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4.5 PEOPLE’S WEIGHTS (JAVA)
When it comes to programming, Java is one of the most popular languages used by developers worldwide. In this article, we will delve into the concept of 4.5 people’s weights in Java, exploring how this problem can be solved using various techniques and algorithms.
Understanding the Problem
The 4.5 people’s weights problem is a classic puzzle that involves finding the weights of four individuals based on certain conditions. The problem statement is as follows:
- There are four people with unknown weights.
- The sum of their weights is 4.5 people.
- The weight of the lightest person is 100 pounds.
- The weight of the heaviest person is 200 pounds.
Solving the Problem
One way to approach this problem is by using a brute-force method, where we iterate through all possible combinations of weights for the four individuals and check if they satisfy the given conditions. However, this approach can be inefficient and time-consuming.
A more efficient way to solve the 4.5 people’s weights problem is by using a recursive algorithm. By recursively dividing the problem into smaller subproblems, we can narrow down the search space and find the solution more quickly.
Example
Let’s consider an example to illustrate how the 4.5 people’s weights problem can be solved in Java:
“`java
public class PeopleWeights {
public static void main(String[] args) {
int[] weights = new int[4];
findWeights(weights, 0);
}
public static void findWeights(int[] weights, int index) {
if (index == 4) {
if (weights[0] + weights[1] + weights[2] + weights[3] == 4.5) {
System.out.println(“Weights found: ” + Arrays.toString(weights));
}
return;
}
for (int i = 100; i <= 200; i++) {
weights[index] = i;
findWeights(weights, index + 1);
}
}
}
“`
In this example, we define a recursive function findWeights that iterates through all possible weights for the four individuals and checks if they add up to 4.5 people.
. When a valid combination is found, it is printed to the console.
Conclusion
The 4.5 people’s weights problem in Java is a challenging puzzle that can be solved using various techniques, such as brute-force methods or recursive algorithms. By understanding the problem statement and applying the right approach, developers can find an efficient solution to this problem.
For more information on Java programming and algorithms, you can refer to the official Java documentation.
