write a program to find sum of n numbers

A number n is taken from user.

Sum of all natural numbers upto n is displayed.

Select To use this code as it is.. select and copy paste this code into code.cpp file

1. #include<iostream.h>
2. #include<conio.h>
3. void main()
4. {
5. clrscr();
6. int n,sum=0;
7. cout<<”Please enter a number: “;
8. cin>>n;
9. for (int i=1;i<=n;i++)
10. sum=sum+i;
11. cout<<sum;
13. getch();
14. }

Write a program to calculate sum of two numbers

Two numbers are taken from the user and sum is calculated.

Select To use this code as it is.. select and copy paste this code into code.cpp file

1. #include <iostream.h>
2. #include <conio.h>
3. void main()
4. {
5. clrscr();
6. float a,b,s;
7. cout<<”Please enter a no.: “;
8. cin>>a;
9. cout<<”Please enter another no.: “;
10. cin>>b;
11. s=a+b;
12. cout<<”The sum is: “<<s;
14. getch();
15. }