#include<stdio.h>

int main(){

    int number;
  
    printf("Enter any integer: ");
    scanf("%d",&number);

    if(number % 2 ==0)
         printf("%d is even number.",number);
    else
         printf("%d is odd number.",number);
  
    return 0;

}
Sample output:
Enter any integer: 5
5 is odd number.

#include<stdio.h>

int main(){

    int number;
    int min,max;
  
    printf("Enter the minimum range: ");
    scanf("%d",&min);

    printf("Enter the maximum range: ");
    scanf("%d",&max);

    printf("Odd numbers in given range are: ");
    for(number = min;number <= max; number++)

         if(number % 2 !=0)
             printf("%d ",number);
  
    return 0;

}
Sample output:
Enter the minimum range: 1
Enter the maximum range: 20
Odd numbers in given ranges are: 1 3 5 7 9 11 13 15 17 19

#include<stdio.h>

int main(){

    int number;
    int min,max;
  
    printf("Enter the minimum range: ");
    scanf("%d",&min);

    printf("Enter the maximum range: ");
    scanf("%d",&max);

    printf("Odd numbers in given range are: ");
    for(number = min;number <= max; number++)

         if(number % 2 !=0)
             printf("%d ",number);

    printf("\nEven numbers in given range are: ");
    for(number = min;number <= max; number++)

         if(number % 2 ==0)
             printf("%d ",number);
  
    return 0;
}
Sample output:
Enter the minimum range: 1
Enter the maximum range: 20
Odd numbers in given ranges are: 1 3 5 7 9 11 13 15 17 19
Even numbers in given ranges are: 2 4 6 8 10 12 14 16 18 20

#include<stdio.h>

int main(){

    int number;
    int min,max;
    long sum =0;
  
    printf("Enter the minimum range: ");
    scanf("%d",&min);

    printf("Enter the maximum range: ");
    scanf("%d",&max);

    for(number = min;number <= max; number++)
         if(number % 2 !=0)
             sum = sum + number;

    printf("Sum of odd numbers in given range is: %ld",sum);
  
    return 0;

}
Sample output:
Enter the minimum range: 1
Enter the maximum range: 100
Sum of odd numbers in given range is: 2500

#include<stdio.h>

int main(){

    int number;
    int min,max;
    long odd_sum =0,even_sum = 0;
  
    printf("Enter the minimum range: ");
    scanf("%d",&min);

    printf("Enter the maximum range: ");
    scanf("%d",&max);

    for(number = min;number <= max; number++)
         if(number % 2 != 0)
             odd_sum = odd_sum + number;
         else
             even_sum = even_sum + number;

    printf("Sum of even numbers in given range is: %ld\n",even_sum);
    printf("Sum of odd numbers in given range is: %ld",odd_sum);
  
    return 0;

}
Sample output:
Enter the minimum range: 1
Enter the maximum range: 10
Sum of even numbers in given range is: 30
Sum of odd numbers in given range is: 25