WAP to print all natural numbers from 1 to n using while loop.

C program to print all natural numbers from 1 to n using while loop

Write a C program to enter any number from user and print all natural numbers from 1 to n using while loop. How to print all natural numbers from 1 to n using while loop in C programming.

Example:
Input upper limit to print natural numbers: 10
Output natural numbers from 1 to 10: 1, 2, 3, 4, 5, 6, 7, 8, 9, 10 

Also view this program using other programming methods: 
C program to print all natural numbers from 1 to n using for loop. 
C program to print all natural numbers from 1 to n using recursion. 

Required knowledge

Basic C programming, Loop 


Program to print natural numbers using while loop

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/**
 * <a href="#">C program to print all natural numbers from 1 to n using while loop</a>
 */

#include <stdio.h>

int main()
{
    int i, n;

    /*
     * Reads a number from user
     */
    printf("Print all natural numbers from 1 to : ");
    scanf("%d", &n);

    /*
     * Prints all natural number from 1 to n
     */
    i=1;
    while(i<=n)
    {
        printf("%d\n", i);
        i++;
    }

    return 0;
}

Note: If you want to print natural numbers in range then you need to initialize the loop counter with some variable such as:

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i=start;
while(i<=n)
{
    printf("%d\n", i);
    i++;
}


Output
Print all natural numbers from 1 to : 100
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Comments

  1. Write a C program to print all natural numbers from 1 to n using for loop.

    Code of given problem:

    int main()
    {
    int i=1,n;
    printf("Enter the number to print all natural number till that entered number\t");
    scanf("%d",&n);
    for(i=1;i<=n;i++)
    {
    printf("%d\t",i);
    }
    return 0;
    }

    Very informative blog!

    Please take some time to visit my blog @
    for loop program examples

    Thanks!

    ReplyDelete

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