🚀 Programming Example
Program to calculate the sum of first n natural numbers using while loop
Program to calculate the sum of first n natural numbers using while loop
// Program to calculate the sum of first n natural numbers
// Positive integers 1,2,3...n are known as natural numbers
#include <stdio.h>
int main()
{
int num, count, sum = 0;
printf("Enter a positive integer: ");
scanf("%d", &num);
count = 1;
while(count <= num)
{
sum += count;
++count;
}
printf("Sum = %d \n", sum);
return 0;
}
Enter a positive integer: 10
Sum = 55
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First understand the algorithm carefully. Then study the program line-by-line and compare it with the output. Finally, review the explanation section to strengthen your logic and programming understanding.
Rewrite the program without looking at the code. Modify values, conditions or logic and run it again. This helps improve confidence and strengthens coding skills much faster.