C PROGRAMMING PROGRAM • STRUCTURES, UNIONS & ENUMS

Use a Nested Structure for an Employee Joining Date

Learn how to use a nested structure for an employee joining date using a clear C program.

BeginnerNested structureCompositionMember access

PROBLEM UNDERSTANDING

Input and expected output

Sample input
No input required
Sample output
101 Bhavya joined on 09-09-2026

COMPLETE C PROGRAM

Complete C implementation

nested-structure-date.c
Open in compiler
#include <stdio.h>

struct Date { int day, month, year; };
struct Employee { int id; char name[20]; struct Date joined; };

int main(void)
{
    struct Employee employee = {101, "Bhavya", {9, 9, 2026}};
    printf("%d %s joined on %02d-%02d-%d\n", employee.id, employee.name,
           employee.joined.day, employee.joined.month, employee.joined.year);
    return 0;
}

GUIDED CODE TOUR • NOT LIVE EXECUTION

Study the program line by line

Use the real compiler button above to run and debug with different inputs.

CURRENT STEP

Select Start to walk through the important lines.

SELECTED LINE

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EXPECTED OUTPUT FOR THE SAMPLE

101 Bhavya joined on 09-09-2026
0%Step 0 of 0

PROGRAM EXPLANATION

Algorithm and explanation

  1. Read the required input values.
  2. Embed a Date structure inside an Employee structure and access members through both levels.
  3. Display the computed result.

Embed a Date structure inside an Employee structure and access members through both levels.

EFFICIENCY

Time and space complexity

Time complexity

O(1)

Auxiliary space

O(1)

DEBUGGING CHECKLIST

Common mistakes

Check this

Use the correct format specifier for every variable.

Check this

Initialize variables before using their values.

Check this

Check braces, semicolons and input order carefully.

Try it yourself

Practice: Run the program with the sample input, predict its output, and then test one boundary case of your own.