What is wrong with my code? I'm not getting my desired output. Answer for 1+x+x^2+x^3+.....

Question

https://code.sololearn.com/cBfclBsSv8OC/?ref=app

Answer 1

try this:
#include <stdio.h>
#include<math.h>
int main() {

int n,i,x,sum=0;
printf ("enter x and n value");
scanf("%d %d",&x,&n);
if (n>0)
{
for(i=0;i<=n;i++)
{
sum=sum+pow(x,i);
}
printf("sum is %d",sum);
}
return 0;
}

Answer 2

Learning

Initialise x with 0 to avoid garbage value and start i with 0 till <= n