Enter A Integer Number And Display It Total Sum Program in C++ Programming Lang

#include<conio.h>

#include<iostream.h>

void main()

{

int no,add=0,c;

  clrscr();

  cout<<"\n\t\t Enter Number to display It addition Sum:->";

  cin>>no;

  for(c=1;c<=no;c++)

  {

  add=add+c;     //addition Of Each Number

   }

  cout<<"Sum Of Entered Number Is:"<<add<<endl;

  getch();

   }

Output:

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Enter Number to display It addition Sum:->55

Sum Of Enter Number:1040