Hi
I am new to forum. I just tried Reverse Root problem and had judgement result as "wrong answer". Below is my code .. just wondering what is wrong with it. Because I ran it on Visual Studio and it seems to give right numbers.

Many Thanks
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#include <iostream>
#include <iomanip>
#include <cmath>
int main(){
    double arr[65536];
    int i = 0;
    int value = 0;
    while(std::cin >> value){
        arr[i++] = sqrt(static_cast<double> (value));
    }
    std::cout<<std::setprecision(4)<<std::fixed;
    while(i--)
        std::cout << arr[i] << std::endl;
}

for example,

std::cout << std::setprecision(4) << sqrt(641234.123) << std::endl

gives result 800.8.

Presicion isn't in it's natural state.

std::cout << std::setiosflags(ios::fixed) << std::setprecision(4) << your_number << std::endl

It is important to set ios::fixed flag.

And 2^32 -1 is smaller than 10^18, so an int cannot hold a larger number from input.

Edited by author 12.11.2012 20:39