The coding test is an important process for evaluating the skills of a software developer. In particular, in the field of game development, the ability to effectively utilize algorithms and data structures is essential. In this course, we will examine the process of solving algorithm problems necessary for game development using Java.
Problem: Calculating Character Experience Points
In the game, characters gain experience points by defeating enemies or completing quests. Write an algorithm to calculate the total experience points of a character according to the following conditions.
- The character has multiple sources of experience points.
- Each source of experience points can have experience points and a multiplier for the experience it provides.
- The character can reach a maximum level, requiring a specific amount of experience points to reach that level.
- The character’s maximum level is 100, and the experience required for each level-up increases from the previous level.
Input Format
The first line contains the number of experience sources N. The second line contains the experience information of each source as integers. The last line contains the experience points required for maximum level-up.
Output Format
Calculate and output the total experience points.
Example
Input:
3
100 200 300
600
Output:
600
Problem Analysis
The key to this problem is understanding how to calculate the total experience points of the character through each experience source. First, analyze the number of experience sources and identify the input that needs to be processed.
Since each source directly contributes to the character’s experience points, we can approach the problem by iterating through all the sources and summing them up. This allows us to efficiently calculate the total experience points.
Requirements for Problem Solving
- An array or list to store and iterate through each experience source
- A variable to store the total experience points
- Logic to add experience points by iterating through the list
- A condition to check if the total experience points can reach the maximum level
Java Code Implementation
public class ExperienceCalculator {
public static void main(String[] args) {
Scanner scanner = new Scanner(System.in);
int N = scanner.nextInt();
int[] experienceSources = new int[N];
for (int i = 0; i < N; i++) {
experienceSources[i] = scanner.nextInt();
}
int maxLevelExperience = scanner.nextInt();
int totalExperience = calculateTotalExperience(experienceSources);
System.out.println(totalExperience);
}
public static int calculateTotalExperience(int[] sources) {
int total = 0;
for (int experience : sources) {
total += experience;
}
return total;
}
}
The above code stores the experience sources entered by the user in an array and calculates the total experience points by iterating through it. Finally, it outputs the calculated experience points.
TEST
To ensure the accuracy of the code, various test cases should be conducted. Here are a few test cases.
- When there is one experience source
- When all experience sources are 0
- When experience sources are positive
- When experience sources are negative
Conclusion
In this course, we explored the process of solving the problem of calculating the total experience points of a game character through Java. Solving algorithm problems is an essential skill in game development, so I hope you will build your skills through ample practice and various problem-solving.
In the future, I hope you will solve more diverse algorithm problems and gain deeper insights necessary for game development.