`luc069.c`¶

Problem Statement

If the string "Alice in wonder land" is fed to the following scanf() statement, what will be the contents of arrays str1, str2, str3 and str4?

Metadata¶

Property	Detail
Author	Amit Dutta amitdutta4255@gmail.com
Date	08 Feb 2026
License	MIT License (See the LICENSE file for details)
Difficulty	Beginner (index: 0 / 10)

Concepts¶

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Array

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Source Code¶

#include <stdio.h>
#include <string.h>
#include <stdlib.h>

int main()
{
    char str1[20], str2[20], str3[20], str4[20];

    printf("Enter the string 'Alice in wonder land': ");
    /* scanf stops reading at the first whitespace character for %s */
    scanf("%s%s%s%s", str1, str2, str3, str4);

    printf("\nContents of arrays:\n");
    printf("str1: %s\n", str1);
    printf("str2: %s\n", str2);
    printf("str3: %s\n", str3);
    printf("str4: %s\n", str4);

    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 (luc069.c):

    #include <stdio.h>
    #include <string.h>
    #include <stdlib.h>

    int main()
    {
        char str1[20], str2[20], str3[20], str4[20];

        printf("Enter the string 'Alice in wonder land': ");
        /* scanf stops reading at the first whitespace character for %s */
        scanf("%s%s%s%s", str1, str2, str3, str4);

        printf("\nContents of arrays:\n");
        printf("str1: %s\n", str1);
        printf("str2: %s\n", str2);
        printf("str3: %s\n", str3);
        printf("str4: %s\n", str4);

        return 0;
    }

luc069.c¶