四、阅读程序-3

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#include <iostream>
using namespace std;
  
int n,k;
  
int solve1(){
    int l = 0, r = n;
    while(l <= r){
         int mid = (l + r) / 2;
         if (mid * mid <= n) l = mid + 1;
         else r = mid - 1;
     }
     return l - 1;
 }
 
double solve2(double x){
     if (x == 0) return x;
     for (int i = 0; i < k; i++)
         x = (x + n / x) / 2;
     return x;
 }

 int main(){
     cin >> n >> k;
     double ans = solve2(solve1());
     cout << ans << ' ' << (ans * ans == n) << endl;
     return 0;
 }