In C++

Write a program using integer rowNum, and output a number pyramid with one space after each number. Ex: If the input is: 6 the output is: 1 2 1 2 3 2 1 2 3 4 3 2 1 2 3 4 5 4 3 2 1 2 3 4 5 6 5 4 3 2 1 2 3 4 5 6 Note: make sure it works for double digits as well main.cpp Load default template... 1 #include 2 using namespace std; 3 4 int main() { 5 int rowNum; 6 cin >> rowNum; 7 8 /* Type your code here. */ 9 10 11 return 0; 12 13