求数列和
A(n+1)=sqrt(A(n))
1 #include<stdio.h> 2 #include<stdlib.h> 3 #include<math.h> 4 #include<string.h> 5 int main() 6 { 7 double n,t; 8 int m; 9 double sum; 10 while (scanf("%lf",&n)!=EOF) 11 { 12 scanf("%d",&m); 13 sum=0; 14 while(m--) 15 { 16 sum+=n; 17 n=sqrt(n); 18 } 19 printf("%.2lf ",sum); 20 } 21 return 0; 22 }