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TheAlgorithms/C++: bit_manipulation/gray_code.cpp Source File

std::vector<std::bitset<32>> gray_code_generation(

n) {

std::vector<std::bitset<32>>

= {};

total_codes = 1 << n;

(

i = 0; i < total_codes; i++) {

gray_num = i ^ (i >> 1);

.push_back(std::bitset<32>(gray_num));

std::vector<std::bitset<32>> gray_code_negative_1 = {};

std::vector<std::bitset<32>> gray_code_0 = {};

std::vector<std::bitset<32>> gray_code_1 = {

std::bitset<32>(0), std::bitset<32>(1)

std::vector<std::bitset<32>> gray_code_2 = {

std::bitset<32>(0), std::bitset<32>(1), std::bitset<32>(3), std::bitset<32>(2)

std::vector<std::bitset<32>> gray_code_3 = {

std::bitset<32>(0), std::bitset<32>(1), std::bitset<32>(3), std::bitset<32>(2),

std::bitset<32>(6), std::bitset<32>(7), std::bitset<32>(5), std::bitset<32>(4)

std::vector<std::bitset<32>> gray_code_4 = {

std::bitset<32>(0), std::bitset<32>(1), std::bitset<32>(3), std::bitset<32>(2),

std::bitset<32>(6), std::bitset<32>(7), std::bitset<32>(5), std::bitset<32>(4),

std::bitset<32>(12), std::bitset<32>(13), std::bitset<32>(15), std::bitset<32>(14),

std::bitset<32>(10), std::bitset<32>(11), std::bitset<32>(9), std::bitset<32>(8)

std::vector<std::bitset<32>> gray_code_5 = {

std::bitset<32>(0), std::bitset<32>(1), std::bitset<32>(3), std::bitset<32>(2),

std::bitset<32>(6), std::bitset<32>(7), std::bitset<32>(5), std::bitset<32>(4),

std::bitset<32>(12), std::bitset<32>(13), std::bitset<32>(15), std::bitset<32>(14),

std::bitset<32>(10), std::bitset<32>(11), std::bitset<32>(9), std::bitset<32>(8),

std::bitset<32>(24), std::bitset<32>(25), std::bitset<32>(27), std::bitset<32>(26),

std::bitset<32>(30), std::bitset<32>(31), std::bitset<32>(29), std::bitset<32>(28),

std::bitset<32>(20), std::bitset<32>(21), std::bitset<32>(23), std::bitset<32>(22),

std::bitset<32>(18), std::bitset<32>(19), std::bitset<32>(17), std::bitset<32>(16)

assert(bit_manipulation::gray_code::gray_code_generation(-1) == gray_code_negative_1);

assert(bit_manipulation::gray_code::gray_code_generation(0) == gray_code_0);

assert(bit_manipulation::gray_code::gray_code_generation(1) == gray_code_1);

assert(bit_manipulation::gray_code::gray_code_generation(2) == gray_code_2);

assert(bit_manipulation::gray_code::gray_code_generation(3) == gray_code_3);

assert(bit_manipulation::gray_code::gray_code_generation(4) == gray_code_4);

assert(bit_manipulation::gray_code::gray_code_generation(5) == gray_code_5);

static void test()

Self-test implementations.

int main()

Main function.

Generate n-bit Gray code.

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