第三章 38 題

<span style="font-size:18px;">#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=sum+powers(i,k);  
	return sum;  
}  
int main()  
{  
    int powers(int m,int n);
    int sum_of_powers(int k,int n); 
	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;  
}</span>