C : Program to calculate the sum of first n natural numbers

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Nov 29, 2023

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#include <stdio.h>

int main()
{
    int num, sum=0;

    printf("Enter the number :");
    scanf("%d", &num);

    for(int i=1; i<=num; i++)
    {
        sum += i;
    }

    printf("The sum of the first %d natural numbers are %d", num, sum);

    return 0;
}