Codevs 1389 Product Average

1389 product Average Title Description Description

The product average of the number of n is defined as the product of the n number of n-th square.
Given n positive integers, the product average of the products is obtained.

Given n positive integers, the product average of the products is obtained.

Enter a description input Description

First line, a number n
Next line n number, indicating the given n number

outputs description output Description

A real number that represents the product average of the given numbers, preserving the 2-bit fractional output

sample input to sample

2
2 8

Sample output Sample outputs

4.00

data size & Hint

For 100% of data, n≤100000, each number is a positive integer and no more than 10

#include <cstdio>#include<cmath>using namespacestd;Doublen,x,s=1;intMain () {Doublei; scanf ("%LF",&N);  for(i=1; i<=n;i++) scanf ("%LF", &x), S*=pow (x,1/n);//The pow () can still use it .printf"%0.2LF", s); return 0;}

Codevs 1389 Product Average