Answer to Question #208197 in C++ for champu

Question

Use the concept of aggregation/composition to write a C++ program which will ask the user

to enter the center points and radii for two circles. Then find the perimeters of both the circles

and decide whether the circles will intersect or not.

Answer 1

// C++ program to check if two
// circles touch each other or not.
#include <bits/stdc++.h>
using namespace std;
 
int circle(int x1, int y1, int x2,
           int y2, int r1, int r2)
{
    int distSq = (x1 - x2) * (x1 - x2) +
                 (y1 - y2) * (y1 - y2);
    int radSumSq = (r1 + r2) * (r1 + r2);
    if (distSq == radSumSq)
        return 1;
    else if (distSq > radSumSq)
        return -1;
    else
        return 0;
}
 
// Driver code
int main()
{
    int x1 = -10, y1 = 8;
    int x2 = 14, y2 = -24;
    int r1 = 30, r2 = 10;
    int t = circle(x1, y1, x2,
                   y2, r1, r2);
    if (t == 1)
        cout << "Circle touch to"
             << " each other.";
    else if (t < 0)
        cout << "Circle not touch"
             << " to each other.";
    else
        cout << "Circle intersect"
             << " to each other.";
}