I m learning binary search and here i need to find the nth root of a number ,i am not able to figure out the error in the below program please help ~~~~~

include

include

include

include

using namespace std;

double solve(double x, int n){ int iter=200; double low=0; double high=x; while(iter--){ double mid = (low+high)/2; //cout<<mid<<endl; double val = pow(mid,n); cout<<val<<endl; if(val<x)low=mid; else high=mid; } return low; }

int main() { // int t--; int t; cin>>t; while(t--){ double x; cin>>x; int n; cin>>n;

cout<<fixed<<setprecision(12)<<solve(x,n)<<endl;

} return 0; } ~~~~~