Question

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Answer 1

#include<iostream>
#include<stdlib.h>
#include<time.h>
#include<iomanip>
#include<math.h>

using namespace std;

int main(){

   srand(time(NULL));
   cout << "Enter number of times to generate 2 points:";
   int n;
   cin >> n;
   double sum = 0;
   for (int i = 0; i<n; i++){
      double x1 = ((double)rand() / (RAND_MAX));
      double y1 = ((double)rand() / (RAND_MAX));
      double x2 = ((double)rand() / (RAND_MAX));
      double y2 = ((double)rand() / (RAND_MAX));
      double d = sqrt((x1-x2)*(x1-x2) + (y1-y2)*(y1-y2));
      sum = sum + d;
   }
   cout << "The average distance is " << fixed << setprecision(2) << sum/(double)n << endl;
}