URI Online Judge Solution 1149 Summing Consecutive Integers

URI Online Judge Solution 1149 Summing Consecutive Integers using C Programming Language.

Write an algorithm to read a value A and a value N. Print the sum of N numbers from A (inclusive). While N is negative or ZERO, a new N (only N) must be read. All input values are in the same line.

Input

The input contains only integer values, ​​can be positive or negative.

Output

The output contains only an integer value.

Input Sample	Output Sample
3 2	7

3 -1 0 -2 2

7

Solution using C :

#include <stdio.h>
int main() {
    int a,n,s=0;
        scanf("%d%d",&a,&n);
        while(n<=0)
            scanf("%d",&n);
        while(n)
        {
            s += a++;
            n--;
        }
        printf("%d\n",s);
    return 0;
}