Program to find sum of even & odd numbers in C++ from 1 to N.
#include<iostream> using namespace std; int main() { int n; int sum=0,sum1=0; cout<<"enter the number of element"<<endl; cin>>n; for(int i=0;i<=n;i++) { if(i%2==0) { sum=sum+i; } } cout<<"sum of even number is = "<<sum<<endl; for(int i=0;i<=n;i++) { if(i%2!=0) { sum1=sum1+i; } } cout<<"sum of odd number is = "<<sum1; }
3) #include
#include
void main()
{
clrscr();
int a,even,odd,n =0
cout<>a;
cout<>n;
if (a%2==0)
{
cout<<”YOU ENTERED A EVEN NUMBER”;
for(;a<n;a++)
{
even+=a;
}cout<<"sum of even number is = "<<even<<endl;
}
else
{
cout<<”YOU ENTERED A ODD NUMBER”;
for(;a<n;a++)
{
odd+=a;
}cout<<"sum of odd number is = "<<odd;
}
getch();
}