`lucproblem003.c`¶

Problem Statement

If a character is entered through the keyboard, Write a program to determine whether the character is a capital letter, a small case letter, a digit or a speacial symbol. The following table shows the range of ASCII values for various characters : Characters ASCII Values A - Z 65 - 90 a - z 97 - 122 0 - 9 48 - 57 special symbols 0 - 47, 58 - 64, 91 - 96, 123 - 127

Metadata¶

Property	Detail
Author	Amit Dutta (amitdutta4255@gmail.com)
License	MIT
Difficulty	Beginner (index: 1 / 10)

Concepts¶

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Recursion

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Source Code¶

#include <stdio.h>
int main()
{
    char inp;
    printf("Enter one character : ");
    scanf(" %c", &inp);
    if (inp >= 64 && inp <= 90)
        printf("\nInput '%c' is a CAPITAL LETTER.", inp);
    if (inp >= 97 && inp <= 122)
        printf("\nInput '%c' is a SMALL CASE LETTER.", inp);
    if (inp >= 48 && inp <= 57)
        printf("\nInput '%c' is a DIGIT.", inp);
    if (inp >= 0 && inp <= 47 || inp >= 58 && inp <= 64 
        || inp >= 91 && inp <= 96 || inp >= 123 && inp <= 127)
        printf("\nInput '%c' is a SPECIAL SYMBOL.", inp);
    return 0;
}

Explanation¶

Explain with AI

Copy the prompt below and paste it into any AI assistant.

    You are explaining a C programming code to a beginner.

    STRICT RULES:

    - Only use the given code. Do NOT assume anything not present.

    - Do NOT add extra examples.

    - Keep explanation clear and short.

    - If something is unclear, say "Not clear from code".

    - Follow the exact format below. Do NOT change headings.

    FORMAT:

    [START]

    ## What it does

    (Explain the overall purpose in 1-2 sentences)

    ## Step-by-step

    (Explain how the code works in steps, simple language)

    ## Key Concepts

    (List concepts like loop, condition, function, etc.)

    ## Notes

    (Mention any limitations, errors, or assumptions)

    [END]

    CODE (lucproblem003.c):

    #include <stdio.h>
    int main()
    {
        char inp;
        printf("Enter one character : ");
        scanf(" %c", &inp);
        if (inp >= 64 && inp <= 90)
            printf("\nInput '%c' is a CAPITAL LETTER.", inp);
        if (inp >= 97 && inp <= 122)
            printf("\nInput '%c' is a SMALL CASE LETTER.", inp);
        if (inp >= 48 && inp <= 57)
            printf("\nInput '%c' is a DIGIT.", inp);
        if (inp >= 0 && inp <= 47 || inp >= 58 && inp <= 64 
            || inp >= 91 && inp <= 96 || inp >= 123 && inp <= 127)
            printf("\nInput '%c' is a SPECIAL SYMBOL.", inp);
        return 0;
    }

lucproblem003.c¶