Question

write a C program to find the sum of all odd integers between 1 and n​

Answer 1

#include <stdio.h>

#include <conio.h>

void main()

{

int i, N, oddSum = 0, evenSum = 0;

clrscr();

printf("Enter the value of N\n");

scanf ("%d", &N);

for (i=1; i <=N; i++)

{

if (i % 2 == 0)

evenSum = evenSum + i;

else

oddSum = oddSum + i;

}

printf ("Sum of all odd numbers = %d\n", oddSum);

printf ("Sum of all even numbers = %d\n", evenSum);

}

/*-----------------------------

Output

RUN1

Enter the value of N

10

Sum of all odd numbers = 25

Sum of all even numbers = 30

RUN2

Enter the value of N

50

Sum of all odd numbers = 625

Sum of all even numbers = 650

------------------------------*/