P123 第38题 powers sum_of_powers !!!

#include<stdio.h>int powers(int m,int n){ int i,sum=1; for (i=0;i<n;i++) {  sum*=m; } return sum;}int sum_of_powers(int k,int n){ int i,sum=0; for(i=1;i<=n;i++) sum+=powers(i,k); return sum;}int main(){ int a,b; while(1) { scanf("%d%d",&a,&b); printf("sum of %d powers of intergers from 1 to %d =%d\n",a,b,sum_of_powers(a,b)); } return 0;}