C PROGRAMMING PROGRAM • ARRAYS, SEARCHING & SORTING

Copy One Array into Another

Learn how to copy one array into another using a clear C program.

BeginnerArraysLoopsIndexing

PROBLEM UNDERSTANDING

Input and expected output

Sample input

4
6 8 2 5

Sample output

Copied array: 6 8 2 5

COMPLETE C PROGRAM

Complete C implementation

#include <stdio.h>

int main(void)
{
    int size, source[100], destination[100];

    printf("Enter array size: ");
    scanf("%d", &size);
    if (size < 1 || size > 100) return 1;
    for (int index = 0; index < size; index++) scanf("%d", &source[index]);
    for (int index = 0; index < size; index++) destination[index] = source[index];
    printf("Copied array: ");
    for (int index = 0; index < size; index++) printf("%d%c", destination[index], index == size - 1 ? '\n' : ' ');
    return 0;
}

CURRENT STEP

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SELECTED LINE

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EXPECTED OUTPUT FOR THE SAMPLE

Copied array: 6 8 2 5

0%Step 0 of 0

PROGRAM EXPLANATION

Algorithm and explanation

Read the required input values.
Assign every source element to the destination element at the same index.
Display the computed result.

Assign every source element to the destination element at the same index.

EFFICIENCY

Time and space complexity

Time complexity

O(n)

Auxiliary space

O(n)

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.