How to print the following pattern in C or C++?

Question

ABCDEDCBA
ABCD DCBA
ABC CBA
AB BA
A A

Please try to confine only to C or C++

Answer 1

Is this a challenge or a question ?
Well if its a question then try using matrix try this case for printing the triangle
cin>>sz;
for(i=0;i<sz;i++) {
for(j=0;j<sz;j++) {
if(i==j&&I+j==sz-1) {
cout<<mat[i][j]<<" ";
}
else {
cout<<" "<<" ";
}
}
cout<<endl;
}