Generate Random Double
Problem
Solution
#include <iostream>
#include <ctime>
using namespace std;
const int MIN_RAND_NUM = 0;
const int MAX_RAND_NUM = 100;
int main()
{
srand(time(0)); // we want real random, not pseudo-random
// THIS IS HOW YOU CALCULATE A RANDOM DOUBLE BETWEEN 2 USER-DEFINED VARIABLES "MIN_RAND_NUM" and "MAX_RAND_NUM")
// Note that RAND_MAX here is NOT user-defined, but is a constant equal to the max integer value;
double random_double_between_0_1 = rand() * 1.0 / RAND_MAX;
double random_double = (random_double_between_0_1*(MAX_RAND_NUM - MIN_RAND_NUM)) + MIN_RAND_NUM;
cout << "My random double is " << random_double << endl;
}
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