求和训练题解

解题思路:

注意事项:

参考代码:

a,b,c=map(int,input().split())

alist=[int(x) for x in range(1,a+1)]

blist=[int(x)*int(x) for x in range(1,b+1)]

clist=[1/int(x) for x in range(1,c+1)]

print("{:.2f}".format(sum(alist)+sum(blist)+sum(clist)))