Series Program in C 3

(1) + (1+2) + (1+2+3) + (1+2+3+4) + ... + (1+2+3+4+...+n)

Code:

int main()

{

    int i,j,n,sum=0;

    n=10;

    for(i=1;i<=n;i++)

    {

        for(j=1;j<=i;j++)

        {

            sum+=j;

        }

    }

    printf("Sum: %d",sum);

    return 0;

}

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