C++ Code To Print The Sum Of Even And Odd Numbers Between Any Two Numbers::

 C++ Code To Print The Sum Of Even And Odd Numbers Between Any Two Numbers::

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#include <stdio.h>
int main()
{
int firstnum, secondnum, sumOfEvenNumbers = 0, sumOfOddNumbers = 0,i;



do
{
printf("Enter first number: ");
scanf("%d", &firstnum);

printf("Enter second number: ");
scanf("%d", &secondnum);

if(firstnum >= secondnum)
printf("Error: first number must be less than the second number\n");

} while(firstnum >= secondnum);

for( i = firstnum; i <= secondnum; i++)
{
if(i % 2 == 0)
sumOfEvenNumbers += i;
else
sumOfOddNumbers += i;
}

printf("sum of even numbers from %d to %d = %d\n", firstnum, secondnum, sumOfEvenNumbers);
printf("sum of odd numbers from %d to %d = %d\n", firstnum, secondnum, sumOfOddNumbers);

return 0;
}