C Language Nested Loops Set 25

Get the following output:

A
B A
C B A
D C B A
E D C B A

code

Get the following output:

A
B B
C C C
D D D D
E E E E E

code

Get the following output:

A B C D E
F G H I J
K L M N O
P Q R S T
U V W X Y

code