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APC-S-014.c

Problem Statement

Write a program to store roll no, name and marks of 5 students then print it. use structure

Metadata

Property Detail
Author Amit Dutta (amitdutta4255@gmail.com)
License MIT
Difficulty Beginner (index: 2 / 10)

Concepts

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  • Recursion
  • Array
  • Sorting (possible)
  • Iteration

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Source Code

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

struct student
{
    int roll_no;
    char name[30];
    float marks;
};

int main()
{
    int i, stu_count = 3;
    struct student s[stu_count];
    for (i = 0; i < stu_count; i++)
    {
        printf("\nEnter the Roll Number: ");
        scanf("%d", &s[i].roll_no);
        getchar();
        printf("Enter the name: ");
        gets(s[i].name);
        printf("Enter the Marks: ");
        scanf("%f", &s[i].marks);
    }
    printf("\n%-10s %-20s %-10s\n", "ROLL", "NAME", "MARKS");
    printf("%-10s %-20s %-10s\n", "====", "====", "=====");
    for (i = 0; i < stu_count; i++)
    {
        printf("%-10d %-20s %-10.2f\n", s[i].roll_no, s[i].name, s[i].marks);
    }
    return 0;
}

Explanation

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    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 (APC-S-014.c):

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

    struct student
    {
        int roll_no;
        char name[30];
        float marks;
    };

    int main()
    {
        int i, stu_count = 3;
        struct student s[stu_count];
        for (i = 0; i < stu_count; i++)
        {
            printf("\nEnter the Roll Number: ");
            scanf("%d", &s[i].roll_no);
            getchar();
            printf("Enter the name: ");
            gets(s[i].name);
            printf("Enter the Marks: ");
            scanf("%f", &s[i].marks);
        }
        printf("\n%-10s %-20s %-10s\n", "ROLL", "NAME", "MARKS");
        printf("%-10s %-20s %-10s\n", "====", "====", "=====");
        for (i = 0; i < stu_count; i++)
        {
            printf("%-10d %-20s %-10.2f\n", s[i].roll_no, s[i].name, s[i].marks);
        }
        return 0;
    }