Array Input and Output in C: With and Without Loops

 

Arrays in C 

(Same Output, But still different!)

So I was learning arrays in C, and I tried two different styles to take and print 5 numbers.
One uses a loop, and one doesn’t, but both give the exact same output! 

Here's what have i done:

Program 1: Using a Loop 

#include <stdio.h>

int main() {
    int numbers[5];
    int i;

    printf("Enter 5 numbers:\n");
    for(i = 0; i < 5; i++) {
        scanf_s("%d", &numbers[i]);
    }

    printf("You entered:\n");
    for(i = 0; i < 5; i++) {
        printf("%d\n", numbers[i]);
    }

    return 0;
}

What it does:

• Creates an array with 5 elements

• Uses a for loop to take input and print it

• Code is shorter and cleaner

Program 2: Without a Loop 

#include <stdio.h>

int main() {
    int num[5];

    printf("Enter 5 numbers:\n");
    scanf_s("%d", &num[0]);
    scanf_s("%d", &num[1]);
    scanf_s("%d", &num[2]);
    scanf_s("%d", &num[3]);
    scanf_s("%d", &num[4]);

    printf("You entered:\n");
    printf("%d\n", num[0]);
    printf("%d\n", num[1]);
    printf("%d\n", num[2]);
    printf("%d\n", num[3]);
    printf("%d\n", num[4]);

    return 0;
}

What it does:

• Also takes and prints 5 numbers

• No loops, just direct scanf_s and printf

• Easy to understand, but not good for large inputs

Same Output Example:

If user enters:
10 20 30 40 50

Both programs will print:

You entered:
10
20
30
40
50