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Module DEMO-32-58DEMO-C-32

Print Alphabet Sequence

DEMO-C-32 • Programming in C

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Problem Statement

Write a C program that reads a lowercase letter from the user and prints all lowercase letters from 'a' up to and including the input letter.

For example, if the user enters 'e', your program should print 'abcde'. If the user enters 'm', your program should print 'abcdefghijklm'.

Requirements:

  • Use a loop to generate the sequence
  • Handle only valid lowercase letters from 'a' to 'z'
  • Print all characters on a single line with no spaces

Constraints

The input will be a single lowercase English letter (a-z) Your solution must use loops (for, while, or do-while) No arrays or advanced data structures allowed Time limit: 1 second

Input Format

A single lowercase letter (from 'a' to 'z') followed by a newline character.

Output Format

A sequence of consecutive lowercase letters starting from 'a' up to and including the input letter, printed on a single line with no spaces.

Sample Testcases

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Sample #1
Public sample
Input
e
Output
abcde
Explanation
Sample case showing sequence from 'a' to 'e'
Sample #2
Public sample
Input
a
Output
a
Explanation
Edge case with single character output
Sample #3
Public sample
Input
z
Output
abcdefghijklmnopqrstuvwxyz
Explanation
Sample case showing full alphabet sequence
Sample #4
Public sample
Input
c
Output
abc
Explanation
Sample case showing short sequence
Sample #5
Public sample
Input
j
Output
abcdefghij
Explanation
Hidden case testing sequence ending at 'j'

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