Minimum Flips to Make a OR b Equal to c

1package pkg5leetcode.official75;2 3/*4 * Minimum Flips to Make a OR b Equal to c | LC 13185 * APPROACH: Per bit compare a|b to c; count mismatches.6 * COMPLEXITY: Time O(1), Space O(1)7 */8public class official75_LC1318MinimumFlipsToMakeAORbEqualToC {9    static int minFlips(int a, int b, int c) {10        int flips = 0;11        for (int i = 0; i < 32; i++) {12            int bitC = (c >> i) & 1;13            int bitA = (a >> i) & 1;14            int bitB = (b >> i) & 1;15            if (bitC == 1) {16                if (bitA == 0 && bitB == 0) flips++;17            } else {18                if (bitA == 1 && bitB == 1) flips += 2;19                else if (bitA == 1 || bitB == 1) flips++;20            }21        }22        return flips;23    }24 25    public static void main(String[] args) {26        check(minFlips(2, 6, 5) == 3, "case1");27        check(minFlips(4, 2, 7) == 1, "case2");28        check(minFlips(1, 2, 3) == 0, "case3");29        System.out.println("all tests passed");30    }31 32    static void check(boolean cond, String name) {33        if (!cond) throw new AssertionError("FAILED: " + name);34        System.out.println("  PASS " + name);35    }36}