Question

C++ Language:

Do not use namespace

Test Case:

3-D vectors Write a templated function, called "add 3d", that can add two const references to 3-d vectors [vector>]. It should return a new 3-d vector that performed element-wise addition. You cannot use indexing on this problem, instead you must use iterators to access the values of end vector. INPUT OF THE TEST CASE 1 #include 2 using std: : vector; 3 const vector a{1, 4, -6}; const vector b{3, 6, 2}; const vector expected{1, 3, 4, 6, -6, 2}; 6 zipper_merge(a, b); 8 vector result 9 ASSERT_EQ(result, expected); 10 11 const vector a2{'1', '4', '6'}; 12 const vector b2{'3', '6', '2'}; 13 const vector expected2{'1', '3', '4', '6', '6', '2'}; 14 15 vector result2 = zipper_merge(a2, b2); 16 ASSERT_EQ(result2, expected2);

Answer 1

Here is code:

#include <iostream>

#include <vector>

using std::vector;

vector<double> zipper_merge(vector<double> a, vector<double> b)

{

vector<double> result;

int i;

for (i = 0; i < a.size() && i < b.size(); i++)

{

result.push_back(a[i]);

result.push_back(b[i]);

}

if (i < a.size())

{

for (; i < a.size(); i++)

{

result.push_back(a[i]);

}

}

else if (i < b.size())

{

for (; i < b.size(); i++)

{

result.push_back(b[i]);

}

}

return result;

}

vector<char> zipper_merge(vector<char> a, vector<char> b)

{

vector<char> result;

int i;

for (i = 0; i < a.size() && i < b.size(); i++)

{

result.push_back(a[i]);

result.push_back(b[i]);

}

if (i < a.size())

{

for (; i < a.size(); i++)

{

result.push_back(a[i]);

}

}

else if (i < b.size())

{

for (; i < b.size(); i++)

{

result.push_back(b[i]);

}

}

return result;

}

void ASSERT_EQ(vector<double> a, vector<double> b)

{

for (int i = 0; i < b.size(); i++)

{

if (a[i] != b[i])

{

std::cout << "Test case failed!" << std::endl;

return;

}

}

std::cout << "Test case passed!" << std::endl;

}

void ASSERT_EQ(vector<char> a, vector<char> b)

{

for (int i = 0; i < b.size(); i++)

{

if (a[i] != b[i])

{

std::cout << "Test case failed!" << std::endl;

return;

}

}

std::cout << "Test case passed!" << std::endl;

}

int main()

{

const vector<double> a{1, 4, -6};

const vector<double> b{3, 6, 2};

const vector<double> expected{1, 3, 4, 6, -6, 2};

vector<double> result = zipper_merge(a, b);

ASSERT_EQ(result, expected);

const vector<char> a2{'1', '4', '6'};

const vector<char> b2{'3', '6', '2'};

const vector<char> expected2{'1', '3', '4', '6', '6', '2'};

vector<char> result2 = zipper_merge(a2, b2);

ASSERT_EQ(result2, expected2);

return 0;

}

Output:

Test case passed! Test case passed!