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I created two arrays A and B, the array C should store the first elements of A and B. Ex : A={1,2,3}, B={4,5,6}, C must be {1,4,2,5,3,6}. My program doesn't show anything after the input of my arrays. This is my loop : 

for(int i(0);i<3;i++){
        C.push_back(A[i]);
        C.push_back(B[i]);
}

for(int i(0);i<6;i++){
        std::cout << C[i] << " ";
}
Hibou
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2 Answers2

1

Try this:

int main()
{
    std::vector<int> A = {1,2,3};
    std::vector<int> B = {4,5,6};
    std::vector<int> C;
    for (int i(0); i < 3; i++)
    {
        C.push_back(A[i]);
        C.push_back(B[i]);
    }

    for (int i(0); i < 6; i++)
    {
        std::cout << C[i] << " ";
    }

    return 0;
}

Or you can change it to:

int main()
{
    std::vector<int> A(3);
    std::vector<int> B(3);
    for (int i = 0; i < 3; ++i)
    {
        std::cin >> A[i];
    }
    for (int i = 0; i < 3; ++i)
    {
        std::cin >> B[i];
    }
    std::vector<int> C;
    for (int i(0); i < 3; i++)
    {
        C.push_back(A[i]);
        C.push_back(B[i]);
    }

    for (int i(0); i < 6; i++) 
    {
        std::cout << C[i] << " ";
    }

    return 0;
}
NixoN
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1
// Initilize n = length(A) + length(B)
vector<int> C[n];
for(int i=0;i<3;i+=2){
       C.push_back(A[i]);
       C.push_back(B[i]);
}
for(int i=0;i<6;i++){
    cout<<C[i];
}

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