#include<iostream> #include <stdio.h> #include <string.h> #include <stdlib.h> #include <cmath> using namespace std; int main() { double n; scanf("%lf", &n); double x1,x2; x1 = 1; x2 = 2; while (fabs(x1 - x2) >= 0.00001) { x1 = x2; x2 = (x1 + n / x1)/2; } printf("%.3lf", x2); return 0; } |
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