C++PLS

Write a program that takes: two arrays (1,2,3), (4,5) and a specific index, add the second array to a specific index in the first array? int a[1={1,2,3); // the first array is a traditional array vector v(2): v.at(0)=4; v.at(1)=5; // 2nd array is a vector need two outputs ( one using a traditional array, one using a vector) If specified index is 1, the output will look like this: {1,4,5,2,3)