找到一个三元组 (X, Y, Z) 使得所有元素都可以被 A 整除，恰好一个可以被 A 和 B 整除，并且 X + Y = Z

给定两个整数A和B ，任务是找到一个三元组(X, Y, Z)使得它们都可以被A整除，其中恰好一个可以被A和B整除，并且X + Y = Z。

例子：

Input: A = 5, B = 3
Output: 10 50 60
Explanation: For the triplet (10, 50, 60), all of them are divisible by 5, 60 is divisible by both 5 and 3, and 10 + 50 = 60. Therefore, (10, 50, 60) is valid triplet. Other possible triplets are (5, 25, 30), (5, 15, 20)

Input: A = 7, B = 11
Output: 28 154 182

方法：给定的问题是一个基于观察的问题，可以使用基础数学来解决。可以观察到，三元组(A, A * B, A * (B + 1))满足所有给定条件，但B的值为1时除外。在这种情况下，可以看出，它们中的一个恰好可以被A和B整除的条件总是会被违反。因此，如果B = 1 ，则不存在有效的三元组，否则打印(A, A * B, A * (B + 1)) 。

下面是上述方法的实现：

C++

// C++ program of the above approach
#include 
using namespace std;
 
// Function to find a triplet (X, Y, Z)
// such that all of them are divisible
// by A, exactly one of them is divisible
// by both A and B, and X + Y = Z
void findTriplet(int A, int B)
{
    // If the value of B is 1
    if (B == 1) {
        cout << -1;
        return;
    }
 
    // Print Answer
    cout << A << " " << A * B
         << " " << A * (B + 1);
}
 
// Driver Code
int main()
{
    int A = 5;
    int B = 3;
    findTriplet(A, B);
 
    return 0;
}

Java

// Java program for the above approach
import java.io.*;
import java.lang.*;
import java.util.*;
 
class GFG {
 
  // Function to find a triplet (X, Y, Z)
  // such that all of them are divisible
  // by A, exactly one of them is divisible
  // by both A and B, and X + Y = Z
  static void findTriplet(int A, int B)
  {
 
    // If the value of B is 1
    if (B == 1) {
      System.out.println(-1);
      return;
    }
 
    // Print Answer
    System.out.println(A + " " + A * B + " " +  A * (B + 1));
  }
 
  // Driver Code
  public static void main (String[] args) {
    int A = 5;
    int B = 3;
    findTriplet(A, B);
  }
}
 
// This code is contributed by hrithikgarg03188.

Python3

# Python code for the above approach
 
# Function to find a triplet (X, Y, Z)
# such that all of them are divisible
# by A, exactly one of them is divisible
# by both A and B, and X + Y = Z
def findTriplet(A, B):
 
    # If the value of B is 1
    if (B == 1):
        print(-1)
        return
 
    # Print Answer
    print(f"{A} {A * B} {A * (B + 1)}")
 
# Driver Code
A = 5
B = 3
findTriplet(A, B)
 
# This code is contributed by Saurabh Jaiswal

C#

// C# program of the above approach
using System;
class GFG
{
 
  // Function to find a triplet (X, Y, Z)
  // such that all of them are divisible
  // by A, exactly one of them is divisible
  // by both A and B, and X + Y = Z
  static void findTriplet(int A, int B)
  {
 
    // If the value of B is 1
    if (B == 1) {
      Console.Write(-1);
      return;
    }
 
    // Print Answer
    Console.Write(A + " " + A * B + " " + A * (B + 1));
  }
 
  // Driver Code
  public static int Main()
  {
    int A = 5;
    int B = 3;
    findTriplet(A, B);
    return 0;
  }
}
 
// This code is contributed by Taranpreet

Javascript

        // JavaScript code for the above approach
 
        // Function to find a triplet (X, Y, Z)
        // such that all of them are divisible
        // by A, exactly one of them is divisible
        // by both A and B, and X + Y = Z
        function findTriplet(A, B)
        {
         
            // If the value of B is 1
            if (B == 1) {
                document.write(-1);
                return;
            }
 
            // Print Answer
            document.write(A + " " + A * B
                + " " + A * (B + 1));
        }
 
        // Driver Code
        let A = 5;
        let B = 3;
        findTriplet(A, B);
 
       // This code is contributed by Potta Lokesh
    

输出

5 15 20

时间复杂度： O(1)
辅助空间： O(1)