Evaluating a Polynomial

You are given a polynomial of degree n. The polynomial is of the form P(x) = anxn + an-1xn-1 + … + a0, where the ai‘s are the coefficients.  Given an integer x, write a program that will evaluate P(x).

SOLUTION:
#include<stdio.h> /* function to calculate power x^y */ int power(int x, int y){ int pow=1; while (y!=0){ pow*=x; y--; } return pow; }

int main() { int n, x; int a[10]; scanf("%d %d", &n, &x); int i, j, sum=0; for(i=n; i>=0; i--) { scanf("%d", &a[i]); } int temp=0; for(j=n; j>=0; j--) { temp=a[j]*power(x,j); sum=sum+temp; } printf("%d", sum); return 0; }