diff options
Diffstat (limited to 'other/min_flips_abc.cpp')
-rw-r--r-- | other/min_flips_abc.cpp | 22 |
1 files changed, 22 insertions, 0 deletions
diff --git a/other/min_flips_abc.cpp b/other/min_flips_abc.cpp new file mode 100644 index 0000000..b51b261 --- /dev/null +++ b/other/min_flips_abc.cpp @@ -0,0 +1,22 @@ +// 1318. Minimum Flips to Make a OR b Equal to c +#include "leetcode.h" + +/* + * given three positive numbers 'a, b, c'. return the minimum flips required in + * some bits of 'a | b == c'. flip operation consists of changing any single bit + * 1 to 0 or changing the bit 0 to 1 in their binary representation + */ + +class Solution { +public: + int minFlips(int a, int b, int c) { + return __builtin_popcount(c ^= a | b) + __builtin_popcount(a & b & c); + } +}; + +int main() { + Solution obj; + printf("%d\n", obj.minFlips(2, 6, 5)); // expect: 3 + printf("%d\n", obj.minFlips(4, 2, 7)); // expect: 1 + printf("%d\n", obj.minFlips(1, 2, 3)); // expect: 0 +} |