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find sum of natural numbers from 1 to n

find sum of natural numbers from 1 to n

Write a C program to find the sum of all natural numbers between 1 to n using for loop. How to find sum of natural numbers in a given range in C programming. Logic to find sum of all natural numbers in a given range in C programming.

    Input upper limit to find sum of natural numbers. Store it in some variable say N.
    Initialize another variable to store sum of numbers say sum = 0.
    In order to find sum we need to iterate through all natural numbers between 1 to n. Initialize a loop from 1 to N, increment loop counter by 1 for each iteration. The loop structure should look like for(j=1; j<=N; j++).
    Inside the loop add previous value of sum with j. Which is sum = sum + j.
    Finally after loop print the value of sum.

#include <stdio.h>

int main()
{
    int j, n, sum=0;

    /* Input upper limit from user */
    printf("Enter upper limit: ");
    scanf("%d", &n);

    /* Find sum of all numbers */
    for(j=1; j<=n; j++)
    {
        sum += j;
    }

    printf("Sum of first %d natural numbers = %d", n, sum);

    return 0;
}

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