【codeforces 747A】Display Size

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A big company decided to launch a new series of rectangular displays, and decided that the display must have exactly n pixels.

Your task is to determine the size of the rectangular display — the number of lines (rows) of pixels a and the number of columns of pixels b, so that:

  • there are exactly n pixels on the display;
  • the number of rows does not exceed the number of columns, it means a ≤ b;
  • the difference b - a is as small as possible.
Input

The first line contains the positive integer n (1 ≤ n ≤ 106) — the number of pixels display should have.

Output

Print two integers — the number of rows and columns on the display.

Example
Input
8
Output
2 4
Input
64
Output
8 8
Input
5
Output
1 5
Input
999999
Output
999 1001
Note

In the first example the minimum possible difference equals 2, so on the display should be 2 rows of 4 pixels.

In the second example the minimum possible difference equals 0, so on the display should be 8 rows of 8 pixels.

In the third example the minimum possible difference equals 4, so on the display should be 1 row of 5 pixels.




同样的贪心,开平方之后从大到小找第一个解,math函数库里的sqrt函数的参数不能放int不然会CE,重载调用的问题,可以强转


AC代码:

#include<iostream>#include<algorithm>#include<math.h>#include<cstring>using namespace std;int main(){    double m;    while(cin>>m)    {        int a, b;        double y = sqrt(m);        int x = (int)y;        int n = int(m);        if(n % x == 0)        {            a = x;            b = n / x;        }        else        {            while(n % x != 0)            {                x--;            }            a = x;            b = n / x;        }        cout<<a<<" "<<b<<endl;    }    return 0;}