1) Write a C++ program to merge two arrays to third array. Input: A=[1,2,3,4,5] B=[6,1,7,8] Output: C-[1,2,3,4,5,6, 1,7,8] 2) Write a c++ program to check whether two matrices are equal or not. Two matrices are said to be equal if and only if they are of same size and they have equal corresponding entries. 1 2 3 1 2 3 [-] 4 5 6 7 8 9 456 1 2 3 4 5 6 789 789 Matrix A 3) Write a C++ program to add two matrices. 1+9 2+8 3+7 4+6 5+5 6+4 7+3 8+2 9+1 987 6 5 4 3 2 1 Matrix B = -[1 4) Write a C++ program to swap two integers using pointers. 10 10 10 10 10 10 10 10 10