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

class Solution {
public:
    int minFlips(int a, int b, int c) {
        int ans=0;
        for(long i=0;i<=30;i++){
            long d1=a&1;
            long d2=b&1;
            long d3=c&1;
            if(d3==0) {
                ans += d1+d2;
            }
            else {
                if(d1==0 && d2==0)ans++;
            }
            a/=2;
            b/=2;
            c/=2;
        }
        return ans;
    }
};