reflow.cpp

#include <iostream>
#include <cstdio>
#include <cmath>

using namespace std;

struct Pair {
	double a;
	double b;
};

void relativeFlow(Pair expected, Pair actual);

int main() {
    Pair expected, actual;
    expected.a = 0.895;
    expected.b = 7.21;
    actual.a = static_cast<double>(17) / 19;
    actual.b = static_cast<double>(sqrt(52));

    relativeFlow(expected, actual);
}

void relativeFlow(Pair expected, Pair actual) {
    Pair delta, reflow;
    delta.a = fabs(actual.a - expected.a);
    delta.b = fabs(actual.b - expected.b);
    reflow.a = (static_cast<double>(delta.a) / expected.a) * 100; 
    reflow.b = (static_cast<double>(delta.b) / expected.b) * 100;

    printf("expected:\na = %f, b = %f\nactual:\na = %f, b = %f\ndelta:\na = %f, b = %f\nreflow:\na = %f, b = %f\n",
        expected.a, expected.b, actual.a, actual.b, delta.a, delta.b, reflow.a, reflow.b);
    
    if (reflow.a > reflow.b) {
        printf("B is more accurate");   
    } else {
        printf("A is mote accurate");   
    }
}