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C program to Calculate (1) + (1+2) + (1+2+3) + (1+2+3+4) + ... + (1+2+3+4+...+n) series



C program to Calculate (1) + (1+2) + (1+2+3) + (1+2+3+4) + ... + (1+2+3+4+...+n) series

#include<iostream.h>
#include<conio.h>

void main()
{
 int x,j,n,sum=0;
 clrscr();
    n=10;
    for(x=1;x<=n;x++)
    {
        for(j=1;j<=x;j++)
        {
            sum+=j;
        }
    }
    cout<<"Sum: "<<sum;
getch();
}

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