#practiceLinkDiv { display: none !important; }Obstajata dva kroga A in B s svojimi središči C1(x1 y1) in C2(x2 y2) in polmer R1 in R2 . Naloga je preveriti, ali se kroga A in B dotikata ali ne.
Primeri:
Priporočena praksa Preverite, ali se dva dana kroga dotikata drug drugega. Poskusite!Vnos: C1 = (3 4)
C2 = (14 18)
R1 = 5 R2 = 8
Izhod: Krogi se med seboj ne dotikajo.
Vnos: C1 = (2 3)
C2 = (15 28)
R1 = 12 R2 = 10
Izhod: Krogi se med seboj sekajo.Vnos: C1 = (-10 8)
C2 = (14 -24)
R1 = 30 R2 = 10
Pristop:
Razdalja med središčima C1 in C2 se izračuna kot
C1C2 = sqrt((x1 - x2) 2 + (y1 - y2) 2 ).
Pojavijo se trije pogoji.
- če C1C2<= R1 - R2: Krog B je znotraj A.
- če C1C2<= R2 - R1: Krog A je znotraj B.
- če C1C2< R1 + R2: Krog seka drug drugega.
- če C1C2 == R1 + R2: Krog A in B se dotikata.
- V nasprotnem primeru Krog A in B se ne prekrivata
Spodaj je izvedba zgornjega pristopa:
C++// C++ program to check if two // circles touch each other or not. #include
// Java program to check if two // circles touch each other or not. import java.io.*; class GFG { static void circle(int x1 int y1 int x2 int y2 int r1 int r2) { double d = Math.sqrt((x1 - x2) * (x1 - x2) + (y1 - y2) * (y1 - y2)); if (d <= r1 - r2) { System.out.println('Circle B is inside A'); } else if (d <= r2 - r1) { System.out.println('Circle A is inside B'); } else if (d < r1 + r2) { System.out.println('Circle intersect' + ' to each other'); } else if (d == r1 + r2) { System.out.println('Circle touch to' + ' each other'); } else { System.out.println('Circle not touch' + ' to each other'); } } // Driver code public static void main(String[] args) { int x1 = -10 y1 = 8; int x2 = 14 y2 = -24; int r1 = 30 r2 = 10; circle(x1 y1 x2 y2 r1 r2); } } // This article is contributed by vt_m.
# Python program to check if two # circles touch each other or not. import math # Function to check if two circles touch each other def circle(x1 y1 x2 y2 r1 r2): d = math.sqrt((x1 - x2) * (x1 - x2) + (y1 - y2) * (y1 - y2)) if(d <= r1 - r2): print('Circle B is inside A') elif(d <= r2 - r1): print('Circle A is inside B') elif(d < r1 + r2): print('Circle intersect to each other') elif(d == r1 + r2): print('Circle touch to each other') else: print('Circle not touch to each other') # Driver code x1 y1 = -10 8 x2 y2 = 14 -24 r1 r2 = 30 10 # Function call circle(x1 y1 x2 y2 r1 r2) # This code is contributed by Aman Kumar
// C# program to check if two // circles touch each other or not. using System; class GFG { static void circle(int x1 int y1 int x2 int y2 int r1 int r2) { double d = Math.Sqrt((x1 - x2) * (x1 - x2) + (y1 - y2) * (y1 - y2)); if (d <= r1 - r2) { Console.Write('Circle B is inside A'); } else if (d <= r2 - r1) { Console.Write('Circle A is inside B'); } else if (d < r1 + r2) { Console.Write('Circle intersect' + ' to each other'); } else if (d == r1 + r2) { Console.Write('Circle touch to' + ' each other'); } else { Console.Write('Circle not touch' + ' to each other'); } } // Driver code public static void Main(String[] args) { int x1 = -10 y1 = 8; int x2 = 14 y2 = -24; int r1 = 30 r2 = 10; circle(x1 y1 x2 y2 r1 r2); } } // This article is contributed by Pushpesh Raj.
// JavaScript program to check if two circles touch each other or not. function circle(x1 y1 x2 y2 r1 r2) { var d = Math.sqrt((x1 - x2) * (x1 - x2) + (y1 - y2) * (y1 - y2)); if (d <= r1 - r2) { console.log('Circle B is inside A'); } else if (d <= r2 - r1) { console.log('Circle A is inside B'); } else if (d < r1 + r2) { console.log('Circle intersect to each other'); } else if (d === r1 + r2) { console.log('Circle touch to each other'); } else { console.log('Circle not touch to each other'); } } // Driver code var x1 = -10 y1 = 8; var x2 = 14 y2 = -24; var r1 = 30 r2 = 10; circle(x1 y1 x2 y2 r1 r2); // this code is contributed by devendra
Izhod
Circle touch to each other
Časovna zapletenost: O(log(n)) zaradi uporabe vgrajene funkcije sqrt
Pomožni prostor: O(1)
Ta članek je prispeval Aarti_Rathi in Dharmendra kumar .