                          if((a&1) == 1) flip++;
                          if((b&1) == 1) flip++; 
                     }
            //right-shift
            a>>=1;
            b>>=1;
            c>>=1;
         }
return flip;
    }
};