Q:

C program to print ODD numbers from 1 to N using while loop

mahmoud2506
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2022-05-03
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C program to print ODD numbers from 1 to N using while loop

Given a range (value of N) and we have to print all ODD numbers from 1 to N using while loop.

Example:

    Input:
    Enter value of N: 10

    Output:
    ODD Numbers from 1 to 10:
    1 3 5 7 9

 

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mahmoud2506
2022-05-03
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Program to print ODD numbers from 1 to N using while loop

#include <stdio.h>

int main()
{
	//loop counter declaration
	int number;
	//variable to store limit /N
	int n;

	//assign initial value 
	//from where we want to print the numbers
	number=1;

	//input value of N
	printf("Enter the value of N: ");
	scanf("%d",&n);

	//print statement
	printf("Odd Numbers from 1 to %d:\n",n);

	//while loop, that will print numbers 
	while(number<=n)
	{
		//Here is the condition to check ODD number
		if(number%2 != 0)
			printf("%d ",number);
		
		// increasing loop counter by 1
		number++;
	}

	return 0;
}

Output

Run(1)
Enter the value of N: 10 
Odd Numbers from 1 to 10:
1 3 5 7 9 

Run(2)
Enter the value of N: 100 
Odd Numbers from 1 to 100:
1 3 5 7 9 11 13 15 17 19 21 23 25 27 29 31 
33 35 37 39 41 43 45 47 49 51 53 55 57 59 
61 63 65 67 69 71 73 75 77 79 81 83 85 87 
89 91 93 95 97 99

Another way to print ODD numbers from 1 to N

Since, we know that ODD numbers starts from 1 and ODD numbers are those numbers which are not divisible by 2. So, we can run a loop from 1 to N by increasing the value of loop counter by 2.

Consider the given code...

//initialising the number by 1
number=1;
//print statement
printf("Odd Numbers from 1 to %d:\n",n);

//while loop, that will print numbers 
while(number<=n)
{
	//print the number 
	printf("%d ",number);
	//increase the value of number by 2
	number+=2;
}

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C programming Looping (while, do while, for) programs
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