C Program Sum Series N Natural Numbers
/* C program to calculate and print sum of the series 1+2+3+4+...+n C program to print the sum of all natural numbers from 1 to n. */ #include<stdio.h> int main() { int i,n,sum; printf("Enter the value of n: "); scanf("%d",&n); sum=0; /* loop to calculate sum from 1 to n*/ for(i=1;i<=n;i++) sum= sum+ i; /*display the sum on screen*/ printf("The Sum of the series 1+2+3+...+%d is: %d\n",n,sum); return 0; }
Output
Enter the value of n: 10
The Sum of the series 1+2+3+…+10 is: 55