`luc066.c`¶

Problem Statement

Write a program to add two 6 x 6 matrices.

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: 1 / 10)

Concepts¶

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Pointers
Array
Sorting (possible)
Iteration

Actions¶

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Source Code¶

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

int main()
{
    int mat1[6][6], mat2[6][6], sum[6][6];
    int i, j;

    // Initializing matrices with some values automatically 
    // to avoid asking user to enter 72 numbers.
    printf("Initializing two 6x6 matrices with sample data...\n");

    for (i = 0; i < 6; i++)
    {
        for (j = 0; j < 6; j++)
        {
            mat1[i][j] = i + j;       // Example data
            mat2[i][j] = i * j;       // Example data
        }
    }

    // Adding matrices
    for (i = 0; i < 6; i++)
    {
        for (j = 0; j < 6; j++)
        {
            sum[i][j] = mat1[i][j] + mat2[i][j];
        }
    }

    printf("\nSum of the two 6x6 matrices:\n");
    for (i = 0; i < 6; i++)
    {
        for (j = 0; j < 6; j++)
        {
            printf("%4d ", sum[i][j]);
        }
        printf("\n");
    }

    return 0;
}

Explanation¶

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    You are explaining a C programming code to a beginner.

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    - 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 (luc066.c):

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

    int main()
    {
        int mat1[6][6], mat2[6][6], sum[6][6];
        int i, j;

        // Initializing matrices with some values automatically 
        // to avoid asking user to enter 72 numbers.
        printf("Initializing two 6x6 matrices with sample data...\n");

        for (i = 0; i < 6; i++)
        {
            for (j = 0; j < 6; j++)
            {
                mat1[i][j] = i + j;       // Example data
                mat2[i][j] = i * j;       // Example data
            }
        }

        // Adding matrices
        for (i = 0; i < 6; i++)
        {
            for (j = 0; j < 6; j++)
            {
                sum[i][j] = mat1[i][j] + mat2[i][j];
            }
        }

        printf("\nSum of the two 6x6 matrices:\n");
        for (i = 0; i < 6; i++)
        {
            for (j = 0; j < 6; j++)
            {
                printf("%4d ", sum[i][j]);
            }
            printf("\n");
        }

        return 0;
    }

luc066.c¶